Mine

[channels]

switchtype=euroisdn
pridialplan=unknown
prilocaldialplan=unknown
context=default
signalling=pri_cpe
echocancel=no
echocancelwhenbridged=no
echotraining=no
rxgain=0
txgain=0
group=1
channel => 1-15,17-31

switchtype=euroisdn
context=default
signalling=pri_net
overlapdial=yesechocancelwhenbridged=no
echotraining=no
echotraining
rxgain=0
txgain=0
group=2
channel => 32-46,48-62


pridialplan=local
prilocaldialplan=local
echocancel=no