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

[Cosmin Prund]

Chris Bagnall wrote:
>> 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
>   
Thanks for the info, I'm compiling bristuff 0.3 right now, hope it 
works. I'll need to wait for the compile to finish to see how it works 
with my kernel (as my kernel has been patched for mISDN and I do not 
know how that plays with bristuff).