REGISTERED CONTENT CHANGING DEVICE FOR SWITCHBOARD

Japanese Patent JP3217705

B2

PROBLEM TO BE SOLVED: To change the registered contents of a switchboard from the destination of visit by identifying, storing an inputted PB signal and transmitting the stored data to a call termination telephone line, with which the data can be registered at the switchboard, when a calling signal is detected.
SOLUTION: When changing the registered data on the telephone line registered in the switchboard at the destination of visit, a call is originated to a reception telephone set by using a non-specified telephone set at the destination of visit. Then, this call is detected by an incoming call detection part 8, a relay contact 7 is closed, and the non-specified telephone set is connected to a registered content changing device. A prescribed PB signal is sent out to the registered content changing device, by operating the non-specified telephone set. The sent PB signal is analyzed by a signal identification part 9 and stored in a memory 12 for set content change as the data for change. A control part 11 successively sends out the data stored in the memory 12 for set content change from a PB transmitter 5 to a telephone line (b), and the switchboard changes the registered data.

Toru Takamori

JP21804096A

October 15, 2001

July 31, 1996

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Chesscom International Co., Ltd.

H04M3/42; H04M1/00; H04M3/00; H04M11/00; H04Q3/545; (IPC1-7): H04M3/42; H04M1/00; H04M3/00

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Kotaro Shinseki (1 person outside)

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