Below is a sample configuration to a YeaStar MyPBX 'service provider' trunk in the MyPBX interface.
MyPBX IP = 192.168.1.252
SmartNode IP = 192.168.1.251
Default Gateway = 192.168.1.1
DNS = 192.168.1.1
NTP Server = 192.168.1.10
Hint: search & replace the IP addresses above within notepad or similar text editor to customise.
#----------------------------------------------------------------#
#
# SN4114/JO/EUI
# R6.6 2014-11-06 H323 SIP FXS FXO
#
#----------------------------------------------------------------#
cli version 3.20
clock local default-offset +12:00
dns-client server 192.168.1.1
dns-relay
webserver port 80 language en
snmp community public ro
sntp-client
sntp-client server primary 192.168.1.10 port 123 version 4
system hostname sn4114
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
codec 3 g729 rx-length 20 tx-length 20
fax transmission 1 relay t38-udp
fax transmission 2 bypass g711alaw64k rx-length 10 tx-length 10
profile pstn default
profile sip default
no autonomous-transitioning
profile aaa default
method 1 local
method 2 none
context ip router
interface eth0
ipaddress 192.168.1.251 255.255.255.0
tcp adjust-mss rx mtu
tcp adjust-mss tx mtu
context ip router
route 0.0.0.0 0.0.0.0 192.168.1.1 0
context cs switch
routing-table called-e164 TAB-OUT
route .%T dest-interface IF_ASTERISK
routing-table called-e164 TAB-IN
route .T dest-service FXOHUNT
interface sip IF-SIP
route call dest-table TAB-IN
remote 192.168.1.252
interface sip IF-INBOUND0
bind context sip-gateway GW-SIP
route call dest-table TAB-IN
remote 192.168.1.252
privacy
address-translation outgoing-call from-header user-part call host-part local-ip
interface sip IF-INBOUND1
bind context sip-gateway GW-SIP
route call dest-table TAB-IN
remote 192.168.1.252
address-translation outgoing-call to-header user-part fix INBOUND host-part fix 192.168.1.252
interface sip IF-INBOUND2
bind context sip-gateway GW-SIP
route call dest-table TAB-IN
remote 192.168.1.252
address-translation outgoing-call to-header user-part fix INBOUND host-part fix 192.168.1.252
interface sip IF-INBOUND3
bind context sip-gateway GW-SIP
route call dest-table TAB-IN
remote 192.168.1.252
address-translation outgoing-call to-header user-part fix INBOUND host-part fix 192.168.1.252
interface sip IF_ASTERISK
bind context sip-gateway GW-SIP
route call dest-table TAB-IN
remote 192.168.1.252
address-translation outgoing-call from-header user-part call host-part fix 192.168.1.251
address-translation outgoing-call to-header user-part call host-part fix 192.168.1.252
interface fxo IF_FXO0
route call dest-interface IF-INBOUND0
disconnect-signal loop-break
disconnect-signal busy-tone
ring-number on-caller-id
use profile tone-set NZ
interface fxo IF_FXO1
route call dest-interface IF-INBOUND1
disconnect-signal loop-break
disconnect-signal busy-tone
use profile tone-set NZ
interface fxo IF_FXO2
route call dest-interface IF-INBOUND2
disconnect-signal loop-break
disconnect-signal busy-tone
use profile tone-set NZ
interface fxo IF_FXO3
route call dest-interface IF-INBOUND3
disconnect-signal loop-break
disconnect-signal busy-tone
use profile tone-set NZ
service hunt-group FXOHUNT
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
drop-cause destination-out-of-order
route call 1 dest-interface IF_FXO3
route call 2 dest-interface IF_FXO2
route call 3 dest-interface IF_FXO1
route call 4 dest-interface IF_FXO0
context cs switch
no shutdown
context sip-gateway GW-SIP
interface IF_ASTERISK
bind interface eth0 context router port 5060
context sip-gateway GW-SIP
no shutdown
port ethernet 0 0
medium auto
encapsulation ip
bind interface eth0 router
no shutdown
port fxo 0 0
flash-hook-duration 50
use profile fxo nz
encapsulation cc-fxo
bind interface IF_FXO0 switch
no shutdown
port fxo 0 1
flash-hook-duration 50
use profile fxo nz
encapsulation cc-fxo
bind interface IF_FXO1 switch
no shutdown
port fxo 0 2
flash-hook-duration 50
use profile fxo nz
encapsulation cc-fxo
bind interface IF_FXO2 switch
no shutdown
port fxo 0 3
flash-hook-duration 50
use profile fxo nz
encapsulation cc-fxo
bind interface IF_FXO3 switch
no shutdown