X100P
From KlavoWiki
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