EMERGENCY PUSH-TO-TALK CALL SETUP AT DIFFERENT PRIORITY LEVELS BASED ON SUPERGROUPS

摘要

A method is provided that sets up a Push-To-Talk (PTT) call. A first group is given a first value of an attribute, such as the priority of the PTT call or the state of the PTT call. A second group is given a second value of the attribute, such that the second value of the attribute is different from the first value of the attribute.