Title:
ORDER LINE TERMINATING DEVICE
Document Type and Number:
Japanese Patent JP2710569
Kind Code:
B2
Abstract:
PURPOSE: To miniaturize a device and to simultaneously improve convenience and versatility in terms of use by handling plural order lines with one telephone set panel and easily extending the lines to the side of a small-sized radio telephone set simultaneously.
CONSTITUTION: This device is constituted of interface circuits 11-13 for arranging the levels of the respective order lines or the like, a coupling circuit 14 for coupling the respective lines to one line, the branching circuit 15 of a three- junction system, a radio interface circuit 16 for arranging the level or the like with a radio order line side and the telephone set panel 18 for performing communication, etc. Then, communication between two parties by speaker calling with the side of the respective order lines from the telephone set panel 18 or the communication among three parties by extending the line to the radio order line side, etc., is performed.
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Inventors:
Tsutomu Kikuchi
Masaharu Otaki
Masaharu Otaki
Application Number:
JP29360594A
Publication Date:
February 10, 1998
Filing Date:
November 29, 1994
Export Citation:
Assignee:
NEC Telenetworks Co., Ltd.
International Classes:
H04M9/00; H04B3/03; H04B3/56; H04B7/26; H04M3/00; (IPC1-7): H04M3/00; H04B3/03; H04B3/56; H04B7/26
Domestic Patent References:
| JP5153238A |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)