Computer hardware and software for use in complex dispatching control over radio networks in the field of professional radio communication

Molded external case for portable phones with extra battery holder and buttons that activate push-to-talk (PTT) functionality provided by downloadable software installed on the portable phone; cases that removably attach to portable phones to hold additional battery and provide control buttons to enable two-way PTT functionality; portable phone case and downloadable software that converts a phone into a multi-channel PTT handset

Computer programs for use in complex dispatching control over radio networks in the field of professional radio communication; downloadable computer programs for use in complex dispatching control over radio networks in the field of professional radio communication

Computer hardware and software for use in complex dispatching control over radio networks in the field of professional radio communication