[asterisk-users] Bad Echo between SIP calls

[Eric "ManxPower" Wieling]

Deepak Naidu wrote:
> Steve I understand your theory.  We have Poycom 501 phones.  Prior upgrading to PRI we were till date using 4 analog lines connected with TDM card from digium & no echo for pure SIP to SIP lines.
>    
>   Now I have TE212P which had onboard echo cancellor.
>    
>   I am trying make myself clear before I blame on any network.  B'cos for sure we have a spegati of networks & no QoS.  Also the intresting thing is if I call from one extension to other dialing the main line & then extension the call is crystal clear.  but when dialing a direct extension its a hell of echo.

Make SURE you have the handset plugged into the handset port of the 
phone, not the headset port of the phone.