[asterisk-users] Digium PRI and Echo cancellation

[Steve Underwood]

Matt Watson wrote:
> I believe HPEC actually is the same algorithm (G.168) that the HW echo 
> cancel modules use.. the difference being that HPEC uses up CPU cycles 
> and its performance will be impacted on a system with higher CPU load, 
> whereas the HW modules have a dedicated DSP for it.
G.168 is not an algorithm. Its a test spec.

Steve