enhanced group call service code

voice group-call service

voice broadcast-call service

Closed User Group Call Indicator

enhanced group call

enhanced group call {= EGC}

enhanced group call system

geographical area group call

global service group

group broadcast

Group Call

Group Service

group service part

News group service

Point to multipoint group call PTM-G

Service Group

the group service of corporation application

Virtual Voice Group Call

voicedata group call