[Asterisk-Users] Where can i get the g.723 codec?

[Andrew Gillham]

Steve Underwood wrote:

> Hi Thomas,
>
> Unless you have a *very* specific need to use G.723.1 for 
> compatibility with someone else, forget it. It is pretty much an 
> obsolete product. Licencing is also a pain, as there is not patent 
> pool for it. G.729 is expensive to licence, but at least it is 
> relatively strightforward. If you think you will save some bits using 
> G.723.1 instead of G.729, think again. The saving is minute, because 
> of the huge overheads IP imposes.
>
> Regards,
> Steve

I was measuring about 32-36 Kbit/s for a G.729 call, and around 
20-22Kbit/s for G.723.
This is at the DSL router, so it includes all of the overhead.

If you're on a dialup modem, that can make or break the call.

-Andrew