Someone
public text v1 · immutable[channels]
;channel defaults
usecallerid=yes
hidecallerid=no
callwaiting=no
threewaycalling=yes
transfer=yes
echocancel=yes
;echotraining=yes
;define channels
group=1
context=from-pstn
rxgain=2.0
txgain=4.0
signalling=fxs_ks
channel => 1-3