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Appendix H - Deployment Into Microsoft Environments
Polycom®, Inc. 997
● Cascaded VMR Participants, in point to point calls, can connect to Lync AVMCU participants by
escalating the call to a multipoint Lync Conference.
A re-INVITE is issued to escalate the conference from point-to-point to multipoint.
● A re-INVITE can be issued from an ongoing Audio conference to escalate it, enabling connected
participants to start sending video.
● Multiple Collaboration Server conferences cannot be cascaded into the same Lync 2013 AVMCU
conference. Multiple concurrent cascades are supported in a 1:1 fashion between simultaneous,
separate conferences.
● The Collaboration Server can host multiple conferences, each connected in cascade to a different
AVMCU hosted conference.
Look and Feel for Lync Clients and Group Series Endpoints
Lync clients and Group Series endpoints with native Lync capability connect to the AVMCU directly and
experience a Lync look and feel conference and can see all Lync clients; up to 5 simultaneously in Gallery
View.
If the active speaker is a Cascaded VMR Participant, the participant is seen by Lync Clients in a video
window in the Gallery View.
By default, Cascaded VMR Participants are forced to a 1x1 layout by the default setting of the
FORCE_1X1_LAYOUT_ON_CASCADED_LINK_CONNECTION System Flag. The flag’s default setting is
YES, which prevents a VMR layout being displayed within a Gallery View video window. If required,
alternative Personal Layouts can be forced only after this System Flag has been added and its value set to
NO.
For more information see, Modifying System Flags.
Look and Feel for Legacy Endpoints
Legacy endpoints will connect to the Collaboration Server and will be able to see all Lync clients; up to 5
simultaneously in Polycom video layouts. Only Classic Skin is supported. For more information about Skins,
see Defining AVC CP Conferencing Profiles.