Polycom DOC2702A User Manual

Appendix I-Polycom Open Collaboration Network (POCN)

Polycom, Inc.

The various deployment combinations and settings within the various Deployment 

Architectures affects the administration of the system.

The Polycom CMA system can be used as the only gatekeeper for the network. Bandwidth 

and call admission control of endpoints registered with the CMA system is split between the 

CMA system and the CUCM.
For more information see the Polycom Unified Communications Deployment Guide for Cisco 

Environments, “Using a Polycom CMA System as a Gatekeeper”.

The Cisco IOS Gatekeeper can be used as the only gatekeeper for the network if the 

management capabilities of the Polycom CMA system are not required.
For more information see the Polycom Unified Communications Deployment Guide for Cisco 

Environments, “Using a Standalone Cisco IOS Gatekeeper”.

Neighbored gatekeepers make it easier to create a common dial plan and should be 

considered when integrating an existing Cisco telephony environment with an existing 

Polycom network. Neighbored Gatekeepers allow number translation while maintaining the 

existing environments.
For more information see the Polycom Unified Communications Deployment Guide for Cisco 

Environments, “Neighbored Cisco IOS and Polycom CMA Gatekeepers”.

The Polycom DMA system can be configured as a SIP proxy and registrar for the 

environment. When used as a SIP peer, the DMA system can host video calls between Cisco 
endpoints that are registered with the CUCM and Polycom SIP endpoints that are registered 

with the DMA system.
For more information see the Polycom Unified Communications Deployment Guide for Cisco 

Environments, “Using a Polycom DMA System as SIP Peer”.

When Polycom SIP endpoints (voice and video) are registered directly with CUCM you can 

take advantage of supported telephone functions. CUCM may not support the full range of 

codecs and features available on the Polycom equipment. CUCM supported codecs and 

features will be used in such cases.
For more information see the Polycom Unified Communications Deployment Guide for Cisco 

Environments, “Direct Registration of Polycom Endpoints with the Cisco Unified Communications 

Manager Participants”.