Mobile terminal device, remote notification method and recording medium

When detecting that an other cellular phone device 1 is present in the vicinity of a local cellular phone device 1 through a short-range wireless communication unit 24, a CPU 11 receives and acquires a communication-partner ID from the other cellular phone device 1 through the short-range wireless communication unit 24. Next, the CPU 11 creates a e-mail indicating that the communication partner is present in the vicinity of the local cellular phone device based on the communication-partner ID. Further, the CPU 11 sends a predetermined communication terminal 4 of the created e-mail from a telephone communication unit 15 through a public mobile communication network 2.