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

[Cosmin Prund]

Hello everyone.

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? I really need to 
get this fix and I need to know the way to go. I don't want to throw 
money at a better card if the card is not the issue but if that's the 
only solution, I'll need to order the card ASAP!