A dispatch client device that also has a local wireless transceiver will monitor the energy level on the local transceiver side and use the energy level as a basis to function as a floor control client on a dispatch side. A radio resource control reconfiguration message is generated that indicates that an RLC unit in a wireless transmitreceive unit or a universal terrestrial radio access network should be reconfigured from supporting flexible size RLC protocol data units to supporting fixed size RLC PDUs. The server receives the configuration data from the computer and communicates the configuration data to a base station.