the display of 34 line capturing 34 in step s405 have been also shown as an example in the flowchart of fig4 and contents other than them can be also displayed the example in which the volume of the touch tone is changed by depressing the volume button 23 in the on hook state in step s409 has been shown it is not always necessary to change the volume of the touch tone and a volume other than the touch tone can be also changed in the description of the operation when adjusting the reception volume by the predetermined specific operation in the flowchart in fig6 the volume has been changed by the volume button 23 after the volume adjustment mode was set however by using a method whereby when the adjustment mode is set the volume at that time is displayed and the apparatus exits the adjustment mode without depressing the volume button 23 the volume at that time can be known instead of changing the volume although the example of changing the volume of the touch tone has been shown in step s605 it is not always necessary to change the volume of the touch tone but a volume other than the touch tone can be also changed the time display in step s709 and the display of 34 line capturing 34 in step s710.