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Multipoint Control Units (MCUs)

Multipoint Control Units (MCUs). Dr Bob Dixon Chief Research Engineer OARNet and Ohio State University Internet2 Commons Site Coordinator Training March 22, 2004 Indianapolis, Indiana. Multipoint Control Units: Hardware vs Software. Hardware Dedicated, real-time operating system

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Multipoint Control Units (MCUs)

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  1. Multipoint Control Units(MCUs) Dr Bob Dixon Chief Research Engineer OARNet and Ohio State University Internet2 Commons Site Coordinator Training March 22, 2004 Indianapolis, Indiana

  2. Multipoint Control Units: Hardware vs Software • Hardware • Dedicated, real-time operating system • Generally works well • RADVISION • Accord (Polycom) • TandBerg • Software • Based on Windows operating system in a server • Historically don’t work as well • White Pine • PictureTel

  3. MCU Control Functions • Defining a conference • Speed • Number of users • Multiple windows • Operating a conference • Dial out • Dial in • Monitoring a conference • Monitoring an MCU • Cascading MCUs

  4. Important Administrative Topics • Continuous Presence • Video-switching algorithms • Remote control of far end • Testing endpoints in advance

  5. MCUs available in the market • RADVision H.323 • 9 ports at 384Kbps • $18K • Small, simple, includes Gatekeeper • RADVision ViaIP • 50 ports at 384Kbps, expandable • $150K • Powerful, reliable; ECS Gatekeeper • Accord/Polycom NGK • 48 ports at 384Kbps, Expandable multi Format capable • $450K • Many advanced features; no Gatekeeper necessary • Tandberg • 16 ports at 384Kbps • Many advanced features

  6. RADVISION MCU-323 • 9 Users@384Kbps (5@768Kbps, 15@128Kbps) • Built-in Web server. Provides operational control of who is in a conference and who has the floor. Also controls application sharing and MCU Cascading. • Built-in Telnet server. Provides optional remote control and monitoring. • PC remote configuration software. Provides conference definitions, names, and software updates. • List price $22.5K. Discounts as low as $10K.

  7. Tandberg MCU • 16 users, 3 simultaneous conferences • Support for H.264 • Embedded Encryption • Supports ISDN and IP • Embedded webserver for control and configuration • Small 1U form factor, 19” Rackmountable

  8. Polycom MGC • 3 Flavors, 25, 50 and 100 • Capacity varies by configuration • Support for H.264 • Can support ISDN, IP and ATM • Separate Software control • Priced by configuration

  9. RADVISION via-IP • 4 flavors 15, 30, 60, 100 • 384Kbps capacity by type • 15  12 • 30  24 • 60  42 • 100  70 • Support for SIP • Can add gateway cards • Chassis based system, expandable • Gatekeeper based dialing

  10. Commons MCU Test Facility • Three MCUs are available for testing and discussion. • Web interface • Telnet interface • PC interface • The Commons will support remote or onsite (you come to Ohio) testing. • Useful for assisting in evaluations for your own purchases.

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