Private electronic exchange apparatus having a plurality of exte

Details Private electronic exchange apparatus having a plurality of exte Private electronic exchange apparatus having a plurality of exte

1995-06-07

1998-10-20

Hong, Harry S.

Telephonic communications

Special services

Call diversion

379 88, 379212, 379246, 379258, H04M 342, H04M 164, H04M 300

Patent

active

058258663

ABSTRACT:
An electronic exchange apparatus includes a plurality of extension circuits having terminals to which a plurality of extension terminals are connected, a memory table in which a plurality of extension numbers corresponding to the extension circuits are registered, and a control circuit for retrieving an extension number of a destination of an incoming signal from the memory table. The electronic exchange apparatus comprises a change request detector for detecting a change request signal supplied from one of the extension terminals to request a change in contents registered in the memory table, and a memory table changing section for changing the contents registered in the memory table, based on the change request signal detected by the change request detector and information supplied from the extension terminals and representing a content to be changed.

REFERENCES:
patent: 4899373 (1990-02-01), Lee et al.
patent: 4956861 (1990-09-01), Kondo
patent: 4959856 (1990-09-01), Bischoff et al.
patent: 5414759 (1995-05-01), Ishikuri et al.

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