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Cisco 3515 MCU24 User Manual

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1-6

Installation and Upgrade Guide for Cisco Unified Videoconferencing 3515 MCU12 and MCU24 Releases 5.6 and 5.7

OL-17012-01

Chapter 1 Functionality

About Cisco Unified Videoconferencing 3515 MCU Architecture

Note

When using a High Definition Switched Video service type, only a single screen layout is available.

High definition participants must have H.264 only and receive 720p in order to view the conference in
high definition, otherwise the endpoint is considered as a standard definition endpoint.

About Cisco Unified Videoconferencing 3515 MCU Architecture

The Cisco Unified Videoconferencing 3515 MCU enables both voice-only and video conference calls
for H.323, SIP, H.320, SCCP and regular PSTN network telephones. H.323 and SIP devices can connect
to a conference directly through the Cisco Unified Videoconferencing 3515 MCU. Other devices such
as voice telephones and video conferencing terminals (H.320) can connect to a conference via a gateway,
such as the Cisco Unified Videoconferencing 3500 Gateway.

Figure 1-1

Supported Devices and Protocols

The Cisco Unified Videoconferencing 3515 MCU supports devices that can send and receive video
streams, as well as those that cannot send but only receive video streams. This means that terminals
without a video camera or video capturing capabilities can participate in a conference as voice-only
participants while benefiting from seeing the other participants.

204600

IP

IP - H323 and SCCP

MCU, Gateway

ISDN - H323.

3G - H324.M

SIP