PURPOSE: To provide a telephone set in which a phone call is made to a called party with a simple operation without use of a memo or the like when a call is received by a reception exclusive use mobile set and information on a tele phone number and a message is sent externally through the use of a line.

CONSTITUTION: Received information is stored in a memory 6 in a pager 20, and when the mount state on a telephone set 30 is detected, stored message information is transferred to the telephone set 30. On the other hand, the message information transferred from the pager 20 is stored in a memory 10 of the telephone set 30 and the stored message information is displayed on a display section 12 and when a one-operation button 17 is depressed, automatic dialing is made to call the called party.