Telephonic communications – Special services – Anonymous party
Patent
1994-10-11
1997-01-21
Zele, Krista M.
Telephonic communications
Special services
Anonymous party
379207, 379210, H04M 1100
Patent
active
055966330
ABSTRACT:
The present invention relates to a subscriber presence detector system comprised of a switching system for connecting calls to and from a plurality of lines, a person presence detector connected to a line, for providing an indication to the switching system that a person is adjacent or not adjacent the detector, and apparatus for routing calls to the line in the event an indication has been received by the switching system that a person is adjacent the line.
REFERENCES:
patent: 4852156 (1989-07-01), Shigenaga
patent: 4878238 (1989-10-01), Rash et al.
patent: 4932050 (1990-06-01), Davidson
patent: 5153906 (1992-10-01), Akiyama
patent: 5197092 (1993-03-01), Bamburak
patent: 5363425 (1994-11-01), Mufti
patent: 5379319 (1995-01-01), Satoh
Bligh Peter
Butler Chris
Meier Rolf G.
Rehder Michael C.
Mitel Corporation
Presson Thomas F.
Wands Charles E.
Zele Krista M.
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