[Freeswitch-users] How do you determine if DTMFs received are in-band or out-of-band?

[Aqs Younas]

if you see "101 telephone-event" in SDP, you are getting DTMF as rfc2833.

On 7 July 2017 at 18:59, Mark Melling <mark.melling at savageminds.com> wrote:

> OK, Thanks
>
> So if the DTMF was received as SIP-INFO I assume I could switch on sip
> tracing (sofia global siptrace on) and I would presumably see the relevant
> SIP packets.
>
> But what can I do, check for in the logs, or check say in terms of a
> channel variable, that would enable me verify that a DTMF was being
> received as RFC2833 and not received in-band?
>
>
>
> On Fri, 7 Jul 2017 at 14:51 Raúl Alexis Betancor Santana <
> rbetancor at gmail.com> wrote:
>
>> Out of band allways means 'out of the audio RTP stream' ... could be
>> RFC2833 or could be SIP-INFO
>>
>> 2017-07-07 10:44 GMT+01:00 Mark Melling <mark.melling at savageminds.com>:
>>
>>> Hi,
>>>
>>> How can you determine if Freeswitch is receiving DTMFs in-band or
>>> out-of-band?
>>>
>>> I'm not entirely clear on terminology here, but is out-of-band the same
>>> as rfc 2833?
>>>
>>> Thanks
>>>
>>> Mark
>>>
>>>
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>>
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>>
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>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
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> http://confluence.freeswitch.org
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>
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