ISO IEC 15428-1999 PDF

Full title and description

ISO/IEC 15428:1999 — Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network (PISN) — Specification, functional model and information flows — Wireless Terminal Location Registration supplementary service and Wireless Terminal Information Exchange additional network feature. This International Standard specifies the Wireless Terminal Location Registration (SS‑WTLR) supplementary service and the Wireless Terminal Information Exchange (ANF‑WTINFO) additional network feature for PISNs, including stage 1 (service as seen by users) and stage 2 (functional entities and information flows) specifications.

Abstract

This standard defines how wireless terminal users register and de‑register their location within a Private Integrated Services Network (PISN) and how related user information is exchanged between home and visitor databases. It provides functional models and message/information‑flow descriptions (stage 1 and stage 2) required to support the Wireless Terminal Location Registration supplementary service (SS‑WTLR) and the Wireless Terminal Information Exchange additional network feature (ANF‑WTINFO) across PISN basic services.

General information

• Status: Published (International Standard)
• Publication date: 1999-11-04
• Publisher: ISO/IEC (JTC 1/SC 6 — Telecommunications and information exchange between systems)
• ICS / categories: 33.040.35 (Telecommunications)
• Edition / version: Edition 1.0 (1999)
• Number of pages: 29

Scope

The scope covers specification of the SS‑WTLR supplementary service and the ANF‑WTINFO additional network feature as they apply to various basic services supported by Private Integrated Services Networks. It specifies user‑visible service behavior (stage 1) and the required functional entities and information flows between Home and Visitor databases (stage 2). The standard references the PISN basic‑service definitions (see ISO/IEC 11574) and follows the three‑stage service/feature specification method described in CCITT Recommendation I.130.

Key topics and requirements

• Definition of the Wireless Terminal Location Registration supplementary service (SS‑WTLR): registration and de‑registration behaviors for wireless terminal mobility within a PISN.
• Specification of the Wireless Terminal Information Exchange additional network feature (ANF‑WTINFO) for transferring WTLR user information between Home and Visitor databases.
• Stage 1 (service view) and Stage 2 (functional model and information flows) specifications, including required functional entities and message flows.
• Interoperability requirements with PISN basic services (referencing ISO/IEC 11574).
• Use of the CCITT/ITU recommended three‑stage method for supplementary service and ANF specifications.

Typical use and users

Primary users include telecommunications standards specialists, PISN implementers, network equipment vendors, mobile/wireless system designers working with private branch networks, and standards bodies developing or harmonizing supplementary services and network features for enterprise/closed telecommunication environments.

Related standards

Normative or closely related documents and subsequent items in the PISN family include ISO/IEC 11574 (PISN basic services) and related ISO/IEC 1542x–1543x series entries that address signalling protocols and other PISN features (for example, ISO/IEC 15429:2003 and ISO/IEC 15430:1999 are neighbouring items in the series addressing related PISN functions and signalling). Implementers should review the PISN series for interoperability and signalling details.

Keywords

Private Integrated Services Network (PISN), Wireless Terminal Location Registration, SS‑WTLR, Wireless Terminal Information Exchange, ANF‑WTINFO, supplementary service, additional network feature, functional model, information flows, ISO/IEC JTC 1/SC 6.

FAQ

Q: What is this standard?

A: ISO/IEC 15428:1999 is an international standard that specifies the Wireless Terminal Location Registration supplementary service and the Wireless Terminal Information Exchange additional network feature for Private Integrated Services Networks (PISN), providing service definitions and stage‑2 functional models and information flows.

Q: What does it cover?

A: It covers user‑visible service behavior (registration/de‑registration) for wireless terminals within a PISN and the mechanisms for exchanging related user/location information between Home and Visitor databases, including the functional entities and message flows required to support those features.

Q: Who typically uses it?

A: Telecommunications engineers, PISN equipment vendors, enterprise network architects, protocol implementers and standards developers working on private/enterprise telephony and wireless terminal mobility features.

Q: Is it current or superseded?

A: Published in 1999 (Edition 1.0). The IEC webstore lists it as the published International Standard (1999‑11‑04) with no replacement shown on that record; users needing the definitive current lifecycle (confirmed/revised/withdrawn) should verify the latest status with ISO or IEC catalogues or their national standards body.

Q: Is it part of a series?

A: Yes — it is part of a set of PISN / private network standards and is associated with other ISO/IEC 1542x–1543x items that specify signalling protocols, call handling and related PISN features; implementers should consult the broader series (for example ISO/IEC 15429 and ISO/IEC 15430) for complementary specifications.

Q: What are the key keywords?

A: PISN, Wireless Terminal Location Registration (WTLR), SS‑WTLR, Wireless Terminal Information Exchange (WTINFO), ANF‑WTINFO, supplementary service, additional network feature, functional model, information flows.