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3GPP (CT1)
TS 04.68














Group Call Control (GCC) Protocol

(P) GSM Rel-99 v8.1.0    2000/03    31 p.
(P) GSM Rel-98 v7.2.0    2000/03    31 p.
(P) GSM Rel-97 v6.3.0    2000/03    31 p.
(P) GSM Rel-96 v5.5.0    2000/03    32 p.

Rapporteur:  PATEL, Milan
Descendant(s):  TS 44.068    
See also:  VGCS-related TS/TR    

This TS specifies the Group Call Control (GCC) protocol used by the Voice Group Call Service (VGCS) on the radio interface.

1   Scope   PDF-p. 6
2   References
3   Definitions and abbreviations
4   Applicability
5   Main concepts
6   Elementary procedures for Group Call Control   PDF-p. 8
6.1   Overview
6.2   Procedures for establishment of a group call
6.3   Procedures during the active state of a group call
6.4   Procedures for release, abortion, and termination of a group call
6.5   Miscellaneous procedures   PDF-p. 17
7   Handling of unknown, unforeseen, and erroneous protocol data
8   Message functional definitions and contents   PDF-p. 20
9   Contents of information elements value parts      Up
A   Change Request History   PDF-p. 30