[asterisk-users] Best Codec

[Ricardo Martins]

We use G.729. Consumes only 35kbps of bandwidth and has a level 4 (from 
0 to 5) of voice quality. We still have very poor public data networks 
here in Brazil that makes G.711 a very high bandwith consunption codec 
for us.

Another point that is good for G.729 is that we can bridge calls from 
customers to SIP-terminators (most/all of them uses g729)  without the 
need to transcode and licence the channels for asterisk (passthrough).

Rgds, Ricardo Martins.


Davis Sylvester III escreveu:
> We are evaluating starting a small VoIP consumer based platform.
> What is the best codec to use with customers using primarily DSL as 
> internet connectivity?
>
> I know that g729 is the king-all, but I want to know what the rest of 
> the professional are using out there.  g729 has a cost involved, so 
> does the cost really offset the performance?  Or is it better to go 
> with g711 to start off?
>
> We plan on using Linksys SPA921 as the primary phone and asterisk open 
> source as the softswitch.  Any information you can pass would be 
> appreciated.
>
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