[channels]
context=from-internal
usecallerid=yes
hidecallerid=no
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
echotraining=yes
rxgain=0.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1
immediate=no
musiconhold=default
relaxdtmf=yes

protocolclass=mfcr2
protocolvariant=br,10,10
protocolend=cpe
group = 1
channel => 1-15
channel => 17-31