A mobile communication device, comprising: a short-range communication unit configured to: enable the mobile communication device to perform a communication with another mobile communication device over a radio communication network, and establishing a short-range wireless communication connection between the mobile communication device and the other mobile communication device in response to detecting a predetermined effective vibration event; and a call transfer setting unit configured to: receiving, by the mobile communication device, a phone number of the other mobile communication device from the other mobile communication device via the established short-range wireless communication connection; and setting, by the mobile communication device, a call from the mobile communication device to be transferred to the received phone number; a vibration detecting unit configured to: detect a vibration of the mobile communication device, caused by impacting the first mobile communication device and the other mobile communication device with each other in a predetermined way, so that each of them detects the predetermined effective vibration event, acquire the vibration response profile of the vibration, detect, based on the vibration response profile, a vibration of which the vibration response has an intensity and an effective width within respective predetermined ranges as the predetermined effective vibration event, wherein the effective width indicates a duration for which the intensity of the vibration response profile is continuously above a predetermined threshold; and an application activating unit configured to be triggered in response to the effective vibration event being detected by the vibration detecting unit, so as to activate the transferring of the call to the received phone number. a short-range communication unit configured to: enable the mobile communication device to perform a communication with another mobile communication device over a radio communication network, and establishing a short-range wireless communication connection between the mobile communication device and the other mobile communication device in response to detecting a predetermined effective vibration event; and enable the mobile communication device to perform a communication with another mobile communication device over a radio communication network, and establishing a short-range wireless communication connection between the mobile communication device and the other mobile communication device in response to detecting a predetermined effective vibration event; and a call transfer setting unit configured to: receiving, by the mobile communication device, a phone number of the other mobile communication device from the other mobile communication device via the established short-range wireless communication connection; and setting, by the mobile communication device, a call from the mobile communication device to be transferred to the received phone number; receiving, by the mobile communication device, a phone number of the other mobile communication device from the other mobile communication device via the established short-range wireless communication connection; and setting, by the mobile communication device, a call from the mobile communication device to be transferred to the received phone number; a vibration detecting unit configured to: detect a vibration of the mobile communication device, caused by impacting the first mobile communication device and the other mobile communication device with each other in a predetermined way, so that each of them detects the predetermined effective vibration event, acquire the vibration response profile of the vibration, detect, based on the vibration response profile, a vibration of which the vibration response has an intensity and an effective width within respective predetermined ranges as the predetermined effective vibration event, detect a vibration of the mobile communication device, caused by impacting the first mobile communication device and the other mobile communication device with each other in a predetermined way, so that each of them detects the predetermined effective vibration event, acquire the vibration response profile of the vibration, detect, based on the vibration response profile, a vibration of which the vibration response has an intensity and an effective width within respective predetermined ranges as the predetermined effective vibration event, wherein the effective width indicates a duration for which the intensity of the vibration response profile is continuously above a predetermined threshold; and an application activating unit configured to be triggered in response to the effective vibration event being detected by the vibration detecting unit, so as to activate the transferring of the call to the received phone number.