Private branch exchange, information update method for private branch exchange, and program

摘要

PROBLEM TO BE SOLVED: To provide a private branch exchange capable of updating a telephone number of a call partner without any effort. A private branch exchange 1 includes a control unit 1a, a connection unit 1b, a storage unit 1c, and a communication unit 1d that communicates with an information processing device via a network. The storage unit 1c includes contact information indicating a telephone number of the other party, contact information indicating the contact used in the communication service for communicating information about the other party that can be viewed by the information processing device, and the storage unit 1c. To associate and memorize. The control unit 1a transmits, via the communication unit 1d, the first notification prompting the contact indicated by the contact information to transmit the update information (first update information) of the call destination information associated with the contact information. .. When the control unit 1a receives a reply to the first notification (second notification) via the communication unit 1d and the second notification includes the first update information, the control unit 1a is based on the first update information. , Update the call destination information stored in the storage unit 1c. [Selection diagram] Fig. 1