BS ISO/IEC 15505:1997

Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Definitions
    4.1 External definitions
    4.2 Other definitions
5 List of acronyms
6 SS-MWI stage 1 specification
    6.1 Description
          6.1.1 General description
          6.1.2 Qualifications on applicability to
                 telecommunication services
    6.2 Procedures
          6.2.1 Provision/withdrawal
          6.2.2 Normal procedures
          6.2.3 Exceptional procedures
    6.3 Interactions with other Supplementary Services/
          Additional Network Features
          6.3.1 Advice of Charge (AOC)
          6.3.2 Call Deflection (CD)
          6.3.3 Call Forwarding Unconditional (CFU)
          6.3.4 Call Forwarding No Reply (CFNR)
          6.3.6 Call Interception (CINT)
          6.3.7 Call Intrusion (CT)
          6.3.8 Call Offer (CO)
          6.3.9 Call Transfer (CT)
          6.3.10 Calling/Connected Line Identification
                  Restriction (CLIR)
          6.3.11 Calling/Connected Name Identification
                  Restriction (CNIR)
          6.3.12 Calling Line Identification Presentation
                  (CLIP)
          6.3.13 Calling Name Identification Presentation
                  (CNIP)
          6.3.14 Connected Line Identification
                  Presentation (COLP)
          6.3.15 Connected Name Identification Presentation
                  (CONP)
          6.3.16 Completion of Calls to Busy Subscribers
                  (CCBS)
          6.3.17 Completion of Calls on No Reply (CCNR)
          6.3.18 Do Not Disturb (DND)
          6.3.19 Do Not Disturb Override (DNDO)
          6.3.20 Path Replacement (PR)
          6.3.21 Recall (RE)
          6.3.22 Route Restriction Class (RRC)
     6.4 Interworking considerations
     6.5 Overall SDL
7 SS-MWI stage 2 specification
    7.1 Functional model
          7.1.1 Functional model description
          7.1.2 Description of Functional Entities
          7.1.3 Relationship of functional model to
                  Basic Call functional model
    7.2 Information flows
          7.2.1 Definition of information flows
          7.2.2 Relationship of information flows to
                  Basic Call information flows
          7.2.3 Information flow sequences
    7.3 Functional Entity actions
          7.3.1 Functional Entity actions of FE1
          7.3.2 Functional Entity actions of FE2
    7.4 Functional Entity behaviour
          7.4.1 Behaviour of FE1
          7.4.2 Behaviour of FE2
    7.5 Allocation of Functional Entities to physical
          equipment
    7.6 Interworking considerations

Defines supplementary service Message Waiting Indication (SS-MWI) related to various basic services supported by Private Integrated Services Networks (PISNs). Basic services are defined in ISO/IEC 11574. This service permits a Served User to be sent a Message Waiting Indication and also permits the cancellation of the Message Waiting Indication.