Abstract: Radio units of a radio communication system are grouped by selecting one or more radio units in the system to form a group, selecting an identification code for the group, determining an alphanumeric label for the group, sending a new group message to each of the selected radios containing the identification code and the label, and storing the code and the label at each of the selected radios. These operations may be performed by a dispatcher terminal for a radio communication system. Each radio unit of the radio communication system is configured to receive a regrouping message containing a group identification code and an alphanumeric label from the dispatcher terminal, and create a data record that represents the new group in its memory.