[Freeswitch-users] send dtmf on one leg bridge

Wed Dec 15 07:16:39 MSK 2010

ok understood, the DTMF seems to be ok in RTP flow,
but FS doesn't react. maybe the RTP packet is not clean...

----- Original Message ----- 
From: "Mathieu Rene" <mrene_lists at avgs.ca>
To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
Sent: Tuesday, December 14, 2010 11:04 PM
Subject: Re: [Freeswitch-users] send dtmf on one leg bridge

>I suggest you read the SIP RFC too. The SDP isn't sent at every DTMF digit, 
>it is only exchanged in an offer-answer scenario (e.g.: INVITE/18x/200).
>
> Mathieu Rene
> Avant-Garde Solutions Inc
> Office: + 1 (514) 664-1044 x100
> Cell: +1 (514) 664-1044 x200
> mrene at avgs.ca
>
>
>
>
> On 2010-12-14, at 9:42 PM, Madovsky wrote:
>
>> if I send these sdp value at every dtmf send
>> is FS can interpret it or do I need to set it when session is done ?
>>
>>
>> ----- Original Message ----- 
>> From: "Mathieu Rene" <mrene_lists at avgs.ca>
>> To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
>> Sent: Tuesday, December 14, 2010 9:29 PM
>> Subject: Re: [Freeswitch-users] send dtmf on one leg bridge
>>
>>
>>> Indeed it is.
>>>
>>> http://www.faqs.org/rfcs/rfc2833.html
>>>
>>> The RTP payload format is designated as "telephone-event", the MIME
>>>  type as "audio/telephone-event". The default timestamp rate is 8000
>>>  Hz, but other rates may be defined. In accordance with current
>>>  practice, this payload format does not have a static payload type
>>>  number, but uses a RTP payload type number established dynamically
>>>  and out-of-band.
>>>
>>>
>>> Mathieu Rene
>>> Avant-Garde Solutions Inc
>>> Office: + 1 (514) 664-1044 x100
>>> Cell: +1 (514) 664-1044 x200
>>> mrene at avgs.ca
>>>
>>>
>>>
>>>
>>> On 2010-12-14, at 9:27 PM, Madovsky wrote:
>>>
>>>> is it need any specific sdp for rfc2833 ?
>>>>
>>>> variable_switch_r_sdp: [v=0
>>>> o=- 1292379777 1292379777 IN IP4 67.205.XX.XX
>>>> s=-
>>>> c=IN IP4 67.205.XX.XX
>>>> t=0 0
>>>> m=audio 46566 RTP/AVP 96
>>>> a=rtpmap:96 speex/16000
>>>> m=video 53492 RTP/AVP 97
>>>> ]
>>>>
>>>> seems missing
>>>> a=rtpmap:101 telephone-event/8000
>>>> a=fmtp:101 0-16
>>>>
>>>> does dtmf need it ?
>>>>
>>>> Thanks
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>> From: Madovsky
>>>> To: FreeSWITCH Users Help
>>>> Sent: Tuesday, December 14, 2010 8:09 PM
>>>> Subject: Re: [Freeswitch-users] send dtmf on one leg bridge
>>>>
>>>> Ok I will try. Bingo Brian,
>>>> the rfc2833 RTP payload is not interpreted by FS
>>>> I have to debug it.
>>>> ----- Original Message -----
>>>> From: Michael Collins
>>>> To: FreeSWITCH Users Help
>>>> Sent: Tuesday, December 14, 2010 3:32 AM
>>>> Subject: Re: [Freeswitch-users] send dtmf on one leg bridge
>>>>
>>>> Per my other message you may also just need to use uuid_recv_dtmf. Try 
>>>> it
>>>> and see.
>>>> -MC
>>>>
>>>> On Mon, Dec 13, 2010 at 11:12 PM, Steven Ayre <steveayre at gmail.com>
>>>> wrote:
>>>> Perhaps the UUID variable doesn't contain the correct value though...
>>>>
>>>> Try uuid_send_dtmf using the known UUID yourself. That'll show you
>>>> whether uuid_send_dtmf works and the problem is in the expand api, or
>>>> whether it's uuid_send_dtmf that's having a problem.
>>>>
>>>> -Steve
>>>>
>>>>
>>>> On 14 December 2010 01:18, Madovsky <infos at madovsky.org> wrote:
>>>>> because I need to use variables inside the api request
>>>>> is it make a difference ?
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Steven Ayre" <steveayre at gmail.com>
>>>>> To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
>>>>> Sent: Monday, December 13, 2010 7:47 PM
>>>>> Subject: Re: [Freeswitch-users] send dtmf on one leg bridge
>>>>>
>>>>>
>>>>>> What about  uuid_send_dtmf directly? i.e. not through expand.
>>>>>>
>>>>>> -Steve
>>>>>>
>>>>>>
>>>>>> On 13 December 2010 20:04, Madovsky <infos at madovsky.org> wrote:
>>>>>>> yes,
>>>>>>>
>>>>>>> I tried expand uuid_send_dtmf [uuid] 12345 at 120 once
>>>>>>> answer done and ivr asks pin number but the CLI
>>>>>>> says "ERR- no reply".
>>>>>>>
>>>>>>> ----- Original Message -----
>>>>>>> From: Michael Collins
>>>>>>> To: FreeSWITCH Users Help
>>>>>>> Sent: Monday, December 13, 2010 2:50 PM
>>>>>>> Subject: Re: [Freeswitch-users] send dtmf on one leg bridge
>>>>>>> Have you tried uuid_send_dtmf?
>>>>>>> -MC
>>>>>>>
>>>>>>> On Sun, Dec 12, 2010 at 12:30 PM, Madovsky <infos at madovsky.org>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> Is it possible to send dtfmf via
>>>>>>>> send_dtmf from CLI on a one leg bridge ?
>>>>>>>> it's for enter a pin conference and I can't use
>>>>>>>> any RFC on my sip phone.
>>>>>>>>
>>>>>>>> Thanks
>>>>>>>>
>>>>>>>> Franck
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