NEXEDGE was first to market with on-the-fly configuration of work groups for rapid collaboration with secure voiceor text communications and it is the only digital to offer Over the Air alias. Broadcast Group Call is a one way voice feature that allows a designated individual to call either a specific Group or all subscriber units for vital information such as emergency evacuation instructions. Associated Group ID allows a user to register and monitor more than one talk group even though no other users on the talk group are registered at that site.