Message waiting system

Details Message waiting system Message waiting system

1979-07-23

1981-07-21

Popek, Joseph A.

H04M 342

Patent

active

042800218

ABSTRACT:
A message waiting feature added to a PABX using the attendant's console and busy lamp field. The message waiting indication is provided by causing the busy lamp associated with the subscriber station that has the message waiting to blink.

REFERENCES:
patent: 3050592 (1962-08-01), Burgener
patent: 3826876 (1974-07-01), Gueldenpfenning et al.
patent: 3934098 (1976-01-01), Merritt, Jr.

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