ETS 300 941 : 20001

Foreword
1 Scope
  1.1 Normative references
  1.2 Abbreviations
2 Generic procedures for the control of supplementary
  services
  2.1 Overview of the generic protocol and its scope
  2.2 Functional procedures for the control of
      supplementary services
3 Supplementary service support procedures
  3.1 General
  3.2 Supplementary service support establishment
  3.3 Supplementary service support information transfer
      phase
  3.4 Supplementary service support release
  3.5 Recovery procedures
  3.6 Message flow (single operation example)
  3.7 Handling of unknown, unforeseen, and erroneous
      protocol data
4 Password management
  4.1 Password check
  4.2 Password registration
  4.3 Cross phase compatibility
5 Supplementary service cross phase compatibility
  5.1 Cross phase, or cross protocol version,
      interworking
  5.2 Objectives
  5.3 Supplementary service compatibility philosophy
  5.4 Compatibility mechanisms
  5.5 SS compatibility procedures
  5.6 Development of future protocol versions
6 Forward Check SS Indication
Annex A (normative): Notation used for stage 3
        description of supplementary services
    A.1 General structure of the SS stage 3 diagrams
    A.2 Messages used to transport operations
    A.3 Contents of messages
Annex B (informative): Status of Technical
        Specification GSM 04.10
History

Provides the general aspects of the specification of supplementary services at the layer 3 radio interface are given. GSM 04.8x and 04.9x-series specify the procedures used at the radio interface (reference point Um as defined in GSM 04.02) for normal operation, registration, erasure, activation, deactivation, invocation and interrogation of supplementary services. Provision and withdrawal of supplementary services is an administrative matter between the mobile subscriber and the service provider and cause no signalling on the radio interface.