Cisco Cisco IOS Software Release 12.2(2)XA

To configure the address and protocol of the call agent (media gateway controller) for MGCP endpoints 
on a media gateway, use the mgcp call-agent global configuration command. To return to default 
values, use the no form of this command.

mgcp call-agent {dns-name | ip-address} [port] [service-type type] [version protocol-version]

no mgcp call-agent 

The default call-agent UDP port is 2727 for MGCP 1.0, NCS 1.0, and TGCP 1.0.

The default call-agent UDP port is 2427 for MGCP 0.1 and SGCP.

The default service type and version is mgcp 0.1.

Global configuration

Global call-agent configuration (with this command) and call-agent configuration for an MGCP profile (with 
the MGCP profile call-agent command) are mutually exclusive; the first to be configured on an endpoint 
blocks configuration of the other on the same endpoint. 

Fully qualified domain name (including host portion) for the call agent. For 
example, ca123.example.net.

IP address for the call agent.

UDP port number over which the gateway sends messages to the call agent. 
Range is from 1025 to 65535.

Keyword indicating that the next word is the protocol service type.

Select a protocol service type. Valid values are mgcp, ncs, sgcp, and tgcp.

Keyword indicating that the next word is the version number.

Select a protocol version from the valid values listed below.

For service-type mgcp: 0.1, 1.0

For service-type ncs: 1.0

For service-type sgcp: 1.1, 1.5

For service-type tgcp: 1.0

12.1(1)T

This command was introduced.

12.1(3)T

The service-type option was added.

12.1(5)XM

The version option was added.

12.2(2)XA

New service types (ncs and tgcp) and appropriate versions were added. 
Version 1.0 was added for the mgcp service type.