[asterisk-dev] Potential change to outgoing codec offers (new topic)

[Kevin P. Fleming]

----- Brian Candler <B.Candler at pobox.com> wrote:
> Ah, that's more sophisticated than I was thinking, which was simply
> that you
> wouldn't offer G.729 in the second INVITE when _no_ G.729 licences
> have been
> installed at all (i.e. the common out-of-the-box situation)

Hmm... hadn't considered that. One possible way to do that would be to filter the list of codecs we offer in the outgoing channel (not specific to SIP/RTP) to only the ones available on the incoming channel plus those we for which we have a 'codec-to-slin' translator registered for. We could then modify the G.729 codec to not register itself if there are no licenses available, and potentially even dynamically unregister/reregister itself as license availability changes (this is not a perfect solution because it doesn't allow 'reservation' of licenses).

It's pretty late in the game to make a change like this for Asterisk 1.4, but I suspect given the number of people that experience this problem every day it's likely the community would be happy if we did it.

Thoughts?

-- 
Kevin P. Fleming
Senior Software Engineer
Digium, Inc.