[asterisk-users] Payload size of 30ms

Fred Posner fred at teamforrest.com
Thu Sep 3 06:16:49 CDT 2009


On Sep 3, 2009, at 2:34 AM, Olle E. Johansson wrote:

>
> 2 sep 2009 kl. 22.40 skrev Fred Posner:
>
>> Here's the story...
>>
>> Nortel system set to use g711 @ 30ms payload ... Asterisk box would
>> need to communicate to that box @ 30 ms and another end point at 20
>> ms.
>>
>> I've seen discussions of setting this to a different size, but seems
>> to be limited to the entire codec and not on a per peer basis.
>>
>> Anyone have luck with this?
>>
>> The Asterisk can be 1.4 or 1.6.x... I've a preference for 1.6.0.x but
>> it's not set in stone :)
>
> You can set it per peer in sip.conf when you add the allow=
> option.
>
> There's a readme that documents the payload sizes acceptable for
> different codecs.
>
> From sip.conf.sample:
>
> ;allow=ilbc                     ; see doc/rtp-packetization for
> framing options
>
>
> /O
>
>
> ---
> * Olle E Johansson - oej at edvina.net
> * Open Unified communication - Asterisk, Kamailio, Sip-router projects

Fantastic, thank you!

Fred Posner



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