[Asterisk-Users] T1 Hardware Echo Can

[Rich Adamson]

> Rich Adamson wrote:
> 
> >[...]
> >If you install a T1 card and an external T1 mux (with fxo cards), the
> >echo can function already exists within the mux and/or cards. Don't
> >really need 'another' external echo can box unless you actually 
> >purchased a T1 mux that didn't have echo can in the first place (and
> >they do exist). 
> >  
> >
> [...]
> 
> T1 muxes do not normally contain an echo canceller. It is a special item 
> if it actually *does* contain an echo canceller.

Ops, I don't use mux's but I know the echo can function has been
around for years in some telco grade mux's. Since I've not shopped 
for any in the last several years, didn't realize they were optional 
'features' for some vendors.

Rich