[Freeswitch-dev] Removing SDP from 183/180

Anthony Minessale anthony.minessale at gmail.com
Mon Jun 27 23:58:24 MSD 2011


this functionality is already implemented with {ignore_early_media=ring_ready}


On Fri, May 27, 2011 at 3:12 AM, Artur Cichocki <acichocki at supermedia.pl> wrote:
> Hi All.
>
> I just wrote this patch. It ads 'sip_remove_183sdp' flag, which removes SDP
> from 183 and returns 180 (it also removes SDP from 180, because FS
> changes 180 with SDP to 183).
>
> To turn it on add {sip_remove_183sdp=true} to the dial string.
>
> Why? Because in some situations we don't want to transfer voice between
> clients before a real call establishment (and yes, I know that early media
> in this stage is allowed by RFC).
>
> Real case:
> Try to setup two clients, one of them using Sipdroid. Turn on bypass mode.
> Try to call to Sipdroid client, you will hear caller voice together with the
> ring (because Sipdroid sends 180 with SDP, and puts voice on the speaker).
>
> Patch attached.
>
> --
> Artur Cichocki
>
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>



-- 
Anthony Minessale II

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