faui7u:/usr/src/zaptel# cat /etc/zaptel.conf 
fxoks=1
fxsks=4
loadzone=nl
defaultzone=nl

faui7u:/usr/src/zaptel# cat /etc/asterisk/zapata.conf
[channels]
context=default
switchtype=national
signalling=fxo_ks
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
echocancel=yes
echocancelwhenbridged=yes
echotraining=yes
rxgain=10.0
txgain=10.0
group=1
callgroup=1
pickupgroup=1
busydetect=no
immediate=yes
channel => 1

context=default
signalling=fxs_ks
rxgain=0.0
txgain=0.0
channel => 4