[pjsip] DTMF and Null Device

[Archie Rosenblum]

Thank you, Gang and Nanang, for taking the time to investigate my issue. 

 

Archie

 

  _____  

From: pjsip-bounces at lists.pjsip.org [mailto:pjsip-bounces at lists.pjsip.org]
On Behalf Of Gang Liu
Sent: Monday, November 10, 2008 4:53 AM
To: pjsip list
Subject: Re: [pjsip] DTMF and Null Device

 

Null device was ok for me.
Pls make sure remote side has included telephone-event at its SDP, otherwise
pjsip wouldn't send out 2833.

regards,
Gang

On Mon, Nov 10, 2008 at 2:41 AM, Archie Rosenblum <archie at bbsti.com> wrote:
> I have a small server app that listens and sends DTMF digits.  The null
> device [pjsua_set_null_snd_dev()] is very handy for this application since
> the machine is not equipped with a sound card.  When I send DTMF digits
> using pjsua_call_dial_dtmf() I do not hear the DTMF digit on the receiving
> side.  I have tested this on other machines with a sound card and it seems
> that if there is a regular sound device, the DTMF digit is heard, but
after
> a call to pjsua_set_null_snd_dev() nothing is heard.  Is there a way to
send
> DTMF when using the null sound device?
>
>
>
> Best regards,
>
> Archie
>

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