Arrangement for frustrating fraudulent telephone calls

Details Arrangement for frustrating fraudulent telephone calls Arrangement for frustrating fraudulent telephone calls

1979-06-29

1981-08-18

Brown, Thomas W.

179 84VF, H04M 166

Patent

active

042848512

ABSTRACT:
A method and arrangement for frustrating attempted fraudulent calls from a station using a "blue box" device to avoid toll charges. Upon detecting a possible fraudulent call, the sequence of digits from the blue box is altered to divert the call from its intended destination. Specifically, "KEY PULSE" and "START PULSE" tones are generated and commingled with the digits from the blue box to route the call to reorder.

REFERENCES:
patent: 3569634 (1971-03-01), Amadasi et al.
patent: 3588374 (1971-06-01), Van Hensbergen
patent: 3952160 (1976-04-01), Pasternack et al.
patent: 4001513 (1977-01-01), Naylor
patent: 4002848 (1977-01-01), Stein
patent: 4018996 (1977-04-01), Kahn
patent: 4056698 (1977-11-01), Dworak et al.
patent: 4147902 (1979-04-01), Dworak

Affiliated with

Also associated with

Rating

Arrangement for frustrating fraudulent telephone calls does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arrangement for frustrating fraudulent telephone calls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for frustrating fraudulent telephone calls will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-39141