[Asterisk-Users] Random Echo

[TC]

> I have a user that complains of echo for the duration of a ZAP-SIP call.
> I have experienced it too, but it only happens randomly.
> 
> Is there any way to debug the echo cancellation other than doing a zap
> show channel X?
> 
> I am using a T100P --> Adtran 750.
> 
> Has anyone done anything to successfully stop echo with the Adtran 750?

Yup inline T1 hardware echo cans :)
I am using some older 64ms T1 tellabs 2572's, stops echo in its tracks