Outbound Calls Drop After 1st Ring

Running Asterisk 1.4.9 with *Now GUI

Currently have 2 single port X100P FXO cards connected to PSTN

When dialing internal I experience no issues.
I can receive inbound calls from the analog ports.

When dialing out on the analog ports, the call will ring once on the receiving end then the call drops and the asterisk user gets dead silence followed by rapid busy.

zapata.conf

context=default
switchtype=national
signalling=fxo_ls
rxwink=300
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
rxgain=0.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1
immediate=no
signalling=fxs_ks
channel=1,2

Any help offered would be greatly appreciated.

wes

Hi
plz send your zap outbound call context or Dial()???
so we can say something