[channels]
context=default

usecallerid=yes
hidecallerid=no
callwaiting=no
usecallingpres=yes
callwaitingcallerid=no
threewaycalling=no
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
rxgain=0.0
txgain=0.0

immediate=no
callerid=asreceived
busydetect=no
busycount=5
callprogress=no
musiconhold=default
;jitterbuffers=4
jitterbuffers=8

pickupgroup=1
switchtype=national
#switchtype=ni1

signalling=pri_cpe
group=1
callgroup=1
channel => 1-23