[asterisk-users] VoIP sound quality : highroad sound

Jonas Kellens jonas.kellens at telenet.be
Tue Nov 12 09:18:06 CST 2013


what could be causing the issue of poor sound quality ? Some calls, 
certainly not all of them, sound like if the caller is standing next to 
a very busy road with lots of cars passing.

To be clear : the person calling is not standing next to a highway.

But there seems to be a noise "on the line" of busy highroad that makes 
that the caller can not be understood.

What can be causing this kind of "poor quality" ?

Is it lack of resources on the Asterisk-server (codec translation ?) Is 
it lack of bandwith ? Is it a problem of CentOS (the underlying OS) ? Is 
it a physical problem of the server components (network interface ?) ?

Kind regards,
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