you may have a sonus infection<br><br>try some of the stuff from here under DTMF<br><br><a href="http://wiki.freeswitch.org/wiki/RTP_Issues">http://wiki.freeswitch.org/wiki/RTP_Issues</a><br><br><br><div class="gmail_quote">
On Thu, May 7, 2009 at 5:16 AM, Jason White <span dir="ltr"><<a href="mailto:jason@jasonjgw.net">jason@jasonjgw.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im">Remko Kloosterman <<a href="mailto:R.Kloosterman@mtel.nl">R.Kloosterman@mtel.nl</a>> wrote:<br>
><br>
><br>
> Did you make a wireshark trace yet? You should be able to find out<br>
> exactly what's going on there, which protocol is used, etc. We've had<br>
> our share of problems with DTMF over SIP trunks as well.<br>
<br>
</div>I've just discovered that I'm having a similar problem to the one discussed in<br>
this thread. Here are the symptoms.<br>
<br>
1. If I call FreeSWITCH from my Snom 320 SIP phone, DTMF recognition works<br>
perfectly. This is also true if I call a friend's FreeSWITCH system.<br>
<br>
2. If I call a certain VoIP provider from the Snom phone, via FreeSWITCH<br>
(phone -> FreeSWITCH -> provider) and call the provider's DTMF test, DTMF<br>
recognition fails to work. Apparently this provider accepts only RFC-2833,<br>
which is what FreeSWITCH should be issuing - I haven't changed the settings in<br>
the external profile from the defaults.<br>
<br>
3. If I call the same provider's DTMF test from PortAudio and issue the pa<br>
dtmf command, the provider recognizes the DTMF traffic correctly.<br>
<br>
I couldn't find any obvious configuration errors on the phone or in my<br>
internal and external Sofia profiles.<br>
<br>
I'll gladly run tshark if that's the next step to take.<br>
<br>
I can also try setting <param name="pass-rfc2833" value="true"/> in the<br>
internal profile, but this shouldn't be necessary, since as the wiki states in<br>
documenting this variable, FreeSWITCH should decode and re-encode the RFC2833<br>
data anyway when this is set to false.<br>
<br>
I'll keep working on this, but in the meantime, suggestions are welcome.<br>
<div><div></div><div class="h5"><br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Anthony Minessale II<br><br>FreeSWITCH <a href="http://www.freeswitch.org/">http://www.freeswitch.org/</a><br>ClueCon <a href="http://www.cluecon.com/">http://www.cluecon.com/</a><br>
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