渲染后的文本正文[channels]
context=incoming-test
switchtype=national
signalling=fxs_ks
echocancel=yes
echocancelwhenbridged=yes
usecallerid=no
callerid="Sample Zap Fax Machine" <8021>
callwaiting=no
callwaitingcallerid=no
threewaycalling=no
transfer=no
relaxdtmf=yes
rxgain=1.5
txgain=1.5
group=1
immediate=no
musiconhold=
;faxdetect=incoming
mailbox=
channel => 1
context=incoming
switchtype=national
signalling=fxs_ks
echocancel=yes
echocancelwhenbridged=yes
relaxdtmf=yes
rxgain=1.5
txgain=1.5
immediate=no
busydetect=yes
callprogress=no
musiconhold=
usecallerid=no
group=2
;callerid=2564286000
channel => 2-4