[asterisk-users] dtmf from Cell phones

Andrew Joakimsen joakimsen at gmail.com
Fri Jan 18 17:28:43 CST 2008


How are you getting the calls from the PSTN and into your Asterisk server?

On Jan 18, 2008 5:41 PM, Dan Kirsche <dvinewine at gmail.com> wrote:
> when placing a call with a cellphone to the asterisk server, the dtmf
> recognition on asterisk is not working properly. It seems to duplicate the
> first digit so if I enter 123 on my cellphone, asterisk interprets it as
> 1123. I have messed around with relaxdtmf, & toneduration. Calling from a
> landline or a sip phone works pefectly with no problems.  I am using a
> digium tdm400 card with 2 fxo ports on asterisk 1.4.9.
>
> I tested the actual dtmf sound that asterisk is picking up by dialing from a
> cellphone and connecting to a sip phone attached to asterisk. when I hit a
> button I get a brief dtmf sound, then a pause and then the full dtmf sound.
>
>
> Anyone else seen this issue? Is this a bug or an incorrect configuration?
>
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