/var/spool/hylafax/config/exar is in hylafax-server 3:6.0.6-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63  | # $Id$
#
# HylaFAX Facsimile Software
#
# Copyright (c) 1990-1996 Sam Leffler
# Copyright (c) 1991-1996 Silicon Graphics, Inc.
# HylaFAX is a trademark of Silicon Graphics, Inc.
# 
# Permission to use, copy, modify, distribute, and sell this software and 
# its documentation for any purpose is hereby granted without fee, provided
# that (i) the above copyright notices and this permission notice appear in
# all copies of the software and related documentation, and (ii) the names of
# Sam Leffler and Silicon Graphics may not be used in any advertising or
# publicity relating to the software without the specific, prior written
# permission of Sam Leffler and Silicon Graphics.
# 
# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
# 
# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
# OF THIS SOFTWARE.
#
#
# Configuration for a Exar-manufactured Class 2 modem.
#	Yocom 1414E		firmware E.C.  Version : 7.1
#
# This configuration file sets up the modem to run at 19.2 for
# sending and for receiving.  XON/XOFF flow control is used on
# the tty port.
#
# CONFIG: CLASS2: EXAR*-XONXOFF
# CONFIG: CLASS2: EXAR*-DEFAULT
#
# BEGIN-SERVER
# END-SERVER
#
# Modem-related stuff: should reflect modem command interface
# and hardware connection/cabling (e.g. flow control).
#
ModemType:		Class2		# use class 2 interface
ModemRate:		19200		# fax send&recv is locked at 19.2
ModemFlowControl:	xonxoff		# default
#
ModemSoftFlowCmd:	AT&S1\G0\Q4\X1	# software flow control
ModemSetupDTRCmd:	AT&D2		# DTR off causes modem to reset
ModemSetupDCDCmd:	AT&C1		# DCD follows carrier
ModemSetupAACmd:	AT+FAA=1	# enable in current class
#
ModemSendFillOrder:	LSB2MSB		# as expected
ModemRecvFillOrder:	MSB2LSB		# opposite of what makes sense
#
ModemDialCmd:		ATDT%s		# T for tone dialing
#
ModemWaitForConnect:	yes		# wait for CONNECT on answer
#
Class2RecvDataTrigger:	"\022"		# DC2
Class2DDISCmd:		AT+FDIS		# set parameter before dialing
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