/etc/zaptel.conf

span=1,1,0,ccs,hdb3,crc4
bchan=1-15
dchan=16
bchan=17-31

span=2,1,0,ccs,hdb3,crc4
bchan=32-46
dchan=47
bchan=48-62

span=3,1,0,ccs,hdb3,crc4
bchan=63-77
dchan=78
bchan=79-93

span=4,1,0,ccs,hdb3,crc4
bchan=94-108
dchan=109
bchan=110-124

fxsks=125
fxsks=126
fxsks=127
fxsks=128

# Global data

loadzone        = us
defaultzone     = us

/etc/asterisk/zapata-channels.conf
group = 1
switchtype = euroisdn
signalling = pri_cpe
context = from-zaptel
channel => 1-15,17-31

group = 2
switchtype = euroisdn
signalling = pri_cpe
context = from-zaptel
channel => 32-46,48-62

group = 3
switchtype = euroisdn
signalling = pri_cpe
context = from-zaptel
channel => 63-77,79-93

group = 4
switchtype = euroisdn
signalling = pri_cpe
context = from-zaptel
channel => 94-108,110-124

signalling=fxs_ks
callerid=asreceived
group=0
context=from-zaptel
channel => 125
; context=default

signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 126
context=default

signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 127
context=default

signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 128
context=default