| 摘要 |
PURPOSE:To select two connection type and connectionless type data communicating means between arbitrary processors by using a control message communication channel between respective processors in a private automatic branch exchange constituted of plural processors. CONSTITUTION:A system constitution control part 104 to give a unique number to plural processors 103, 111, 121, 132, 142 and 152 to constitute a private automatic branch exchange is equipped at a main device 100, a layer 3 communicating part to perform the data communication between a layer 2 communicating part to perform the data communication between adjoining processors without any errors and a processor not adjoining with the layer 2 communicating part is equipped at a processor, and thus, a connection type communication with a call number given by a connection setting means as the destination identifier of data and a connectionless type communication to add the unique destination number to data can be selected. |
