| 摘要 |
A network linkage type private branch exchange system including a plurality of private branch exchanges, a plurality of telephone network interfaces for relaying data between a plurality of telephone networks and each private branch exchange, a plurality of terminal devices such as an extension for transmitting the data between the respective private branch exchanges and a plurality of operators, a plurality of computers each connected to each private branch exchange for conducting predetermined processing based on the data, and a data communication line to which each private branch exchange is connected, in which each private branch exchange transmits data to a computer connected to an arbitrary private branch exchange other than the private branch exchange in question through the data communication line. |
