Cisco TelePresence MCU 4500 Series

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The Cisco TelePresence® MCU 4500 Series is the industry's leading full high-definition multimedia conferencing bridge. It delivers superior video and voice with an easy-to-use, versatile management interface. Compatible with all major vendors' endpoints, each model maintains its capacity and performance in every configuration, delivering the best experience for each participant, every time.

Cisco TelePresence MCU 4500 Series Feature Summary



Design Features

• Standards-based and compatible with all major vendors' endpoints
• Up to 40 video plus 40 voice ports
• More than 50 custom layouts
• Comprehensive wideband audio support
• Support for both Session Initiation Protocol (SIP) and H.323 endpoints
• Support for Cisco TelePresence PacketSafe technology, which minimizes effects of network packet loss
• Compact size: Two rack units (2RU) tall and 19-in. rack-mountable

Application Features

• Offers Cisco TelePresence ConferenceMe for multipoint desktop video
• Enables transition from standard definition (SD) to high definition (HD) using Cisco TelePresence ClearVision technology
• Integrated with Cisco Unified Communications Manager (v8.6 or later) for ad-hoc conferencing
• Integrated with Cisco TelePresence Conductor
• Integrated with Cisco TelePresence Management Suite
• Offers full interoperability with ISDN networks using standalone Cisco TelePresence ISDN Gateways
• Compatible with Microsoft Office Communications Server
• Fully integrated, with built-in gatekeeper and streaming server
• Supports Cisco TelePresence Multiway technology

Performance Features

• High-definition continuous presence on every port
• Cisco TelePresence Universal Port technology, ensures each participant receives the best possible experience
• Constant high capacity
• Bandwidth per site up to 4 Mbps
• Video resolutions up to 1080p 30 fps and 720p 60fps

Cisco TelePresence MCU 4501 Models


Continuous Presence Video Participants (Symmetric)

With 1080p30 HD+ Capacity Option (Asymmetric)

Additional Voice Participants

Video Streaming Unicast*/Multicast


12 x 720p30

6 x 1080p30 or 720p60

12 x 1080p30




20 x 720p30

10 x 1080p30 or 720p60

20 x 1080p30




30 x 720p30

15 x 1080p30 or 720p60

30 x 1080p30




40 x 720p30

20 x 1080p30 or 720p60

40 x 1080p30



*Maximum number of unicast streams depends on network topology. When using the web conferencing option feature, the maximum number of unicast streams supported by the Cisco TelePresence MCU 4515 and Cisco TelePresence MCU 4520 is 50.

Product Specifications

Product Compatibility

• Standards-based and compatible with all major vendors' endpoints

Universal Transcoding and Transrating

• HD and SD can be combined within the same conference
• All calls are automatically audio and video transcoded and transrated
• Any bandwidth, any resolution, any video or audio codec can be used on any video call within the same conference
• All participants have their own personal encodes

Streaming Video

• Built-in streaming server
• Ability to view using Windows Media Player, RealPlayer, or QuickTime
• Streaming of slides (H.239 and Virtual Network Computing [VNC])
• Text chat
• Unicast and multicast
• User Datagram Protocol (UDP), TCP, or HTTP
• Independent choice of bandwidth and codec

Localization and Customization

• Custom interactive voice response (IVR)/auto attendant audio prompts and graphics
• Uploadable multilanguage support
• Unicode conference and site names

Built-In Gatekeeper

• Resolution of E.164 numbers
• Registration of conferences, endpoints, and gateways
• Ability to register up to 25 devices

Built-In Web Server

• Complete configuration, control, and monitoring of the system and conferences

Multipoint-Control-Unit (MCU) Features

• Dial in or dial out through web server
• Standalone or with gatekeeper/registrar/proxy
• Configurable audio and video auto attendant
• Advanced continuous presence as standard on all ports
• Automatic selection of best layout
• Individual layout selection using remote control or webpages
• More than 50 custom layouts
• Active speaker selection using remote control or voice activated
• Floor assignment through webpage or management application
• Far-end camera control tunneling using remote control or web pages
• Text identification of sites
• On-screen text messaging to individual or all sites
• Built-in conference scheduling and reservation
• On-demand and ad hoc conferences
• Automatic lecture mode
• Preview of conference and individual camera on webpages
• Web conferencing option-those without endpoints can still interact
• Uploadable bitmaps for voice participants
• Video association for IP and traditional private branch exchanges (PBXs)
• Automatic connection to audio conferences
• Integration with Cisco Unified Communications Manager v8.6 or later ad-hoc conferencing features allows Cisco video IP phones to initiate impromptu multiparty calls with other Cisco TelePresence endpoints.
• Linked voice and video calls
• Automatic redialing
• Cisco TelePresence Multiway technology, which enables Cisco® video endpoints to initiate ad hoc multiparty calls

Content Features

• Presentation mode: You can add slides from your PC using VNC.
• Dual video using H.239 and BFCP content sharing
• Automatic content handover
• Widescreen (16:9) support
• Four content modes: Hybrid, Passthrough, transcode and main video
• Up to 1080p in H.264
• Up to 720p in H.263
• Passthrough content option to maximize capacity
• Content transcoding for interoperability
• Participants with no content support can receive transcoded content in main video

Cisco Telepresence ConferenceMe

• Video, audio, and content sharing
• Multiple layouts
• Firewall friendly
• Independent transcode per participant
• Up to 12 simultaneous connections
• Client computer requirements: Refer to the system requirements of your PC and the list of verified webcams under the support section of the Cisco website.

High-Definition Performance

• Main video up to 1080p 30 fps and 720p 60 fps H.264 4-Mbps continuous presence
• Comprehensive HD audio codecs
• Content video up to 1080p


• English as standard, but alternative language packs can be loaded onto the system

Video and Audio Specifications


• Up to 4 Mbps with both H.263 and H.264, for each site in all conference modes, including advanced continuous presence

Video Standards

• H.261, H.263, H.263+, H.263++, and H.264

Video Resolution

• From QCIF up to 1080p (1920 x 1080), including interlaced iCIF and iSIF
• 4:3 and 16:9 aspect ratios

Frame Rates

• Up to 60 frames per second

Audio Standards

• G.711, G.722, G.722.1, G.723.1, G.728, G.729, MPEG-4 AAC-LC, MPEG-4 AAC-LD, and Polycom Siren14/G.722.1 Annex C

Audio Features

• Wideband audio mixing
• Built-in and uploadable auto attendant voice prompts
• Automatic gain control, adjustable gain, power indication, and individual audio mute using webpages

Network, Security, and Management Specifications


• H.323, SIP, H.235 (Advanced Encryption Standard [AES]), Secure Real-Time Transport Protocol (SRTP), Transport Layer Security (TLS), H.239 (dual video), VNC, Binary Floor Control Protocol (BFCP), H.243 (chair control), FTP, Real-Time Transport Protocol (RTP), (Real-Time Streaming Protocol (RTSP), HTTP, Secure HTTP (HTTPS), Dynamic Host Configuration Protocol (DHCP), Simple Network Management Protocol (SNMP), Network Time Protocol (NTP), IPv4, and IPv6

Quality Of Service (QoS)

• Configurable differentiated services code point (DSCP) or type of service (ToS)/IP Precedence

Security Features

• Seven levels of access rights and privileges for users
• Strong password policy
• Personal identification number (PIN)-protected conferences
• Conference locking through remote control or web interface or management application
• Secure non-PC hardware and operating system
• AES encryption, 128-bit key, H.235
• SIP encryption
• TLS certificate verification
• Video firewall option-second Ethernet port
• Audit log
• Static ARP
• Certificate-based login with OCSP certificate checking


• RJ-45 Ethernet, 10-/100-/1000-Mbps full / half duplex, manual or autosensing
• RJ-45 serial port
• CompactFlash socket
• Thirty-nine status LEDs

System Management

• XML-RPC management application programming interface (API)
• Management through embedded web server
• RS-232 for local control and diagnostics
• Syslog for diagnostics
• Configurable event logs and full H.323 and SIP decoding
• Configuration backup to network
• Secure upgrades through Ethernet or CompactFlash
• Call detail records (CDRs)

Network Resilience

• Cisco TelePresence Packet Safe technology, which provides intelligent down-speeding, packet pacing, and packet-loss concealment to help ensure optimum video and audio quality
• Dynamic jitter buffering
• Alternate gatekeepers
• DNS SRV failover for SIP

Physical Specifications

Physical Dimensions

(H x W x D)

• Physical dimensions: 3.43 x 17.4 x 19.25 in. (87 x 442 x 489 mm) (2RU)
• 19-in. rack-mountable (kit supplied) or standalone


• 33 lb (15 kg)


• 100-240 VAC, 50/60 Hz
• 2684 BTU/h (787W) maximum heat dissipation

Environmental Data

• Operating temperature 32 to 95°F (0 to 35°C) ambient
• Relative humidity below 95% (noncondensing)

Approvals and Compliance

• European safety: EN 60950-1
• USA/Canada safety: UL 60950-1
• CB, CE
• EMC:
• EN55022 class A, EN61000-3-2, EN61000-3-3, EN55024: EN61000-4-2, -3, -4, -5, -6, -11, FCC Part 15 class A, VCCI class A, AS/NZS 3548, CCC: GB4943, GB9254, YD/T993
• NAL Certificate (China)
• RoHS compliant
• Compliance Model Number:
• MCU 4505
• MCU 4510
• MCU 4515
• MCU 4520
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