[Asterisk-Users] Tellabs Echo Canceller

[Kris Boutilier]

The 255D shelf supports 16 257X cards, at 24 channels per card, with a variety of signalling modes supported per channel. Fully populated the shelf will echo cancel 384 channels concurrently. It's carrier grade hardware that's now obsolete, but quite good given the average prices for it on eBay - about us$0.50/channel. Its far more economical than the hair replacement treatments needed after trying to get zaptel/mec2 to behave... :-)

Hope that helps.

Kris Boutilier
Information Services Coordinator
Sunshine Coast Regional District

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Michael D
> Schelin
> Sent: Friday, June 24, 2005 2:35 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] Tellabs Echo Canceller
> 
> 
> That sure sounds like it's Analog trunks to me. I believe you 
> will need a channel bank to go from T1 to 24 ds0's and another to go 
> back to T1. I could be wrong but I don't think so. I don't think that's 
> what you were really looking for as far as an echo canceller.
> 
> 
> ewr at erols.com wrote:
> 
> > I am getting ready to experiment with the Tellabs 2752 echo canceller.  
> > I have a 255D shelf (and power supply), but am struggling a little on 
> > connecting the echo canceller to a PRI.
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