hylafax-info man page on Mandriva

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HYLAFAX-INFO(5F)					      HYLAFAX-INFO(5F)

NAME
       info - remote device capability database

DESCRIPTION
       The  info  subdirectory	in the HylaFAX spooling area holds information
       about the capabilities and status of devices  that  have	 been  called.
       One  file  exists  for  each device, with the filename created from the
       remote device's fully-qualified phone  number.	Files  have  a	simple
       ASCII format.  Each line is of the form
	    [&]tag: value
       where  a	 tag  identifies  a capability and a value is either a string,
       number, or boolean value.  An optional ``&'' at the front of  the  line
       indicates that the tag's value is locked down and should not be updated
       by the server.  This facility is useful for restricting	the  capabili‐
       ties used with a particular machine.

       The following items are recorded:
	      Tag		    Type       Description
	      calledBefore	    boolean    device has previously answered at this number
	      dialFailures	    number     count of consecutive failed dial operations
	      hasV34Trouble	    boolean    there is difficulty sending to this destination with V.34
	      hasV17Trouble	    boolean    there is difficulty sending to this destination with V.17
	      senderHasV17Trouble   boolean    there is difficulty receiving from this caller with V.17
	      senderSkipsV29	    boolean    this caller does not use V.29 in the presence of V.17
	      lastDialFailure	    string     reason for last failed dial operation
	      lastSendFailure	    string     reason for last failed send attempt
	      maxPageWidth	    number     maximum page width in pixels in normal resolution
	      maxPageLength	    number     maximum page length in millimeters
	      maxSignallingRate	    string     maximum signalling rate (bits/sec) to use
	      minScanlineTime	    string     minimum scanline time
	      pagerMaxMsgLength	    number     length of longest allowed text message
	      pagerPassword	    string     password string send to service provider
	      pagerSetupCmds	    string     commands for setting up modem for a specific service provider
	      pagerTTYParity	    string     parity & # bits configuration for IXO/TAP communication
	      pageSource	    string     parameter to tell the paging central who we are
	      pagingProtocol	    string     protocol (IXO or UCP) for this provider
	      remoteCSI		    string     remote device Called Subscriber Identification
	      remoteNSF		    string     remote equipment Non-Standard Facilities information
	      remoteDIS		    string     remote Digital Identification Signal: capabilities
	      sendFailures	    number     count of consecutive failed send attempts
	      supportsBatching	    boolean    accepts batching protocol
	      supportsHighRes	    boolean    accepts 196 line/inch images (obsolete)
	      supportsVRes	    number     vertical resolution support bitmask
	      supports2DEncoding    boolean    accepts Group 3 2D encoding
	      supportsMMR	    boolean    accepts Group 4 encoding
	      supportsPostScript    boolean    accepts Adobe POSTSCRIPT transfer protocol

       The  HylaFAX  scheduler,	 faxq(8C), uses the information stored in this
       directory when deciding if a call should be placed and  when  preparing
       documents  for  transmission.   If  a  remote device's capabilities are
       known,  then  document  preparation  is	constrained  and/or  optimized
       according to the capabilities.  Otherwise, documents are prepared with‐
       out regard for the remote device's capabilities	and  if	 a  capability
       mismatch is encountered the session is terminated and the documents are
       reformatted using the newly discovered capabilities.

       The calledBefore item is used by faxsend to decide whether  or  not  to
       redial  a  phone number when encountering certain errors.  For example,
       if a dialing command results in a ``NO CARRIER'' result, then the  num‐
       ber  will  not  be retried unless the number has previously been dialed
       successfully.

       The minScanlineTime item indicates the minimum scanline time  parameter
       used  for  facsimile  transmissions.   Acceptable  values are: ``0ms'',
       ``5ms'',	   ``10ms/5ms'',    ``10ms'',	  ``20ms/10ms'',     ``20ms'',
       ``40ms/20ms'', and ``40ms''.  (Values of the form X/Y mean to use X for
       98 lpi images and Y for 196 lpi images.)

       The pagerTTYParity item specifies the communication parameters  to  use
       when  communicating with the IXO/TAP service provider.  Acceptable val‐
       ues are: ``even'' (7 bits, even parity), ``odd'' (7 bits, odd  parity),
       and  ``none''  (8  bits,	 no  parity).	If  nothing  is specified then
       ``even'' is used per the standard.

       The pagerMaxMsgLength, pagerPassword, and pagerTTYParity items  can  be
       setup  according	 to the requirements of a pager service provider; they
       typically are locked down so that their	values	are  not  lost	during
       updates.

       The pagerSetupCmds can be used to define AT commands for setting up the
       modem for a specific service provider.  This value overwrites the  set‐
       tings defined in hylafax-config(5F).

       The  pageSource parameter can be used to tell the paging central who we
       are.  It usually contains a SMS answerable mobile number.  It  is  only
       used for the UCP part of sendpage(8C).  Note:  This parameter should be
       used from user-land sendpage(1) and will be removed later.

       The pagingProtocol defines which protocol, UCP or IXO, should  be  used
       to  send	 the  message to the service provider. It defaults to ``ixo'';
       for UCP set ``ucp''.

NOTES
       faxsend, pagesend, and faxq automatically create and update entries  in
       the info directory, as required.

       The  data  in  this  directory is simply a cache of remote capabilities
       and, except for locked down items, can be safely purged	at  any	 time.
       The  faxcron(8C)	 script,  for  example,	 periodically  purges unlocked
       entries in this directory that have not been accessed in 30 days.

       When the first batching attempt fails then supportsBatching is  set  to
       false.	It  must be manually altered in order to re-enable batching to
       the destination.

       Restricting the capabilities used with a particular machine to a	 value
       other than those that are mandatory can cause documents to be sent out‐
       side of an acceptable range for the receiver.

SEE ALSO
       faxcron(8C), faxq(8C), faxsend(8C), pagesend(8C), hylafax-config(5F)

			       February 10, 1996	      HYLAFAX-INFO(5F)
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