FIELD: communication equipment, in particular, for data transmission. SUBSTANCE: device has main second housing member and first mobile housing member, circuit, display with sensitive screen and switch. In closed position, device has first set of hand-set functions, including entering telephone number, transmission and reception of telephone calls. In open position device has another set of user functions, which includes standard hand-set functions, extended hand-set functions and data transmission functions. Switch outputs signal in response to movement of mobile housing member into open position. This results in commutation of device between first and second sets of user functions. EFFECT: possibility of several radio communication functions, including mobile communication, e-mail, fax communication, and so on. 8 cl, 5 dwg
