Method of Snatching Call in Private Branch Exchange

摘要

PURPOSE: A call interception method in a private switching system is provided to allow a manager to check and intercept a call of the other party with which a management target is communicating. CONSTITUTION: When the first extension subscriber is in call communication with the second extension subscriber, a manager dials a predetermined interception function code and then dials an extension number of the first extension subscriber. The first extension subscriber is terminated in its call connection and listens to a congestion tone, and the manager and the second extension subscriber are connected for call communication. When the first extension subscriber occupies the second trunk line for call communication with an external subscriber, the manage dials a predetermined extension interception function code, and then, dials an extension number of the first extension subscriber. Then, the first extension subscriber is terminated in its call connection and listens to a congestion tone, and the manager occupies the trunk line to be connected to the external subscriber connected to the second trunk line.