Patent ID: 7200410

Claim:
A portable telephone comprising: communication means which performs radio communication by transmission and reception of radio waves; transmission and reception stopping means which enables stopping radio wave transmission or transmission and reception of the communication means; notification means disposed at a location such that a third person is notified that radio wave transmission or transmission and reception is in a stop state; control means which controls the transmission and reception stopping means to deactivate the radio wave transmission or transmission and reception when a function other than a function utilizing radio wave transmission or transmission and reception is being performed, and which controls the notification means such that a third person is notified that radio wave transmission or transmission and reception is in a stop state; and an operation key for canceling the stop state of radio wave transmission or transmission and reception stopped by the transmission and reception stopping means, wherein the control means cancels the stop state of radio wave transmission or transmission and reception stopped by the transmission and reception stopping means when the operation key is kept in operation for a predetermined period.