| 摘要 |
PURPOSE:To achieve communication for all the conference member with one dial operation through the conference call, by dialing a conference invitation specific number, controlling the data exchanger of an exchange station and multiple-connection of telepone lines relating to the conference member to a conference trunk. CONSTITUTION:In an exchange station A, a telephone set 1a relating to the conference manager dials the conference invitation specific number, it is received and processed with a telephone exchanger 2a, and transmitted to a data exchanger 3a. The exchanger 3a transfers required information such as telephone numbers relating inviters desired and conference communication information to exchange stations B, C. Data exchangers 3b, 3c control and connect the desired telephone sets 1b, 1c to selectors 5b, 5c and the confirmed response is returned to the exchanger 3a. The exchanger 3a switches selectors 5a-1 and 5a-2 of the station itself to the communication side. Thus, the telephone lines relating telephone sets 1a, 1b, 1c are all connected to a conference trunk 8 for three party communication. |
