[asterisk-users] DTMF behavior in asterisk 12 with PJSIP

[Yaron Nachum]

Hello Mathew,
Thank you for the reply.

I will open an issue and send debug information.

Can you explain more about the workaround? A reference to the documentation
would be fine.


Thanks again,
Yaron.

On Sun, Oct 26, 2014 at 10:46 PM, Matthew Jordan <mjordan at digium.com> wrote:

>
>
> On Sun, Oct 26, 2014 at 3:22 AM, Yaron Nachum <nachum.yaron at gmail.com>
> wrote:
>
>> Hello all,
>> We have recently upgraded some of our services to Asterisk 12 with PJSIP.
>> We have 2 issues related to DTMF:
>> 1. in the regular SIP channel we had DTMF auto mode, which adapted the
>> DTMF settings according to the incoming INVITE - RFC2833 or inband. The is
>> no such settings in PJSIP. Do you know is there is a plan to develop it?
>>
>
> No one that I'm aware of is currently working on that.
>
> As Asterisk is an open source project, if having the 'auto' feature added
> to the PJSIP stack is something you're interested in, you should consider
> writing a patch for the project [1].
>
> [1] https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process
>
>
>> 2. When we setup 2 peers, one RFC4733 and the other inband, the asterisk
>> does not transcode the DTMF signals, therefore DTMF is not working. It used
>> to work on release 11. This is really bad. Do you know of a solution to
>> this issue? Maybe some settings?
>>
>>
> That actually is a bug. You are most likely ending up in a native packet
> to packet bridge (or a native remote bridge), which does not decode the RTP
> stream. Hence, the inband DTMF or RFC 2833 DTMF is not being decoded and is
> being passed to the other side. Please do open an issue for that [2]. Make
> sure you provide a full DEBUG log, as that will illustrate what is actually
> occurring.
>
> Note that you can work around that issue by adding a feature flag to
> whatever application caused the bridging to occur.
>
> [2] https://issues.asterisk.org/jira
>
> --
> Matthew Jordan
> Digium, Inc. | Engineering Manager
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> Check us out at: http://digium.com & http://asterisk.org
>
> --
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