kiwi:/etc/asterisk# ztcfg -vvv

Zaptel Configuration
======================


Channel map:

Channel 01: FXS Kewlstart (Default) (Slaves: 01)
Channel 02: FXS Kewlstart (Default) (Slaves: 02)
Channel 03: FXS Kewlstart (Default) (Slaves: 03)
Channel 04: FXS Kewlstart (Default) (Slaves: 04)

4 channels configured.

kiwi:/etc/asterisk#

zaptel.conf:
------------------------------
loadzone=jp
defaultzone=jp
fxsks=1-4

zapata.conf:
------------------------------

[trunkgroups]

[channels]
context=from-pstn
signalling=fxs_ks

callwaiting=yes
callerid=asreceived
usecallingpres=yes
callwaitingcallerid=yes
callprogress=yes

threewaycalling=yes
transfer=yes
cancallforward=yes
allreturn=yes

echocancel=yes
echocancelwhenbridged=yes
rxgain=0.0
txgain=0.0

group=1

channel => 1-4