Table of Contents

Foreword
1 Scope
2 References
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 Description
5 Normal operation with successful outcome
  5.1 Provision
  5.2 Withdrawal
  5.3 Network related service configuration
  5.4 Normal operation for group call establishment
  5.5 Charging requirements
6 Exceptional procedures or unsuccessful outcome
7 Interaction with other GSM services
  7.1 Calling Line Identification Presentation (CLIP)
  7.2 Calling Line Identification Restriction (CLIR)
  7.3 Connected Line Identification Presentation (COLP)
  7.4 Connected Line Identification Restriction (COLR)
  7.5 Call Forwarding Unconditional (CFU)
  7.6 Call Forwarding on mobile subscriber Busy (CFB)
  7.7 Call Forwarding on No Reply (CFNRy)
  7.8 Call Forwarding on mobile subscriber Not
       Reachable (CFNRc)
  7.9 Call Waiting (CW)
  7.10 Call Hold (HOLD)
  7.11 Multi-party Service (MPTY)
  7.12 Closed User Group (CUG)
  7.13 Advice of Charge (AoC)
  7.14 Barring of All Outgoing Calls (BAOC)
  7.15 Barring of Outgoing International Calls (BOIC)
  7.16 Barring of Outgoing International Calls except
       those to the Home PLMN country (BOIC-exHC)
  7.17 Barring of All Incoming Calls (BAIC)
  7.18 Barring of Incoming Calls when Roaming outside
       the home PLMN country (BIC-Roam)
  7.19 Call Transfer (ECT)
  7.20 Completion of Calls to Busy Subscriber (CCBS)
  7.21 Enhanced Multi-Level Precedence and Pre-emption
       service (eMLPP)
  7.22 Short Message Service (SMS)
8 Interworking considerations
History

Abstract

Specifies the stage one description of the Voice Group Call Service (VGCS) which allows speech conversation of a predefined group of service subscribers in half duplex mode on the radio link taking into account multiple mobile service subscribers involved in the VGCS call per cell.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SMG 1