ISO/IEC 15505:2003 PDF

Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Message Waiting Indication supplementary service

First page of standard ISO/IEC 15505:2003

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Title (English):

ISO/IEC 15505:2003

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 17
Publication date:: April 8, 2003
Edition:: ISO/IEC IS 15505 edition 3 version 1
ICS:: 33.040.35

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Description (English):

ISO/IEC 15505:2003 specifies supplementary service Message Waiting Indication (SS-MWI), which is related, but not limited, to various basic services supported by Private Integrated Services Networks (PISNs). Basic services are specified in ISO/IEC 11574. This supplementary service MWI enables a Served User to be sent a Message Waiting Indication and also enables this Message Waiting Indication to be cancelled. Service specifications are produced in three stages, according to the method described in ETS 300 387. ISO/IEC 15505:2003 contains the stage 1 and stage 2 specifications of SS-MWI. The stage 1 specification (clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification (clause 7) specifies the functional entities involved in the supplementary service and the information flows between them.

Technical details

Technical committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
SKU: ISO/IEC 15505:2003

Abstract

Overview

ISO/IEC 15505:2003 defines the Message Waiting Indication (SS‑MWI) supplementary service for Private Integrated Services Networks (PISNs). The standard contains stage 1 (service view for users) and stage 2 (functional model and information flows) specifications. SS‑MWI enables a Message Centre to signal that messages are waiting for a Served User and to cancel that indication. The document describes activation, deactivation, interrogation procedures, functional entities (FE1/FE2), and dynamic behaviour (expressed in SDL).

Key topics and technical requirements

Service scope: SS‑MWI relates to basic services (see ISO/IEC 11574) and informs users when messages are waiting; the visible indication (lamp, tone, display) is out of scope.
Stages covered:
- Stage 1 (clause 6): user-oriented behaviour - provision/withdrawal, normal and exceptional procedures for activation, deactivation, interrogation.
- Stage 2 (clause 7): functional model - definitions of Functional Entities (FE1 Message Centre control entity, FE2 Served User control entity), relationships and information flows.
Procedures:
- Activation/Deactivation: Message Centre supplies PISN number and service; optional information may include Message Centre identity, number of messages, originator address, timestamp, and message priority.
- Interrogation: Served User may query status for one or all services; Message Centre returns activation state and optionally the additional information above.
- Acknowledgement: Message Centre is given acceptance indication after activation/deactivation.
Functional behaviour:
- Overall dynamic behaviour modeled in Specification and Description Language (SDL) illustrating idle, activate, deactivate and interrogation flows.
- Stage 2 details information flow sequences, FE actions, behaviour and allocation to equipment.
Interworking: Guidance for accepting MWIs from other networks or sending MWIs to Served Users in other networks.
Conformance: A stage 3 specification (signalling protocols and equipment behaviour) is required to claim conformance to aspects of stage 1 and 2.

Applications and users

Who uses ISO/IEC 15505:2003:

Telecom equipment manufacturers (PISN/PBX vendors) designing Message Centre or user endpoint behaviour.
Network architects and service providers implementing voicemail, unified messaging or notification features in private networks.
Standards developers producing stage 3 signalling protocols that must support SS‑MWI semantics.
Test and QA teams validating activation/deactivation/interrogation flows and interworking.

Practical applications:

Implementing reliable message waiting lamps, tones or display updates driven by backend message stores.
Defining interfaces between voicemail/message centres and PISN exchanges.
Ensuring consistent user experience and cross‑network interworking for message notifications.

Related standards

ISO/IEC 11574 (basic PISN services)
ISO/IEC 11579‑1 (PINX reference configuration)
ETS 300 387 (method for service specification stages)
ITU‑T Z.100 (SDL specification)

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key topics and technical requirements

Service scope: SS‑MWI relates to basic services (see ISO/IEC 11574) and informs users when messages are waiting; the visible indication (lamp, tone, display) is out of scope.
Stages covered:
- Stage 1 (clause 6): user-oriented behaviour - provision/withdrawal, normal and exceptional procedures for activation, deactivation, interrogation.
- Stage 2 (clause 7): functional model - definitions of Functional Entities (FE1 Message Centre control entity, FE2 Served User control entity), relationships and information flows.
Procedures:
- Activation/Deactivation: Message Centre supplies PISN number and service; optional information may include Message Centre identity, number of messages, originator address, timestamp, and message priority.
- Interrogation: Served User may query status for one or all services; Message Centre returns activation state and optionally the additional information above.
- Acknowledgement: Message Centre is given acceptance indication after activation/deactivation.
Functional behaviour:
- Overall dynamic behaviour modeled in Specification and Description Language (SDL) illustrating idle, activate, deactivate and interrogation flows.
- Stage 2 details information flow sequences, FE actions, behaviour and allocation to equipment.
Interworking: Guidance for accepting MWIs from other networks or sending MWIs to Served Users in other networks.
Conformance: A stage 3 specification (signalling protocols and equipment behaviour) is required to claim conformance to aspects of stage 1 and 2.

Applications and users

Who uses ISO/IEC 15505:2003:

Telecom equipment manufacturers (PISN/PBX vendors) designing Message Centre or user endpoint behaviour.
Network architects and service providers implementing voicemail, unified messaging or notification features in private networks.
Standards developers producing stage 3 signalling protocols that must support SS‑MWI semantics.
Test and QA teams validating activation/deactivation/interrogation flows and interworking.

Practical applications:

Implementing reliable message waiting lamps, tones or display updates driven by backend message stores.
Defining interfaces between voicemail/message centres and PISN exchanges.
Ensuring consistent user experience and cross‑network interworking for message notifications.

Related standards

ISO/IEC 11574 (basic PISN services)
ISO/IEC 11579‑1 (PINX reference configuration)
ETS 300 387 (method for service specification stages)
ITU‑T Z.100 (SDL specification)

ISO/IEC 15505:2003 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

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