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show voice port - Tecnológico de Costa Rica

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Figure 21 Linking PBXs over the IP Network (Remote Dial Peers)<br />

408 555-xxxx<br />

E&M VIC IP cloud<br />

3/0/0 192.168.11.3<br />

919 958-xxxx<br />

PBX PBX<br />

West East<br />

dial-peer <strong>voice</strong> 121 voip<br />

<strong>de</strong>st-pat +1919958….<br />

session-target ipv4:192.168.11.3<br />

num-exp 8…. +1919958….<br />

Source Destination<br />

Configuring E&M Interfaces<br />

Now configure number expansion, so that numbers beginning with 8 (belonging to the East office)<br />

and sent by the West PBX to the West router are expan<strong>de</strong>d into the full <strong>de</strong>stination pattern:<br />

West(config)# num-exp 8.... +1919958....<br />

Note You do not need to configure number expansion for calls from one West telephone to another<br />

West telephone, because the PBX switches those calls.<br />

Finally, configure the E&M <strong>port</strong> similarly to any other network interface, using the <strong>voice</strong>-<strong>port</strong><br />

command from global configuration mo<strong>de</strong>:<br />

West(config)# <strong>voice</strong>-<strong>port</strong> 3/0/0<br />

West(config-<strong>voice</strong>-<strong>port</strong>)# signal immediate<br />

West(config-<strong>voice</strong>-<strong>port</strong>)# operation 4-wire<br />

West(config-<strong>voice</strong>-<strong>port</strong>)# type 2<br />

Note Configure the PBX to pass all DTMF signals to the router.<br />

Configuration for the East router is similar. The PBX for this router is connected to E&M <strong>port</strong> 2/0/1.<br />

The following commands configure a local dial peer for all East telephones:<br />

East(config)# dial-peer <strong>voice</strong> 211 pots<br />

East(config-dial-peer)# <strong>de</strong>st-pat +1919958....<br />

East(config-dial-peer)# <strong>port</strong> 2/0/1<br />

These commands configure a remote dial peer for telephones on the West router:<br />

East(config)# dial-peer <strong>voice</strong> 221 voip<br />

East(config-dial-peer)# <strong>de</strong>st-pat +1408555....<br />

East(config-dial-peer)# session-target ipv4:192.168.19.27<br />

East(config-dial-peer)# exit<br />

East(config)#<br />

Configure number expansion, to make it easy for East users to dial numbers on the West router:<br />

West(config)# num-exp 5.... +1408555....<br />

10696<br />

Voice over IP Quick Start Gui<strong>de</strong> 27

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