[Asterisk-Users] best ISDN BRI solution for DID

[Brancaleoni Matteo]

Asterisk supports DID, chan capi too.
The echo issue happens when the other party
is on a analogue line, so some electrical echo is generated
by the 4 wire to 2 wire hybrid on local loops. If the
other party is on a digital line , no echo is present ;)

The best * isdn solution is chan capi. I've used it with
inexpensive avm passive cards, and with *very* expensive
eicon diva server cards (4BRI). the latter has onboard
dsp to get rid of echo problems (and these dsp are
supported onl by chan capi, not by i4l ).

Matteo.

Il sab, 2003-06-21 alle 04:41, Chad Sawyer ha scritto:
> I want to test asterisk with its DID functions on a smaller scale
> without the expense of a PRI.  I am in the US, and want the most
> reliable/stable, and feature rich solution that I can have.
>  
> What ISDN card would be reccommended?  
>  
> My clec switch operator says he can/will send DID info to my BRI's if
> I wish.  Can Asterisk, or one of its addons support this?
>  
> What BRI solution would be reccommended?  ISDN4Linux, chan_capi?  Any
> info is appreciated, I hope to get this right the first time without
> having to buy more hardware after the initial purchase.
>  
> Any advice from you guys with experience would be appreciated.
>  
> Chad