TWO-WAY WRITABLE MEDIA BOARD SYSTEM FOR TELEPHONE CONFERENCE

摘要

PROBLEM TO BE SOLVED: To provide a two-way writable media board system which can effectively be applied as telephone conference equipment and also two-way- communicate write information on media boards in addition to speech information of telephone sets. SOLUTION: This media board system comprises a media board 101 to which a write pen 105 for entering write information is attached is connected to the telephone line of a telephone set 103 at a point PA and a media board 102 to which a write pen 105 for entering write information is attached is connected to the telephone line TX of a telephone set 104 at a point PB. Speech information by the telephone sets 103 and 104 and write information by the media boards 101 and 102 which are provided for the sets 103 and 104 respectively can simultaneously communicate with the other party through the line TX.