[Asterisk-Users] Any Software Echo Cancellation in Asterisk?

[Jeb Campbell]

Matthew Boehm wrote:
>     For $2500 you can buy the TE411P which is a 4 port T1/PRI card that has
> onboard echo cancellation. Or you can send in your TE410P and $1000 and they
> will upgrade it for you.

Do you know where we can read up on this?  I couldn't find any info on 
digium's site.  I'm very interested in this, and even a timeframe for 
availability would be great news.

Jeb Campbell
jebc at c4solutions.net