Telephone system providing access to a telephone directory stored in a parent portable telephone unit for a plurality of child portable telephone units

摘要

In a telephone system, which is arranged by a parent telephone unit(1) and a plurality of child telephone units(2) capable of radio-communicating with the parent telephone unit(1), the parent telephone unit(1) includes a telephone number data storage table for storing a plurality of telephone number data indicative of a plurality of telephone numbers commonly useable by the plurality of child telephone units(2). Each of the plurality of child telephone units(2) issues a telephone number retrieve command as an issuing child telephone unit(2). The parent telephone unit(1) searches the telephone number data storage table in response to the telephone number retrieve command issued from the issuing child telephone unit(2) to output a searching result to said issuing child telephone unit(2). The issuing child telephone unit(2) receives the searching result outputted from the parent telephone unit(1) to output the received searching result to a user of the issuing child telephone unit(2). IMAGE