Table of Contents

Intellectual property rights
Foreword
1. Scope
2. References
3. Definitions and abbreviations
    3.1 Definitions
    3.2 Abbreviations
4. General
    4.1 Activation of UUS components
5. Handling of user-to-user signalling
    5.1 Timers
    5.2 Information flows of UUS services
    5.3 Messages and their contents
6. Interaction with other supplementary services
    6.1 Call forwarding unconditional (CFU)
    6.2 Call forwarding on mobile subscriber busy (CFB)
    6.3 Call forwarding on no reply (CFNRy)
    6.4 Call forwarding on mobile subscriber not reachable
         (CFNRc)
    6.5 Call waiting (CW)
    6.6 Call hold (CH)
    6.7 Completion of calls to busy subscribers (CCBS)
    6.8 Explicit call transfer (ECT)
    6.9 Multi party service (MPTY)
    6.10 Advice of charge (AoC)
    6.11 Barring of outgoing calls (BAOC)
    6.12 Barring of outgoing calls (BOIC)
    6.13 Barring of outgoing international calls except those
         directed to the home PLMN country (BOIC-exHC)
    6.14 Barring of incoming calls (BAIC)
    6.15 Barring of incoming calls when roaming outside the
         home PLMN country (BIC-Roam)
7. Interaction with other network features
    7.1 Customised Applications for Mobile network enhanced
         logic (CAMEL)
    7.2 Support for Optimal Routeing(SOR)
8. Interworking with other networks
    8.1 Interworking with GSM PLMN/ISDN network supporting
         only a maximum User-user information element length of
         35 octets
    8.2 Interworking with non-ISDN network
9. Network entity functions
    9.1 Originating network process
    9.2 Terminating network process
    9.3 Procedures common in serving and remote networks
    9.4 Processes used during Active call
10. Information stored in the HLR and in the VLR
    10.1 Information stored in the HLR
    10.2 Transfer of information from HLR to VLR
    10.3 Information stored in the VLR
11. State transition model
12. Handover
Annex A (informative): Status of Technical Specification
        GSM 03.87
History

Abstract

Gives the stage 2 description of the User-to-User signalling supplementary services.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SMG 3