you may have a sonus infection try some of the stuff from here under DTMF http://wiki.freeswitch.org/wiki/RTP_Issues On Thu, May 7, 2009 at 5:16 AM, Jason White <jason@jasonjgw.net> wrote:
Remko Kloosterman <R.Kloosterman@mtel.nl> wrote:
Did you make a wireshark trace yet? You should be able to find out exactly what's going on there, which protocol is used, etc. We've had our share of problems with DTMF over SIP trunks as well.
I've just discovered that I'm having a similar problem to the one discussed in this thread. Here are the symptoms.
1. If I call FreeSWITCH from my Snom 320 SIP phone, DTMF recognition works perfectly. This is also true if I call a friend's FreeSWITCH system.
2. If I call a certain VoIP provider from the Snom phone, via FreeSWITCH (phone -> FreeSWITCH -> provider) and call the provider's DTMF test, DTMF recognition fails to work. Apparently this provider accepts only RFC-2833, which is what FreeSWITCH should be issuing - I haven't changed the settings in the external profile from the defaults.
3. If I call the same provider's DTMF test from PortAudio and issue the pa dtmf command, the provider recognizes the DTMF traffic correctly.
I couldn't find any obvious configuration errors on the phone or in my internal and external Sofia profiles.
I'll gladly run tshark if that's the next step to take.
I can also try setting <param name="pass-rfc2833" value="true"/> in the internal profile, but this shouldn't be necessary, since as the wiki states in documenting this variable, FreeSWITCH should decode and re-encode the RFC2833 data anyway when this is set to false.
I'll keep working on this, but in the meantime, suggestions are welcome.
_______________________________________________ Freeswitch-users mailing list Freeswitch-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Anthony Minessale II FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ AIM: anthm MSN:anthony_minessale@hotmail.com <MSN%3Aanthony_minessale@hotmail.com> GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com<PAYPAL%3Aanthony.minessale@gmail.com> IRC: irc.freenode.net #freeswitch FreeSWITCH Developer Conference sip:888@conference.freeswitch.org <sip%3A888@conference.freeswitch.org> iax:guest@conference.freeswitch.org/888 googletalk:conf+888@conference.freeswitch.org<googletalk%3Aconf%2B888@conference.freeswitch.org> pstn:213-799-1400