Hi,
We are currently experiencing a problem during SDP negotiation.
The problem is as follows:
1. Asterisk sends our application an INVITE with SDP media indicating
(in that order): ULAW, ALAW, GSM EFR
2. Our application decides to use ALAW for the originating media
stream but would like Asterisk to be allowed to use ULAW for asterisk
originated audio.
So, our application invokes nua_respond specifying the following
codecs (in that order): ALAW, ULAW.
3. Despite the above, Sofia seems to take the decision to respond with
a single codec (ULAW) in the 200 OK.
As a result of the above, our application is sending an ALAW stream to
Asterisk but only ULAW is specified in the 200 OK.
Asterisk drops that stream because of this.
Is it possible to configure sofia to pick a selection of codecs based
on the SDP offered by the network and the SDP specified in
nua_respond, rather than picking a single codec?
Many thanks.
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