[asterisk-users] 1.6.1.18 -> 1.6.2.6 T38 Fax: call drops

[sean darcy]

sean darcy wrote:
> Using spandsp-0.0.6-pre17, SendFax on 1.6.1.18 and ReceiveFax on 
> 1.6.2.8. Sip.conf on both sides has t38pt_udptl = yes.
> 
>      -- Executing [s at fax-tx-test:3] SendFAX("SIP/side-sip-00000009", 
> "/var/spool/asterisk/fax/20091113_1455.tif") in new stack
> [Mar 20 17:05:34] WARNING[6433]: app_fax.c:178 phase_e_handler: Error 
> transmitting fax. result=49: The call dropped prematurely.
> [Mar 20 17:05:34] WARNING[6433]: app_fax.c:772 transmit: Transmission failed
>      -- Executing [s at fax-tx-test:4] Hangup("SIP/side-sip-00000009", "") 
> in new stack
>    == Spawn extension (fax-tx-test, s, 4) exited non-zero on 
> 'SIP/side-sip-00000009'
>      -- Executing [h at fax-tx-test:1] NoOp("SIP/side-sip-00000009", 
> "FAXSTATUS: FAILED
> FAXERROR: The call dropped prematurely
> FAXMODE: T38")
> 
> On the receive side:
> 
>      -- Executing [s at incoming-fax:2] ReceiveFAX("SIP/side-sip-00000002", 
> "/var/spool/asterisk/fax/20100320_1705.tif") in new stack
> [Mar 20 17:05:34] WARNING[21512]: app_fax.c:223 phase_e_handler: Error 
> transmitting fax. result=48: Disconnected after permitted retries.
> [Mar 20 17:05:34] WARNING[21512]: app_fax.c:820 transmit: Transmission 
> failed
>      -- Executing [s at incoming-fax:3] Hangup("SIP/side-sip-00000002", "") 
> in new stack
> 
> FAXSTATUS: FAILED
> FAXERROR: Disconnected after permitted retries
> FAXMODE: T38")
> 
> Sip audio calls work fine over side-sip.
> 
> Any suggestions welcome.
> 
> sean
> 
> 

FWIW, this works DAHDI->DAHDI.

I'm going to file a bug report, but I though I'd check again to if I'm 
doing something stupid. Or if there some clever way to debug fax.

sean