/etc/asterisk/zapata.conf
;autogenerated by /usr/local/sbin/config-zaptel  do not hand edit
;Zaptel Channels Configurations (zapata.conf)
;
;For detailed zapata options, view /etc/asterisk/zapata.conf.orig

[trunkgroups]

[channels]
context=default
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
relaxdtmf=yes
;rxgain=0.0
;txgain=0.0
callgroup=1
pickupgroup=1
immediate=no

;Sangoma A101 port 1 [slot:12 bus:2 span:1] <wanpipe1>
context=from-pstn
group=1
switchtype=national
signalling=pri_cpe
channel => 1-23