X100P as first zaptel device

/etc/zaptel.conf:
fxsks=1

/etc/asterisk/zapata.conf:
echocancel=yes
usecallerid=yes
context=incoming
signalling=fxs_ks
group = 2
channel => 1

cat /proc/zaptel/1 output:
Span 1: WCFXO/0 "Wildcard X100P Board 1"
1 WCFXO/0/0 FXSKS