Zaptel.conf

span=1,1,0,esf,b8zs
e&m=1-24
span=2,2,0,esf,b8zs
e&m=25-48
span=3,2,0,esf,b8zs
e&m=49-72
span=4,2,0,esf,b8zs
e&m=73-96
loadzone = us
defaultzone=us
~
Zapata.conf

[channels]

group=1
usecallerid=yes
echocancel=yes
echocancelwhenbridged=yes
context=pri
rxwink = 300
signalling=em_w
channel => 1-96
~
~