GB/T 21639-2008
基于IP网络的视讯会议系统总技术要求
The technical requirements of video conferencing service for IP-based network
- 实施日期
- 2008-11-01
- ICS 分类
- 33.040
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 274 条
GB/T 21639-2008
The technical requirements of video conferencing service for IP-based network
GB/T 20185-2006
Optical interface requirements for equipments and systems relating to the synchronous digital hierarchy
GB/T 2900.69-2005
Electrotechnical Terminology Integrated services digital network (ISDN) - Part 1: General aspects
GB/T 14733.6-2005
Terminology for electrotechnical space radiocommunication
GB/T 19897.2-2005
Automatic Meter Reading System Lower Layer Communication Protocol Part 2:Use of area networks on twisted pair with carrier signalling
GB/T 19856.1-2005
Lightning protection-Telecommunication lines-Part 1:Fibre optic Installation
GB/T 19856.2-2005
Lightning protection-Telecommunication lines-Part 2:Lines using metallic conductors
GB/T 19516-2004
The specifications of wired-emergency telephone system of expressway
GB/T 15279-2002
The specifications of automatic telephone set
GB/T 7611-2001
Characteristics of the electrical interfaceat hierarchical bit rate for digital network
GB/T 11593-2001
Interface between data terminal equipment and data circuit-terminating equipment for synchronous operation on public data networks
GB/T 18498-2001
Interworking between packet switched public data networks and public maritime mobile satellite data transmission systems
GB/T 18119-2000
Video coding for low bit rate communication
GB/T 17904.2-1999
ISDN user-network interface data link layer specification and conformance testing method--Part 2:Data link layer protocol conformance testing method
GB/T 17904.1-1999
ISDN user-network interface data link layer specification and conformance testing method--Part 1:User-network interface data linklayer specification
GB/T 11598-1999
Packet-switched signalling system between public networks providing data transmission services
GB/T 11597-1999
Procedure for the exchange of control information and user data between a packet assembly/disassembly (PAD) facility and a packet mode DTE or another PAD
GB/T 11596-1999
DCE/DTE interface for a start-stop mode data terminal equipment accessing the packet assembly/disassembly facility (PAD) in a pubic data network situated in the same country
GB/T 11595-1999
Interface between data terminal equipment(DTE) and data circuit-terminating equipment (DCE)for terminals operating in the packet mode and connected to public data networks by dedicated circuit
GB/T 11591-1999
Packet assembly/disassembly facility(PAD) in a public data network