In my application I need 2 kinds of SDP manipulation in bypass media mode and late negotiation turned on: 1) Do not send out no-sense for PSTN codecs on leg B like wideband codecs, ilbc or speex. I need to filter out all codecs except for PCMU, PCMA,G729 and GSM. 2) Change codec order on B-leg, some PSTN carriers (like icall) behave wildly if G729 is first codec, I need to change A-leg codec order "18 0" to "0 18". On Tuesday 27 July 2010, Anthony Minessale wrote:
You really never should be messing with the sdp because you can cause a violation in the SOA policy. The negotiation is between the 2 endpoints so if you modify A's sdp it could confuse it when you reply back with B's sdp which was created under false pretenses.
On Mon, Jul 26, 2010 at 7:18 PM, Kristian Kielhofner <kris@kriskinc.com>wrote:
I understand why this limitation is in place but I've always wondered if it's a /hard/ limitation that has to be there...
What about a channel var/sofia param for bypass_media/proxy_media that would allow codec_string, ep_codec_string, absolute_codec_string and friends to work?
Is this worthy of a bounty? I think it would be much nicer than resorting to direct SDP manipulation. For those of us using FreeSWITCH as a signaling only SBC, a VERY nice thing to have!
Let me know.
On Mon, Jul 26, 2010 at 7:58 PM, Anthony Minessale
<anthony.minessale@gmail.com> wrote:
ya
-- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com
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