Subscriber telephone diverter switch

Telephonic communications – Special services – Anonymous party

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

379120, 379140, 379156, 379106, H04M 342

Patent

active

055639380

ABSTRACT:
An electronic switch (29) for automatically connecting a subscriber telephone instrument (31a, 31b, 31c, or 31d) to either of two telephone signal paths (27 or 28) is disclosed. Outbound calls are selectively routed to one or the other of the two telephone signal paths, based on the nature of the initial digits generated by the subscriber. Local calls are sent to a local exchange carrier (23a) and toll calls are sent to an inter-exchange carrier (25) via a transmission medium that may also carry other signals, such as cable television or utility energy management signals. In the event the normal path is out of service, outbound signals are sent via the other path. Inbound signals from either path are automatically routed to the subscriber. Signal routing is completely transparent to the subscriber.

REFERENCES:
patent: 3922491 (1975-11-01), Bjork et al.
patent: 4441180 (1984-04-01), Schussler
patent: 4565903 (1986-01-01), Riley
patent: 4654866 (1987-03-01), Bottle et al.
patent: 4866763 (1989-09-01), Cooper et al.
patent: 5027426 (1991-06-01), Chiocca, Jr.
patent: 5124980 (1992-06-01), Maki
patent: 5253288 (1993-10-01), Frey et al.
patent: 5278889 (1994-01-01), Papanicolaou et al.
patent: 5311585 (1994-05-01), Armstrong et al.
patent: 5329308 (1994-07-01), Binns et al.
patent: 5341415 (1994-08-01), Baran
patent: 5404350 (1995-04-01), DeVito et al.
patent: 5452351 (1995-09-01), Yamamoto

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Subscriber telephone diverter switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Subscriber telephone diverter switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subscriber telephone diverter switch will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-63217

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.