[Serusers] codec question

[Innocent Evil]

Thanks for answering, Andy.

So the key point is, both end need to have same codec supported. It doesn't
matter how many  system/server/broker are between those two end, right?

Thanks again..






> -----Original Message-----
> From: andreas.granig at inode.info
> Sent: Mon, 01 Aug 2005 20:01:19 +0200
> To: innocent.evil at inbox.com
> Subject: Re: [Serusers] codec question
>
> Innocent Evil wrote:
> > IP Phone       --> SIP Server   -->    Asterisk -->    (Voice Mailbox)
> >
> > (G723.1, G729)   ->  (GSM)      ->    (GSM, G729)      GSM coded file
>
> The SIP server (if it's a proxy like SER) doesn't matter for codec
> negotiation, because it just does the SIP signalling.
>
> So if your phone supports G.723.1 and G.729, then Asterisk has to
> support one of these (for G.729 you need a license from Digium, G.723.1
> is only supported in pass-thru-mode AFAIK, so not usabe here).
>
> Andy