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Chapter 5 Configuring the Voice Interfaces

MGCP Configuration

5-12

Catalyst 4224 Access Gateway Switch Software Configuration Guide

OL-2031-02

The ISDN lower layer information (Q.921 and below) is terminated and processed

on the gateway. The Layer 3 information (Q.931 and above) is transported over

TCP to the Cisco CallManager (MGCP call agent).

Step 5 Enable MGCP for the port by entering the following commands:

Gateway(config)# dial-peer voice 1 pots

Gateway(config-dial-peer)# application mgcpapp port

Replace portnumber with the port number on the voice gateway you are

configuring and ds0group with the DS0 group number.

Step 6 To view the status of the PRI line, enter the following command:

Gateway # show ccm-manager backhaul

This command displays information about the status of the TCP backhaul link and

the status of any PRI D-channels in the gateway. Example 5-3 shows the type of

information the system displays.

Example 5-3 PRI Backhaul Status—T1

PRI Backhaul link info:

Link Protocol: TCP

Remote Port Number: 2428

Remote IP Address: 172.20.71.44

Current Link State: OPEN

Statistics:

Packets recvd: 0

Recv failures: 0

Packets xmitted: 0

Xmit failures: 0

PRI Ports being backhauled:

Slot 1, port 1

Slot 1, port 0

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Cisco Catalyst 4224 Especificaciones Pagina 120