[asterisk-users] Voice quality is bad from one side and good from another side

[Alex Balashov]

bilal ghayyad wrote:

> Hi all;
> 
> I have two asterisk boxes installed in two separated
> sites, the internet bandwidth between them is very
> good and I am using G729 codec to communicate with
> them and IAX.

Try playing around with the adaptive / fixed jitter buffer settings for 
IAX2.  Also, if it's consistently a problem found on one side, consider 
any resource consumption and/or processing issues that may be occuring 
on the sending side that is creating the problem.

Is this "very good bandwidth" just good bandwidth, or also good latency, 
by which we really mean _consistent_ latency?  Or is it highly bursty 
and variable?  This will create jitter and break voice, even if the 
amount of potential throughput is very high.  Consider satellite links 
if you need a good example.

-- 
Alex Balashov
Evariste Systems
Web    : http://www.evaristesys.com/
Tel    : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
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