The pjmedia_stream_set_dtmf_callback() is internally hooked in RFC-2833/4733 detection code in stream.c. PJSIP currently supports (unfortunately) no inband DTMF detection. It does support RFC-2833 (RFC-4733). This also mentioned in the feature overview of PJSIP as well as FAQ. Support for SIP:INFO digits can easily be arranged by your own 'parser' for the INFO messages. There are however some people who have implemented inband DTMF detection, but this has never been submitted to the community. I also fired this question once, but at the end I didn't need it anymore. You could re-use parts of e.g. SpanDSP to make your own 'plugin' (port-device), alike WAV file-writer (see src-tree in pjmedia). Here you can feed your detection code with the decoded stream and fire a callback in case of detection. With regards, Eize ---------- Forwarded message ---------- > From: Manmeet Singh <manmeets@xxxxxxxxxxxxxxxx> > To: PJSip List <pjsip at lists.pjsip.org> > Cc: > Date: Mon, 11 Mar 2013 12:58:19 +0530 > Subject: Re: Detecting incoming DTMF > Hello All, > > I have a similar confusion, the documentation says DTMF detection is not > supported, but I see pjmedia_stream_set_dtmf_callback in stream.h. > > Please clarify if the documentation is correct or not updated. > > Regards > Manmeet > > On 03/10/2013 08:15 PM, Abdelrahman Salah wrote: > > Dear all, > I read in the FAQ that PJSIP currently does not support DTMF detection,. > i have a DTMF routine, but i don't know how to integrate it with PJSIP, > any pointers where to start, > your help will be most appreciated. > > thanks in advance. > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130311/56eae66f/attachment-0001.html>
