Patent ID: 8073484

Claim:
A mobile terminal device comprising: a short-range communication unit which performs direct short-range communication with another communication terminal present within a vicinity of an area in which radio waves arrive from the direct short-range communication; a long-range communication unit which performs long-range communication with a predetermined communication terminal through a network; a table in which communication-partner information is registered to identify a possessor of the another communication terminal; a detection unit which detects the another communication terminal by performing an automatic communication with another short-range communication unit of the another communication terminal using the short-range communication unit of the mobile terminal device; an acquisition unit which acquires communication-partner identification information from the another communication terminal through the short-range communication unit to identify that the possessor of the another communication terminal is registered when the detection unit detects that the another communication terminal is present within the vicinity of the mobile terminal device; and a notification unit which creates an e-mail containing neighborhood information relating to a partner who is the possessor of the another communication terminal based on the communication-partner identification information acquired by the acquisition unit and information registered in the table, and notifies the predetermined communication terminal of the created e-mail through the long-range communication unit.