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Configure analoge phones (fxs) with Sip trunk

Hello everyone ,

IS it possiple to configure FXS to work over SIP TRUNK ? I HAVE 16  FXS ports ,and voip gateway 2921  cisco .

how to configure fxs to work with it ? 

any help thanks.

1 Accepted Solution

Accepted Solutions

Chris Deren
Hall of Fame
Hall of Fame

Is there a PBX at play here, i.e. CUCM or CME?

In either case you defined proper dial-peers to point to/from the FXS ports to match the destination of the SIP trunk, pretty straight forward.

View solution in original post

2 Replies 2

Chris Deren
Hall of Fame
Hall of Fame

Is there a PBX at play here, i.e. CUCM or CME?

In either case you defined proper dial-peers to point to/from the FXS ports to match the destination of the SIP trunk, pretty straight forward.

actually i have a legacy PBX . i have only the router ,phones ,and legacy PBX 

i did a configuration ,and it's  working only when someone dial my number the telephone rangs but i can not do any call from the analoge phone . it's working like accept ,but not send  . analog phone connected to the FXS PORT.

here is the configuration that i did . please help me figuring out what is the problem .

i have 100 DIDS provided from the sip provider the range is from 126180600 -126180601 -126180602 to 126180699

sip server is :10.208.9.69

!
! Last configuration change at 08:43:46 UTC Wed Nov 9 2016
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
enable secret 5 $1$2swb$B4oUJWwogWj9QrTP1C2gI0
!
no aaa new-model
!
!
!
!
!
!
!
!
!
!
!
ip dhcp excluded-address 100.100.4.1
ip dhcp excluded-address 100.100.10.0 100.100.10.50
!
ip dhcp pool Wifi
 network 100.100.4.0 255.255.254.0
 default-router 100.100.4.254
 dns-server 84.235.57.230 84.235.6.55
!
ip dhcp pool Outlet
 network 100.100.10.0 255.255.254.0
 dns-server 84.235.57.230 84.235.6.55
 default-router 100.100.10.254
!
!
!
ip cef
no ipv6 cef
multilink bundle-name authenticated
!
!
!
!
!
!
cts logging verbose
!
!
voice-card 0
!
!
!
voice service voip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 no supplementary-service sip moved-temporarily
 no supplementary-service sip refer
 redirect ip2ip
 fax protocol pass-through g711alaw
 modem passthrough nse codec g711alaw
 sip
  transport switch udp tcp
  early-offer forced
!
voice class codec 1
 codec preference 1 g711alaw
 codec preference 2 g711ulaw
 codec preference 3 g729r8
!
!
!
voice class custom-cptone Saudi_Arabia
 dualtone disconnect
  frequency 425
  cadence 500 500
!
!
voice hunt-group 100 longest-idle
 list 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115
 pilot 0126180600
!
!
!
!
voice translation-rule 1
 rule 1 /01261806../ /0126180600/
!
voice translation-rule 2
 rule 1 /1../ /600/
!
!
voice translation-profile frominside
 translate calling 2
!
voice translation-profile fromoutside
 translate called 1
!
!
!
license udi pid CISCO2921/K9 sn FGL201511PX
hw-module pvdm 0/0
!
!
!
!
redundancy
!
!
!
!
!
!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 ip address 10.68.45.166 255.255.255.252
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
!
interface GigabitEthernet0/1.1
 encapsulation dot1Q 1 native
 ip address 100.100.12.254 255.255.254.0
 ip nat inside
 ip virtual-reassembly in
!
interface GigabitEthernet0/1.2
 encapsulation dot1Q 2
 ip address 100.100.1.254 255.255.254.0
 ip access-group 6 out
 ip nat inside
 ip virtual-reassembly in
!
interface GigabitEthernet0/1.3
 encapsulation dot1Q 3
 ip address 100.100.4.254 255.255.254.0
 ip access-group 8 out
 ip nat inside
 ip virtual-reassembly in
!
interface GigabitEthernet0/1.4
 encapsulation dot1Q 4
 ip address 100.100.6.254 255.255.254.0
 ip access-group 9 out
 ip nat inside
 ip virtual-reassembly in
!
interface GigabitEthernet0/1.5
 encapsulation dot1Q 5
 ip address 100.100.8.254 255.255.254.0
 ip access-group 7 out
 ip nat inside
 ip virtual-reassembly in
!
interface GigabitEthernet0/1.6
 encapsulation dot1Q 6
 ip address 100.100.10.254 255.255.254.0
 ip access-group 10 out
 ip nat inside
 ip virtual-reassembly in
!
interface GigabitEthernet0/2
 no ip address
 duplex auto
 speed auto
!
interface GigabitEthernet0/2.2963

descrivtion wan interface
 encapsulation dot1Q 2963
 ip address x.x.x.x 255.255.255.254
 ip nat outside
 ip virtual-reassembly in
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
ip nat pool Chronic x.x.x.x x.x.x.x netmask 255.255.255.254
ip nat inside source list 1 pool Chronic overload
ip nat inside source list 2 pool Chronic overload
ip nat inside source list 3 pool Chronic overload
ip nat inside source list 4 pool Chronic overload
ip nat inside source list 5 pool Chronic overload
ip route 0.0.0.0 0.0.0.0 x.x.x.x
ip route 10.208.9.69 255.255.255.255 10.68.45.165
!
!
!
access-list 1 permit 100.100.0.0 0.0.1.255
access-list 2 permit 100.100.4.0 0.0.1.255
access-list 3 permit 100.100.6.0 0.0.1.255
access-list 4 permit 100.100.10.0 0.0.1.255
access-list 5 permit 100.100.12.0 0.0.1.255
!
control-plane
!
!
voice-port 0/0/0
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/0/1
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/0/2
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/0/3
 ring frequency 50
 cptone SA
!
voice-port 0/1/0
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/1/1
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/1/2
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/1/3
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/2/0
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/2/1
 ring frequency 50
 cptone SA
!
voice-port 0/2/2
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/2/3
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/3/0
 ring frequency 50
 cptone SA
!
voice-port 0/3/1
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/3/2
 ring frequency 50
 cptone SA
 caller-id enable
!
voice-port 0/3/3
 ring frequency 50
 cptone SA
 caller-id enable
 !
 !
 !
 !
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
!
dial-peer voice 100 pots
 destination-pattern 100
 port 0/0/0
!
dial-peer voice 101 pots
 destination-pattern 101
 port 0/0/1
!
dial-peer voice 102 pots
 destination-pattern 102
 port 0/0/2
!
dial-peer voice 103 pots
 destination-pattern 103
 port 0/0/3
!
dial-peer voice 104 pots
 destination-pattern 104
 port 0/1/0
!
dial-peer voice 105 pots
 destination-pattern 105
 port 0/1/1
!
dial-peer voice 106 pots
 destination-pattern 106
 port 0/1/2
!
dial-peer voice 107 pots
 destination-pattern 107
 port 0/1/3
!
dial-peer voice 108 pots
 destination-pattern 108
 port 0/2/0
!
dial-peer voice 109 pots
 destination-pattern 109
 port 0/2/1
!
dial-peer voice 110 pots
 destination-pattern 110
 port 0/2/2
!
dial-peer voice 111 pots
 destination-pattern 11
 port 0/2/3
!
dial-peer voice 112 pots
 destination-pattern 112
 port 0/3/0
!
dial-peer voice 113 pots
 destination-pattern 113
 port 0/3/1
!
dial-peer voice 114 pots
 destination-pattern 114
 port 0/3/2
!
dial-peer voice 115 pots
 destination-pattern 115
 port 0/3/3
!
dial-peer voice 5990 voip
 translation-profile incoming fromoutside
 session protocol sipv2
 session transport udp
 incoming called-number 1261806..
 codec g711alaw
!
dial-peer voice 89999 voip
 translation-profile outgoing frominside
 destination-pattern .T
 session protocol sipv2
 session target ipv4:10.208.9.69
 session transport udp
 codec g711alaw
 no vad
!
!
!
!
gatekeeper
 shutdown
!
!
!
line con 0
line aux 0
line 2
 no activation-character
 no exec
 transport preferred none
 transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
 stopbits 1
line vty 0 4
 password 7 13541640095F077E2F712D
 login
 transport input telnet
!
scheduler allocate 20000 1000
!
end