[asterisk-users] Connection dropped after 15 minutes with Deutsche Telekom

Max Grobecker max.grobecker at ml.grobecker.info
Sun Jan 8 15:40:53 CST 2017


I figured out that this happens, when Asterisk ignores Session-Timers requests.
So I added the following to my DTAG peer configuration and eleminated the problem - and can use g722 on the DTAG network :-)



Am 08.01.2017 um 19:47 schrieb Luca Bertoncello:
> Luca Bertoncello <lucabert at lucabert.de> schrieb:
> Hi again!
>> The problem: after 15 minutes will the call dropped, but only if the call is
>> to another nation! If I just call another phone in Germany, I can speak
>> longer than 15 minutes...
> After a long work, and with the huge help of Michael Maier, I found the
> problem...
> I write here the description of the problem and my solution, maybe can this
> help someone other having the same problem...
> The problem: after a successfully INVITE with the complete list of all
> supported Codecs, I receive about 15 minutes after call start, another INVITE
> (re-INVITE) from Telekom with __JUST__ one Codec: the one used by the call
> (currently: alaw).
> My Asterisk sends an "200 OK" with the same Codec and Telekom apparently has
> a problem with my answer, since the connection will be closed...
> __MY__ solution: I configured Asterisk to use just __ONE__ Codec (alaw) for
> the communication with Deutsche Telekom.
> Now it seems to work, then I can call Italy and can speak longer than 15
> minutes.
> I'm really puzzled and can't understand why Telekom has problem with my
> answer __JUST__ on calls outside Germany, but that is...
> So, if someone other has the same problem, can try with my solution.
> Hope to help!
> Regards
> Luca Bertoncello
> (lucabert at lucabert.de)

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