Cisco Systems MCU24 manual Sccp

Chapter 1 Cisco Unified Videoconferencing 3515 MCU Functionality

Main Features of the 3515 MCU

Table 1-1 Summary of Cisco Unified Videoconferencing 3515 MCU Features (continued)

Feature	Description
Seamless	The Cisco Unified Videoconferencing 3515 MCU is built on the strong
interoperability	foundation of the Cisco H.323 and SIP software, ensuring full compliance
	and unmatched interoperability with IP and ISDN networks.
	The MCU enables H.323, SIP and SCCP devices to participate in the same
	conference session.
	When used with the Cisco Unified Videoconferencing 3500 Gateway, the
	MCU also enables ISDN and V.35 wireless devices to participate in the same
	conference session.
Intuitive web-based	Both the Cisco Unified Videoconferencing 3515 MCU system and actual
management and	conference sessions are managed, configured, and dynamically modified
control	through an intuitive, web-based interface that offers easy, high-level
	conference control and administrative flexibility for an enhanced user
	experience.
Supported protocols	•	H.323 version 4
	• SIP RFC 3261 for the Session Initiation Protocol
	•	SCCP
	• H.243 for conference control
	• RFC 2833 for in-band DTMF with SIP
	• H.281 for far end camera control (FECC)
	• H.235 for IP-based media encryption
	• H.239 for standard simultaneous transmission of live video and
		presentation sharing feeds.
	• SDP (RFC 3264, 2327)
	•	T.120
	• H.320 (when using a gateway)
	Note The Cisco Unified Videoconferencing 3515 MCU supports calls
		from H.323 and SIP endpoints in the same conference. Call
		signalling is handled on all ports regardless of the protocol type.
Audio transcoding	•	G.711 A/µ Law
codecs	•	G.722
	•	G.722.1
	•	G.723.1
	•	G.728
	• G.729 A and B

Installation and Upgrade Guide for Cisco Unified Videoconferencing 3515 MCU12 and MCU24 Release 5.1

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