Dave,
QAs far as I remember it, it goes like this... if your inside phone is
*only* G711-alaw and your trunk (SIP or IAX) is *only G711-ulaw that at
session negotiation (call setup) Asterisk will woprk out that it has to
remain "in the loop" and transcode.
If you run-up asterisk and bother to watch the start-up debug messages then
it shows you the relative costs (in terms of CPU utilisation per call) for
the various transcoding between codecs. From recollection G.711-Alaw to
G.711-Ulaw is relatively inexpensive with a cost of "1" ...
Regards
Mike
----- Original Message -----
From: "David Thomas" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, August 14, 2006 8:57 PM
Subject: [asterisk-users] g.711 Codec Question
Greeting Everyone,
I don't have access to Asterisk box right now or I'd check this myself...
If my client phone uses g.711 (alaw) and my outbound trunk leaving
asterisk uses g.711 (ulaw), will asterisk have to transcode? If so is
the processing overhead much?
regards,
Dave
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