[Asterisk-Users] DTMF issues with SIPPhone?

[Jason DiCioccio]

I'll give it a shot.. Do you know if they have any plans to merge this in?

On 8/8/05, Gary Reuter <gary.reuter at gmail.com> wrote:
> On 8/8/05, Jason DiCioccio <geniusj at gmail.com> wrote:
> > I guess the problem is with SIPPhone then.  I opened a ticket with
> > them.  I'll post their response when I have one.
> >
> I wouldn't bet money on that yet...
> I've seen identical DTMF problems (doubled and mangled) digits and
> I've never used SIPPhone.
> I had traced it to a problem in the way asterisk handles
> out-of-sequence RFC2833 dtmf indications.  See the -dev thread here:
> http://lists.digium.com/pipermail/asterisk-dev/2005-May/thread.html#12655
> 
> I tracked it down by using ethereal on the sip and rtp streams between
> my different (working and non-working) SIP providers.  The only
> difference I could find was the order of the dtmf packets, and with
> the simple change to an 'if' statement mentioned in the -dev thread,
> the problems all went away.
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