In environments where zones are defined, you must register the embedded gatekeeper's zone prefix with the MCM if you want the users in the MCM's zone to be able to initiate calls with users in the embedded gatekeeper's zone. At the unit's prompt, type enable and press Enter . At the prompt, type config terminal and press Enter . At the config prompt, type gatekeeper and press Enter . At the config-gk prompt, type zone remote identifier IP address port and press Enter .
Port is the port the embedded gatekeeper uses to communicate.
The default port the embedded gatekeeper uses in 1719. Step 7 Press Ctrl-Z .