Re: [hylafax-users] some faxes don't go through asterisk+IAXmodem

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Laurent Lesage wrote:
> Lee Howard a écrit :
> > Laurent Lesage wrote:
> > > > Mar 24 05:44:30.67: [ 3650]: RECV FAX: No sender protocol (T.30 T1 
> > > > timeout)
> >
> > This means that no fax signals were heard from the caller.  It's 
> > doubtful the caller was a fax machine.
> Though I do not have your "fax-experience", I had the same impression 
> (because that's the trace I get for a voice call). But as I wrote, the 
> same machine some times works. I think it must be an old fax machine : 
> is it possible that this fax "waits" for sthg without sending any fax 
> tone?? Before, when there was just a hardware fax machine on our side, 
> the guy had no problem to send faxes.

Watch the Asterisk CLI on these problem calls.  See if fax detection is 
robbing the call to somewhere else.  Disable fax detection everywhere.

> > > > Mar 22 12:10:10.17: [ 3650]: RECV send RTN (retrain negative)
> > > > Mar 22 12:10:10.17: [ 3650]: RECV FAX (000000014): from 0xxxxxxx, 
> > > > page 2 in 0:18, INF, 3.85 line/mm, 2-D MR, 9600 bit/s
> > > > Mar 22 12:10:10.17: [ 3650]: <-- data [3]
> > > > Mar 22 12:10:10.17: [ 3650]: <-- data [2]
> > > > Mar 22 12:10:11.25: [ 3650]: --> [2:OK]
> > > > Mar 22 12:10:11.25: [ 3650]: <-- [9:AT+FRH=3\r]
> > > > Mar 22 12:10:11.59: [ 3650]: --> [7:CONNECT]
> > > > Mar 22 12:10:12.75: [ 3650]: --> [2:OK]
> > > > Mar 22 12:10:12.75: [ 3650]: RECV recv DCN (disconnect) 
> >
> > This is actually a normal error.  RTN means that HylaFAX rejected the 
> > page image quality, but it doesn't require the sender to retransmit.  
> > The sender chose to disconnect instead of retransmitting.
> Yes, the fax was nearly OK (just the 3 last lines with some garbage in 
> the pixels). But the remote machine "told" the sender that ther was an 
> error and he sent the fax again, this time without any error. 

Good, that's as it should be.  The end-result is what was desired: the 
sender retransmitted.

Thanks,

Lee.


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