INTERPHONE SYSTEM WITH TRANSFER FUNCTION AND COMMUNICATION TERMINAL

Japanese Patent JP3385350

B2

PROBLEM TO BE SOLVED: To obtain an interphone system with a transfer function where a master terminal receiving a call signal from a slave terminal automatically dials an external communication terminal registered in advance to connect the communication terminal and the slave terminal so as to make a speech with each other.
SOLUTION: The interphone system is provided with a slave terminal 1 that has a call means 12 and a speech means 11 and with a master terminal 2 that has a speech means 24 and is connected to the slave terminal 1 through a leased line 3. The master terminal 2 is provided with a removable mobile phone 4, an automatic dial means 28 that receives a call signal from the call means 12 to call the communication terminal registered in advance via the mobile phone 4, a transfer setting means 26 that selects the priority of the call by the automatic dial means 28, and a main control means 21 that connects the speech means 11 of the slave terminal 1 and the communication terminal via the mobile phone.

JP3924064	DIAGNOSIS OF COKE OVEN BODY
JP2005286926	IMAGE PICKUP DEVICE
WO/2018/207303	ON-BOARD MONITORING CAMERA DEVICE

Shinji Nakamura
Nobuo Matoba
Yasuo Fujimura
Yoshiaki Minegishi
Toshiaki Sasaki

JP2000037152A

March 10, 2003

February 15, 2000

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Matsushita Electric Industrial Co., Ltd

H04N7/18; H04M1/00; H04M1/26; H04M1/725; H04M9/00; H04M19/08; H04W4/04; H04W4/16; (IPC1-7): H04M9/00; H04M1/00; H04M1/725

JP6268760A
JP10178470A
JP9307884A
JP10178745A
JP5145605A
JP7170339A

Teruo Aoki

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