System information

Chapter 3: Direct Registration of Polycom

RealPresence Systems with CUCM

The Direct Registration deployment model takes advantage of Polycom® RealPresence®

systems SIP capabilities to integrate with Cisco Unified Communications Manager (CUCM) IP

Telephony. It allows our customers to integrate the video and IP Telephony ‘islands’ they have

deployed, providing investment protection as well as freedom of choice to continue to deploy

best-of-breed Polycom solutions.

This chapter includes the following sections:

• Deployment Model Advantages

• Supported Products for Deployment

• Deployment Architecture

• Design Considerations

• Deployment Tasks

○ Registering a Polycom RealPresence Immersive, Room, or Desktop System with a

CUCM

○ Configuring SIP Integration Between a Polycom RMX System and CUCM

• Troubleshooting

Deployment Model Advantages

Registering Polycom RealPresence endpoints with Cisco Unified Communications Manager

allows you to easily integrate Polycom products within a Cisco deployment without additional

network management overhead. It provides a single source for call admission control, and

Polycom video endpoints can also take advantage of telephony functions, for example, being

placed on hold or transferred to another endpoint when SIP-enabled and registered with CUCM.

Within an enterprise with a mixture of telepresence equipment, Polycom HDX®, Polycom Group

Series®, and Immersive Telepresence® (ITP) systems are able to make and receive calls with

Cisco CTS endpoints. Polycom endpoints can also participate in multipoint calls hosted by

either an RMX system (also SIP trunked to CUCM), a Cisco TelePresence Server, or a Cisco

TelePresence Multipoint Switch (CTMS).

To allow for flexible deployments and migrations, Polycom endpoints can be simultaneously

SIP-registered with CUCM and H323-registered with a Polycom® Distributed Media

Application™ (DMA™) system. For more information on DMA integrations, see the chapters on

Polycom RealPresence Platform SIP Integration with CUCM and Polycom RealPresence

Platform Integration with VCS.