Polycom DOC2702A Manuel D’Utilisation

Appendix I-Polycom Open Collaboration Network (POCN)

Polycom, Inc.

The DMA system can be configured as a SIP proxy and registrar for the environment as well 
as a Gatekeeper for dial in H.323 calls. When configured as a Gateway for dial in H.323 calls, it 

enables H.323 endpoints to connect to the same VMR as SIP clients.
When used as a SIP peer, the DMA system can host video calls between Cisco endpoints that 

are registered with the CUCM, Lync Clients that are registered with the Lync Server and 

Polycom 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”.

Microsoft Lync Server manages Presence for each registered Polycom endpoint and enables 
video calls between Lync Clients and Polycom endpoints allowing Lync contacts to be called 

without needing to know their addresses.
RTV video, MS-ICE and Lync-hosted conferencing are supported when Polycom endpoints 

are registered to Lync Server. Polycom endpoints use H.264, while Lync Clients use the RTV 

protocol.

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”.

Configure a SIP Trunk connection between the Polycom DMA system and the Cisco 
Unified Communications Manager (CUCM).
For more information see the Polycom Unified Communications Deployment Guide for Cisco 

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

Register the MCU to the Lync Server
a

Install a Security Certificate on the MCU. 
The Certificate is obtained from the System Administrator and saved on the 

Workstation.

In the SIP Servers tab of the IP Network Services Properties dialog box:
iIn the Certificate Method drop-down menu, select PEM/PFX.
iiClick the Send Certificate button.

The Install File dialog box is displayed.