Industry Video Teleconferencing Profile - VTC001
1. Scope, 1.1. Schematic, Figure 1.1. Video teleconferencing equipment schematic
5. Subnetwork-type independent requirements
5.1. Video, communications and control, 5.1.1. General, 5.1.2. Operating mode, 5.1.3. Data transmission rates, 5.1.4. Video coding and decoding, 5.1.5. Picture format (resolution), 5.1.6. Motion rendition, 5.1.7. Forward error correction (FEC), 5.1.8. Motion compensation, 5.1.9. Freeze-frame video, 5.1.10. Emerging ITU-T T.120 audiographics Recommendations, 5.1.10.1. Still image and binary file transfer, 5.1.11. Concurrent operation, 5.1.11.1. Concurrent operation at p=1, 5.1.11.2. Concurrent operation at p=2, 5.1.11.3. Concurrent operation at p>2
5.2. Control and Indication signals, 5.2.1. Call control (handshaking), 5.2.2. Frame structure, 5.2.3. Camera interface, 5.2.4. Monitor interface
5.3. Audio, 5.3.1. General, 5.3.2. Speech quality modes, 5.3.2.1. Narrowband speech mode, 5.3.2.2. Wideband speech at 48-56 Kbit/s, 5.3.2.3. Narrowband speech at 16 Kbit/s, 5.3.3. Encoding and decoding, 5.3.4. Lip synchronization, 5.3.5. Electrical and mechanical interfaces, 5.3.5.1. Electrical specification , 5.3.5.2. Mechanical specification
5.4. Confidentiality and secure operation, 5.4.1. Technical requirements, 5.4.2. Data encryption standard, Figure 5.1. Block diagram of a sample Type 3 encryption implementation, 5.4.3. Output feedback mode, 5.4.4. Validation, 5.4.5. Levels of security protection, 5.4.6. Visual indication
5.5. Multipoint Control Unit (MCU), 5.5.1. General, 5.5.2. Video, Communications and Control, 5.5.2.1. General, 5.5.2.2. Video Switching (Selective Presence), 5.5.2.2.1. Voice Activated Switching, 5.5.2.2.2. User Broadcast Control, 5.5.2.2.3. User Select Control, 5.5.2.2.4. Chair Control, 5.5.2.2.5. FEC Framing on Switching, 5.5.2.2.6. Terminal Identifiers, 5.5.2.3. Video Mixing (Continuous Presence), 5.5.2.4. Selection of SCM, 5.5.2.4.1. Minimum SCM, 5.5.2.4.2. Secondary VTUs, 5.5.3. Audio, 5.5.3.1. General, 5.5.3.2. Audio Mixing, 5.5.3.3. Voice Activated Switching, 5.5.4. Data Communications, 5.5.5. Confidentiality and Security, 5.5.6. Cascading, 5.5.7. Simultaneous Conference Operation, 5.5.8. Value Added Services
5.6. VTU Control of Multipoint Conference, 5.6.1. Normal VTU Multipoint Capability, 5.6.1.1. Basic Capability, 5.6.1.2. Optional Capabilities, 5.6.2. VTU User Control Capability, 5.6.2.1 User Broadcast Control, 5.6.2.2. User Select Control, 5.6.3. VTU Chair Control Capability, 5.6.3.1. Basic Capability, 5.6.3.2. Optional Capabilities
6. Subnetwork-type dependent requirements, 6.1. General, 6.2. VTU network interface, Figure 6.1 Examples of some network connections, 6.3. Integrated Services Digital Network, 6.3.1. ISDN Basic rate interface (BRI), 6.3.1.1. Option 1, external terminal adapter, Figure 6.2. Option 1, external TA, 6.3.1.2. Option 2, external terminal adapter with dialing interface, 6.3.2. VTU network interface (BRI), 6.4. MCU Network Interface., 6.4.1. Physical and Electrical Interface., Table 6.1 MCU - Network Interface, 6.5. VTU and MCU Restricted Operation.
A.1. Introduction, A.1.1. Symbols and conventions used in Std. Status column
A.2. Identification, A.2.1. Vendor information, A.2.2. Device identification
A.3. H.261 PICS (Approved 3/93)
A.4. H.230 PICS (Approved 3/93), A.4.1. MCU General Capability, A.4.2. MCU Voice Activation, A.4.3. MCU User Broadcast Control, A.4.4. MCU User Select Control, A.4.5. MCU Chair Control Capability, A.4.6. MCU Terminal Identifiers, A.4.7. MCU Selection of SCM, A.4.8. MCU Audio General, A.4.9. MCU Data Communications, A.4.10. MCU Confidentiality and Security, A.4.11. MCU Cascading, A.4.12. MCU Simultaneous Conference Operation, A.4.13. MCU Value Added Services, A.4.14. Other MCU Capabilities, A.4.15. Normal VTU Basic Multipoint Capability, A.4.16. Normal VTU Optional Multipoint Capability, A.4.17. VTU User Broadcast Control Capability, A.4.18. VTU User Select Control Capabilities, A.4.19. VTU Chair Control Basic capability, A.4.20. VTU Chair Control Optional Capability, A.4.21. VTU Data Communications, A.4.22. Other VTU Capability
A.5. H.231 PICS (Approved 3/93)
A.6. H.221 PICS (Approved 3/93)
A.7. H.242 PICS (Approved 3/93)
A.8. H.243 PICS (Approved 3/93)
A.9. H.233 PICS (Approved 3/93)
A.10. G.711 PICS (Approved 11/88)
A.11. G.722 PICS (Approved 11/88)
A.12. G.728 PICS (Approved 11/88)
Annex B (normative for Department of Defense)
B.1. Scope., B.1.1. Purpose., Figure B.1. Video teleconferencing equipment schematic, B.1.2. Demarcation., B.1.3. Application., B.1.4. Comments.
B.2. Normative references., B.2.1. Government documents., B.2.1.1. Specifications, standards, and handbooks., B.2.1.1.1. Federal standards., B.2.1.1.2. Military standards., B.2.1.2. Other government documents, drawings, and publications., B.2.1.2.1. DOD directives., B.2.1.2.2. Other government documents., B.2.2. Non-government publications., B.2.2.1. Electronic Industries Association (EIA) publications., B.2.2.2. ANSI publications., B.2.2.3. ITU-T publications., B.2.3. Order of precedence.
B.4. Abbreviations and acronyms.
B.5. Subnetwork-type independent requirements.
B.5.1. Video communications and control., B.5.1.1. General., B.5.1.2. Transfer rates., B.5.1.3. Video coding and decoding., B.5.1.4. Motion rendition., B.5.1.5. VTU network interface.
B.5.2. Still images., B.5.2.1. General., B.5.2.2. NITFS-JPEG mode., B.5.2.2.1. Implementation., B.5.2.2.2. Availability., B.5.2.2.3. Software., B.5.2.2.4. JPEG compression., B.5.2.2.5. NITF header., B.5.2.2.6. Image sub-header., B.5.2.2.7. Additional specifications.
B.5.4. Security., B.5.4.1. General., B.5.4.2. Levels of security., B.5.4.2.1. Unencrypted., B.5.4.2.2. Unclassified but sensitive (Type 3)., B.5.4.2.3. Classified (Type 1)., Figure B.2. Line of demarcation with external cryptographic device, B.5.4.3. Type 1 cryptographic equipment., B.5.4.3.1. Electrical and mechanical interfaces., Figure B.3. EIA-449/EIA-422-A Electrical interface for VTU, Table B.1. Type 1 Cryptographic equipment interface signals., B.5.4.3.2. Resynchronization., B.5.4.4. MCU Security., Table B.2 MCU Security, B.5.4.4.1. Classified MCU in Classified Operation., B.5.4.4.1.1. MCU Port Encryption, B.5.4.4.1.2. Trusted Facilities, B.5.4.4.1.3. Simultaneous Conference Operation, B.5.4.4.1.4. Multi-level Security., B.5.4.4.1.5. Cascading, B.5.4.4.2. Classified MCU in Unclassified Operation., B.5.4.4.2.1. Security Level Reconfiguration, B.5.4.4.2.2. Switching to Classified during a Conference
B.6. Subnetwork-type dependent requirements., B.6.1. ISDN Basic Rate Interface (BRI)., B.6.1.1. Option 2, External terminal adapter with dialing interface., Figure B.4. Option 2, External TA with dialing interface., B.6.1.2. Option 3, Classified operation., Figure B.5. Option 3, Classified operation with single channel., Figure B.6. Option 3, Classified operation with multiple channels., B.6.1.3. Classified MCU Network Interface.
B.7.1. Acquisition guidance., B.7.1.1. Nondevelopmental items., B.7.1.2. Tailoring., B.7.1.3. Mandatory optional., B.7.1.4. Software upgrades., B.7.1.5. Overseas conferences., B.7.1.6. Electrical and mechanical interfaces., B.7.1.7. Audio., B.7.1.7.1. Audio subsystem., B.7.1.7.2. Narrowband speech mode., B.7.1.7.3. Audio at p = 1., B.7.1.8. Video., B.7.1.8.1. Video picture-quality definition., B.7.1.8.2. Freeze-frame picture quality., B.7.1.8.3. Picture format (resolution)., B.7.1.9. Multipoint Control Unit (MCU).
B.7.2. TEMPEST recommendations., B.7.2.1. General., B.7.2.2. TEMPEST requirements., B.7.2.3 TEMPEST documents.
B.7.3. Type 3 Cryptographic equipment - export restrictions.
B.7.4. Classified operation over restricted networks.
B.7.5. Network access alternatives., B.7.5.1. ISDN access alternatives., B.7.5.1.1. External terminal adapter., Figure B.7. Network configuration for external terminal adapter., B.7.5.1.2. External terminal adapter with dialing interface., Figure B.8. Network configuration for external terminal adapter with EIA-366 dialing interface., B.7.5.1.3. Classified operation., Figure B.9. Network configuration for classified operation., B.7.5.1.4. Integrated terminal adapter., Figure B.10 Network configuration for integrated Terminal Adapter., B.7.5.1.5. Integrated terminal adapter and network termination. Figure B.11. Network configuration for integrated TA and NT1., B.7.5.2. Inverse multiplexers., B.7.5.2.1. Unclassified operation., B.7.5.2.2. Classified operation., Figure B.12. MCU/IMUX Operation with single-channel VTUs., Figure B.13. MCU/IMUX Operation Classified conference, B.7.5.3. Other network interfaces.
Figure 1.1. Video teleconferencing equipment schematic
Figure 5.1. Block diagram of a sample Type 3 encryption implementation
Figure 6.1 Examples of some network connections
Figure 6.2. Option 1, external TA
Figure B.1. Video teleconferencing equipment schematic
Figure B.2. Line of demarcation with external cryptographic device
Figure B.3. EIA-449/EIA-422-A Electrical interface for VTU
Figure B.4. Option 2, External TA with dialing interface.
Figure B.5. Option 3, Classified operation with single channel.
Figure B.6. Option 3, Classified operation with multiple channels.
Figure B.7. Network configuration for external terminal adapter.
Figure B.8. Network configuration for external terminal adapter with EIA-366 dialing interface.
Figure B.9. Network configuration for classified operation.
Figure B.10 Network configuration for integrated Terminal Adapter.
Figure B.11. Network configuration for integrated TA and NT1.
Figure B.12. MCU/IMUX Operation with single-channel VTUs.
Figure B.13. MCU/IMUX Operation Classified conference
Table 6.1 MCU - Network Interface
Table B.1. Type 1 Cryptographic equipment interface signals.
Copyright 1994 by the Corporation for Open Systems International
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