[Asterisk-Users] digitnetworks card issues?

[Imran Akbar]

Hi,
    I've purchased two x100p clones, and when I try accessing a  line 
from asterisk with something like this:

exten => _1NXXNXXXXXX,1,Dial(Zap/2/{$EXTEN})
(is that only supposed to put you on channel 2 or actually dial the # 
for you?)

but I first hear noise, then a dial tone, but as soon as I start dialing 
numbers I get feedback and noise, and the call doesn't go through.

Any suggestions?

Thanks,
Imran