zaptel.conf
span=1,1,0,esf,b8zs
span=2,2,0,esf,b8zs
span=3,0,0,esf,b8zs
#span=4,0,0,esf,b8zs
e&m=1-48
fxoks=49-72
fxsks=73-76
#
loadzone = us
defaultzone=us

zapata.conf
[trunkgroups]

[channels]

signalling=em_w
group=1
context=in-t1
rxwink=250
threewaycalling=yes
transfer=yes
channel => 1-48

signalling=fxo_ks
transfer=yes
context=in-fxs
group=5
callerid => 1101
channel =>49
callerid => 1102
channel =>50
callerid => 1103
channel =>51
callerid => 1104
channel =>52
callerid => 1105
channel =>53
callerid => 1106
channel =>54
callerid => 1107
channel =>55
callerid => 1108
channel =>56
callerid => 1109
channel =>57
callerid => 1110
channel =>58
callerid => 1111
channel =>59
callerid => 1112
channel =>60
callerid => 1113
channel =>61
callerid => 1114
channel =>62
callerid => 1115
channel =>63
callerid => 1116
channel =>64
callerid => 1117
channel =>65
callerid => 1118
channel =>66
callerid => 1119
channel =>67
callerid => 1120
channel =>68
callerid => 1121
channel =>69
callerid => 1122
channel =>70
callerid => 1123
channel =>71
callerid => 1124
channel =>72

signalling=fxs_ks
group=2
context=in-local
echocancel=yes
echocancelwhenbridged=yes
echotaining=yes
rxgain=0.0
txgain=0.0
immediate=yes
threewaycalling=yes
transfer=yes
channel => 73-76