[Freeswitch-users] Use inherit_codec Codec on Re-invite

[Brian West]

Going to need to know what you're doing in the dialplan to really
understand whats going on.

/b


On Thu, Apr 20, 2017 at 7:14 AM, Colin Morelli <colin.morelli at gmail.com>
wrote:

> Hey all, back again
>
> Is there any option in FS to either:
>
>    - Keep inherit_codec working after the first invite
>    - Try to reduce codec changes by attempting to use the existing codec
>    on a re-invite
>
> Unless I'm missing something, FS seems to ignore both the current codec
> being used, and the inherit_codec setting on re-invites, so it defaults to
> essentially restarting codec negotiation. Ideally I could have it set to
> preserve inherit_codec if the call is still bridged (i.e. try to negotiate
> the B-leg's codec onto the A-leg if it's supported by the A-leg's new SDP).
> Consider the following call:
>
> INVITE (this is good and what I'd expect):
> A --- (opus, PCMU) ---> FS --- (opus, PCMU) ---> B
> A <-- (PCMU) --- FS <--- (PCMU) --- B
>
> Later Re-INVITE:
>
> A --- (opus, PCMU) ---> FS
> A <-- (opus) --- FS
>
> Ideally, I could get something like:
>
> Later Re-INVITE:
>
> A --- (opus, PCMU) ---> FS (checks codec used on B-leg of call, if
> inherit_codec=true)
> A <-- (PCMU) --- FS
>
> Thanks in advance,
> Colin
>
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*Brian West*
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