HYLAFAX-CONFIG   (5) manpage
HYLAFAX-CONFIG
5
$Date: 2005/01/01 21:27:17 $
  • NAME
      config - (Fx configuration database
  • DESCRIPTION
      (Fx uses a configuration file for the central queueing agent and for each facsimile modem attached to a machine. These files contain information about the modems and about how the (Fx server processes that service these modem should operate. Configuration files are located in the etc subdirectory. The configuration file for the faxq(8) program is named config . The per-modem configuration files used by the faxgetty(8) , faxsend(8) , and pagesend(8) programs have names of the form config. devid , where devid is an identifier derived from the name of the modem's device file; for example ttym2 for /dev/ttym2 , term_10 for /dev/term/10 .

      Configuration files have a simple format and are entirely ASCII. A configuration parameter is of the form

      tag: value


      where a tag identifies a parameter and a value is either a string, number, or boolean value. Comments are introduced by the ``#'' character and extend to the end of the line. String values start at the first non-blank character after the ``:'' and continue to the first non-whitespace character or, if whitespace is to be included, may be enclosed in quote marks (``"''). String values enclosed in quote marks may also use the standard C programming conventions for specifying escape codes; e.g. ``\n'' for a newline character and ``\xxx'' for an octal value. Numeric values are specified according to the C programming conventions (leading ``0x'' for hex, leading ``0'' for octal, otherwise decimal), except for a few parameters, such as RecvFileMode , whose value is interpreted strictly as an octal number and PageChopThreshold whose value is interpreted strictly as a floating point number. Boolean values are case insensitive. For a true value, either ``Yes'' or ``On'' should be used. For a false value, use ``No'' or ``Off''.

      The following table itemizes the tags and the expected type of their value. The first part lists items specific to the operation of each server, while the second part has items related to the servicing of the modem. Parameters marked with a (S1 are used only by the (Fx scheduler process and should appear only in the file named config . Parameters marked with a (S2 are used by both the scheduler and the per-device applications and so should appear in all appropriate configuration files (i.e. config and any per-device files that make sense). Parameters not otherwise marked should appear only in per-device configuration files. More detailed information about each item is given following the table.

      
      Tag Type Default Description
      AdaptiveAnswer boolean No enable adaptive answer of inbound calls
      AdminGroup string
      faxadmin System user group for administration (if PAM enabled)
      AnswerRotary string
      Any alternatives for answering calls
      AnswerBias integer - bias to apply to successful rotary answer
      AreaCode(S2 string - local area code
      CIDName string - Caller
      ID or DNIS name pattern string
      CIDNameAnswerLength integer
      0 answer call when CIDName received
      CIDNumber string - Caller
      ID or DNIS number pattern string
      CIDNumberAnswerLength integer
      0 answer call when CIDNumber received
      ClocalAsRoot boolean
      No set CLOCAL using root UID
      ContCoverCmd(S1 string
      bin/mkcover continuation cover page generation script
      ContCoverPage(S1 string - continuation cover page template filename
      CountryCode(S2 string - local country code
      DestControls(S1 string - per-destination controls file
      DeviceMode octal
      0600 protection mode to use for modem device
      DialStringRules(S2 string - dial string rules file
      DistinctiveRings string - configuration for distinctive ring cadences
      DRingOff string - distinctive ring ``off'' cadence indicator
      DRingOn string - distinctive ring ``on'' cadence indicator
      DynamicConfig string - script for dynamic receive configuration
      FAXNumber string - facsimile modem phone number
      FaxRcvdCmd string
      bin/faxrcvd notification script for received facsimile
      GettyArgs string - arguments passed to getty program
      InternationalPrefix(S2 string - dialing prefix for international calls
      JobReqBusy integer
      180 requeue interval for BUSY dial result
      JobReqDataConn integer
      300 requeue interval for data connection dial result
      JobReqNoAnswer integer
      300 requeue interval for NO ANSWER dial result
      JobReqNoCarrier integer
      300 requeue interval for NO CARRIER dial result
      JobReqNoFCon integer
      300 requeue interval for carrier without +FCON dial result
      JobReqOther(S2 integer
      300 requeue interval for ``other'' problems
      JobReqProto integer
      60 requeue interval after fax protocol error
      LockDataCalls boolean
      Yes lock modem for the duration of an inbound data call
      LockVoiceCalls boolean
      Yes lock modem for the duration of an inbound voice call
      LogCalls boolean
      Yes Log all incoming calls as CALL records in xferfaxlog
      LogFacility(S2 string
      daemon syslog facility name for ServerTracing messages
      LogFileMode octal 0600 protection mode to use for session log files
      LocalIdentifier string - local station identification string
      LongDistancePrefix string - dialing prefix for long distance calls
      MaxConcurrentCalls(S1 integer
      1 max concurrent jobs to process for a destination
      MaxConsecutiveBadLines integer
      5 max consecutive bad rows for OK page quality
      MaxDials(S1 integer
      12 max phone calls to make to transmit a job
      MaxRecvPages integer
      unlimited max pages to permit in a receive
      MaxSendPages(S1 integer
      unlimited max pages to permit in a send
      MaxSetupAttempts integer
      2 max attempts to initialize a modem
      MaxTries(S1 integer
      3 max attempts to transmit a job
      ModemGroup(S1 string - define a name for a set of modems
      ModemPriority integer 255 scheduling priority for outbound jobs
      ModemReadyState string
      R ``ready state'' sent by faxgetty
      ModemRingResponse string - command to respond after hearing RING
      ModemRingsBeforeResponse integer 0 the number of rings before ModemRingResponse
      NoAnswerVoice boolean
      false disable the answering of voice-indicated calls
      NoCarrierRetrys integer
      1 number of times to retry dialing on ``NO CARRIER''
      NotifyCmd(S2 string
      bin/notify user notification command script
      PageChop(S1 string
      last control automatic truncation of trailing whitespace
      PageChopThreshold(S1 float
      3.0 whitespace truncation threshold (inches)
      PCL2FaxCmd(S1 string
      bin/pcl2fax PCL RIP command script
      PercentGoodLines integer
      95 percentage of good rows for OK page quality
      PollLockWait(S2 integer
      30 polling interval for lockfile presense/removal (secs)
      PollModemWait integer
      30 polling interval when in ``modem wait'' state (secs)
      PollRcvdCmd string
      bin/pollrcvd delivery script for facsimile received by polling
      PostScriptTimeout(S1 integer
      300 timeout on (Ps interpreter runs (secs)
      PriorityScheduling boolean
      see below use available priority job scheduling mechanism
      PS2FaxCmd(S1 string
      bin/ps2fax (Ps RIP command script
      QualifyCID string - file of Caller-ID or DNIS patterns for checking inbound calls
      QualifyPWD string - file of
      PWD patterns for qualifying senders
      QualifyTSI string - file of
      TSI patterns for qualifying senders
      RecvDataFormat string
      adaptive format for received facsimile data
      RecvFileMode octal
      0600 protection mode to use for received facsimile files
      RingData string - distinctive ring data call identifier
      RingExtended string - extended ring message identifier
      RingFax string - distinctive ring fax call identifier
      RingsBeforeAnswer integer
      0 rings to wait before answering phone
      RingTimeout integer
      6000 timeout in ms after RING before reset
      RingVoice string - distinctive ring voice call identifier
      RTNHandlingMethod string
      Retransmit RTN signal handling method
      SaveUnconfirmedPages boolean
      true save or delete unconfirmed pages
      SendFaxCmd(S1 string
      bin/faxsend fax transmit command script
      SendPageCmd(S1 string
      bin/pagesend pager transmit command script
      SendUUCPCmd(S1 string
      bin/uucpsend UUCP transmit command script
      ServerTracing(S2 integer
      1 non-session server tracing
      SessionTracing(S2 integer
      1 send and receive session tracing
      SpeakerVolume string
      Quiet volume level for modem speaker
      TagLineFont string - tag line font filename
      TagLineFormat string
      see below tag line format string
      TIFF2FaxCmd(S1 string
      bin/tiff2fax TIFF converter command script
      TimeOfDay(S1 string
      Any default time-of-day restrictions
      Use2D(S1 boolean
      Yes restrict/permit use of 2D-encoded fax data
      UUCPLockMode(S2 octal
      0600 protection mode for UUCP lock files
      UUCPLockDir(S2 string
      see below UUCP lockfile directory
      UUCPLockTimeout(S2 integer
      30 time before removing stale UUCP lockfile
      UUCPLockType(S2 string
      see below UUCP lockfile type
      VGettyArgs string - arguments passed to voice getty program
      WedgedCmd(S1 string
      bin/wedged command to run when modem is wedged


      ModemAnswerCmd string ATA command for answering phone
      ModemAnswerDataBeginCmd string - command for start of answered data call
      ModemAnswerDataCmd string
      ATA command for answering data call
      ModemAnswerDialCmd string
      ATA command for answering data call
      ModemAnswerFaxBeginCmd string - command for start of answered fax call
      ModemAnswerFaxCmd string
      ATA command for answering fax call
      ModemAnswerResponseTimeout integer
      180000 answer command timeout (ms)
      ModemAnswerVoiceBeginCmd string - command for start of answered voice call
      ModemAnswerVoiceCmd string
      ATA command for answering voice call
      ModemATCmdDelay integer
      0 delay before sending modem an AT cmd (ms)
      ModemBaudRateDelay integer
      10 delay (ms) after setting baud rate
      ModemClassQueryCmd string
      AT+FCLASS=? command for querying modem services
      ModemCommaPauseTimeCmd string
      ATS8=2 command for setting time to pause for ``,'' in dialing string
      ModemDialCmd string
      ATDT%s command for dialing (%s for number to dial)
      ModemDialResponseTimeout integer
      180000 dialing command timeout (ms)
      ModemDTRDropDelay integer
      75 delay (ms) between DTR OFF and DTR ON
      ModemEchoOffCmd string
      ATE0 command for disabling command echo
      ModemFlowControl string
      XONXOFF DTE-DCE flow control scheme
      ModemFrameFillOrder string
      LSB2MSB bit order for HDLC frames
      ModemHardFlowCmd string - command for setting hardware flow control between
      DTE and DCE
      ModemMinSpeed string
      2400 minimum acceptable transmit speed
      ModemMfrQueryCmd string - command for querying modem manufacturer
      ModemModelQueryCmd string - command for querying modem model
      ModemNoAutoAnswerCmd string
      ATS0=0 command for disabling auto-answer
      ModemNoFlowCmd string - command for disabling hardware flow control between
      DTE and DCE
      ModemOnHookCmd string
      ATH0 command for placing phone ``on hook''
      ModemPageDoneTimeout integer
      180000 page send/receive timeout (ms)
      ModemPageStartTimeout integer
      180000 page send/receive timeout (ms)
      ModemRate integer
      19200 baud rate to use for DCE-DTE communication
      ModemReadyCmds string - additional final commands when resetting modem
      ModemRecvFillOrder string
      see below bit order for received facsimile data
      ModemRecvSuccessCmd string - command to send after a successful reception
      ModemResetCmds string - additional commands when resetting modem
      ModemResetDelay integer
      2600 delay (ms) after placing DTR ON
      ModemResultCodesCmd string
      ATQ0 command for enabling result codes
      ModemRevQueryCmd string
      see below command for querying modem firmware revision
      ModemSendBeginCmd string - command to send on establishing carrier
      ModemSendFillOrder string
      LSB2MSB bit order for sending facsimile data
      ModemSetVolumeCmd string
      see below commands for setting modem speaker volume level
      ModemSetupAACmd string - command for setting up adaptive answer
      ModemSetupDCDCmd string - command for setting up
      DCD handling
      ModemSetupDTRCmd string - command for setting up
      DTR handling
      ModemSoftFlowCmd string - command for setting software flow control between
      DTE and DCE
      ModemSoftResetCmd string
      ATZ command for doing a soft reset
      ModemSoftResetCmdDelay integer
      3000 time, in ms, to pause after a soft reset
      ModemSoftRTFCC boolean
      Yes enable software-driven real-time fax compression conversion
      ModemType string
      see below modem type
      ModemVerboseResultsCmd string
      ATV1 command for enabling verbose result codes
      ModemWaitForConnect boolean
      No force server to wait for ``CONNECT'' response on answer
      ModemWaitTimeCmd string
      ATS7=60 command for setting time to wait for carrier when dialing


      FaxT1Timer integer 35000 CCITT T.30 T1 timer (ms)
      FaxT2Timer integer
      7000 CCITT T.30 T2 timer (ms)
      FaxT4Timer integer
      3100 CCITT T.30 T4 timer (ms)


      Class0Cmd string AT+FCLASS=0 Class 0: command to enter class 0


      Class1Cmd string AT+FCLASS=1 Class 1: command to enter class 1
      Class1Cmd string
      AT+FCLASS=1.0 Class 1.0: command to enter class 1
      Class1EnableV34Cmd string - Class 1/1.0: command to enable V.34-fax support
      Class1ECMSupport boolean
      Yes Class 1/1.0: enable T.30-A ECM support
      Class1PersistentECM boolean
      Yes Class 1/1.0: to continue to correct while in ECM
      Class1ECMFrameSize integer
      256 Class 1/1.0: image frame size in ECM protocol
      Class1ExtendedRes boolean - Class 1/1.0: enable extended resolution support
      Class1HFLOCmd string - Class 1/1.0: command to set hardware flow control
      Class1FrameOverhead integer
      4 Class 1/1.0: extra bytes in a received HDLC frame
      Class1NFLOCmd string - Class 1/1.0: command to set no flow control
      Class1RecvAbortOK integer
      200 Class 1/1.0: max wait (ms) for ``OK'' after recv abort
      Class1RecvIdentTimer integer
      40000 Class 1/1.0: max wait (ms) for initial ident frame
      Class1SFLOCmd string - Class 1/1.0: command to set software flow control
      Class1PPMWaitCmd string
      AT+FTS=7 Class 1/1.0: command to stop and wait before PPM
      Class1ResponseWaitCmd string - Class 1/1.0: command to wait before TCF response
      Class1Resolutions integer
      0x7F Class 1/1.0: bitmap of supported resolutions
      Class1RMQueryCmd string
      AT+FRM=? Class 1/1.0: command to query modem data reception rates
      Class1TCFWaitCmd string
      AT+FTS=7 Class 1/1.0: command to stop and wait before TCF
      Class1TMQueryCmd string
      AT+FTM=? Class 1/1.0: command to query modem data transmission rates
      Class1EOPWaitCmd string
      AT+FTS=9 Class 1/1.0: command to stop and wait before EOP
      Class1MsgRecvHackCmd string
      "" Class 1/1.0: command to avoid +FCERROR before image data
      Class1TCFMaxNonZero integer
      10 Class 1/1.0: max% of non-zero data in good TCF
      Class1TCFMinRun integer
      1000 Class 1/1.0: minimum zero run in good TCF
      Class1TCFRecvHack boolean
      No Class 1/1.0: deliberately look for carrier loss before TCF
      Class1TCFRecvTimeout integer
      4500 Class 1/1.0: max wait (ms) for TCF
      Class1TCFResponseDelay integer
      75 Class 1/1.0: delay between TCF and ack/nak
      Class1TMConnectDelay integer
      0 Class 1/1.0: delay between +FTM CONNECT and data transmission
      Class1SendMsgDelay integer
      200 Class 1/1.0: delay before sending image data
      Class1SwitchingCmd string
      AT+FRS=7 Class 1/1.0: command to ensure silence after HDLC reception
      Class1TrainingRecovery integer
      1500 Class 1/1.0: delay after failed training
      Class1ValidateV21Frames boolean
      No Class 1/1.0: check FCS against received frames


      Class2Cmd string AT+FCLASS=2 Class 2: command to enter class 2/2.0
      Class2AbortCmd string
      AT+FK Class 2: command to abort active session
      Class2APCmd string
      AT+FAP Class 2: enable support for sending and receiving SUB, SEP, and PWD frames
      Class2APQueryCmd string
      AT+FAP=? Class 2: query capabilities for sending and receiving SUB, SEP, and PWD frames
      Class2BORCmd string
      AT+FBOR=0 Class 2: command to setup bit order
      Class2BUGCmd string
      AT+FBUG=1 Class 2: command to enable HDLC frame tracing
      Class2CIGCmd string
      AT+FCIG Class 2: command to set polling identifier
      Class2CRCmd string
      AT+FCR=1 Class 2: command to enable receive capability
      Class2CQCmd string - Class 2: command to setup copy quality parameters
      Class2CQQueryCmd string
      AT+FCQ=? Class 2: command to query modem copy quality capabilities
      Class2DCCCmd string
      AT+FDCC Class 2: command to set modem capabilities
      Class2DCCQueryCmd string
      AT+FDCC=? Class 2: command to query modem capabilities
      Class2DISCmd string
      AT+FDIS Class 2: command to set session parameters
      Class2DDISCmd string - Class 2: command to set session parameters before dialing
      Class2ECMType string
      ``2'' Class 2: ECM specification type to follow
      Class2HexNSF boolean
      Yes Class 2: parse NSF strings as hex values
      Class2HFLOCmd string - Class 2: command to set hardware flow control
      Class2LIDCmd string
      AT+FLID Class 2: command to set local identifier string
      Class2MINSPCmd string
      AT+FMINSP Class 2: command to set minimum transmit speed
      Class2NFLOCmd string - Class 2: command to set no flow control
      Class2PACmd string
      AT+FPA Class 2: set polling address string
      Class2PHCTOCmd string
      AT+FPHCTO=30 Class 2: command to set Phase C timeout parameter
      Class2PTSCmd string
      AT+FPTS Class 2: command to set received page status
      Class2PWCmd string
      AT+FPW Class 2: set password string
      Class2RecvDataTrigger string
      ``\21'' Class 2: character to send to trigger recv
      Class2RELCmd string - Class 2: command to enable byte-aligned
      EOL codes
      Class2SACmd string
      AT+FSA Class 2: set destination subaddress string
      Class2SendRTC boolean
      No Class 2: append RTC to page data on transmit
      Class2SFLOCmd string - Class 2: command to set software flow control
      Class2SPLCmd string
      AT+FSPL Class 2: command to set polling request
      Class2TBCCmd string
      AT+FTBC=0 Class 2: command to enable stream mode
      Class2UseLineCount boolean
      No Class 2: use the line count from the firmware decoder
      Class2UseHex boolean
      No Class 2: parse capabilities strings as hex values
      Class2XmitWaitForXON boolean
      Yes Class 2: wait for XON before sending facsimile data


      Class2Cmd string AT+FCLASS=2.0 Class 2.0: command to enter class 2/2.0
      Class2AbortCmd string
      AT+FKS Class 2.0: command to abort active session
      Class2APCmd string
      AT+FAP Class 2.0: enable support for sending and receiving SUB, SEP, and PWD frames
      Class2APQueryCmd string
      AT+FAP=? Class 2.0: query capabilities for sending and receiving SUB, SEP, and PWD frames
      Class2BORCmd string
      AT+FBO=0 Class 2.0: command to setup bit order
      Class2BUGCmd string
      AT+FBU=1 Class 2.0: command to enable HDLC frame tracing
      Class2CIGCmd string
      AT+FPI Class 2.0: command to set polling identifier
      Class2CRCmd string
      AT+FCR=1 Class 2.0: command to enable receive capability
      Class2CQCmd string - Class 2.0: command to setup copy quality parameters
      Class2CQQueryCmd string
      AT+FCQ=? Class 2.0: command to query modem copy quality capabilities
      Class2DCCCmd string
      AT+FCC Class 2.0: command to set modem capabilities
      Class2DCCQueryCmd string
      AT+FCC=? Class 2.0: command to query modem capabilities
      Class2DISCmd string
      AT+FIS Class 2.0: command to set session parameters
      Class2ECMType string
      ``2.0'' Class 2.0: ECM specification type to follow
      Class2HexNSF boolean
      Yes Class 2.0: parse NSF strings as hex values
      Class2HFLOCmd string
      AT+FLO=2 Class 2.0: command to set hardware flow control
      Class2LIDCmd string
      AT+FLI Class 2.0: command to set local identifier string
      Class2MINSPCmd string
      AT+FMS Class 2.0: command to set minimum transmit speed
      Class2NFLOCmd string
      AT+FLO=0 Class 2.0: command to set no flow control
      Class2NRCmd string
      AT+FNR=1,1,1,1 Class 2.0: command to set negotiation message reporting
      Class2PACmd     string
      AT+FPA Class 2.0: set polling address string
      Class2PHCTOCmd string
      AT+FCT=30 Class 2.0: command to set Phase C timeout parameter
      Class2PIECmd string
      AT+FIE=0 Class 2.0: command to set procedure interrupt handling
      Class2PWCmd     string
      AT+FPW Class 2.0: set password string
      Class2PTSCmd string
      AT+FPS Class 2.0: command to set received page status
      Class2PTSQueryCmd string
      AT+FPTS? Class 2.0: command to query received page status
      Class2RecvDataTrigger string
      ``\22'' Class 2.0: character to send to trigger recv
      Class2RELCmd string - Class 2.0: command to enable byte-aligned
      EOL codes
      Class2RTFCC boolean
      No Class 2.0: enable real-time fax compression conversion
      Class2SACmd     string
      AT+FSA Class 2.0: set destination subaddress string
      Class2SendRTC boolean
      No Class 2.0: append RTC to page data on transmit
      Class2SFLOCmd string
      AT+FLO=1 Class 2.0: command to set software flow control
      Class2SPLCmd string
      AT+FSP Class 2.0: command to set polling request
      Class2TBCCmd string
      AT+FPP=0 Class 2.0: command to enable stream mode
      Class2UseLineCount boolean
      No Class 2.0: use the line count from the firmware decoder
      Class2UseHex boolean
      No Class 2.0: parse capabilities strings as hex values


      PagerSetupCmds string - commands for setting up modem for a pager call
      PagerMaxMsgLength integer 128 max length of a text message


      IXOService string ``PG'' IXO: service identification string
      IXODeviceID string
      ``1'' IXO: device identification string
      IXOMaxUnknown integer
      3 IXO and UCP: max unknown responses before abort
      IXOIDProbe integer
      2 IXO: time between sending \r during ID sequence (secs)
      IXOIDTimeout integer
      20 IXO: max time to wait for ID= response (secs)
      IXOLoginRetries integer
      3 IXO: max attempts to login
      IXOLoginTimeout integer
      15 IXO: max time to complete login (secs)
      IXOGATimeout integer
      30 IXO: max time to wait for Go-Ahead response (secs)
      IXOXmitRetries integer
      3 IXO and UCP: max retries to send text msg block
      IXOXmitTimeout integer
      15 IXO and UCP: max time to transmit text msg block
      IXOAckTimeout integer
      30 IXO: max time to wait for msg block ack (secs)
  • SERVER-ORIENTED CONFIGURATION PARAMETERS



      These configuration parameters affect the general
      operation of the fax server.
      AdaptiveAnswer
      Control whether or not an adaptive answering
      strategy is used whereby an incoming call is
      answered in multiple ways according to the list specified in the
      AnswerRotary parameter.
      For example, if adaptive answering is enabled and
      AnswerRotary specifies ``fax data'', then an incoming call will
      first be answered as fax using
      ModemAnswerFaxCmd and then, if that fails, as data using
      ModemAnswerDataCmd .
      If the adaptive answer strategy is not enabled, then calls
      are answered using the appropriate
      ModemAnswer*Cmd parameter (normally
      ModemAnswerCmd for unattended operation).
      Note that the adaptive answer strategy depends on many factors
      that limit its usefulness.
      When calls are answered first as fax,
      it typically only works with a Class 1 modem because it is
      important that the sequence of operations related to answering
      as fax be completed in a short enough time that a subsequent
      answer for data be done before the caller times out and hangs
      up the telephone
      (for this reason
      Class1RecvIdentTimer should be set to a value that is shorter than
      FaxT1Timer .)
      Also, note that it is sometimes necessary to arrange that the phone be
      placed on-hook between successive answers; this can typically be
      done by inserting the appropriate command at the start of the
      second and subsequent
      ModemAnswer*Cmd s.
      AdminGroup
      Tells PAM what user group is allowed to administer the fax server.
      Only useful if the server is compiled with PAM enabled.
      AnswerRotary
      The sequence of answering techniques the server should
      ``rotate through'' when answer incoming calls.
      Answering techniques are:


      
      Name	Description
      fax	answer a fax call
      data	answer a data call
      voice	answer a voice call
      extern	use the vgetty application to answer a call
      any	answer a call of any/unknown type
      


      When a call is not answered succesfully, the server advances the rotary to the next specified answering technique. If AdaptiveAnswer is enabled, the server will try all the answering techniques for each incoming call. Otherwise, the rotary is advanced between unsuccessful phone calls. For example, if AdaptiveAnswer is disabled and AnswerRotary is ``fax data'', then the calls will initially be answered as fax until the first call is received that does not appear to be from a fax machine; after that calls will be answered as if they were from a data modem until the next unsuccessful call; after which they will one again be answered as fax. Only the first three techniques listed are used; any additional ones are (silently) ignored. See also AnswerBias .
      AnswerBias
      The index into the AnswerRotary list that the server should rotate the list to after each successful incoming phone call. List indices are numbered starting at zero. For example, if AnswerRotary is ``fax data'' and AnswerBias is 1, then after each successful inbound call, the next call will be answered as data.
      AreaCode(S2
      The local area code in which the facsimile modem resides. This value is passed to the dial string rules that are used, for example, to formulate canonical phone numbers for dialing (see DialStringRules below.)
      CIDName
      A string that identifies the caller's identity in any Caller-ID status messages or the called identity in any DNIS messages. The specified string is compared against any unrecognized status messages received from the modem before ModemAnswerCmd is sent to the modem. If there is a match, then the remainder of the message is returned as the ``caller name''. For example, for the ZyXEL U-1496 this parameter would be set to ``CALLER NAME: '' (note the trailing space). If more than one message matches, then the message remainders are concatenated. See also CIDNumber and QualifyCID .
      CIDNameAnswerLength
      An integer indicating the minimum number of characters in CIDName to be received when ModemAnswerCmd is sent to the modem irrespective of any RingsBeforeAnswer value greater than zero.  This allows the answering of calls which deliver CID/DID data but not RINGs. A value of zero for CidNameAnswerLength disables this feature.
      CIDNumber
      A string that identifies the caller's phone number in any Caller-ID status messages or the called number in any DNIS messages. The specified string is compared against any unrecognized status messages received from the modem before ModemAnswerCmd is sent to the modem. If there is a match, then the remainder of the message is returned as the phone number of the caller. For example, for the ZyXEL U-1496 this parameter would be set to ``CALLER NUMBER: ''. If more than one message matches, then the message remainders are concatenated. See also CIDName and QualifyCID .
      The special CIDNumber value of "SHIELDED_DTMF" is used in conjunction with ModemRingResponse and CIDNumberAnswerLength. After executing ModemRingResponse, HylaFAX will expect DTMF data (usually DLE-shielded) for CIDNumber until CIDNumberAnswerLength is reached.  Note that if the modem is in voice mode to hear these DTMF digits, then it must be returned to fax mode in the ModemAnswerCmd.
      For example, the following settings will cause HylaFAX to enter voice mode and go off-hook when a RING is detected.  It will then expect four DTMF digits (presumably for routing), and then it will return to fax mode and answer the call.
      
      
        ModemRingResponse:     AT+FCLASS=8;H1
        CIDNumber:             SHIELDED_DTMF
        CIDNumberAnswerLength: 4
        ModemAnswerCmd:        AT+FCLASS=1;A
      
      CIDNumberAnswerLength
      An integer indicating the minimum number of characters in CIDNumber to be received when ModemAnswerCmd is sent to the modem irrespective of any RingsBeforeAnswer value greater than zero.  This allows the answering of calls which deliver CID/DID data but not RINGs. A value of zero for CidNumberAnswerLength disables this feature.
      ClocalAsRoot
      Control whether operations that set the CLOCAL bit on the modem device special file are done with the effective user-ID set to the super-user or the ``fax'' user. By default such operations are done as the fax user, except under IRIX where they are done as the super-user (because IRIX disallows manipulation of CLOCAL by anyone but the super-user).
      ContCoverCmd(S1
      The command to invoke to generate a continuation cover page; see ContCoverPage and mkcover(8) .
      ContCoverPage(S1
      A template file to use in creating "continuation cover pages" . If this parameter is non-null, then the server will pass the filename to the command specified by ContCoverCmd to generate cover pages for outbound jobs that are continued after protocol errors. These cover pages identify the receiver and indicate that the document is a continued transmission. If this parameter is not specified or is null, then the server will not generate continuation cover pages. The specified pathname must be relative to the top of the fax server's spooling area.
      CountryCode(S2
      The local country code in which the facsimile modem resides. As for AreaCode , this value is passed to the dial string rules for use in formulating canonical phone numbers for dialing (among other things.)
      DestControls(S1
      An optional file containing rules for controlling parameters on a per-destination basis; see destctrls(5) The following parameters may be controlled with this mechanism: MaxConcurrentCalls , MaxDials , MaxSendPages , MaxTries , RejectNotice , SessionTracing , and TimeOfDay . If no DestControls parameter is specified, or if the controls file does not specify default values for these parameters, then any settings in the config file used by faxq(8) are used for default settings. Note that faxq automatically rereads the contents of a DestControls file if it is modified while the server is running.
      DeviceMode
      The file protection mode that the server should set for the modem device file. Note that this value is given in octal. The default value of 0600 implies that only the facsimile user (usually uucp ) can access the modem. See also chmod(2) .
      DialStringRules(S2
      The pathname of the file that holds the rules for processing user-specified dial strings; c.f. dialrules(5) . The specified pathname must be relative to the top of the fax server's spooling area; e.g. etc/dialrules .
      DistinctiveRings
      Modern distinctive ring support on most modems indicates the ring cadence rather than the older style of ``RING1'', ``RING2'', etc.  To indicate the ring cadence, DRingOn and DRingOff values are presented by the modem to the faxgetty process.  The modem indicates the entire cadence between ``RING'' indications Like this:
      
      
        RING
        DROF=40
        DRON=8
        DROF=4
        DRON=8
        RING
      
      
      The corresponding DistinctiveRings parameter for this ring cadence would be:
      
      
        DistinctiveRings:  F-8-4-8
      
      
      where ``F'' tells the faxgetty process that the ring cadence is for a facsimile (``V'' for voice and ``D'' for data), and the other values describe the ring cadence with leading and ending DRingOff values ignored.  Multiple ring cadences are indicated by delimiting them with commas in this fashion:
      
      
        DistinctiveRings:  V-20,F-8-4-8,D-4-2-4-8
      
      
      DRingOff
      A string that identifies the ``off'' value in any distinctive ring cadence, for example ``DROF=''. See also DRingOn and DistinctiveRings .
      DRingOn
      A string that identifies the ``on'' value in any distinctive ring cadence, for example ``DRON=''. See also DRingOff and DistinctiveRings .
      DynamicConfig
      The pathname of the optional shell script, e.g. ``etc/localid'', that makes dynamic configuration changes, i.e., to LocalIdentifier, based on CIDName, CIDNumber, and device ID.  The script is passed those three values as the first, second, and third parameters ($1, $2, $3), respectively when answering an incoming call.  The script can then perform local processing as desired to send on standard output the configuration items to change in a ``parameter:value'' format, i.e. ``LocalIdentifier: +1.800.555.1212''.  If there are multiple parameters to be changed, then each item must be on its own line. This is commonly used to dynamically alter the local identification of systems which use DID/DNIS, but it can also be used to allow different modem configurations for different senders. Note that this script must be marked as executable by the faxgetty process.
      FAXNumber
      The phone number associated with the facsimile modem. This string is used to generate the Transmitter Subscriber Identification (c TSIc ) and Caller Subscriber Identification (c CSIc ) information passed to remote machines--unless the LocalIdentifier parameter is explicitly set. The FAXNumber is also used to name the session log file where information for incoming phone calls is recorded; see hylafax-log (5). If this phone number is not a fully qualified number the values of AreaCode and CountryCode are used to generate the transmitted CSI and TSI.
      InternationalPrefix(S2
      The string to use to place an international phone call. In the United States, this is ``011''. This string is passed to the dial string rules.
      JobReqBusy
      The delay in seconds to wait before retrying a job whose dialing attempt failed with a ``BUSY'' status result.
      JobReqDataConn
      The delay in seconds to wait before retrying a facsimile job whose dialing attempt failed because a data modem answered the phone.
      JobReqNoAnswer
      The delay in seconds to wait before retrying a job whose dialing attempt failed with a ``NO ANSWER'' status result.
      JobReqNoCarrier
      The delay in seconds to wait before retrying a job whose dialing attempt failed with a ``NO CARRIER'' status result.
      JobReqNoFCon
      The delay in seconds to wait before retrying a facsimile job whose dialing attempt failed because the initial facsimile protocol handshake failed (i.e. no ``+FCON:'' result was received from a Class 2/2.0 modem).
      JobReqOther(S2
      The delay in seconds to wait before retrying a job that failed for a reason not already covered by one of the Job* parameters.
      JobReqProto
      The delay in seconds to wait before retrying a facsimile job that failed because of a fax protocol error.
      GettyArgs
      A string that indicates whether or not the server should invoke the getty(8) program in response to an incoming call from a data modem. If the string value is not null, then it is interpreted as a set of arguments to pass to the getty program. Before supplying the arguments, the string is first scanned for ``%''-escape sequences: any appearance of ``%l'' is replaced with the tty name and any appearance of ``%s'' is replaced with the serial port speed (in decimal). The ``%'' character can be specified with ``%%''. If the GettyArgs parameter is not specified in the configuration file or if the string value is null, then data connections will be rejected. Note that in addition to the specified command line arguments, the getty program is invoked with its standard input, output, and error descriptors directed to the controlling tty device.
      LocalIdentifier
      The local station identification string to use when transmitting TSI and CSI strings (see FAXNumber above). NB: while this string may contain any printable ASCII characters; beware that "CCITT T.30" specifies a restricted character set and some fax modems and machines may reject or not display  non-conforming strings. If the local identifier is not specified, a canonical form of the FAXNumber is used instead.
      LockDataCalls
      Hold the UUCP lockfile during the time an inbound data call is processed by the external getty program. If this is disabled then the lockfile will be removed just before the getty program is invoked. Note however that doing this introduces a race condition whereby an outbound program may sneak in and take control of the modem after the inbound call has been accepted, but before the getty program has started up and installed it's own lockfile.
      LockVoiceCalls
      Hold the UUCP lockfile during the time an inbound data call is processed by the external voice getty program. If this is disabled then the lockfile will be removed just before the voice getty program is invoked. Note however that doing this introduces a race condition whereby an outbound program may sneak in and take control of the modem after the inbound call has been accepted, but before the voice getty program has started up and installed it's own lockfile.
      LogFacility(S2
      The symbolic name for the syslog(3) facility to use when logging error messages and informational/debugging messages requested through the ServerTracing parameter. The list of facility names is standardized; it can be found in the system include file <syslog.h> ; comparisons are case-insensitive.
      LogCalls
      Log all incoming calls into xferfaxlog as CALL records.  This allows a quick check of all incoming calls, regardless of fax completion or not in a unified manner with other fax logs.
      LogFileMode
      The file protection mode that should be used when creating files to hold session logs. Note that this value is given in octal. The default value of 0600 implies that the log files are not generally accessible, which is important if sensitive information such as calling card access codes are logged. If log files are to be publicly accessible, this value may be set, for example, to 0644. See also chmod(2) .
      LongDistancePrefix(S2
      The string to use to place a long distance phone call. In the United States, this is ``1''.
      MaxConcurrentCalls(S1
      The default value to use for the maximum number of jobs for the same destination that are processed concurrently. Note that each job is processed with a separate phone call; job batching is not currently supported. Thus this parameter defines the maximum number of concurrent phone calls to the same destination. Unless all of your fax destinations have multiple fax lines using the same fax number per destination then MaxConcurrentCalls is probably best left as the default of 1 and exceptions should be accomodated by the DestControls file.
      MaxConsecutiveBadLines
      The maximum number of consecutive erroneous rows of image data that the server will receive before it deems a page to have unacceptable copy quality. Setting this parameter to zero causes the server to not check the quality of received facsimile. Facsimile received with error-correction do not have copy quality checking performed. See also PercentGoodLines .
      MaxDials(S1
      The default value for the maximum number of times the server will place a call for an outbound job. This value may be overridden by rules in the DestControls file. See also MaxTries .
      MaxRecvPages
      The maximum number of pages the server will accept in a received facsimile before it aborts the session.
      MaxSendPages(S1
      The default value for the maximum number of pages the server will permit in a transmitted facsimile. Outbound jobs that exceed this limit are rejected. This value may be overridden by rules in the DestControls file.
      MaxSetupAttempts
      The maximum number of times a (Fx server program will attempt to initialize a modem before considering it ``wedged''.
      MaxTries(S1
      The default value for the maximum number of times the server will attempt to communicate with a remote site. Note that for a call to be counted against this limit, carrier must be established; this is in contrast to the value of MaxDials which limits the number of calls that will be placed on behalf of a job. This value may be overridden by rules in the DestControls file. See also MaxDials .
      ModemGroup(S1
      Define a logical name for a set of modem devices. This parameter can be used to define a name that clients can use to refer to a collection of modems. The syntax is ``<name>:<regex>'' where <name> is the name for the group and <regex> is a regular expression that faxq(8) matches against known modems. Thus for example, the default modem to use for a job, any , is defined as ``any:.*''. This parameter may be specified multiple times to define multiple modem classes. Modem classes may overlap. The actual set of modems in a modem class that are considered for use may vary based on which modems are believed to be ready for use.
      ModemPriority
      The scheduling priority to use for a modem. Priority values are in the range 0 to 255 with lesser values signifying higher (more desirable) priority. The (Fx scheduler process assigns the highest priority modem that is ready for use when scheduling an outbound job.
      If multiple available modems in a job's selected ModemGroup have the same ModemPriority value, then the (Fx scheduler assigns jobs to them in a round-robin fashion.
      NoAnswerVoice
      Whether or not to disable the answering of calls indicated as voice (e.g. by DistinctiveRings ).
      NoCarrierRetrys
      The number of times to redial a phone number after receiving a ``NO CARRIER'' result code when the number has not been successfully dialed before. In normal operation the fax server will treat this result code to mean that a facsimile modem/machine did not answer the phone and reject the transmit job. This is done to avoid repeatedly dialing wrong phone numbers and depends on the modem distinguishing between no carrier and no answer. However, some modems are not capable of reliably distinguishing between no carrier and no answer, or when instructed to do so do not identify a busy signal correctly. For these modems one may find it necessary to increase the value of this parameter to compensate. It is strongly recommended, however, that this value not be set to a large number.
      ModemReadyState
      Define the state transmitted to the (Fx scheduler process each time a modem is made ready by a faxgetty process. State is one of: ``R'' (ready for use), ``B'' (busy), or ``D'' (down). The modem state can be used to control whether or not modems are assigned to outbound jobs. A modem's state is initially set to ``R'' (ready). Modem state can be dynamically changed with the faxstate(8) program or by setting this configuration parameter with the faxconfig(8) program.
      ModemRingResponse
      This can be used to cause the command defined by ModemRingResponse to be sent to the modem after hearing at least ModemRingsBeforeResponse RINGs in order to receive DID-DTMF data, for example.
      ModemRingsBeforeResponse
      This defines the minimum number of RINGs that must be heard before ModemRingResponse is first sent to the modem.
      NotifyCmd(S2
      The command to invoke to notify a client of a job status change; see notify(8) .
      PageChop(S1
      Whether or not to automatically truncate trailing whitespace on pages of outbound facsimile (when possible). If page chopping is enabled, then pages with at least PageChopThreshold trailing whitespace on a page will be transmitted as a ``short page'' if the receiver is capable of accepting variable-length pages. The possible values are: ``last'' to enable chopping of the last page of each document, ``all'' to enable chopping of all pages, or ``none'' to disable page chopping.
      PageChopThreshold(S1
      The minimum amount of trailing whitespace that must be present on a page before page chopping will be attempted; see PageChop . Note that this value is specified in inches.
      PCL2FaxCmd(S1
      The command to invoke to convert a HP-PCL document submitted for transmission to TIFF/F, suitable for transmission (for future use).
      PercentGoodLines
      The minimum percentage of good rows of image data required for a received facsimile page to be deemed to have acceptable copy quality. Setting this parameter to zero causes the server to not check the quality of received facsimile. Facsimile received with error-correction do not have copy quality checking performed. See also MaxConsecutiveBadLines .
      PollLockWait
      When polling for the presence/removal of a UUCP lockfile, the time (in seconds) to wait between checks. Lockfile polling occurs to ensure the fax server doesn't collide with another process using the modem.
      PollModemWait
      The time (in seconds) to wait between checks for a modem to become ready for use. Modem polling occurs when a modem fails to reset cleanly.
      PriorityScheduling
      Indicates whether the (Fx scheduler should utilize available priority job scheduling mechanisms to enhance realtime execution, particularly with Class 1 configurations on older or slower systems.
      Currently PriorityScheduling is available for IRIX, SVR/4, HP-UX, and POSIX-compliant (i.e. Linux) operating systems.  The default value varies to maintain traditional (Fx behavior.  On IRIX, SVR/4, and HP-UX systems where the configure script detects one of the functions schedctl(), priocntl() or rtprio() the default is true. The only other supported priority mechanism is POSIX sched_setscheduler(), which is used on Linux, OpenServer and possibly other systems.  On such systems, as well as on systems where no priority scheduling mechanism exists, the default is false."
      PS2FaxCmd(S1
      The command to invoke to convert a (Ps document submitted for transmission to TIFF/F, suitable for transmission; see ps2fax(8) .
      QualifyCID
      A string that specifies whether or not Caller-ID information and/or DNIS information should be checked against an access control list before accepting an inbound call. If QualifyCID is non-null and there is Caller-ID or DNIS service, then only calls with data matching numbers identified in the file specified by this string (typically etc/cid) will be accepted; see cid(5) . If QualifyCID is not specified in the configuration file, or the value is null, then all incoming calls will be answered. Note that Caller-ID screening and DNIS routing are only available when this service is enabled on the phone line and the modem is capable of presenting Caller-ID status or DNIS data information to the host. The CIDNumber and CIDName parameters must also be setup to reflect the manner in which the modem returns Caller-ID status or DNIS data information to the host.
      QualifyPWD
      A string that specifies whether or not the identity of calling facsimile machines should be checked against an access control list before receiving facsimile. If QualifyPWD is non-null, then only messages from facsimile machines identified in the file specified by the string (typically etc/passwd) will be accepted; similar to QualifyTSI.
      QualifyTSI
      A string that specifies whether or not the identity of calling facsimile machines should be checked against an access control list before receiving facsimile. If QualifyTSI is non-null, then only messages from facsimile machines identified in the file specified by the string (typically etc/tsi) will be accepted; see tsi(5) . If QualifyTSI is not specified in the configuration file, or the value is null, then all incoming facsimile messages will be accepted.
      RecvDataFormat
      The data format (compression scheme) to write received facsimile data when copy quality checking is performed on the host. (When copy quality checking is not done by the server, for example when error correction protocol is used, the received facsimile data is written exactly as it is received from the modem.) The format may be one: ``1-D MH'', ``2-D MR'', ``2-D MMR'', or ``adaptive''. An ``adaptive'' format causes the received data to be written using the data format negotiated by the sender and receiver. Note that while 2-D MMR is the most space-efficient data format the resultant file may not be viewable (certain commonly used programs do not properly read multi-strip TIFF with 2-D MMR data).
      RecvFileMode
      The file protection mode that should be used when creating files to hold incoming facsimile. Note that this value is given in octal. The default value of 0600 implies that only the facsimile user can read received facsimile. If incoming facsimile are to be publicly accessible, this value may be set, for example, to 0644. See also chmod(2) .
      RingData
      A modem status string that identifies that an incoming call is for data use. This string should be set when a phone line has been setup with distinctive ring service. See also RingFax and RingVoice .
      RingExtended
      An identifier which matches the initial portion of an extended RING message sent by the modem to relay CID and/or DNIS data instead of sending it formatted on separate lines.
      RingFax
      A modem status string that identifies that an incoming call is for facsimile use. This string should be set when a phone line has been setup with distinctive ring service. See also RingData and RingVoice .
      RingsBeforeAnswer
      The number of rings to wait before answering the phone. If this value is set to 0, then the phone will only be answered in response to an explicit answer command; see faxanswer(8) .
      RingTimeout
      If a ring is heard and the call is not answered, the time in ms to wait before reinitializing the modem for the next call.
      RingVoice
      A modem status string that identifies that an incoming call is for voice use. This string should be set when a phone line has been setup with distinctive ring service. See also RingData and RingFax .
      RTNHandlingMethod
      Specifies how to react to RTN signal, received from the remote; one of ``Retransmit'', ``Giveup'' and ``Ignore''. ``Retransmit'' assumes that the page is not sent succesfully if RTN signal has been received. HylaFAX will make up to 2 additional attempts to send the page, decreasing signalling rate and retraining. If RTN is still there, it will place up to 2 additional calls. So if the remote always respond with RTN, the page will be send 9 times. Although this algorithm comply with T.30 specs and was originally implemented by Sam Leffler as the only possible choice, real fax machines behave completely different. There is a non-written rule among fax developers, that RTN means ``over and out'' -- hang up immediately and never try to send the same page to the same destination again. That is because RTN usually indicates problems with flow control, incorrectly encoded T.4 data, incompatibility between local and remote equipment etc., but very rarely is caused by the real noise on the line. This ``over and out'' behaviour can be activated by ``Giveup'' value. There is also third option, not so radical as ``Giveup''. Yes, we will never retransmit the page, but we can try to send the next page, and let the remote to decide what to do (accept our decision or hang up). Thus one page will (or will not) be missed but we have a chance to successfully send all other pages. This behaviour can be activated by ``Ignore'' value.
      SaveUnconfirmedPages
      Whether or not to save a received facsimile image page if the sender disconnects without sending the post-page message, without hearing our message confirmation, without retraining as requested, or otherwise breaks fax protocol following such pages for which the sender should not have a ``receipt confirmation''.
      SendFaxCmd(S1
      The command to use to process outbound facsimile jobs; see faxsend(8) .
      SendPageCmd(S1
      The command to use to process outbound pager jobs; see pagesend(8) .
      SendUUCPCmd(S1
      The command to use to process outbound UUCP jobs. This parameter is not currently used, it is for future development.
      ServerTracing(S2
      A number that controls the generation of tracing information by a server when not actively sending or receiving facsimile. Tracing is divided into areas that are individually controlled. To enable tracing of multiple areas of operation, the flag associated with each area should be bit-or'd to form the value for this tag.

      
      Flag	Area	Description
      1 (0x00001)	Server Operation	queue management and general operation
      2 (0x00002)	FAX/IXO Protocol	T.30 facsimile protocol or IXO/TAP protocol
      4 (0x00004)	Modem Operations	modem hardware manipulation
      8 (0x00008)	Modem Communications	comands passed between host and modem
      16 (0x00010)	Timeouts	timer operations
      32 (0x00020)	Modem Capabilities	modem capabilities
      64 (0x00040)	HDLC Frames	binary T.30 HDLC frames
      128 (0x00080)	Binary Modem I/O	binary communication between host and modem
      256 (0x00100)	Server State Transitions	server program state transitions
      512 (0x00200)	Queue Management	job queue management
      1024 (0x00400)	Copy Quality	copy quality checking of received facsimile
      2048 (0x00800)	Job Management	low-level job management
      4096 (0x01000)	IXO Protocol	low-level IXO protocol
      8192 (0x02000)	Config File Parsing	unknown configuration file parameters
      16384 (0x04000)	FIFO Messages	inter-application messages
      32768 (0x08000)	Modem State Transitions	modem state changes (down, busy, ready)
      65536 (0x10000)	Dial Rules	dialstring rules parsing and execution
      131072 (0x20000)	Docq Changes	document reference handling
       .5
      
      For example, to enable tracing of server operations and protocol operations, a value of 1+2=3 should be specified. NB: tracing timeouts and/or binary modem I/O can adversely affect the operation of the fax server; enabling these areas should be done with extreme care. Server tracing is directed to syslog(3) using the facility specified with the LogFacility configuration parameter. Note that syslogd(8) must be configured to capture facility.info , facility.debug , facility.warning , and facility.err messages. See hylafax-log (5) for a description of the logged messages.
      SessionTracing(S2
      A number that controls the generation of tracing information by a server while sending or receiving facsimile. The number is interpreted identically to ServerTracing. Note that session tracing is placed in log files in the log subdirectory; see hylafax-log (5) for more information.
      SpeakerVolume
      The volume level that the in-modem speaker should be adjusted to while in command mode. The possible values are:

      
      Value	Description
      Off	silent
      Quiet	almost inaudible
      Low	tolerable in privacy
      Medium	loud enough to hear in the next room
      High	intolerable
       .5
      
      Note that the speaker is always turned off once carrier is established. Also beware that some modems support fewer volume settings; see ModemSetVolumeCmd .
      TagLineFont
      The filename of the font to use in imaging "tag lines" across the top of each transmitted page. Fonts must be stored in the Portable Compiled Font (c PCFc ) format used by the X11 Window System. Filenames are specified relative to the root of the spooling area; e.g. etc/lutRS18.pcf. If no font is specified, if a null filename is specified, or if the specified font file is not readable, then tag lines will not be generated. See also TagLineFormat .
      TagLineFormat
      The format string to use when imaging "tag lines" across the top of each transmitted page. This string may include escape codes that cause various items to be interpolated into the imaged tag line. Any escape code supported by strftime (3C) may be used as well as the following server-implemented codes:

      
      Escape	Description
      %%d	destination phone number
      %%i	job identifier
      %%j	user-specified job tag
      %%l	LocalIdentifier or canonicalized FAXNumber
      %%m	sender's electronic mail address
      %%n	canonicalized FAXNumber
      %%p	current page number of session
      %%P	current page number of job
      %%r	receiver's name
      %%s	sender's name
      %%t	total pages in session
      %%T	total pages in job
      %%%	``%''
      


      In addition, the format string may indicate that text is to be centered in multiple equal-sized fields by separating text with ``|'' characters. For example, ``a|b|c'' would cause the tag line to be broken up into three equal-sized areas with the strings ``a'', ``b'', and ``c'' centered within each region. The default tag line format string is ``From %%n|%c|Page %%P of %%T''. The differences between the %%p or %%P and the %%t or %%T options are noticed when a fax job is retried after an incomplete attempt and only the previously unsent pages are then queued in a successive session. See also TagLineFont .
      TIFF2FaxCmd(S1
      The command to invoke to convert a TIFF submitted for transmission to TIFF/F, suitable for transmission; see tiff2fax(8) .
      TimeOfDay(S1
      The default time-of-day restrictions to apply to outbound jobs. Outbound jobs will be processed only during the specified time. Any jobs submitted outside this time period will be held until the start of this time. The syntax for time-of-day restrictions is designed to be compatible with the syntax used by the UUCP software. The following BNF describes the syntax:

      
      
         Syntax = tod ["," tod]       tod = <days><timerange>      days = "Any" | "Wk" | <dayname>+ | nothing   dayname = "Sun" | "Mon" | "Tue" | "Wed" | "Thu" | "Fri" | "Sat" timerange = <start> "-" <end> | nothing     start = <24hrtime>       end = <24hrtime> 24hrtime = {0-9}{0-9}{0-9}{0-9}   nothing =

      where start and end are 24-hour times, day names can be either 2- or 3-characters, and a null day or time specification means any time or day. White space and other syntactic sugar may be freely inserted between tokens but may not be inserted between 24-hour times in the time range. This value may be overridden by rules in the DestControls file.
      Use2D(S1
      Control the use of 2D-encoded data for transmitted facsimile.
      UUCPLockMode(S2
      The file protection mode that should be used when creating UUCP lockfiles. Note that this value is given in octal.
      UUCPLockDir(S2
      The pathname of the directory in which UUCP lockfiles are to be created.
      UUCPLockTimeout(S2
      The time in seconds to wait before removing a stale UUCP lockfile (i.e. a lockfile whose owner does not appear to exist). If this value is set to 0, then the fax server will never remove a stale lockfile.
      UUCPLockType(S2
      A string that specifies the type of UUCP lockfile to create. The string may be one of ``ascii'' or ``binary'' depending on whether the process-ID of the lock owner is written to the file as an ascii string or as a binary value, respectively. In addition, two prefixes may be used to control the format of the lock filename. If the type string is prefixed with a ``+'', then SVR4-c style filenames are generated using the major device number of the tty device and the major and minor device numbers for the filesystem on which the tty device resides. If the type string is prefixed with a ``-'', then any upper case letters in the device part of the lockfile name are converted to lower case letters; for example, ``LCK..ttyA01'' is converted to ``LCK..ttya01''. This upper-to-lower case conversion is useful for systems such as SCO where the convention is to name devices with upper-case letters, but create lockfiles with lower-case letters.
      VGettyArgs
      A string that indicates whether or not the server should invoke a voice getty program in response to an incoming voice call. If the string value is not null, then it is interpreted as a set of arguments to pass to the vgetty program. Before supplying the arguments, the string is first scanned for ``%''-escape sequences: any appearance of ``%l'' is replaced with the tty name and any appearance of ``%s'' is replaced with the serial port speed (in decimal). The ``%'' character can be specified with ``%%''. If the VGettyArgs parameter is not specified in the configuration file or if the string value is null, then voice connections will be rejected. Note that in addition to the specified command line arguments, the vgetty program is invoked with its standard input, output, and error descriptors directed to the controlling tty device.
      WedgedCmd(S1
      The command to invoke when a modem is deemed ``wedged''; see wedged(8) .
  • MODEM-ORIENTED CONFIGURATION PARAMETERS


      This section lists configuration parameters that are specific to the setup and operation of the modem. All commands must be specified exactly as they are to be transmitted to the modem (note that this is a departure from previous versions of this software that automatically prepended ``AT'' to each line of commands sent to the modem). When multi-line commands are required, enclose the commands in quote marks (``"'') and insert a newline character ``\n'' where lines should be broken. An example of a multi-line command string is ``AT+FCQ=1\nAT+FBADMUL=20\nAT+FBADLIN=10''.

      Command strings sent to the modem may include command escapes that force the host to alter the DTE-DCE communication rate, the flow control scheme used between the host and modem, delay for a period of time, flush input data, and wait for a specific response from the modem. The following escape codes are interpreted:

      
      Escape Effect
      <none> enable no flow control between DTE and DCE
      <xon> enable software flow control between
      DTE and DCE
      <rts> enable hardware flow control between
      DTE and DCE
      <2400> set the
      DCE-DTE baud rate to 2400 bps
      <4800> set the
      DCE-DTE baud rate to 4800 bps
      <9600> set the
      DCE-DTE baud rate to 9600 bps
      <19200> set the
      DCE-DTE baud rate to 19200 bps
      <38400> set the
      DCE-DTE baud rate to 38400 bps
      <57600> set the
      DCE-DTE baud rate to 57600 bps
      <76800> set the
      DCE-DTE baud rate to 76800 bps
      <115200> set the
      DCE-DTE baud rate to 115200 bps
      <delay:N> delay N x 10 ms on the host (0 <= N <= 255)
      <flush> flush any pending input data from the modem
      <waitfor:R> wait for the response R from the modem (see below)


      Note that commands to the left of an escape code are
      sent to the modem before the associated actions are
      carried out on the host.
      This may be important when changing baud rates, as the result code
      from a command may be returned at the new baud rate.
      Also, beware that not all baud rates are supported by all
      systems and modems; the set of baud rates supported by a host is
      usually listed in
      stty(1) .



      The ``<waitfor:..>'' escape can be used to override the default
      behaviour which is to wait for an ``OK'' response to a
      command sent to the modem.
      The possible response codes are:


      
      NOTHING a null response
      OK the default response
      CONNECT ``CONNECT...''
      NOANSWER ``NO ANSWER...''
      NOCARRIER ``NO CARRIER...''
      NODIALTONE ``NO DIALTONE...''
      BUSY ``BUSY''
      OFFHOOK ``PHONE OFF-HOOK''
      RING ``RING...''
      ERROR error status from modem
      OTHER any unrecognized modem response


      For example ``ATO\r<waitfor:CONNECT>'' would send
      ``
      ATO\r'' to the modem and then wait for a response
      with a leading ``
      CONNECT'' in it; and
      ``
      ATS99=2\r<delay:2><flush><waitfor:NOTHING>'' would send
      ``
      ATS99=2\r'' to the modem, delay 20 ms, flush any
      input from the modem, and then continue (not wait for any response).
      ModemAnswerCmd
      The command to answer the phone.
      If possible, this command should generate a result string that
      identifies whether the incoming call is from a facsimile, voice,
      or data modem.
      Typically this auto-detection is configured ahead of time; e.g.
      for Class 2 modems with the ``AT+FAA=1'' command.
      The following table describes how the result codes are interpreted by
      the facsimile server.
      
       .5
      Result String Default Class 1 Class 2 Class2.0
      CONNECT FAX Fax - - - -
      CONNECT Data Unknown - -
      NO ANSWER No Answer - - -
      NO CARRIER No Carrier - - -
      NO DIALTONE No Dialtone - - -
      ERROR Error - - -
      FAX Fax - - -
      DATA Data - - -
      +FCON - - Fax Fax
      +FCO - - Fax Fax
      +FDM - - Data Data
      +FHNG: - - Error Error
      VCON - - Voice Voice


      The ``Default'' column indicates the interpretation made for the
      result string in either class 1 or 2 unless explicitly
      overridden.
      The ``Class 1'' column indicates result strings handled specially
      for modems operating in class 1, the
      ``Class 2'' column indicates special handling for modems
      operating in class 2, and the ``Class 2.0'' column indicates
      special handling for modems operating in class 2.0.
      Unknown
      entries imply that interpretation is based on the way in which the
      call was answered; if answering is done for an explicit call type,
      that type is assumed, otherwise a Fax call is presumed.
      ModemAnswerDataBeginCmd
      The command to send to the modem once a data
      connection has been established.
      ModemAnswerDataCmd
      The command to explicitly answer the phone for a data connection.
      This command must generate a result string that
      identifies the incoming call is from a data modem.
      If this parameter is not specified or is null, then the value of
      ModemAnswerCmd is used instead.
      See also
      AdaptiveAnswer and
      AnswerRotary .
      ModemAnswerDialCmd
      The command to explicitly answer the phone for a dialed connection.
      This command must generate a result string that
      identifies the incoming call is from a facsimile modem.
      If this parameter is not specified or is null, then the value of
      ModemAnswerCmd is used instead.
      ModemAnswerFaxBeginCmd
      The command to send to the modem once a facsimile
      connection has been established.
      ModemAnswerFaxCmd
      The command to explicitly answer the phone for a facsimile connection.
      This command must generate a result string that
      identifies the incoming call is from a facsimile modem.
      If this parameter is not specified or is null, then the value of
      ModemAnswerCmd is used instead.
      See also
      AdaptiveAnswer and
      AnswerRotary .
      ModemAnswerVoiceBeginCmd
      The command to send to the modem once a voice
      connection has been established.
      ModemAnswerVoiceCmd
      The command to explicitly answer the phone for a voice connection.
      This command must generate a result string that
      identifies the incoming call is for voice.
      If this parameter is not specified or is null, then the value of
      ModemAnswerCmd is used instead.
      See also
      AdaptiveAnswer and
      AnswerRotary .
      ModemAnswerResponseTimeout
      The maximum time, in milliseconds, to wait for a response from
      the modem after sending
      ModemAnswerCmd .
      Note that you may want to shorten this value when using the
      server-based adaptive answer strategy; see
      AdaptiveAnswer .
      ModemATCmdDelay
      A delay, in milliseconds, that should be performed before each
      ``AT'' command string is sent to the modem.
      ModemBaudRateDelay
      The amount of time, in milliseconds, to pause after setting the
      baud rate on the serial line.
      This is only needed for hosts and modems (such as USRs) where
      setting the serial line parameters does not take effect immediately.
      ModemCommaPauseTimeCmd
      The command to set the time,
      in seconds, that the modem should pause when encountering
      a ``,'' modifier in the dialing string.
      ModemDialCmd
      The command to place a phone call.
      The string is assumed to be suitable for use
      as a parameter to the
      sprintf (3S)
      function; so the ``%'' character should be escaped as ``%%''.
      The dial command must include a single ``%s'' where the number
      that is to be dialed is to be substituted.
      Facilities such as tone or pulse dialing, outgoing prefixes
      to route though a PBX,
      and so on should be included in the
      dialing command string.
      It is also important that, if possible, a trailing ``@''
      symbol should be included so that the modem
      returns result codes that distinguish between no answer and no carrier.
      Use of the ``@'' permits the server to reduce the probability
      that a wrong number is continually redialed.
      If the modem does not support this facility, then it may be
      necessary to raise the number of retries done when a
      ``
      NO CARRIER'' result is returned.
      ModemDialResponseTimeout
      The maximum time to wait, in milliseconds, for a response from
      the modem after sending
      This value should be longer than the timeout programmed into the
      modem through the
      ModemWaitTimeCmd parameter.
      This additional server-based timeout is provided to guard against
      modems that can ``lock up'' when dialing the telephone.
      ModemDTRDropDelay
      The time, in milliseconds, to pause between placing
      DTR
      OFF and
      DTR
      ON while resetting a modem.  This value should be at
      least equal to the time-value of the analogous S-register,
      usually S25.
      ModemEchoOffCmd
      The command to disable echoing of commands sent to the modem.
      ModemFlowControl
      The type of flow control to use between
      DTE
      and DCE;
      one of ``
      NONE'', ``XONXOFF'' and ``RTSCTS''.
      This value is used to select the string sent to the modem
      to initially establish
      DTE-DCE
      flow control; one of
      ModemNoFlowCmd ,
      ModemSoftFlowCmd ,
      and
      ModemHardFlowCmd .
      The current flow control setting is also used to select the
      appropriate flow control command to send to the modem when
      the software switches to Class 1, 2, or 2.0; see
      Class1HFLOCmd ,
      Class1NFLOCmd ,
      Class1SFLOCmd ,
      Class2HFLOCmd ,
      Class2NFLOCmd ,
      and
      Class2SFLOCmd .
      The server supports both software and hardware flow control
      for Class 1, Class 2, and Class 2.0 modems.
      Whether to use hardware or software flow control depends
      on the capabilities of the modem
      and the host hardware and operating system.
      Communication rates above 9600 baud often require that hardware
      flow control be used for reliable
      DTE-DCE
      communication.
      However, beware that many modems only support software
      flow control when sending or receiving facsimile.
      Note that modems usually support software flow control even
      if they have no explicit AT-command to activate it; in this case
      it is switched on when the modem enters fax mode, having
      AT+FCLASS=... from DTE.
      ModemFrameFillOrder
      The bit order to expect for received
      HDLC
      frames and to use when formulating
      HDLC
      frames to send.
      This value may be either
      LSB2MSB
      when bits are ordered from least-significant-bit to
      most-significant-bit (as in the
      CCITT
      specification) or
      MSB2LSB
      when bits are ordered in the reverse direction.
      ModemHardFlowCmd
      The command to setup hardware (RTS/CTS)
      flow control between
      DTE
      and
      DCE.
      ModemMinSpeed
      The minimum acceptable signalling rate for transmitting facsimile
      page data.
      Possible values are: 2400, 4800, 7200, 9600, 12200, and 14400.
      ModemMfrQueryCmd
      The command to send to the modem to get the manufacturer
      identification string.
      If this parameter is not set, then it is initialized
      to ``AT+FMFR?'' for Class 2 modems, or
      to ``
      AT+FMI?'' for Class 2.0 modems, or
      to ``
      ATI3'' for Class 1 modems.
      If the parameter begins with a ``!'', then the remainder of the
      string is taken to be the identification string and no command
      is issued to the modem.
      ModemModelQueryCmd
      The command to send to the modem to get the model identification string.
      If this parameter is not set, then it is initialized to
      to ``AT+FMDL?'' for Class 2 modems, or
      to ``
      AT+FMM?'' for Class 2.0 modems, or
      to ``
      ATI0'' for Class 1 modems.
      If the parameter begins with a ``!'', then the remainder of the
      string is taken to be the identification string and no command
      is issued to the modem.
      ModemNoAutoAnswerCmd
      The command to stop the modem from automatically
      answering when the phone rings.
      ModemNoFlowCmd
      The command to disable flow control between
      DTE
      and
      DCE.
      ModemOnHookCmd
      The command to place the phone ``on hook''
      (i.e. hangup).
      ModemPageDoneTimeout
      The maximum time to wait, in milliseconds, for a response
      from the modem after sending a page of facsimile data (e.g.
      the time to wait for a response to a Class 2/2.0
      AT+FET
      command).
      ModemPageStartTimeout
      The maximum time to wait, in milliseconds, for an initial
      response from the modem when sending a page of facsimile data
      (e.g. the time to wait for a response to a Class 2/2.0
      AT+FDR
      command).
      ModemRate
      The baud rate to use for DCE-DTE communication.
      This value may be one of: 115200, 76800, 57600, 38400, 19200, 9600, 4800,
      2400, 1200.
      The default value is 19200 because many modems lock the
      rate at 19200 when sending or receiving facsimile.
      Note that not all values are supported by all operating
      systems and modems; consult
      stty(1)
      for the available rates on your system.
      ModemReadyCmds
      A string of commands to issue to the modem during reception initialization.
      This string is sent to the modem
      after
      the standard set of configuration commands required by the fax server.  This
      is done, for example, to un-busy a DID line so that calls can come through.
      ModemRecvFillOrder
      The bit order to expect for received facsimile data.
      This value may be either
      LSB2MSB
      when bits are ordered from least-significant-bit to
      most-significant-bit (as in the
      CCITT
      specification) or
      MSB2LSB
      when bits are ordered in the reverse direction.
      According to the various specifications all modems should return
      data in
      LSB2MSB
      order.
      However most Class 2 modems (except maybe only Multitech) use
      MSB2LSB
      for compatibility with modems that were built with
      Rockwell hardware/firmware that included a bug
      that was too widespread to correct.
      If this parameter is not set, then it is autodetected and set to
      LSB2MSB
      for Class 1 and Class 2.0 modems and
      MSB2LSB
      for non-Multitech Class 2 modems. However this may be wrong for
      your modem, so you will have to specify this parameter explicitly.
      ModemRecvSuccessCmd
      A string of commands to issue to the modem after a successful
      receive session before the call is disconnected.
      ModemResetCmds
      A string of commands to issue to the modem during initialization.
      This string is sent to the modem
      before
      the standard set of configuration commands required by the fax server.
      Note that these commands should not include normal
      reset commands that are specified through other parameters
      .
      For example, commands to setup flow control,
      DCD
      handling,
      DTR
      handling, etc. should be specified through the appropriate
      configuration parameters and not through this parameter.
      In addition the soft reset command (usually ``ATZ'')
      should not be included in this string; the servers issue this
      command explicitly.
      ModemResetDelay
      The time, in milliseconds, to pause after setting
      DTR
      ON, while resetting a modem.
      DTR
      ON does not respond with ``OK'', so this parameter should
      be long enough to allow the modem time to be ready for
      ModemSoftResetCmd successively.
      ModemResultCodesCmd
      The command to enable result codes.
      ModemRevQueryCmd
      The command to send to the modem to get a firmware revision identification
      string.
      If this parameter is not set, then it is initialized to
      ``AT+FREV?'' for Class 2 modems, or
      to ``
      AT+FMR?'' for Class 2.0 modems.
      If the parameter begins with a ``!'', then the remainder of the
      string is taken to be the identification string and no command
      is issued to the modem.
      ModemSendBeginCmd
      The command to send to the modem upon establishing carrier during
      a transmit operation.
      This parameter is useful for systems that are incapable of enabling
      hardware flow control without
      DCD
      asserted.
      ModemSendFillOrder
      The bit order the modem expects for transmitted facsimile data.
      This value may be either
      LSB2MSB
      or
      MSB2LSB
      (see also
      ModemRecvFillOrder above.)
      Virtually all modems expect transmitted facsimile data in
      LSB2MSB
      bit order.
      ModemSetVolumeCmd
      The commands to use to set the modem speaker volume levels.
      There should be five whitespace-separated commands,
      one each for setting the
      volume to ``Off'', ``Quiet'', ``Low'', ``Medium'', and ``High'';
      the default is ``"ATM0 ATL0M1 ATL1M1 ATL2M1 ATL3M1"''.
      See also
      SpeakerVolume .
      ModemSetupAACmd
      The command to setup
      "adaptive answer"
      support in the modem-if available.
      Adaptive answer is the term used for the ability to
      distinguish between calls from facsimile, voice, and
      data sources.
      Note that this string is the last command issued by the device
      drivers during setup, so the command string
      may, if necessary, switch to a different
      operating mode (e.g. on some Rockwell-based modems it is necessary
      to issue the ``AT+FAA=1'' command in Class 0).
      ModemSetupDCDCmd
      The command to setup
      DCD
      handling.
      On most systems the facsimile server will enable
      the CLOCAL flag on the tty device to which
      the modem is connected.
      This should insure that the system does not close an open
      file descriptor associated with the modem if carrier is dropped.
      Thus, for most systems and modems
      ModemSetupDCDCmd
      should setup
      DCD
      to reflect carrier.
      ModemSetupDTRCmd
      The command to setup
      DTR
      handling so that the modem is reset when the
      DTR
      signal is lowered by the host.
      The facsimile server uses this facility to insure that modems
      are not left in a ``locked up'' state.
      ModemSoftFlowCmd
      The command to setup software (XON/XOFF)
      flow control between
      DTE
      and
      DCE.
      ModemSoftResetCmd
      The command to force a soft reset of the modem.
      ModemSoftResetCmdDelay
      The time, in milliseconds, to pause after receiving the OK following
      ModemSoftResetCmd before any further commands are sent to the modem.
      ModemSoftRTFCC
      Whether or not to enable software-driven Real-Time Fax Compression Conversion.
      RTFCC allows HylaFAX to convert the image compression between MH MR and MMR
      formats regardless of how faxq formatted the image file.
      Note that when using RTFCC, the
      compression format of the file will be ignored, thus the ``-1'', ``-2'',
      and ``-3'' options for sendfax, ps2fax, and others will only influence how the
      document is prepared by faxq and will not influence the
      actual negotiated session parameters.
      Class2RTFCC takes precedence over
      ModemSoftRTFCC and if both are enabled, then software-driven RTFCC will not be performed
      in favor of the firmware-driven RTFCC.
      ModemType
      This parameter must be set to one of: ``Class2'', ``Class2.0'',
      or ``Class1'';
      to indicate that the modem is a Class 2-,
      Class 2.0-, or Class 1-style modem, respectively.
      If this parameter is not set, then it is autodetected and
      the highest supported fax class is used.
      ModemVerboseResultsCmd
      The command to enable verbose, as opposed to numeric, result codes.
      ModemWaitForConnect
      If enabled, the facsimile server will not consider a connection
      established when answering an incoming call until a
      ``CONNECT'' status string is received.
      This is useful mainly for Rockwell
      RC32ACL-based
      modems that send ``
      FAX'' and ``DATA'' status
      messages before sending ``
      CONNECT''.
      ModemWaitTimeCmd
      The command to set the
      number of seconds to wait for a carrier signal
      when placing a call or answering the phone.
  • T.30 PROTOCOL CONFIGURATION PARAMETERS



      The following parameters apply to the implementation of the
      "CCITT T.30"
      facsimile protocol in the Class 1 device driver.
      They should not be changed without full understanding of the
      operation of the server.
      FaxT1Timer
      The value of the
      T1
      timer in milliseconds.
      This timer is used to time out the initial session contact;
      i.e. receipt of DIS/DCS.
      FaxT2Timer
      The value of the
      T2
      timer in milliseconds.
      This timer is used to time out receiving responses and commands.
      FaxT4Timer
      The value of the
      T4
      timer in milliseconds.
      This timer is used to time out the reception of
      HDLC
      frames and, usually, trigger frame retransmissions.
  • CLASS 1 MODEM CONFIGURATION PARAMETERS



      The following parameters are specific to the configuration
      of Class 1-style modems; they should not be changed lightly:
      Class1Cmd
      The command to set the modem into Class 1 operation.
      Class1EnableV34Cmd
      The command to enable V.34-fax support with at least the desired
      maximum primary channel rate.
      Class1ECMSupport
      Whether or not to support T.30-A error correction protocol.  Use of
      ECM will require 64 kilobytes of free memory per modem in active use.
      Class1PersistentECM
      Whether or not to continue to retransmit and allow to continue to
      receive image data in ECM protocol
      which is not accepted as valid after four successive attempts.
      Class1ECMFrameSize
      The size in bytes of image frames to transmit during ECM protocol.
      This setting will also indicate a preference in receive sessions.
      The only acceptable values are 64 and 256.  A setting of 64 may
      be useful on high-load systems and possibly environments with
      extremely poor line quality.
      Class1ExtendedRes
      Whether or not to support resolutions other than normal and fine.
      This option has been deprecated by
      Class1Resolutions.
      Class1FrameOverhead
      The number of extraneous bytes in
      HDLC
      frames sent to the host in response to an ``AT+FRH'' command.
      For modems that properly implement the Class 1 interface, this
      number should be 4 (the default).
      Class1HFLOCmd
      The command to setup hardware (RTS/CTS)
      flow control between
      DTE
      and
      DCE
      when operating in Class 1.
      This command is issued immediately after sending the
      Class1Cmd to switch the modem to Class 1 operation.
      Class1NFLOCmd
      The command to setup no flow control between
      DTE
      and
      DCE
      when operating in Class 1.
      This command is issued immediately after sending the
      Class1Cmd to switch the modem to Class 1 operation.
      Class1PPMWaitCmd
      The command used to stop and wait before sending the post page message,
      except before sending EOP, when
      Class1EOPWaitCmd is used instead.  We must ensure that the high-speed carrier has
      stopped completely.
      According to T.30, Chapter 5, Note 4, this delay should be 75 +/- 20 ms.
      Class1ResponseWaitCmd
      The command used to stop and wait after sending TCF, before attempting to
      receive a training response from the remote.  Set this to ``AT+FRS=1'' if
      you experience ``DIS/DTC received 3 times'' errors.
      Class1Resolutions
      A bitmapped (bit-or'd) value indicating the resolutions to be supported during facsimile
      operation.  Individual resolutions follow Table 21/T.32 and are defined as follows:


      
      Bit	Description
      0 (0x00)	R8 x 3.85 l/mm, Normal
      1 (0x01)	R8 x 7.7 l/mm, Fine
      2 (0x02)	R8 x 15.4 l/mm, Superfine
      4 (0x04)	R16 x 15.4 l/mm, Hyperfine
      8 (0x08)	200 dpi x 100 l/inch
      16 (0x10)	200 dpi x 200 l/inch
      32 (0x20)	200 dpi x 400 l/inch
      64 (0x40)	300 dpi x 300 l/inch
       .5
      
      Thus, a value of 3 would indicate support for normal, fine, and superfine resolutions.
      Class1RMQueryCmd
      The command to send to the modem to get the list of supported reception bit-rates. If the parameter begins with a ``!'', then the remainder of the string is taken to be the modem response and no command is issued to the modem.
      Class1TCFWaitCmd
      The command used to stop and wait before sending TCF, similar to Class1PPMWaitCmd. According to T.30, Chapter 5, Note 3, this delay should be 75 +/- 20 ms.
      Class1TMQueryCmd
      The command to send to the modem to get the list of supported transmission bit-rates. If the parameter begins with a ``!'', then the remainder of the string is taken to be the modem response and no command is issued to the modem.
      Class1EOPWaitCmd
      The command used to stop and wait before sending the post page message similar to Class1PPMWaitCmd. We allow a different setting in the case of EOP, however, because empirically some machines may need more time.
      Class1MsgRecvHackCmd
      If receive failures occur due to +FCERROR just prior to image data reception, setting Class1MsgRecvHackCmd to AT+FRS=1 may help.
      Class1RecvAbortOK
      The time, in milliseconds, to wait for an ``OK'' result code from the modem after aborting an HDLC frame receive (``AT+FRH=3''). If this number is zero, then the modem is assumed to not correctly implement aborting and instead the driver will wait 200ms, flush any input, and then send ``AT\n'' and wait 100ms for an ``OK'' result.
      Class1RecvIdentTimer
      The time, in milliseconds, to wait for an initial DCS when receiving a facsimile. CCITT recommendation T.30 specifies this as the value of the T1 timer. However, adaptive answering schemes such as that described above under the AdaptiveAnswer parameter may require that this timer be shortened.
      Class1SendMsgDelay
      The time, in milliseconds, to delay just before sending the image data. According to T.30: 5.3.2.4 this should be no less than 75 ms; however, in practice some receivers are slow to drop their CFR transmission carrier and need more time to start up their reception carrier.
      Class1SwitchingCmd
      The command used to ensure that the sending facsimile device has turned off its modulator (i.e. loss-of-carrier) as recommended by T.31: Appendix II.1.
      Class1SFLOCmd
      The command to setup software (XON/XOFF) flow control between DTE and DCE when operating in Class 1. This command is issued immediately after sending the Class1Cmd to switch the modem to Class 1 operation.
      Class1TCFMaxNonZero
      The maximum percentage of non-zero data bytes permitted in an acceptable received TCF. Note that this number does not include any leading non-zero data in the received data. See also Class1TCFMinRun .
      Class1TCFMinRun
      The duration, in milliseconds, of the minimum run of zero data in an acceptable received TCF. This value should be specified according to a 1.5 second transmission of zero data (i.e. it should be between 0 and 1500). See also Class1TCFMaxNonZero .
      Class1TCFRecvHack
      Deliberately look for the low-speed carrier loss before switching to the high-speed TCF carrier.  Use this if session logs consistently show +FCERROR prior to TCF reception.
      Class1TCFRecvTimeout
      The maximum time to wait, in milliseconds, for the firs