opensipstack-devel

[OpenSIPStack] Double DTMF

[Whit T. <de...@wh...>]

I'm trying to play DTMF tones out of ATLSIP, into asterisk and out to the
PSTN via a SIP trunk. I know there are several dtmfmode configurations to
use such as info or inband but I'm getting some strange behavior. 9 times
out of 10 I'll get double tones when using SendINFOTone. Then, using
SendRFC2833Tone it sometimes doesn't even play anything at all to the called
party. I tried using an X-Lite Softphone to eliminate it being an asterisk
issue and it works fine so I wonder if there is something strange happening
here with ATLSIP. Any suggestions or is anyone else having these problems?

Whit

Re: [OpenSIPStack] Double DTMF

[Joegen E. B. <joe...@gm...>]

Are you playing the DTMF tones locally as well (I mean do you play the 
tone in your local speaker as well)?   Consider the possibility that 
Asterisk is detecting the tone you generate locally inband on top of the 
OOB DTMF you send via INFO or RFC 2833.  


Whit Thiele wrote:
> I'm trying to play DTMF tones out of ATLSIP, into asterisk and out to the
> PSTN via a SIP trunk. I know there are several dtmfmode configurations to
> use such as info or inband but I'm getting some strange behavior. 9 times
> out of 10 I'll get double tones when using SendINFOTone. Then, using
> SendRFC2833Tone it sometimes doesn't even play anything at all to the called
> party. I tried using an X-Lite Softphone to eliminate it being an asterisk
> issue and it works fine so I wonder if there is something strange happening
> here with ATLSIP. Any suggestions or is anyone else having these problems?
>
> Whit
>
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