[Freeswitch-users] DTMF issues

[Michael Jerris]

Look at the sdp, are they responding with a different pt for telephone-event than in our initial invite?

Mike

On Apr 15, 2010, at 8:04 AM, Dan Lane wrote:

> I've got an issue where DTMF has stopped working with outbound calls
> (DTMF works on inbound calls from them) via one of my service
> providers (still works fine with several other providers) so I assumed
> it was a change the termination provider had made and duly reported it
> to them.
> 
> Their response was:
> 
> "We have analysed rtp from xlite to freeswitch to us and xlite to us
> 1. volume is being made much quieter by freeswitch, i.e. standard dtmf
> volume 10 is being re-written to 7
> 2. dtmf is shorter, i.e messages from phones are being re-written to a
> really short version
> 3. timestamp discontinuity  Audio to RTP conversion point. timestamps
> are indicating missing packets received via freeswitch"
> 
> The service provider is running a mixture of Cisco AS 5300's and
> 5350xm's, I don't think it's a bug in Freeswitch (I have a number of
> Freeswitch boxes that are all affected running different versions from
> 1.0.4pre7 to r17188) as DTMF was working once upon a time... can
> anyone think of anything obvious that either I or the service provider
> could be missing?
> 
> Thanks.