Section: 7.2 Group Call Area Identification
Content: Grouping of cells into specific group call areas occurs in support of both the Voice Group Call Service and the Voice Broadcast Service. These service areas are known by a "Group Call Area Identity" (Group Call Area Id). No restrictions are placed on what cells may be grouped into a given group call area. The Group Call Area ID is a number uniquely assigned to a group call area in one network and with a maximum value depending on the composition of the voice group call reference or voice broadcast reference defined under 7.3. The formats of the Group Call Area ID for VGCS and the Group Call Area ID for VBS are identical.