Private branch exchange system

Details Private branch exchange system Private branch exchange system

1991-02-04

1993-03-16

Brown, Thomas W.

Telephonic communications

Special services

Call diversion

379210, 379215, H04M 346, H04M 354

Patent

active

051951312

ABSTRACT:
A private branch exchange system having a call forward busy function wherein, when a busy incoming-call destination terminal receives a further incoming call, the further incoming call is informed to both of the busy incoming-call destination terminal and a forwarding destination terminal previously set for the busy incoming-call destination terminal. Since a response opportunity to the further incoming call is provided even when the initially-intended incoming-call destination terminal is busy, the response opportunity of the busy incoming-call destination terminal and the forwarding destination terminal to the incoming call can be increased and therefore an incoming-call response rate of the entire system based on the call forward busy function can be increased.

REFERENCES:
patent: 4723273 (1988-02-01), Diesel et al.
patent: 5023868 (1991-06-01), Davidson et al.

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