[asterisk-users] (no subject)

[Dave Fullerton]

Todd- Asterisk wrote:
> Hello everyone! I'm planning on setting up a new system shortly and 
> can't pick the right card...  We will have 2 or 3 lines coming in and 7 
> extensions (GXP2k's).  Should I just get 2 or 3 X100P cards?  Or do I 
> need the Sangoma A20200 or even the A20200D (Echo cancelation)...  I was 
> thinking I'd use a Dell 2.0 GHz machine as the server...  If anyone has 
> suggestions as to the benifits/problems of each card choice, I'd love to 
> hear it.
>  thanks
>   Todd

In my humble opinion, X100P's are only good for one line (and barely 
that). They don't work as well as the TDM400s do, and having more than 
one X100 card in a system is an unnecessary bombardment of interrupts. 
For a 2-3 line setup I would strongly suggest looking at a TDM400 or the 
Sangoma A200. I have used both and have been happy with both. I use a 
TDM400 at home and have managed to remove almost all echo with the use 
of fxotune and adjusting the gains. I'm using a Sangoma A200 with the 
on-board echo canceler for a phone system at work and have been very 
happy with it. The only complaint of echo on this system is on an 
occasional incoming call and only for the first second or two.

If money is tight and you are willing to tune echo out of your system by 
hand, use the TDM400. If you are willing to spend the cash and don't 
want to have to deal with constant tweaking to remove echo, get the 
A200d (and make sure you download the latest drivers from sangoma).

-Dave