To configure the X100P; in the appropriate headdings

Asterisk 1.6.x

/etc/dahdi/system.conf

fxsks=1

channels=1

/etc/asterisk/chan_dahdi.conf

signalling=fxs_ks
group=1
channel => 1

Asterisk 1.4.x

/etc/zaptel.conf

fxsks=1

channels=1

/etc/asterisk/zapata.conf

signalling=fxs_ks
group=1
channel => 1