Zapata.conf

[channels]
context=inbound
signalling=fxs_ks
callerid=asreceived
mailbox=100
echocancel=128
echocancelwhenbridged=no
echotraining=800
rxgain=0.0
txgain=2.0
group=1
callgroup=1
pickupgroup=1
busydetect=yes
busycount=8
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=no
transfer=yes
cancallforward=yes
callreturn=yes
;immediate=no
channel => 1

asterisk*CLI> zap show channels
   Chan Extension  Context         Language   MusicOnHold
 pseudo            inbound
      1            inbound

    -- Starting simple switch on 'Zap/1-1'
    -- Executing Goto("Zap/1-1", "default|s|1") in new stack
    -- Goto (default,s,1)
    -- Executing NoOp("Zap/1-1", "Hello") in new stack
    -- Executing Macro("Zap/1-1", "stdexten|100|SIP/100&SIP/101&SIP/102") in new stack
    -- Executing DBput("Zap/1-1", "LastCIDNum/LastNum=2165333790") in new stack
    -- DBput: family=LastCIDNum, key=LastNum, value=2165333790
    -- Executing Dial("Zap/1-1", "SIP/100&SIP/101&SIP/102|25|r") in new stack
    -- Called 100
    -- Called 101
    -- Called 102
    -- SIP/102-0036 is ringing
    -- SIP/100-b447 is ringing
    -- SIP/101-d95d is ringing
    -- Got SIP response 603 "Decline" back from 192.168.1.103
    -- SIP/100-b447 is busy