[Blink] DTMF not supported

Adrian Georgescu ag at ag-projects.com
Thu Jul 22 11:50:02 CEST 2010


You are the only person reporting this problem and the DTMF  
functionality is a widely used library used in many SIP comercial and  
open-source implementations on many problems.

I have a feeling that the problem you experience is with your provider  
rather than this library.

Adrian

On Jul 22, 2010, at 11:40 AM, Tomasz Muszynski wrote:

> pcma.
>
> Wiadomość napisana przez Adrian Georgescu w dniu 2010-07-22, o godz.  
> 00:29:
>
>> What codec do you use?
>>
>> "Tomasz Muszynski" <thom at union.waw.pl> wrote:
>>
>>> Ok, I've checked again and it seems that my provider recognizes  
>>> DTMF's from Blink (with and without Inband set), but with  
>>> problems. I have to press digit many times to be recognized -  
>>> sometimes it works quite ok, but most time it's not recognizing  
>>> any digits, even after hundred of key presses (that's why I was  
>>> thinking that it's not working).
>>>
>>> I'm not sure, but I think that DTMF signal may be to short. Is it  
>>> possible to make it longer? Ideally, according to classic phones,  
>>> DTMF signal should generated be as long as key is pressed.
>>>
>>> It's not remote problem, because from X-Lite it's working ok (it  
>>> sends DTMF signals as long as key is pressed).
>>>
>>> Regards,
>>> Tomek
>>>
>>> Wiadomość napisana przez Adrian Georgescu w dniu 2010-07-20, o  
>>> godz. 18:16:
>>>
>>>> DTMF using INFO method is obsolete. It will not likely be built  
>>>> into Blink.
>>>>
>>>> Regards,
>>>> Adrian
>>>>
>
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