Polycom 3725-77601-001H manual Device Registration, Alternate Gatekeeper, Neighboring Gatekeeper

Polycom CMA System Operations Guide

Alternate Gatekeeper

Within the CMA system, you can designate an alternate gatekeeper. In this case, when an endpoint or other device registers with the CMA system gatekeeper, the system sends back the alternate gatekeeper information to the endpoint. Then, if communication with the CMA system fails, the endpoint will attempt to register with the alternate gatekeeper.

In a redundant configuration, the alternate gatekeeper is the third gatekeeper in line after the primary and redundant CMA system gatekeepers.

Neighboring Gatekeeper

Neighboring gatekeepers are gatekeepers that manage other H.323 regions within an enterprise. When a call originates within one gatekeeper region but that region’s gatekeeper is unable to resolve the dialed address, it is forwarded to the neighboring gatekeepers for resolution.

Note

A neighboring gatekeeper may require additional configuration to completely integrate with the CMA system gatekeeper. Also, not all CMA system parameters correspond to parameters on a neighboring gatekeeper.

Within the CMA system, you can also set up a dial rule that will route calls with designated prefixes to designated neighboring gatekeepers.

Device Registration

The CMA system manages device registration and offers several choices from an open registration policy to more restrictive registration policies.

No matter what the gatekeeper registration policy, any endpoint that is automatically provisioned, any endpoint that is registered with the Global Address Book, and any endpoint that is added manually to the CMA system can automatically register with the gatekeeper.

The CMA system gatekeeper registration policies include:

Allow Registration of All Endpoints

This open Allow Registration of All Endpoints registration policy allows any device that can find the CMA system gatekeeper to register with it. This is the default policy.

In this case, devices can register to the CMA system automatically:

•When the device broadcasts a message to find a gatekeeper with which to register. In this case, specifying a default gatekeeper is important, because devices that register automatically may find multiple gatekeepers.

396 Polycom, Inc.