Polycom 1500/1800/2000/4000 Content Sharing Using People+Content Protocol, Dial-out System Flags

Sharing Content During Conferences

●Due to UC-APL requirement, BFCP over TCP is not supported in Ultra Secure Mode (Collaboration Server 1500/1800/2000/4000).

Content Sharing via Polycom CSS Plug-in for Microsoft Lync Clients

From version 8.1, Polycom CSS (Content Sharing Suite) plug-in for Lync clients allows Lync clients to receive and send content via SIP BFCP, without having to use the people video layout.

The CSS plug-in invokes a separate call for content with or without video. This call may be invoked per a Lync client.

Microsoft Lync is not supported by Collaboration Server (RMX) 1800-0.

Dial-out System Flags

For SIP dial-out clients supporting both TCP and UDP, the preferred protocol is BFCP/UDP. However, this preference can be modified, by adding the SIP_BFCP_DIAL_OUT_MODE system flag and modifying its value to TCP (see ).

The Collaboration Server’s content sharing, as determined by the system flags settings and SIP client capabilities, is summarized in the following table:

System Flag - SIP_BFCP_DIAL_OUT_MODE

Flag Value		SIP Client: BFCP Support
	UDP	TCP	UDP and TCP
AUTO (Default)	BFCP/UDP selected as	BFCP/TCP selected as	BFCP/UDP selected as
	content sharing protocol	content sharing protocol	content sharing protocol
UDP		Cannot share content
TCP	Cannot share content	BFCP/TCP selected as content sharing protocol

BFCP support in dial-in Connections

●The MCU shares content with dial-in SIP clients according to their preferred BFCP protocol.

●SIP clients connected as audio-only cannot share content.

Content Sharing Using People+Content Protocol

People+Content utilizes a different content control protocol, and is Polycom’s proprietary protocol used prior to H.239. This protocol is supported in CP conferences, and is applicable for H.323 and ISDN endpoints.

Guidelines for Content Sharing Using People+Content Protocol

●If an endpoint supports both H.239 and People+Content protocols, H.239 is selected as the preferred communication protocol.

●H.263 and H.263 and H.264 Auto-selectionare the only supported content media protocols usage modes (see MCU Usage Modes of Content Protocols).

●People+Content is enabled by default. It can be disabled for all conferences and endpoints by manually adding the ENABLE_EPC System Flag, and setting its value to NO (default value is YES).

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