[asterisk-users] Urgent: DTMF does not work with, rtpmap:101 telephone-event/8000

[Alex Balashov]

JK,

On Fri, 25 May 2007, JK wrote:

> Alex thank you for your response. In this case we are USING INBAND, 
> though I have tried both. Nothing works. Yes ser is configured with 
> mediaproxy. Thank you,

   Depending on the exact acoustic qualities of the end-to-end path,
in-band can be problematic.  If you're relying on far-end equipment to
discriminate tones from within an audio stream that is subject to
potential transcoding, mangling, packet loss, out-of-order arrival, etc.,
you may be out of luck.

   Admittedly, I'm not sure exactly what your problem is.  But you're
almost always better off using out-of-band RFC 2833.

--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : +1-678-954-0670