ISO/IEC 15505:2003
(Main)Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Message Waiting Indication supplementary service
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Message Waiting Indication supplementary service
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.
Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services — Spécifications, modèle fonctionnel et flux d'informations — Service supplémentaire d'indication d'attente de message
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INTERNATIONAL ISO/IEC
STANDARD 15505
Third edition
2003-04-01
Information technology —
Telecommunications and information
exchange between systems — Private
Integrated Services Network —
Specification, functional model and
information flows — Message Waiting
Indication supplementary service
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseau privé à intégration de
services — Spécifications, modèle fonctionnel et flux d'informations —
Service supplémentaire d'indication d'attente de message
Reference number
ISO/IEC 15505:2003(E)
©
ISO/IEC 2003
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ISO/IEC 15505:2003(E)
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ISO/IEC 15505:2003(E)
Contents
Foreword v
Introduction vi
1 Scope 1
2 Conformance 1
3 Normative references 1
4 Definitions 1
4.1 External definitions 1
4.2 Other definitions 2
4.2.1 Served User 2
4.2.2 Message Centre 2
4.2.3 Message Waiting Indication 2
5 List of acronyms 2
6 SS-MWI stage 1 specification 2
6.1 Description 2
6.1.1 General description 2
6.1.2 Qualifications on applicability to telecommunication services 2
6.2 Procedures 2
6.2.1 Provision / withdrawal 2
6.2.2 Normal procedures 2
6.2.3 Exceptional procedures 3
6.3 Interactions with other Supplementary Services / Additional Network Features 3
6.3.1 Advice of Charge (AOC) 3
6.3.2 Call Deflection (CD) 3
6.3.3 Call Forwarding Unconditional (CFU) 3
6.3.4 Call Forwarding Busy (CFB) 3
6.3.5 Call Forwarding No Reply (CFNR) 3
6.3.6 Call Interception (CINT) 4
6.3.7 Call Intrusion (CI) 4
6.3.8 Call Offer (CO) 4
6.3.9 Call Transfer (CT) 4
6.3.10 Calling/Connected Line Identification Restriction (CLIR) 4
6.3.11 Calling/Connected Name Identification Restriction (CNIR) 4
6.3.12 Calling Line Identification Presentation (CLIP) 4
6.3.13 Calling Name Identification Presentation (CNIP) 4
6.3.14 Connected Line Identification Presentation (COLP) 4
6.3.15 Connected Name Identification Presentation (CONP) 4
6.3.16 Completion of Calls to Busy Subscribers (CCBS) 4
6.3.17 Completion of Calls on No Reply (CCNR) 4
6.3.18 Do Not Disturb (DND) 4
6.3.19 Do Not Disturb Override (DNDO) 4
6.3.20 Path Replacement (PR) 4
6.3.21 Recall (RE) 4
6.3.22 Route Restriction Class (RRC) 4
6.3.23 Wireless Terminal Location Registration (WTLR) 4
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ISO/IEC 15505:2003(E)
6.3.24 Wireless Terminal Mobility Incoming Call (WTMI) 4
6.3.25 Wireless Terminal Mobility Outgoing Call (WTMO) 4
6.3.26 Authentication of a WTM user (WTAT) 5
6.3.27 Authentication of the PISN (WTAN) 5
6.4 Interworking considerations 5
6.5 Overall SDL 5
7 SS-MWI stage 2 specification 8
7.1 Functional model 8
7.1.1 Functional model description 8
7.1.2 Description of Functional Entities 8
7.1.3 Relationship of functional model to Basic Call functional model 8
7.2 Information flows 8
7.2.1 Definition of information flows 8
7.2.2 Relationship of information flows to Basic Call information flows 11
7.2.3 Information flow sequences 12
7.3 Functional Entity actions 14
7.3.1 Functional Entity actions of FE1 14
7.3.2 Functional Entity actions of FE2 14
7.4 Functional Entity behaviour 15
7.4.1 Behaviour of FE1 15
7.4.2 Behaviour of FE2 16
7.5 Allocation of Functional Entities to physical equipment 17
7.6 Interworking considerations 17
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ISO/IEC 15505:2003(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form
the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the
development of International Standards through technical committees established by the respective organization to deal
with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest.
Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the
work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International Standards
adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO
and IEC shall not be held responsible for identifying any or all such patent rights.
ISO/IEC 15505 was prepared by ECMA (as ECMA-241) and was adopted, under a special “fast-track procedure”, by
Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval by national bodies of
ISO and IEC.
This third edition cancels and replaces the first edition (ISO/IEC 15505:2000), which has been technically revised.
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ISO/IEC 15505:2003(E)
Introduction
This International Standard is one of a series of Standards defining services and signalling protocols applicable to Private
Integrated Services Networks (PISNs). The series uses ISDN concepts as developed by ITU-T and conforms to the framework
of International Standards for Open Systems Interconnection as defined by ISO/IEC.
This International Standard specifies the Message Waiting Indication supplementary service.
This International Standard is based upon the practical experience of ECMA member companies and the results of their active
and continuous participation in the work of ISO/IEC JTC 1, ITU-T, ETSI and other international and national standardization
bodies. It represents a pragmatic and widely based consensus.
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INTERNATIONAL STANDARD ISO/IEC 15505:2003(E)
Information technology — Telecommunications and information exchange
between systems — Private Integrated Services Network — Specification,
functional model and information flows — Message Waiting Indication
supplementary service
1Scope
This International Standard 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. This International
Standard 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.
2 Conformance
In order to conform to this International Standard, a stage 3 standard shall specify signalling protocols and equipment
behaviour that are capable of being used in a PISN which supports the supplementary service specified in this International
Standard. This means that, to claim conformance, a stage 3 standard is required to be adequate for the support of those aspects
of clause 6 (stage 1) and clause 7 (stage 2) which are relevant to the interface or equipment to which the stage 3 standard
applies.
3 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the
edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)
applies.
ISO/IEC 11574:2000, Information technology - Telecommunications and information exchange between systems - Private
Integrated Services Network - Circuit-mode 64 kbit/s bearer services - Service description, functional capabilities and
information flows
ISO/IEC 11579-1:1994, Information technology - Telecommunications and information exchange between systems - Private
integrated services network - Part 1: Reference configuration for PISN Exchanges (PINX)
ETS 300 387:1994, Private Telecommunication Network (PTN); Method for the specification of basic and supplementary
services
ITU-T Rec. I.112:1993, Vocabulary of terms for ISDNs
ITU-T Rec. I.210:1993, Principles of telecommunication services supported by an ISDN and the means to describe them
ITU-T Rec. Z.100:1999, Specification and description language (SDL)
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4.1 External definitions
This International Standard uses the following terms defined in other documents:
− Basic Service (ITU-T Rec. I.210)
− Private Integrated services Network eXchange (PINX) (ISO/IEC 11579-1)
− Private Integrated Services Network (PISN) (ISO/IEC 11579-1)
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ISO/IEC 15505:2003(E)
− Service (ITU-T Rec. I.112)
− Signalling (ITU-T Rec. I.112)
− Supplementary Service (ITU-T Rec. I.210)
− User (ISO/IEC 11574)
4.2 Other definitions
4.2.1 Served User
The user to whom the Message Waiting Indication is sent on initiative of the Message Centre.
4.2.2 Message Centre
The entity which activates or deactivates the Message Waiting Indication as a result of the storage or retrieval of messages.
4.2.3 Message Waiting Indication
An indication to the Served User when messages are waiting for the Served User.
NOTE - The indication may be a lamp, special tone, display etc. This is outside the scope of this International Standard.
5 List of acronyms
ANF Additional Network Feature
FE Functional Entity
ISDN Integrated Services Digital Network
MWI Message Waiting Indication
PINX Private Integrated services Network eXchange
PISN Private Integrated Services Network
SDL Specification and Description Language
SS Supplementary Service
6 SS-MWI stage 1 specification
6.1 Description
6.1.1 General description
The supplementary service MWI enables a Served User to be sent a Message Waiting Indication and also enables this Message
Waiting Indication to be cancelled.
NOTE - The Message Waiting Indication is sent on activation by the Message Centre.
NOTE - The Message Waiting Indication is cancelled on deactivation by the Message Centre.
A Served User can receive separate MWIs for each of the services for which there is a message waiting.
NOTE - A service for which there is a message waiting would normally use the related basic service to retrieve that message.
6.1.2 Qualifications on applicability to telecommunication services
This supplementary service does not apply directly to any basic telecommunication service. However, a MWI relates to a basic
service for which there are messages waiting.
6.2 Procedures
6.2.1 Provision / withdrawal
SS-MWI may be provided or withdrawn after pre-arrangement with the service provider or may be generally available to all
users.
6.2.2 Normal procedures
6.2.2.1 Activation, deactivation and interrogation
The PISN shall provide activation / deactivation by the Message Centre. In addition, the PISN may provide interrogation by the
Served User.
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ISO/IEC 15505:2003(E)
To activate SS-MWI, the Message Centre shall supply the PISN number and the service for which there is a message waiting
and may, as an implementation option, add any combination of the following pieces of information: the identity of the Message
Centre; the number of messages waiting for the Served User for that service; the address of the user that left a message; the
time when a message was left; the priority of the highest priority message waiting for that service. After activation, SS-MWI
may be activated again whenever the number of waiting messages changes.
To deactivate SS-MWI, the Message Centre shall supply the PISN number and the service for which there is no longer a
message waiting.
As a result of activation, a MWI shall be sent to the Served User. The MWI may include information on messages waiting, if
provided by the Message Centre. As a result of deactivation, the MWI at the Served User, for the service concerned, shall be
cancelled.
When the Message Centre activates or deactivates SS-MWI at the Served User, it shall be provided with an indication of
acceptance.
When the Served User interrogates SS-MWI for a particular service, the Message Centre shall provide the Served User with an
indication of whether SS-MWI is activated for that service and may add, as an implementation option, any of the following
information:
• the identity of the Message Centre;
• the number of messages waiting;
• the address of the user that left a message;
• the time when a message was left;
• the priority of the highest priority message waiting.
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