ISO/IEC 23289:2002 信息技术-系统间通讯和信息交换-共用通讯网络-QSIG和H.323间信号传输-基本服务

标准编号：ISO/IEC 23289:2002

中文名称：信息技术-系统间通讯和信息交换-共用通讯网络-QSIG和H.323间信号传输-基本服务

英文名称：Information technology — Telecommunications and information exchange between systems — Corporate telecommunication networks — Signalling interworking between QSIG and H.323 — Basic services

发布日期：2002-12

标准范围

ISO/IEC 23289:2002规定了“QSIG”和“H.323”之间的信令互通，以支持公司电信网络(CN)内的基本服务。“QSIG”是在专用综合业务网络(PISN)内的专用综合业务网络交换(PINX)之间的Q参考点处操作的信令协议。Q参考点在ISO/IEC 11579-1中定义。PISN向其用户提供电路交换基本服务和补充服务。QSIG在其他国际标准中被规定，特别是ISO/IEC 11572(支持基本服务的呼叫控制)。“H.323”是一组信令协议，用于支持分组网络内的语音或多媒体通信，特别是使用因特网协议(IP)作为其网络层协议(IP网络)的分组网络。H.323信令协议在IP网络中的端点之间操作，或者经由一个或多个网守间接地操作，或者直接地操作。端点可以是终端或到另一个网络的网关。H.323是指各种ITU-T建议，特别是建议H.225.0和H.245(基本通信能力)。ISO/IEC 23289:2002规定了基本业务的信令互通，这些业务在采用QSIG的PISN和采用H.323的专用IP网络之间提供语音、DTMF、传真和调制解调器媒体的双向传输能力。本国际标准规定了在PISN和IP网络之间建立用户信息(音频)连接的要求，但是用于在IP网络中传输音频的协议和用于在IP网络中建立和关闭音频传输的信令的协议不在本国际标准的范围之内。补充服务超出了本国际标准的范围。QSIG和H.323之间的互通允许在PISN的用户处发起的呼叫在专用IP网络的用户处终止，或者在专用IP网络的用户处发起的呼叫在PISN的用户处终止。采用QSIG的PISN和采用H.323的公共IP网络之间的互通超出了本国际标准的范围。然而，当与其他相关功能(例如，号码转换、安全功能等)结合部署时，该国际标准中规定的功能原则上适用于这样的场景。ISO/IEC 23289:2002适用于可以充当采用QSIG的PISN和采用H.323的专用IP网络之间的网关的任何互通单元。

ISO/IEC 23289:2002 specifies signalling interworking between "QSIG" and "H.323" in support of basic services within a corporate telecommunication network (CN).

"QSIG" is a signalling protocol that operates at the Q reference point between Private Integrated services Network eXchange (PINX) within a Private Integrated Services Network (PISN). The Q reference point is defined in ISO/IEC 11579-1. A PISN provides circuit-switched basic services and supplementary services to its users. QSIG is specified in other International Standards, in particular ISO/IEC 11572 (call control in support of basic services).

"H.323" is a set of signalling protocols for the support of voice or multimedia communication within a packet network, in particular a packet network that uses the Internet Protocol (IP) as its network layer protocol (IP network). H.323 signalling protocols operate between endpoints in an IP network, either indirectly via one or more gatekeepers, or directly. An endpoint can be a terminal or a gateway to another network. H.323 is an "umbrella" recommendation referring to various ITU-T recommendations, in particular recommendations H.225.0 and H.245 (basic communication capabilities).

ISO/IEC 23289:2002 specifies signalling interworking for basic services that provide a bidirectional transfer capability for speech, DTMF, facsimile and modem media between a PISN employing QSIG and a private IP network employing H.323. This International Standard specifies requirements for establishing user information (audio) connections between the PISN and the IP network, but protocols for transmitting audio in the IP network and for signalling in order to establish and close down audio transmission in the IP network are outside the scope of this International Standard. Supplementary services are outside the scope of this International Standard.

Interworking between QSIG and H.323 permits a call originating at a user of a PISN to terminate at a user of a private IP network, or a call originating at a user of a private IP network to terminate at a user of a PISN.

Interworking between a PISN employing QSIG and a public IP network employing H.323 is outside the scope of this International Standard. However, the functionality specified in this International Standard is in principle applicable to such a scenario when deployed in conjunction with other relevant functionality (e.g., number translation, security functions, etc.).

ISO/IEC 23289:2002 is applicable to any interworking unit that can act as a gateway between a PISN employing QSIG and a private IP network employing H.323.

标准预览图