Someone

loadzone=us
defaultzone=us

span=1,1,0,esf,b8zs
bchan=1-23
dchan=24

span=2,1,0,esf,b8zs
e&m=25-48

span=3,1,0,esf,b8zs
bchan=49-71
dchan=72

span=4,0,0,esf,b8zs
bchan=73-95
dchan=96


-----------------------------------------------

[trunkgroups]

trunkgroup=>1,72

spanmap => 3,1,1
spanmap => 4,1,2

[channels]
;--------Port 1 - ACC (PRI)--------

switchtype=national
signalling=pri_cpe
pridialplan=unknown
prilocaldialplan=unknown
usecallerid=yes
callerid=asreceived
echocancel=yes
echocancelwhenbridged=yes
echotraining=yes
rxgain=0.0
txgain=0.0
musiconhold=native
language=en
context=Evolution_IVR

group = 1
channel => 1-23

;--------Port 2 - Global Crossing (T1)--------

switchtype=national
signalling=em_w
usecallerid=yes
callerid=asreceived
echocancel=yes
rxgain=0.0
txgain=0.0
musiconhold=native
language=en
context=Evolution_Global_Crossing

group = 2
channel => 25-48


;--------------port 3 - Global Crossing (PRI)---------------
switchtype=national
signalling=pri_cpe
pridialplan=unknown
prilocaldialplan=unknown
usecallerid=yes
callerid=asreceived
echocancel=yes
echocancelwhenbridged=yes
echotraining=yes
rxgain=0.0
txgain=0.0
musiconhold=native
language=en
context=blah

group = 3
channel => 49-71,73-95