Telephone (PHM): Components

Fig 1: Identifying Telephone (PHM) Components

Courtesy of VOLVO CARS OF NORTH AMERICA.

1. GPS receiver, processor
2. GPS receiver, radio receiver
3. Built-in back-up battery
4. Built-in back-up antenna
5. AMPS module
6. Modem for data communication, AMPS
7. SOS button
8. On Call button

Additional components/functions compared with the conventional telephone are: 

• buttons for SOS and On Call services,
• GPS antenna,
• GPS receiver,
• built-in back-up battery,
• built-in back-up antenna,
• AMPS modem.