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

[Mark Melling]

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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