[channels]
language=en
usecallerid=yes
callerid=asreceived
signalling=pri_cpe ; PRI Signalling, CPE Side
;signalling=pri_net ; PRI Signalling, Network Side
switchtype=national
;national
;international
;private
;unknown
;local
pridialplan=national ;called party number
prilocaldialplan=national ; calling party number
echocancel=64
echocancelwhenbridged=yes
busydetect=no ; yes for analog trunk lines.
priindication=outofband ; accepted values: inband/outofband
callprogress=no ; if yes monitors state of calls, experimental.
rxgain=1.0
txgain=1.0
group=3
context=pri_in
channel => 1-23