[asterisk-dev] AstriDevCon Recap - Call Setup Negotiation

[Nic Bellamy]

Russell Bryant wrote:
> 2.c) If we offer G.729 for a call, even if it is not the preferred 
> format, a license needs to be reserved, because the other side could 
> start sending it at any time.
Instead of thinking of this as "reserve a license", perhaps it should be 
done more generically as "reserve a transcoder instance".

This would allow, in future, doing things like:

    * The G.729 license case above
    * Only offering codecs that are only available from a TC400 board if
      there are spare instances available
    * Dynamically limiting the usage of codecs with a high CPU cost -
      "sorry, no CPU available for doing any more Speex right now, try
      GSM..."

This way, there are advantages to everybody, not just to that one binary 
blob :-)

Cheers,
    Nic.

-- 
Nic Bellamy,
Head Of Engineering, Vadacom Ltd - http://www.vadacom.co.nz/

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