[Asterisk-Users] Echo problems polycom and x100p

[Eric Wieling]

Sean Garland wrote:

> I am having a persistent echo problem with my polycom sip IP 500 
> phones.  I have two x100p cards for the analog phone lines to come into 
> the * box.  The echo is very slight sometimes, to very noticeable.  
> Also, there is often some beeps in the background at random times.  The 
> beeps can also be heard on messages which leads me to believe it’s the 
> x100p cards or something…  For those of you that have a fully functional 
> system with polycom ip phones, what were the settings that worked the 
> best to cancel the beeps and echo?  Thanks a ton

In zconfig.h use the MARK3 echo can

In zapata.conf echocancel=256 echotraining=600 or 800