[Asterisk-Users] Echo cancel: chan_misdn vs bristuff? HFC card vsexpensive card?

[Chris Bagnall]

> I've got a HFC ISDN card that I'm using with chan_misdn and 
> it basically behaves like crap. Echo is waaay worst then echo 
> I get TDM400 card, sound is "choppy" (there other side is 
> allays complaining about sound
> interruptions) and to top it all it detects fake DTMF's all the time.
> Is this a chan_misdn problem or is it a card problem? 

We have a number of sites running from 1-3 HFC-based cards in a machine, and
none of them have any significant echo at all. All ours are running with
zaphfc (part of the bristuff package). Might be worth giving that a try.

Regards,

Chris
-- 
C.M. Bagnall, Director, Minotaur I.T. Limited
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