ETS 300 933 : 20005

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Main concepts
   4.1 Group definition
   4.2 Group conversations
5 General architecture
   5.1 Group Call Register (GCR)
   5.2 Voice group call responsibility
6 Compatibility issues
7 Transmission
   7.1 Transmission architecture
   7.2 Radio channels
   7.3 Data confidentiality
8 Information storage
   8.1 Information stored in the GCR
   8.2 Information managed per subscriber
   8.3 Information used for routing of dispatcher
       originated voice group calls
9 Identities
   9.1 Elementary identities for group calls
   9.2 Use of identities in the network
10 Operation and maintenance aspects
11 Function and information flows
   11.1 Group management
   11.2 Group membership management
   11.3 Call management
   11.4 Functional requirement of Anchor MSC
   11.5 Functional requirement of Relay MSC
   11.6 Functional requirement of GCR
   11.7 Functional requirement of VLR
12 Content of messages
   12.1 Messages on the B-interface (MSC-VLR)
   12.2 Messages on the E-interface (MSC-MSC)
   12.3 Messages on the I-interface (MSC-GCR)
Annex A (informative): Status of GSM 03.68
History

ASCI ph1 option pruning (routing or VBS/VGCS calls). Update to cover inter-MSC Voice group calls.