Specifications

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
<portnumber>:<ds0group>
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