Table of Contents

Intellectual property rights
Foreword
0. Scope
   0.1 References
   0.2 Abbreviations
1. Call waiting (CW)
   1.1 Waiting call indication and confirmation
   1.2 Normal operation with successful outcome
   1.3 Normal operation with unsuccessful outcome
   1.4 Activation
   1.5 Deactivation
   1.6 Interrogation
   1.7 Invocation
   1.8 Registration and erasure
2. Call hold (HOLD)
   2.1 Normal operation
   2.2 Activation and deactivation
   2.3 Registration, erasure and interrogation
Annex A (informative): Change request history
History

Abstract

Defines 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 call completion 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.

General Product Information

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