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

[Raúl Alexis Betancor Santana]

DTMF could be 'negotiated', so seen 101 is not always true ... ;)

2017-07-07 15:41 GMT+01:00 Aqs Younas <aqsyounas at gmail.com>:

> 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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>
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
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>
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