Patent ID: 7711827

Claim:
A communication system comprising: a first communication terminal provided with an ID tag and having a communication function for a first medium; a second communication terminal provided with an ID reader and having a communication function for a second medium different from the first medium; and a communication server connected to said first and said second communication terminals; said ID tag storing terminal address information representative of an address of said first communication terminal, said second communication terminal informing, when said ID reader reads, as readout address information, the terminal address information from the ID tag of said first communication terminal, the readout address information to said communication server, said communication server carrying out registration of registering said first and said second communication terminals as a single communication terminal having the communication functions for said first and said second media when said communication server is supplied from said second communication terminal with the address of said first communication terminal as said readout address information, said communication server has an administration table which preliminarily memorizes, as setting information, terminal numbers of said first and said second communication terminals and, in correspondence to the terminal numbers of said first and said second communication terminals, addresses of said first and said second communication terminals and said first and said second media as communicable media of said first and said second communication terminals, and said communication server rewriting, when said communication server is supplied from said second communication terminal with the address of said first communication terminal as said readout address information, the terminal number of said second communication terminal in said administration table into a number same as the terminal number of said first communication terminal so that said communication server carries out the registration of registering said first and said second communication terminals as a single communication terminal having the communication functions for said first and said second media.