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Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note
OL-3008-01
Chapter 5 Configuring the Voice Interfaces
MGCP Configuration
The following example shows the overall configuration required to enable MGCP on a T1/PRI line:
isdn switch-type primary-5ess
controller T1 1/0
framing crc4
linecode hdb3
pri-group timeslots 1-24 service mgcp
interface Serial1/0:23
no ip address
no logging event link-status
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable
isdn bind-l3 ccm-manager
dial-peer voice 1 pots
application mgcpapp
port 1/0:0
Configuring E1 Interfaces
To configure a new E1 interface (balanced or unbalanced) or to change the configuration of an existing
interface, use the following procedure:
Step 1 Identify the port number and enter line-specific information provided by your local carrier.
a. Choose the E1/PRI interface to configure by entering the following command from Global
configuration mode:
Gateway(config)# controller e1 1/0
This example configures an E1 interface in slot 1 and unit 0.
b. Specify the framing type:
Gateway(config-controller)# framing crc4
c. Specify the line code format:
Gateway(config-controller)# linecode hdb3
Step 2 Configure parameters for the voice interface.
a. Specify the PRI group and time slots to be mapped:
Gateway(config-controller)# pri-group timeslots 1-31 service mgcp
b. Configure each PRI group as a virtual serial interface:
Gateway(config-controller)# interface serial 1/0:15
c. Specify the E1 interface and unit number to modify:
interface Serial1/0:15
no ip address
no logging event link-status
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable
Step 3 Configure the PRI port by entering the following command:
Gateway(controller-e1)# pri-group timeslots 1-31 service mgcp
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