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Multipoint Control Units (MCUs)

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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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