[hylafax-users] failure to receive silence

["Ioannis Mavroidis" <imavroid@xxxxxxxxx>]

Hello all,

I am using hylafax-4.4.2 on fedora core 6, and my modem is a PCI softmodem with a motorola
chipset and uses the slamr driver. I am getting "Failure to
receive silence" when trying to send a fax. In general I am able to send & receive faxes, but sometimes some
faxes do not go through. What could the problem be?

Here are the last few lines of my modem config file:

Class1Cmd:              AT+FCLASS=1     # command to enter class 1
Class1PPMWaitCmd:       AT+FTS=7        # command to stop and wait before PPM
Class1TCFWaitCmd:       AT+FTS=7        # command to stop and wait before TCF
Class1EOPWaitCmd:       AT+FTS=9        # command to stop and wait before EOP
Class1SwitchingCmd:     AT+FRS=7        # silence between HDLC recv and trans
Class1RecvAbortOK:      200             # wait 200ms for abort response
Class1FrameOverhead:    4               # 4 byte overhead in recvd HDLC frames
Class1RecvIdentTimer:   40000           # 35+5secs waiting for ident frames
Class1TCFMaxNonZero:    10              # max 10% of data may be non-zero
Class1TCFMinRun:        1000            # min run is 2/3rds of TCF duration

and here is an example failed job log:

Jan 03 17:05:24.03: [ 5790]: SESSION BEGIN 000000208 XXXXX
Jan 03 17:05:24.03: [ 5790]: HylaFAX (tm) Version 4.4.2
Jan 03 17:05:24.03: [ 5790]: SEND FAX: JOB 20 DEST XXXXX COMMID 000000208 DEVICE '/dev/ttySL0' FROM 'XXXXX' USER root
Jan 03 17:05:24.03: [ 5790]: <-- [12:AT+FCLASS=1\r]
Jan 03 17:05:24.03: [ 5790]: --> [2:OK]
Jan 03 17:05:24.03: [ 5790]: DIAL XXXXX
Jan 03 17:05:24.03: [ 5790]: <-- [15:ATDTXXXXX\r]
Jan 03 17:06:10.26: [ 5790]: --> [7:CONNECT]
Jan 03 17:06:11.62: [ 5790]: --> [2:OK]
Jan 03 17:06:11.62: [ 5790]: REMOTE NSF "BC 53 01 60 12 03 00"
Jan 03 17:06:11.62: [ 5790]: NSF remote fax equipment: Minolta
Jan 03 17:06:11.62: [ 5790]: <-- [9:AT+FRH=3\r]
Jan 03 17:06:11.64: [ 5790]: --> [7:CONNECT]
Jan 03 17:06:12.32: [ 5790]: --> [2:OK]
Jan 03 17:06:12.32: [ 5790]: REMOTE CSI ""
Jan 03 17:06:12.32: [ 5790]: <-- [9:AT+FRH=3\r]
Jan 03 17:06:12.34: [ 5790]: --> [7:CONNECT]
Jan 03 17:06:42.78: [ 5790]: MODEM <Timeout>
Jan 03 17:06:42.78: [ 5790]: <-- [9:AT+FRS=7\r]
Jan 03 17:06:42.83: [ 5790]: --> [2:OK]
Jan 03 17:06:42.84: [ 5790]: <-- [9:AT+FRH=3\r]
Jan 03 17:06:44.13: [ 5790]: --> [7:CONNECT]
Jan 03 17:07:15.48: [ 5790]: MODEM <Timeout>
Jan 03 17:07:15.48: [ 5790]: No receiver protocol (T.30 T1 timeout)
Jan 03 17:07:15.48: [ 5790]: SEND FAILED: JOB 20 DEST XXXXX ERR [126] No receiver protocol (T.30 T1 timeout)
Jan 03 17:07:15.48: [ 5790]: <-- [9:AT+FRS=7\r]
Jan 03 17:07:15.48: [ 5790]: --> [5:ERROR]
Jan 03 17:07:15.48: [ 5790]: MODEM Command error
Jan 03 17:07:15.48: [ 5790]: Failure to receive silence (synchronization failure).
Jan 03 17:07:15.48: [ 5790]: <-- [9:AT+FTH=3\r]
Jan 03 17:07:15.48: [ 5790]: --> [5:ERROR]
Jan 03 17:07:16.48: [ 5790]: <-- [5:ATH0\r]
Jan 03 17:07:16.58: [ 5790]: --> [2:OK]
Jan 03 17:07:16.58: [ 5790]: SESSION END