ISO/IEC 21992:2003
(Main)Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Mapping functions for the tunnelling of QSIG through IP networks
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Mapping functions for the tunnelling of QSIG through IP networks
ISO/IEC 21992:2003(E) specifies functions for using a packet network that uses the Internet Protocol (IP) as its network layer protocol and UDP and TCP as its transport layer protocols, to interconnect two Private Integrated services Network eXchanges (PINXs) forming part of a Private Integrated Services Network (PISN). Interconnection is achieved by carrying the inter-PINX signalling protocol directly over the Transmission Control Protocol (TCP) and inter-PINX user information (e.g. voice) over the Real-time Transport Protocol (RTP), RTP being carried over the User Datagram Protocol (UDP). The inter-PINX signalling protocol is assumed to be QSIG, as specified in ISO/IEC 11572, ISO/IEC 11582 and other International Standards. ISO/IEC 21992:2003(E) provides for two types of interconnection: on-demand, where a separate TCP connection for QSIG is established at the start of each call and cleared down at the end of that call; and semi-permanent, where a single TCP connection with an indefinite lifetime carries QSIG on behalf of many single calls. ISO/IEC 21992:2003(E) is applicable to PINXs that can be interconnected to form a PISN using QSIG as the inter-PINX signalling protocol.
Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services — Tracé de fonctions pour le "tunnelling" de QSIG par des réseaux IP
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Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 21992
First edition
2003-06-01
Information technology —
Telecommunications and information
exchange between systems — Private
Integrated Services Network — Mapping
functions for the tunnelling of QSIG
through IP networks
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseau privé à intégration de
services — Tracé de fonctions pour le «tunnelling» de QSIG par des
réseaux IP
Reference number
ISO/IEC 21992:2003(E)
©
ISO/IEC 2003
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ISO/IEC 21992:2003(E)
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ISO/IEC 21992:2003(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Conformance. 1
3 Normative references. 1
4 Terms and definitions. 2
4.1 External definitions. 2
4.2 Other definitions. 2
5 List of acronyms . 3
6 Introduction. 3
6.1 Reference configuration. 3
6.2 Specific scenarios. 4
7 Capabilities at the Q reference point . 4
8 Capabilities at the C reference point. 5
8.1 TCP connection. 5
8.2 UDP streams. 6
9 Mapping functions. 6
9.1 Mapping the D -channel. 6
Q
9.2 Mapping a U -channel .
...
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