标准号：ISO/IEC 22535-2006
实施状态：作废
中文名称：信息技术.系统间远程通信和信息交换.联合远程通信网络.SIP上QSIG的隧道效应
英文名称：Information technology - Telecommunications and information exchange between systems - Corporate Telecommunication Networks - Tunnelling of QSIG over SIP
发布日期：2006-04
被替代标准：ISO/IEC 22535-2009
代替标准：ISO/IEC 22535-2005;ISO/IEC DIS 22535-2005
采用标准：ECMA-355-2005,IDT
起草单位：ISO/IEC JTC 1/SC 6
标准简介：This International Standard specifies tunnelling of "QSIG" over the Session Initiation Protocol (SIP) within a corporate telecommunication network (CN).
QSIG is a signalling protocol that operates between Private Integrated services Network exchanges (PINX) within a Private Integrated Services Network (PISN). A PISN provides circuit-switched basic services and supplementary services to its users. QSIG is specified in International Standards, in particular ISO/IEC 11572 (call control in support of basic services), ISO/IEC 11582 (generic functional protocol for the support of supplementary services) and a number of Standards specifying individual supplementary services.
NOTE The name QSIG was derived from the fact that it is used for signalling at the Q reference point. The Q reference point is a point of demarcation between two PINXs.
SIP is an application layer protocol for establishing, terminating and modifying multimedia sessions. It is typically carried over IP (RFC 791, RFC 2460). Telephone calls are considered as a type of multimedia session where just audio is exchanged. SIP is defined in RFC 3261.
Often a CN comprises both PISNs employing QSIG and IP networks employing SIP. A call or call independent signalling can originate at a user connected to a PISN and terminate at a user connected to an IP network or vice versa. In either case, a gateway provides interworking between QSIG and SIP at the boundary between the PISN and the IP network. Basic call interworking at a gateway is specified in ISO/IEC 17343. Another case is where a call or call independent signalling originates at a user connected to a PISN, traverses an IP network using SIP, and terminates at a user connected to another (or another part of the same) PISN. This International Standard addresses this last case in a way that preserves all QSIG capabilities across the IP network. It achieves this by tunnelling QSIG messages within SIP requests and responses in the context of a SIP dialog.
The tunnelling of QSIG through a public IP network employing SIP 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., address translation, security functions, etc.).
This specification is applicable to any interworking unit that can act as a gateway between a PISN employing QSIG and a corporate IP network employing SIP, with QSIG tunnelled within SIP requests and responses.
文件格式：PDF
文件大小：2.60MB
文件页数：22
（以上信息更新时间为：2019-11-22）
ISO_IEC 22535-2006 信息技术.系统间远程通信和信息交换.联合远程通信网络.SIP上QSIG的隧道效应.pdf
(2.6 MB)
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