[asterisk-users] When to use Echo Cancellation cards?

[Wireless]

I've been running Digium TDM400P with 2 FXO and now I run a Sangoma A200 with 2 FXO and no hwec, both cards have suffered echo, one of my lines is much worse than the other.  I messed about for a year using the software EC in Zaptel and whilst I could remove the echo on one line the other would always take 10-20secs to sort its self out and somtimes would never kill the echo.  This situation never ever passed the wife test (that is seriouse business).  I was about to bite the bullet and get a Sagoma A200D with HWEC when I discoved the new Digium software EC software called HPEC, it works a treat and at $10 per channel it is much better then spending loads of $$$ on a HWEC.  I run it on a P3 650Mhz that seems to have no problem at all keeping up.

hth

Harvey
  ----- Original Message ----- 
  From: Zeeshan Zakaria 
  To: Asterisk Users Mailing List - Non-Commercial Discussion 
  Sent: Friday, March 09, 2007 7:29 AM
  Subject: [asterisk-users] When to use Echo Cancellation cards?


  In what scenarios non-Echo Cancellation cards (T1/E1/FXO) should be used ? Don't all good and professional installations need echo cancellation cards? Are there people out there with non-Echo Cancellation cards for T1 or 8 FXO ports and who really don't have any echo issues and they are running serious businesses? 

  -- 
  Zeeshan A Zakaria 
  -- 
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