Detecting incoming DTMF

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Thanks a ton Eize & Vali for your valuable inputs.

Regards
Manmeet

On 03/11/2013 01:36 PM, Eize Slange wrote:
>
> 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
>     <mailto:manmeets at gc-solutions.net>>
>     To: PJSip List <pjsip at lists.pjsip.org <mailto: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.
>
>
>
>
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