Title:
INTERPHONE DEVICE WITH TRANSFER FUNCTION, INTERPHONE SYSTEM WITH THE TRANSFER FUNCTION, AND MANAGEMENT TERMINAL OF THE INTERPHONE SYSTEM WITH THE TRANSFER FUNCTION
Document Type and Number:
Japanese Patent JP3398746
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an interphone device with transfer function, such that the master machine terminal which receives a call signal from the slave machine terminal, calls an external communication terminal preregistered under a prescribed condition and connects the terminal to a slave machine terminal, so as to make speech possible between the terminals.
SOLUTION: An interphone deice is provided with a slave machine terminal 1, having a calling means 12 and a speaking means 11 and a master machine terminal 2 which has a telephone call means 24 and a calling function and is connected to the terminal 1 via a private line 3 and also to an external communication terminal through a common line 4. The terminal 2 is provided with an automatic calling means 28, which calls a preregistered communication terminal upon receiving a call signal from the calling means 12, a transfer setting means 26 which sets whether a transfer is necessary or not by means of the calling means 28, and a main control means 21 which calls the communication terminal and connects the terminal to the telephone call means 11 of the slave machine terminal 1 by controlling the automatic calling means 28 upon receiving a call from the terminal 1, when the transfer setting means 26 sets the transfer. The terminal 2 is also provided with a line type registering means which registers the type of the connected communication line 4.
Inventors:
Kazuhiro Yoshida
Nobuto Seki
Nobuto Seki
Application Number:
JP2000084259A
Publication Date:
April 21, 2003
Filing Date:
March 24, 2000
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04M1/00; H04M1/2745; H04M9/00; (IPC1-7): H04M9/00; H04M1/00; H04M1/2745
Domestic Patent References:
| JP417446A |
Attorney, Agent or Firm:
Teruo Aoki