[Freeswitch-users] Passthrough DTMF

[Noah Silverman]

Mike,

How do I do this?  (Look at the sdp?)  I know how to use ngrep for SIP  
traffic, but not sure where to go from here?

If you want to see the problem yourself, call Grandstream:  (626)  
638-9172    and try to navigate their IVR..

Thanks,

-N


On Oct 17, 2008, at 12:55 PM, Michael Jerris wrote:

> It is possible you have some providers who do not support rfc2833
> which is the default.  You would need to look at the sdp's exchanged
> to know for sure.
>
> Mike
>
> On Oct 17, 2008, at 3:20 PM, Noah Silverman wrote:
>
>> Hi,
>>
>> Weird situation.
>>
>> I am now running my office phone through freeswitch. It works great!
>>
>> Most of the companies that I call have an IVR that requires a
>> keypress:  "for sales press 1, for support press 2, etc."
>>
>> With most of these calls, my key presses pass the DTMF through
>> perfectly.
>>
>> The odd part is that some of the place I call, my DTMF presses have  
>> no
>> effect.  I can hear the "tone", but the receiving party does not seem
>> to catch it.  I tried repeating the call from a landline and it DID
>> receive my DTMF.  This appears to indicate that the way I'm passing
>> through DTMF works for MOST carriers/receivers, but not for all.
>>
>> Is there something I can set in the config to ensure that the DTMF
>> will pass through correctly in all circumstances?
>>
>> Thanks,
>>
>> -Noah
>>
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