[root@pbx1 asterisk]# cat /etc/zaptel.conf
# Autogenerated by /usr/sbin/genzaptelconf -- do not hand edit
# Zaptel Configuration File
#
# This file is parsed by the Zaptel Configurator, ztcfg
#

# It must be in the module loading order


# Span 1: WCTDM/0 "Wildcard TDM410P Board 1" (MASTER) 
# channel 1, WCTDM, no module.
fxsks=2
# channel 3, WCTDM, no module.
# channel 4, WCTDM, no module.

# Global data

loadzone	= us
defaultzone	= us

[root@pbx1 asterisk]# cat /etc/asterisk/zapata.conf
[trunkgroups]

[channels]
context=from-zaptel
switchtype=national
signalling=fxo_ks
rxwink=300		; Atlas seems to use long (250ms) winks
group=0               	; where the ring cadence is changed *after* the callerid spill.
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes	
echocancel=yes
echocancelwhenbridged=yes
rxgain=0.0
txgain=0.0
group=0
callgroup=1
pickupgroup=1
immediate=no
channel => 3