On 06/17/2017 at 02:18 PM, Michael Maier wrote: > On 06/16/2017 at 04:00 PM, Joshua Colp wrote: >> On Fri, Jun 16, 2017, at 10:49 AM, Michael Maier wrote: >> >> <snip> >> >>> >>> t38modem and asterisk are using >>> >>> m=image 35622 udptl t38 >>> ^^^^^ >>> >>> Provider uses >>> >>> m=image 35622 UDPTL t38 >>> ^^^^^ >>> >>> Could this be a problem? If I'm sending internal only, it's always >>> lowercase. >> >> Looking at the tests we have we only use 'udptl' as the transport. >> Without diving deep into the SDP negotiator it is possible that it gets >> upset at that, as we would only produce 'udptl'. If the SDP negotiator >> in PJSIP is case sensitive then you'd get a declined stream like you >> see. Looking at the T.38 examples from the ITU doc also shows it in >> lowercase, so uppercase is probably not commonly used. > > I can proof, that UDPTL vs. udptl is the problem. After "fixing" > asterisk and opal both using UDPTL, the negotiation works flawlessly. > See attached patches.
For opal, the sip patch (src/t38/sipt38.cxx) is enough - the other two patches aren't necessary. It's only a SIP-problem. Regards, Michael -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
