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Ibrahim Bazarwala
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Cisco Voice over ip .

Hello Experts,
Our main office is connected to Dubai via extension 716. I don't know how it is configured. We have cisco router 2610 , which is having 2 atm ports and four telephone lines are coming there. Two of them are for Dubai and Two of them are for Qatar. When we dial 716 it is going to Dubai and from that we can call to any of our colleagues. I have no idea about the cables directly coming to the router (four of them telephone cables) , from where they are coming ? Can it be coming from PBX ? Below is what I found from the cisco router
voice-port 1/0/0
 pre-dial-delay 0
 description FXO CONNECTION TO KUWAIT PBX EXT 716
!
voice-port 1/0/1
 description FXO CONNECTION TO KUWAIT PBX EXT 557
!
voice-port 1/1/0
 shutdown
 description FXS CONNECTION DIR TO FAX EXT 101
!
voice-port 1/1/1
 shutdown
 description FXS CONNECTION DIR TO PHONE EXT 102
!


Please help.
Regards
RoutersVoice Over IP

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Last Comment
Ibrahim Bazarwala

8/22/2022 - Mon
agonza07

Most likely its coming from a PBX as an analog extension.

From the notes/descritption looks like the Kuwait PBX has two extensions 716 & 557 that connect to the Cisco router. If you look at the dial-peers those two should be forwarding over to your Dubai router.
Ibrahim Bazarwala

ASKER
Thanks for you answer,
One more question, is there in the cisco router any where mention the land line number of dubai. Means that if 716 is dialed, it will be equal to 00965xxxxxxx (which is the land line number of dubai office).
agonza07

You'll need to look at the dial peers. If the one in Kuwait doesn't have it then the translation may be happening on the Dubai router.
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Ibrahim Bazarwala

ASKER
Let me check the dubai router.
agonza07

It could be connected to a analog line on the Dubai side, so it may be another extension out there from the PBX instead of the outside line
Ibrahim Bazarwala

ASKER
Sorry about the second comment. The extension for dubai is 00974 not 00965. 00965 is the country code for kuwait.
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Ibrahim Bazarwala

ASKER
Below is the router configuration for dubai


voice-port 1/0/0
 description FXO CONNECTION-1 TO DUBAI PBX
 pre-dial-delay 0
!
voice-port 1/0/1
 description FXO CONNECTION-2 TO DUBAI PBX
!
voice-port 1/1/0
 description FXS CONNECTION-1 TO DUBAI EXT. 111
!
voice-port 1/1/1
 description FXS CONNECTION-2 TO DUBAI EXT. 112
!
dial-peer cor custom
!
!
!
dial-peer voice 1 pots
 destination-pattern 111
 port 1/1/0
 forward-digits all
!
dial-peer voice 2 pots
 shutdown
 destination-pattern 112
 port 1/1/1
!
dial-peer voice 3 pots
 destination-pattern 971
 port 1/0/0
!
dial-peer voice 4 pots
 destination-pattern 971
 port 1/0/1
!
dial-peer voice 10 voip
 destination-pattern 10.
 session target ipv4:10.10.1.1
!
dial-peer voice 11 voip
 destination-pattern 965
 session target ipv4:10.10.1.1
!
dial-peer voice 12 voip
 destination-pattern 974
 session target ipv4:10.12.1.1
!
dial-peer voice 5 pots
 destination-pattern 255
 port 1/1/0
 forward-digits all
!
banner motd ^C
agonza07

Send the dial peers of the Kuwait router too.
Ibrahim Bazarwala

ASKER
voice-port 1/0/0
 pre-dial-delay 0
 description FXO CONNECTION TO KUWAIT PBX EXT 716
!
voice-port 1/0/1
 description FXO CONNECTION TO KUWAIT PBX EXT 557
!
voice-port 1/1/0
 shutdown
 description FXS CONNECTION DIR TO FAX EXT 101
!
voice-port 1/1/1
 shutdown
 description FXS CONNECTION DIR TO PHONE EXT 102
!
!
dial-peer cor custom
!
!
!
dial-peer voice 1 pots
 shutdown
 destination-pattern 101
 port 1/1/0
!
dial-peer voice 2 pots
 shutdown
 destination-pattern 102
 port 1/1/1
!
dial-peer voice 3 pots
 destination-pattern 965
 port 1/0/0
 forward-digits 0
!
dial-peer voice 5 voip
 destination-pattern 111
 session target ipv4:10.11.1.2
!
dial-peer voice 6 voip
 shutdown
 destination-pattern 971
 session target ipv4:10.11.1.2
!
dial-peer voice 7 voip
 shutdown
 destination-pattern 974
 session target ipv4:10.12.1.1
!
dial-peer voice 8 voip
 shutdown
 destination-pattern 25.
 session target ipv4:10.11.1.2
!
dial-peer voice 12 pots
 destination-pattern [2-9][0-9][0-9][0-9]....
 port 1/0/1
 forward-digits all
 prefix 9
!
dial-peer voice 13 pots
 destination-pattern 00965T
 port 1/0/1
 forward-digits 8
 prefix 9
!
dial-peer voice 14 pots
 shutdown
 destination-pattern 00965T
 port 1/0/0
 forward-digits 8
 prefix 9
!
dial-peer voice 16 pots
 destination-pattern [1-8].[0-9]
 port 1/0/0
 forward-digits all
!
dial-peer voice 17 pots
 shutdown
 destination-pattern [1][8][0-9]....
 port 1/0/0
 forward-digits all
 prefix 9
!
dial-peer voice 18 pots
 destination-pattern [1][8][0-9]....
 port 1/0/1
 forward-digits all
 prefix 9

dial-peer voice 15 pots
 answer-address 503
 shutdown
 destination-pattern [1-8].[0-9]
 port 1/0/1
 forward-digits all
!
dial-peer voice 4 pots
 destination-pattern 965
 port 1/0/1
 forward-digits 0
!
sip-ua
 retry invite 1
 retry response 3
 retry bye 3
 retry cancel 3
 timers trying 1000
 sip-server ipv4:10.10.1.112
!
!
gatekeeper
 shutdown
!
!
telephony-service
 max-ephones 2
 max-dn 2
 timeouts interdigit 50
!
!
ephone  1
 !
!
!
banner motd ^C-------------------------------------------------------------^C
!
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Ibrahim Bazarwala

ASKER
If you can also clarify me the meaning of FXO and FXS. I goggled around net but unable to understand the meaning. If you can please clarify in simple words.
ASKER CERTIFIED SOLUTION
agonza07

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agonza07

FXO is the connection that goes to an analog landline from the provider.

FXS is the connection that goes to a phone. You connect a phone or Station to this port.

FXO receives dial-tone. FXS generates dial-tone.

Best I can explain at the moment.
Ibrahim Bazarwala

ASKER
Hello Agonza07,
It means that the line coming from pbx to my office is know as FXSand the one which is coming from ministry of communication to our company is know as FXO.
Thanks.
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agonza07

In a way yes.

Here is some more information.
http://www.3cx.com/faqs/fxs-fxo/
Ibrahim Bazarwala

ASKER
Hello agonza07,
Thanks for your help.