Re: [hylafax-users] Hylafax and brother faxmachines

[Lee Howard <faxguy@howardsilvan.com>]

On 2002.09.26 21:27 Richard Houston wrote:

> Sep 23 12:08:43.43: [ 1360]: SESSION BEGIN 00000198 19995551212
> Sep 23 12:08:43.43: [ 1360]: HylaFAX (tm) Version 4.1.2
> Sep 23 12:08:43.43: [ 1360]: <-- [4:ATA\r]
> Sep 23 12:08:49.63: [ 1360]: --> [7:CONNECT]
> Sep 23 12:08:49.63: [ 1360]: ANSWER: FAX CONNECTION  DEVICE
> '/dev/ttyrp06'
> Sep 23 12:08:49.63: [ 1360]: RECV FAX: begin
> Sep 23 12:08:49.63: [ 1360]: <-- data [23]
> Sep 23 12:08:49.63: [ 1360]: <-- data [2]
> Sep 23 12:08:51.32: [ 1360]: --> [7:CONNECT]
> Sep 23 12:08:51.32: [ 1360]: <-- data [10]
> Sep 23 12:08:51.32: [ 1360]: <-- data [2]
> Sep 23 12:08:51.96: [ 1360]: --> [2:OK]
> Sep 23 12:08:51.96: [ 1360]: <-- [9:AT+FRH=3\r]
> Sep 23 12:08:52.56: [ 1360]: --> [7:CONNECT]
> Sep 23 12:08:53.90: [ 1360]: --> [2:OK]
> Sep 23 12:08:53.90: [ 1360]: REMOTE TSI "2042841533"
> Sep 23 12:08:53.90: [ 1360]: <-- [9:AT+FRH=3\r]
> Sep 23 12:08:54.32: [ 1360]: --> [7:CONNECT]
> Sep 23 12:08:54.32: [ 1360]: --> [2:OK]
> Sep 23 12:08:54.32: [ 1360]: REMOTE wants 9600 bit/s
> Sep 23 12:08:54.32: [ 1360]: REMOTE wants page width 1728 pixels in
> 215
> mm
> Sep 23 12:08:54.32: [ 1360]: REMOTE wants unlimited page length
> Sep 23 12:08:54.32: [ 1360]: REMOTE wants 3.85 line/mm
> Sep 23 12:08:54.32: [ 1360]: REMOTE wants 1-D MR
> Sep 23 12:08:54.32: [ 1360]: RECV training at v.29 9600 bit/s
> Sep 23 12:08:54.32: [ 1360]: <-- [10:AT+FRM=96\r]
> Sep 23 12:08:58.81: [ 1360]: --> [0:]

And *here's* the problem.  A 4.5 second silence period will mess up 
almost any fax.

What's happening is that we go to look for the v.29 TCF carrier and 
don't find it.  Instead of telling us +FCERROR it just stares at us 
blankly... probably because it encountered silence and was confused by 
it... or by some disconnect noise generated by the remote dropping its 
V.21 carrier.  In any case, we can probably eliminate this problem by 
explicitly looking for the requisite silence before TCF.  This is the 
point of Class1TCFRecvHack in 4.1.3.  Try using that and see if it 
helps.  Hopefully it doesn't screw anything else up.

What modem model are you using?

> Sep 23 12:08:58.81: [ 1360]: MODEM <Empty line>
> Sep 23 12:08:58.81: [ 1360]: <-- data [1]
> Sep 23 12:08:59.00: [ 1360]: --> [2:OK]
> Sep 23 12:08:59.00: [ 1360]: DELAY 75 ms
> Sep 23 12:08:59.07: [ 1360]: <-- [9:AT+FTH=3\r]
> Sep 23 12:08:59.30: [ 1360]: --> [7:CONNECT]
> Sep 23 12:08:59.30: [ 1360]: <-- data [3]
> Sep 23 12:08:59.30: [ 1360]: <-- data [2]
> Sep 23 12:09:00.62: [ 1360]: --> [2:OK]
> Sep 23 12:09:00.62: [ 1360]: TRAINING failed

Lee.

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