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Re: [hylafax-users] T.30 T1 timeout question



marthter wrote:

Lee Howard wrote on 17/03/05 05:09 PM:

marthter wrote:

Mar 17 08:30:13.74: [ 7547]: <-- [14:AT+FCLASS=1.0\r]
Mar 17 08:30:13.84: [ 7547]: --> [2:OK]
Mar 17 08:30:13.84: [ 7547]: <-- [14:AT+F34=14,1,2\r]
Mar 17 08:30:13.95: [ 7547]: --> [2:OK]
Mar 17 08:30:13.96: [ 7547]: DIAL 4161234567
Mar 17 08:30:13.96: [ 7547]: <-- [15:ATDT4161234567\r]
Mar 17 08:30:32.98: [ 7547]: --> [8:+F34:6,1]
Mar 17 08:30:32.98: [ 7547]: V.8 handshaking succeeded, V.34-Fax (SuperG3) capability enabled.
Mar 17 08:30:32.98: [ 7547]: Primary channel rate: 14400 bit/s, Control channel rate: 1200 bit/s.
Mar 17 08:30:32.98: [ 7547]: --> [7:CONNECT]
Mar 17 08:30:32.99: [ 7547]: Control channel selected
Mar 17 08:30:32.99: [ 7547]: EOT received (end of transmission)



Mar 17 01:11:29.70: [ 4739]: SESSION BEGIN 000023371 14161234567
Mar 17 01:11:29.71: [ 4739]: HylaFAX (tm) Version 4.2.1
Mar 17 01:11:29.71: [ 4739]: SEND FAX: JOB 24829 DEST 416-123-4567 COMMID 000023371 DEVICE '/dev/ttyS5'
Mar 17 01:11:29.71: [ 4739]: <-- [14:AT+FCLASS=1.0\r]
Mar 17 01:11:29.82: [ 4739]: --> [2:OK]
Mar 17 01:11:29.82: [ 4739]: <-- [14:AT+F34=14,1,2\r]
Mar 17 01:11:29.93: [ 4739]: --> [2:OK]
Mar 17 01:11:29.93: [ 4739]: DIAL 4161234567
Mar 17 01:11:29.93: [ 4739]: <-- [15:ATDT4161234567\r]
Mar 17 01:12:20.21: [ 4739]: --> [2:]
Mar 17 01:12:20.22: [ 4739]: SEND FAILED: JOB 24829 DEST 416-123-4567 ERR Unknown problem (check modem power)



Does it work if you send without V.34-Fax? ('sendfax -B 14400')


Lee.



Thank you for the suggestion. Yes it seems to work (see log file below).


You may want to try updating the firmware on the modems. If that doesn't help, then you should probably report the matter to the manufacturer.


sendfax -B 14400 -t 1 -T 1 -vv -n -d 416-123-4567 ~/a.txt


So is this likely a crappy Brother modem or noisy line to the destination?


Well, it's probably a V.8 handshaking problem with the modem. But it could be a bad connection.

(I notice it even didn't like 14400 and retrained to 12000; is that relevant?)


Maybe. It seems indicative of connectivity problems, however the rest of the fax doesn't share that indication. It's probably some other matter that we'd need to figure out.

I looked in /var/spool/hylafax/info/[destinationNumber] and it says:

supportsVRes:3
supports2DEncoding:yes
supportsMMR:yes
hasV34Trouble:no
supportsPostScript:no
supportsBatching:yes
calledBefore:yes
maxPageWidth:1728
maxPageLength:65535
maxSignallingRate:"33600"
minScanlineTime:"10ms"
remoteCSI:"4161234567"
sendFailures:0
lastSendFailure:"No answer (T.30 T1 timeout)"
dialFailures:0
lastDialFailure:"No carrier detected"
&pagingProtocol:"ixo"


Notably, whatever is setting "hasV34Trouble:no" seems to not have interpreted the above errors as V34 trouble.


Some of the features in the info file are determined by direct interpretation of capabilities indications on the receiver. Others, however, are determined by "experience". So in the case of hasV34Trouble we haven't yet taught HylaFAX to recognize the kind of trouble that you've seen as being the kind of "experience" that qualifies for hasV34Trouble.

Lee.

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