[VoIP] DTMF question

[John Novack]

I use:
dtmfmode=rfc2833
for my SIP devices, and have no problem
I do believe that is the suggested mode for use with Asterisk, and may 
solve your DTMF problem

John Novack


Jayson Smith wrote:
> Hi all,
> Got a puzzling one for you guys. I recently got three Sipura SPA-2000 units,
> and am using one, and like it. Just for the heck of it, I set
> dtmfmode=inband for both lines in sip.conf, and have both lines set for
> inband DTMF in the SPA. Still, calling one line from the other via my
> Asterisk system, when I hit a touchtone on either phone, the other gets a
> tiny blip of the original tone, then, once I let up on the button, a
> regenerated, fixed-duration touchtone is heard. In other words, as far as I
> can tell, inband DTMF isn't really working. My codec choice is Ulaw, so that
> shouldn't be a problem. Any thoughts?
> Thanks.
>
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