Office line selecting technique of a telephone switching system

Details Office line selecting technique of a telephone switching system Office line selecting technique of a telephone switching system

1997-01-17

1999-02-16

Kuntz, Curtis A.

Telephonic communications

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

379157, 379177, H04M 100

Patent

active

058728392

ABSTRACT:
An office line selecting technique of a telephone switching system includes: receiving an extension number so as to select an office line which is in an optimal state with respect to a specific extension; confirming whether the extension number can use an office line which is in an optimal state when an office line group number consisting of a plurality of office lines is selected through an extension; and connecting the specific extension to the office line which is in an optimal state.

REFERENCES:
patent: 3660611 (1972-05-01), Knollman et al.
patent: 4594477 (1986-06-01), Noirot
patent: 4958369 (1990-09-01), Tsuchida
patent: 5134652 (1992-07-01), Brown et al.
patent: 5208803 (1993-05-01), Conforti et al.
patent: 5434852 (1995-07-01), La Porta et al.

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