[channels]
context=local
switchtype=national
signalling=fxs_ks
usecallerid=yes
hidecallerid=no
callwaiting=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
relaxdtmf=yes
rxgain=-2.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1
immediate=no

callerid=asreceived
busydetect=yes
callprogress=yes
musiconhold=default
channel => 2