Analogue 4 port gateway with first 3 x ports populated, registering to Voyager SIP services.
Many thanks to Matevz Persak from Ayone(.co.nz) for sharing the sample config.
#----------------------------------------------------------------#
# #
# SN4114/JS/EUI #
# R6.9 2017-05-04 H323 SIP FXS FXO #
# 2017-09-05T15:38:34 #
# Update all fields with !! #
#----------------------------------------------------------------#
cli version 3.20
administrator !!USERNAME password !!YOURPASSWORD
clock local default-offset +12:00
dns-client server 8.8.8.8
dns-client server !!DNSSERVERSECONDARY
dns-relay
webserver port 80 language en
sntp-client
sntp-client server primary pool.ntp.org port 123 version 4
system hostname !!HOSTNAME
system
ic voice 0
low-bitrate-codec g729
profile ppp default
profile call-progress-tone NZ_Dialtone
play 1 5000 400 -15
profile call-progress-tone NZ_Alertingtone
play 1 400 400 -15 450 -15
pause 2 200
play 3 400 400 -15 450 -15
pause 4 2000
profile call-progress-tone NZ_Busytone
play 1 500 400 -15
pause 2 500
profile call-progress-tone NZ_SDTone
play 1 10000 425 -19 620 -19
profile call-progress-tone NZ_Callwaiting
play 1 200 400 -15
pause 2 200
profile call-progress-tone NZ_Releasetone
play 1 250 400 -15
pause 2 250
profile tone-set default
profile tone-set NZ
map call-progress-tone dial-tone NZ_Dialtone
map call-progress-tone ringback-tone NZ_Alertingtone
map call-progress-tone busy-tone NZ_Busytone
map call-progress-tone waiting-tone NZ_Callwaiting
map call-progress-tone release-tone NZ_Releasetone
map call-progress-tone congestion-tone NZ_Releasetone
profile voip default
codec 1 g711alaw64k rx-length 20 tx-length 20
codec 2 g711ulaw64k rx-length 20 tx-length 20
profile pstn default
profile ringing-cadence default
play 1 1000
pause 2 4000
profile sip default
no autonomous-transitioning
profile aaa default
method 1 local
method 2 none
context ip router
interface IF_LAN
ipaddress dhcp
context cs switch
digit-collection timeout 3
routing-table called-e164 RT_FXS_TO_SIP
route T dest-interface IF_SIP
routing-table calling-e164 RT_SIP_TO_PSTN
route default dest-service SV_HUNT_PSTN
interface sip IF_SIP
bind context sip-gateway GW_SIP
route call dest-table RT_SIP_TO_PSTN
remote !!VOYAGERSIPREALM(similar to A2384238.sip.voyager.co.nz) 5060
early-connect
early-disconnect
address-translation outgoing-call from-header user-part fix !!PHONENUMBER host-part fix !!VOYAGERSIPREALM
use profile tone-set NZ
interface fxs IF_FXS_0
route call dest-table RT_FXS_TO_SIP
no call-waiting
use profile tone-set NZ
interface fxs IF_FXS_1
route call dest-table RT_FXS_TO_SIP
no call-waiting
use profile tone-set NZ
interface fxs IF_FXS_2
route call dest-table RT_FXS_TO_SIP
no call-waiting
use profile tone-set NZ
service hunt-group SV_HUNT_PSTN
cyclic
drop-cause normal-unspecified
drop-cause no-circuit-channel-available
drop-cause network-out-of-order
drop-cause temporary-failure
drop-cause switching-equipment-congestion
drop-cause access-info-discarded
drop-cause circuit-channel-not-available
drop-cause resources-unavailable
drop-cause user-busy
route call 1 dest-interface IF_FXS_0
route call 2 dest-interface IF_FXS_1
route call 3 dest-interface IF_FXS_2
context cs switch
no shutdown
authentication-service AUTH_SVC
username !!PHONENUMBER password !!PASSWORD
location-service LOCATION_SVC
domain 1 !!VOYAGERSIPREALM
identity !!PHONENUMBER
authentication outbound
authenticate 1 authentication-service AUTH_SVC username !!PHONENUMBER
registration outbound
registrar !!VOYAGERSIPREALM
lifetime 3600
register auto
retry-timeout on-system-error 10
retry-timeout on-client-error 10
retry-timeout on-server-error 10
context sip-gateway GW_SIP
interface LAN
bind interface IF_LAN context router port 5060
spoofed nat-address auto
context sip-gateway GW_SIP
bind location-service LOCATION_SVC
no shutdown
port ethernet 0 0
medium auto
encapsulation ip
bind interface IF_LAN router
no shutdown
port fxs 0 0
use profile fxs nz
encapsulation cc-fxs
bind interface IF_FXS_0 switch
shutdown
port fxs 0 1
use profile fxs nz
encapsulation cc-fxs
bind interface IF_FXS_1 switch
no shutdown
port fxs 0 2
use profile fxs nz
encapsulation cc-fxs
bind interface IF_FXS_2 switch
no shutdown
port fxs 0 3
shutdown