Automatic call transfer system capable of carrying out call transfer without manual operation

Claim 1

In an automatic call transfer system for use in automatically carrying out transfer of a call by the use of an exchange which is coupled through subscriber lines to telephone sets, respectively, said telephone sets being specified by line numbers corresponding to said subscriber lines, respectively, and being distributed in an area so as to be utilized by persons movable in said area, the improvement wherein: a person identification number is assigned to each of specific ones of said persons so as to identify said each specific person; said system comprising: a plurality of receiving means coupled to said exchange and having receivable zones into which said area is divided so that at least one of said telephone sets is included in each of said receivable zones, each of said receiving means being for receiving an identification number signal representative of said person identification number; and signal generating means conveyed by said each specific person for generating said identification number signal such that it is received by a selected one of said receiving means when said each specific person is staying in the receivable zone for said selected one of said receiving means; said exchange comprising: memory means coupled to said receivers for memorizing specific at least one of the line numbers of the receivable zone for said selected one of said receiving means in correspondence to said identification number signal; and call transferring means coupled to said memory means and responsive to the call carrying said person identification number for transferring the call to the telephone set specified by said specific at least one of said line numbers with reference to the memorized identification number signal.