[Asterisk-Users] LiveVoip DTMF Issues

[Michael Graves]

On Tue, 25 Jan 2005 08:24:36 -0500, Mark Eissler wrote:

>My assumption is that most folks trunking through Voicepulse Connect 
>must be using SIP since I haven't seen this problem mentioned before. 
>So my conclusion is that DTMF and SIP and VPC work fine together BUT 
>then you don't get to benefit from the efficiency of IAX.
>
>So the million dollar question is: Does IAX have a problem with DTMF or 
>is it just certain carriers that have problems with DTMF?
>
>-mark
>
>On Jan 24, 2005, at 6:50 PM, Juan Cardenas wrote:
>
>> I have experience that problem on numerous ocassions with Voicepulse 
>> Connect service using IAX for inbound service.
>> DMTF times out or fails to read certain digits(tones).
>> When had it configured to use SIP for incoming calls, it never failed.
 

A while back when I used VPC I had not trouble with DTMF. I even used
it over IAX for DISA, which requires DTMF for authentication. You just
need to set the dtmfmode correctly, which varies by codec.

Voipjet had a problem with dtmf right after they launched, but that was
resolved quickly.

Michael

--
Michael Graves                           mgraves at pixelpower.com
Sr. Product Specialist                          www.pixelpower.com
Pixel Power Inc.                                 mgraves at mstvp.com

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