[Asterisk-Users] ZyXEL Router Terrible Voice Quality

[aza]

Hi,

Has anyone found a solution for the terrible voice quality 
when using the ZyXEL 2002 units?

I have a couple connecting into my asterisk box but the 
calls are so chopped up and broken that you can't have a 
conversation. The same router connected to FWD gets crystal 
clear calls.

FWD say they only support G711 which is the codec the calls 
were using to my asterisk box so it's not a codec issue. 
Apparently no other settings, apart from the account info 
were changed, from connecting to FWD to my asterisk box so 
that would rule out things like silence suppression.

Any ideas?

Aaron