[Freeswitch-users] What is rtp-autofix-timing

[Michael Collins]

On Sun, Jun 30, 2013 at 3:09 AM, Mino Haluz <mino.haluz at gmail.com> wrote:

> Hi,
>
> can somebody explain me what parameter rtp-autofix-timing does in fact? I
> had to set this parameter to false in order to avoid warnings with
> asynchronous ptime not supported error, but I cant get any information
> about this on wiki.
>

After looking in the source code it looks like this parameter is used to
set or disable the SCMF_AUTOFIX_TIMING media flag. From what I see in the
code, if rtp-autofix-timing is set to true then FreeSWITCH will make it
easier for you to communicate with devices that lie about their ptimes or
who want to send 30ms ptimes but should really be using 20ms ptimes, etc.
On latest git, at line 1337 (yes, really) in switch_core_media.c you'll see
it checking this flag (and a few others). Later in that if block you'll see
where the famous "Asynchronous PTIME not supported" message comes from.

Perhaps others can chime in on when to set rtp-autofix-timing to false as
I've personally never needed to do so.

-MC


>
> Thanks,
> M
>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
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