| 摘要 |
PURPOSE:To speak with an absent person without adding a specific work to a private branch system by calling the receiver of the absent person from a telephone set receiving a line wire call to the absent person through radio communication and connecting the absent person with the line based on a line request from the absent person. CONSTITUTION:A call from a line wire telephone set A in a private branch calling system is received by a PBXE and connected to an extension slave telephone set C1 through an extension master telephone set B1. When an absent person from the slave set C1 is called up by the calling, the master set B1 is called and the call number of the absent person is originated from the called and the call number of the absent person is originated from the master machine B1. At that time, the call number of the absent person is originated simultaneously from a master set B2 on the other floor. The call umber is received by the receiver D1 of the absent person and its buzzer is generated. The absent person listening the buzzing transmits a connection request from the nearest slave set C2 to the master set B2 and the request is informed to the originating master set B1 through the PBXE. Thus, the communication between the telephone set B and the absent person can be attained without adding a specific work to the private branch system. |
