Cisco Cisco TelePresence Video Communication Server Expressway
Lync 2013 no longer supports H.263, so X8.1 or later software is required to interoperate successfully with Lync
2013. X7.2 or earlier software will work with Lync 2013 only if calls are routed through a Cisco AM GW transcoder.
2013. X7.2 or earlier software will work with Lync 2013 only if calls are routed through a Cisco AM GW transcoder.
The Microsoft Interoperability option key is required for all types of communication with Lync 2013.
Skype for Business Server
Not supported.
Video Codecs
If you use Lync 2010 for Windows, the other video endpoints must support H.263; this is the common video codec
supported by endpoints and the Lync client. (Lync 2010 for Windows does not support H.264)
supported by endpoints and the Lync client. (Lync 2010 for Windows does not support H.264)
The Lync 2010 client for Apple Mac OS X only supports RTVideo. It does not support H.263 or H.264. To make video
calls between this client and Cisco Collaboration video endpoints, you need the Cisco AM GW to transcode between
RTVideo and H.263/H.264.
calls between this client and Cisco Collaboration video endpoints, you need the Cisco AM GW to transcode between
RTVideo and H.263/H.264.
Video codec selection
When the B2BUA receives a call with no SDP—that is, without a list of codecs that can be used for the call (for
example, a call that has been interworked from H.323)—the B2BUA must populate the SDP with a "pre-configured"
list of codecs from which Lync can select, as Lync does not support INVITES with no SDP.
example, a call that has been interworked from H.323)—the B2BUA must populate the SDP with a "pre-configured"
list of codecs from which Lync can select, as Lync does not support INVITES with no SDP.
The codecs offered and selected, therefore, may not reflect the best codecs that could have been selected by the
endpoints.
endpoints.
Presence
Presence updates are only supported from VCS to Lync Server:
■
Use of 'Available' for registered endpoints is optional via Presence User Agent (PUA) configuration
■
"Off-line" and "Available" (not "In-call", which requires FindMe-based configuration) are reported for users
(for up to 100 subscribers)
(for up to 100 subscribers)
■
Passing Lync presence to devices registered to VCS is not supported.
Conferencing
Cisco TelePresence Server
Supported Lync clients can join conferences hosted on a TelePresence Server.
The TelePresence Server must be registered to the VCS Control.
Lync users can share their screen in a TelePresence Server conference. They will receive presentation from other
participants in the composited video stream from the TelePresence Server.
participants in the composited video stream from the TelePresence Server.
Cisco TelePresence MCU Series
Supported Lync clients can join conferences hosted on a MCU.
The MCU must be registered to the VCS Control.
Lync users can share their screen in an MCU conference. They will receive presentation from other participants in the
composited video stream from the MCU.
composited video stream from the MCU.
There is a known issue with the MCU which does not revoke the floor after it stops sharing the content from Lync. To
the Lync user it looks like Lync is still sharing the screen, but other participants have stopped seeing the screen.
the Lync user it looks like Lync is still sharing the screen, but other participants have stopped seeing the screen.
Lync Conference (AV MCU) not supported
When a point to point call involves a standards-based endpoint and a Lync client, a third party cannot be invited into
the conference because the Lync client tries to start a Lync conference. The VCS and the standards-based
endpoints do not support endpoints joining Lync conferences.
the conference because the Lync client tries to start a Lync conference. The VCS and the standards-based
endpoints do not support endpoints joining Lync conferences.
Multiway
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Cisco VCS and Microsoft Lync Deployment Guide