Is it possible to force T38 for all invocations ReceiveFAX() ? Receiving fax always worked OK on Callweaver though I could put SipT38Switchover() into the dial plan. I can't with Digium fax, and it always fails at the point it decides to switch to T38.
On Sun, Apr 26, 2009 at 8:33 AM, Michael <astml at nettrust.co.nz> wrote:> Is it possible to force T38 for all invocations ReceiveFAX() ?If it's not T.38, it should instead be audio over G.711 or similar codec. Are your faxes going through as audio? If not, that's a strong indication that you have a SIP configuration issue you need to work through before you worry about T.38. Are you doing something with a fancy codec like G.729? If so, stop. You can't fax over G.729. You should be able to modify your dialplan to record your ReceiveFax() session and hear exactly what is failing on your audio fax if your audio fax is failing.
Michael wrote:> Is it possible to force T38 for all invocations ReceiveFAX() ?It already does that.> I can't with Digium fax, and it always fails at the point it decides to switch > to T38.You've posted two or three messages about this, but haven't included any information we could use to help you. At a minimum, we need the exact versions of Asterisk and FFA you tested with, and a complete console log (including verbosity >= 10, debug >= 10 and 'sip set debug on') to see what is happening. -- Kevin P. Fleming Digium, Inc. | Director of Software Technologies 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA skype: kpfleming | jabber: kpfleming at digium.com Check us out at www.digium.com & www.asterisk.org
On Mon, 27 Apr 2009 00:33:44 +1200 Michael <astml at nettrust.co.nz> wrote:> I can't with Digium fax, and it always fails at the point it decides > to switch to T38.Have you tried dedicating the line to fax only, no "detection"? I tried using it, but for me it apparently fails the codec switch: WARNING[3862]: frame.c:214 __ast_smoother_feed: Smoother was working on 4 format frames, now trying to feed 64? [Apr 14 21:50:46] ERROR[3862]: res_fax.c:910 generic_fax_exec: channel 'DAHDI/1-1' fax session '3' failure, reason: 'Failed to feed the smoother' But if I just initiate the fax on that channel for whatever comes, it works. http://forums.digium.com/viewtopic.php?p=128681#128681 Cheers, -- |\ /| | | ~ ~ | \/ | |---| `|` ? | |ichael | |iggins \^ / michael.higgins[at]evolone[dot]org