[trunkgroups]

[channels]
context=from-pstn
signalling=fxs_ks
rxwink=300 
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
; faxdetect=no
faxdetect=incoming
echotraining=800
rxgain=3.0
txgain=0.0
callgroup=1
pickupgroup=1
busydetect=yes
busycount=3
hanguponpolarityswitch=yes
immediate=no
relaxdtmf=yes

; [span_1]
signalling=pri_net
switchtype=national
pridialplan=national
prilocaldialplan=national
group=0
context=from-pstn
channel=1-23

; [span_2]
signalling=pri_net
switchtype=national
pridialplan=national
prilocaldialplan=national
group=1
context=from-pstn
channel=25-47