2009/2/10 David Backeberg <[email protected]> > On Mon, Feb 9, 2009 at 4:23 PM, Olivier <[email protected]> wrote: > > Hi, > > > > I would like to improve my understanding of T.38. > > I recommend you try out Asterisk 1.6 if you want to play with T.38. > I DID get asterisk-1.4 working with fax, but I was having a lot of > issues with faxes dropping in weird ways. All of those issues went > away when I upgraded to 1.6. Don't waste your time like I did.
I can see what you mean, now, since I'm trying hard to understand how Asterisk 1.4 is working with T.38. At the moment, not only fax is not really working but I even get aborted voice calls because of "415 unsupported media" ! It seems Asterisk keeps advertising T.38 support to callee endpoint though this endpoint is configured in sip.conf to accept only alaw !! Endpoint is configured with : t38pt_udptl=no t38pt_rtp=no t38pt_tcp=no disallow=all allow=alaw canreinvite=no So I must be misunderstanding what t38pt_udptl=no means. Maybe it simply means "if t38pt_udptl=yes, then use this type of T.38, else use another type of T.38" and setting t38pt_udptl=no is not enough to prevent an endpoint to receive T.38 offers ... Or maybe it's a bug ... > > app_fax in asterisk-1.6 is very, very nice and worked great for me. It > works with traditional analog fax as well as T.38. I have to say I'm > impressed and grateful for all who contributed to this. > asterisk-1.6 also has a better SIP stack and other improvements. > > Rather than trying to get 1.4 working with this, I strongly recommend > reading the directions at: > http://www.voip-info.org/tiki-index.php?page=Asterisk%20T.38 > to build asterisk-1.6 with app_fax support > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
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