zapata.conf

[channels]
context=default
overlapdial=no
signalling=pri_cpe
switchtype=euroisdn
pridialplan=unknown
rxwink=125
echocancel=no
echocancelwhenbridged=yes
rxgain=0.0
txgain=0.9
immediate=yes
musiconhold=default
group=1
channel => 1-15,17-31
busydetect=no
group=2
channel => 32-46,48-62
busydetect=no

group=5
signalling=fxs_ks
channel=>63
context=default