Interesting patch for a strange case... BTW, the "broken" client is the one that generates local ringback when there is a 180 w/ SDP. Either way this belongs on Jira: http://jira.freeswitch.org/ On Sun, Jun 26, 2011 at 4:07 AM, Artur Cichocki <acichocki@supermedia.pl> wrote:

Hi All.

I didn't get any response from fs-dev moderator for one month so it goes here.

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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