User's Manual

RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide

3-24 Polycom, Inc.

Participant Settings

When defining a new participant or modifying an existing participant, select SIP as the

participant’s networking environment Type in the

New Participant

Participant Properties -

General tab.

The participants Video Protocol in the

New Participant

Participant Properties -

Advanced tab

should be left at (or set to) its default value: Auto.

The Auto setting allows the video protocol to be negotiated according to the endpoint’s

capabilities:

• OCS endpoints and Lync Server clients connect to the conference using the RTV

protocol.

• Other endpoints negotiate the video protocol in the following sequence: H.264,

followed by RTV, followed by H.263 and finally H.261.

Protocol Forcing

Selecting H.264, RTV, H.263 or H.261 as the Video Protocol results in endpoints that do not

support the selected Video Protocol connecting as Secondary (audio only).

SIP