摘要:
A system for preventing a portable terminal from being left is characterized in that the portable terminal sounds an alarm when a signal from a wireless terminal can no longer be received, terminates sounding of the alarm after a predetermined amount of time passes, and makes a transition to a lock standby state.
摘要:
A system for preventing a portable terminal from being left is characterized in that the portable terminal sounds an alarm when a signal from a wireless terminal can no longer be received, terminates sounding of the alarm after a predetermined amount of time passes, and makes a transition to a lock standby state.