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[Linphone-developers] SDP payload negotiation

From: Vadim Lebedev
Subject: [Linphone-developers] SDP payload negotiation
Date: Thu, 18 Dec 2008 15:50:27 +0100
User-agent: Thunderbird (X11/20081125)


It seems that linphone expects that for a given rtp session a payload number for the outgoing and incoming streams
is same for each codec.

I see pretty often situation where mapping of dynamic payloads numbers to codecs is different for each side of connection.

Basically the offerer send an SDP saying what payloads it expected to receive and ANSWERE has a choice
1) adapt it's own mapping to the OFFERER
2) keep it's own mapping intact and simply reject  codecs it does not like

In any case the outgoing RTP stream should use payload numbers expected by the other side

Any plans to implement this?

Or i'm missing something at it already works?


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