A cellular communication system comprising two or more short-range phone interface units (10, 10n) and a single cellular hub device: a. each of said two or more short-range phone interface units comprising the following hardware: i. a transceiver for providing short-range wireless communication with said cellular hub device; ii. a microphone; iii. an earphone; iv. a display; v. a keypad; and vi. first circuitry and a first memory having appropriate software stored thereon for controlling the operation of said hardware and for establishing a corresponding short-range wireless communication channel to said hub device; and b. said cellular hub device comprising: i. a transceiver for establishing short-range wireless communication with said two or more short-range phone interface units; ii. an antenna for transmitting and receiving high power RF communication signals to and from a cellular base station; iii. second circuitry and a second memory having appropriate software stored thereon, for allowing communication between said two or more short-range phone interface units via said corresponding short-range wireless communication channels; and iv. a user identification module, characterized in that each of said two or more short-range phone interface units lacks said antenna for transmitting and receiving high power RF communication signals to and from a cellular base station, yet comprises a SIM card for providing a unique identification code for authenticating communication with said cellular hub device. a. each of said two or more short-range phone interface units comprising the following hardware: i. a transceiver for providing short-range wireless communication with said cellular hub device; ii. a microphone; iii. an earphone; iv. a display; v. a keypad; and vi. first circuitry and a first memory having appropriate software stored thereon for controlling the operation of said hardware and for establishing a corresponding short-range wireless communication channel to said hub device; and i. a transceiver for providing short-range wireless communication with said cellular hub device; ii. a microphone; iii. an earphone; iv. a display; v. a keypad; and vi. first circuitry and a first memory having appropriate software stored thereon for controlling the operation of said hardware and for establishing a corresponding short-range wireless communication channel to said hub device; and b. said cellular hub device comprising: i. a transceiver for establishing short-range wireless communication with said two or more short-range phone interface units; ii. an antenna for transmitting and receiving high power RF communication signals to and from a cellular base station; iii. second circuitry and a second memory having appropriate software stored thereon, for allowing communication between said two or more short-range phone interface units via said corresponding short-range wireless communication channels; and iv. a user identification module, i. a transceiver for establishing short-range wireless communication with said two or more short-range phone interface units; ii. an antenna for transmitting and receiving high power RF communication signals to and from a cellular base station; iii. second circuitry and a second memory having appropriate software stored thereon, for allowing communication between said two or more short-range phone interface units via said corresponding short-range wireless communication channels; and iv. a user identification module,