Telephone switching system for easily implementing modification

Details Telephone switching system for easily implementing modification Telephone switching system for easily implementing modification

1998-02-06

2000-09-05

Zele, Krista

Telephonic communications

Multi-line or key substation system with selective switching...

379165, 379166, 379245, 379377, 379383, H04M 100

Patent

active

061154598

ABSTRACT:
A telephone switching system 10 comprises a plurality of physical ports 20, and switches removable terminals based on predetermined connection information, wherein such connection information is arranged to be capable of being stored and rewritten in a RAM 60 by inputting from the terminal. When a physical port connecting to a terminal interface 30 is reconnected from a first terminal to a second terminal, a CPU 40 rewrites the connection information stored in the RAM 60 so that an extension number the user desires is stored for the physical port reconnected with the terminal.

REFERENCES:
patent: 4088844 (1978-05-01), Kinnaird, Jr.
patent: 4327256 (1982-04-01), Crooks et al.
patent: 4928306 (1990-05-01), Biswas et al.
patent: 4953200 (1990-08-01), Yamasaki
patent: 5151934 (1992-09-01), Hayashi
patent: 5365581 (1994-11-01), Baker et al.
patent: 5400397 (1995-03-01), Ryu

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