GB/T 21642.4-2012Technical requirements for IP video conference system devices - Part 4: Gatekeeper (English PDF)
基于IP网络的视讯会议系统设备技术要求 第4部分：网守（GK）
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Level / Type
National · Recommended
Issue date
June 29, 2012
Implementation date
October 1, 2012
Scope
GB/T 21642.4-2012 is the English-translated version of 基于IP网络的视讯会议系统设备技术要求 第4部分：网守（GK）.
GB/T 21642.4-2012 is the Chinese standard "Technical requirements for IP video conference system devices - Part 4: Gatekeeper".
Its scope clause reads: This section GB/T 21642 specifies the functional requirements of IP video conferencing gatekeeper devices, interface requirements, performance requirements, the agreement should Demand, traffic flow, addressing and naming, billing requirements, operation and maintenance management requirements, environmental requirements, and power requirements.
This section applies to IP video conferencing gatekeeper device. Its clauses include terms and definitions, abbreviations.
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Document preview — GB/T 21642.4-2012
National Standard of the People's Republic of China
- ICS
- 33.040.40
- Classification
- M32
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions, abbreviations
- 4 Functional requirements
- 6 interface requirements
- 7 performance requirements
- 8 agreement calls for
- 9 communication flow
- 10 addressing and naming
- 13 environmental requirements
- 14 power requirements
- Appendix A (normative appendix) IP video conferencing gatekeeper MIB
1 Scope
This section GB/T 21642 specifies the functional requirements of IP video conferencing gatekeeper devices, interface requirements, performance requirements, the agreement should
Demand, traffic flow, addressing and naming, billing requirements, operation and maintenance management requirements, environmental requirements, and power requirements.
This section applies to IP video conferencing gatekeeper device.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) used in the present document.
YD/T1096-2009 Technical requirements router edge router
YD/T1097-2009 router equipment specification Core Router
ITU-TH.225.0 packaged packet-based multimedia communication systems call signaling protocols and media stream (Mediastream packetizationandsynchronizationonnon-guaranteedqualityofserviceLANs)
Security & Encryption ITU-TH.235 H-series (H.323 and other based on H.245) multimedia terminals (Securityanden- cryptionforH-Series (H.323andotherH.245-based) multimediaterminals)
ITU-TH.245 Control Protocol (Controlprotocolformultimediacommunication) multimedia communication
ITU-TH.323 packet-based multimedia communication system (Packet-basedmultimediacommunicationssystems)
3 Terms and definitions, abbreviations
3.1 Terms and Definitions
The following terms and definitions apply to this document.
3.1.1 Video conferencing business
Using images, voice compression technology, the use of video conferencing systems and digital communication transmission circuit, real-time transmission activity between two or more points
Image, voice, application data (whiteboard, graphics) information in the form of traffic.
3.1.2 IP video conferencing business IPvideoconferenceservice
IP protocol are used to-end multi-point video conferencing service that the conference system in all terminals support TCP/IP protocol, this section
Especially in the terminal support ITU-TH.323 terminals.
3.1.3 Gatekeeper
A functional entity in the network to provide address translation. Network access control, bandwidth management meeting resource scheduling.
3.1.4 Multi-point controller
A network functional entity to provide a plurality of control members to participate in a multipoint conference between. MC can provide between all terminals […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 45 pages — is available in the English PDF.
Similar standards
Editions of GB/T 21642.4
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 21642.4-2012 | Technical requirements for IP video conference system devices - Part 4: Gatekeeper | current edition | Current |
This page sells the current edition, GB/T 21642.4-2012. Earlier editions are listed for reference only.
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Related Standards
GB/T 21642.3-2012 — Technical requirements for IP video conference system devices - Part 3: multipoint control unit
GB/T 21642.2-2008 — The technical requirements for video conference system devices based on IP-based network - Part 2: Multipoint Processor
GB/T 21642.1-2008 — The technical requirements for video conference system devices based on IP-based network - Part 1: Multipoint Controller
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