Toll fraud control override

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Monitoring

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

379189, H04N 166

Patent

active

047486538

ABSTRACT:
Apparatus and method are disclosed for overriding a fraud control feature utilized by a switching system to disable communications over a unidirectional path serving a call until answer supervision is returned for the call. The switching system includes a fraud control unit which inserts idle code into the unidirectional transmit path serving the call and disables communications on the path from a calling to a called line. However, normal call progress signals are allowed to pass on the receive path from the called to the calling line. The fraud control unit includes an idle code generator for generating the idle code and a selector for inserting either the idle code from the generator or the communications on the transmit path from the caller. The selector is controlled by a control unit under the control of the central processor of the switching system. When an override signal is received on an operator trunk, the central processor causes the fraud control unit to remove the disabling of communications on the transmit path so that normal communication may proceed from the calling to the called line. An operator position under the control of an operator also initiates billing and trouble records for the call when an absence of answer supervision is indicated and information is received that the call has been actually answered.

REFERENCES:
patent: 3952160 (1976-04-01), Pasternack et al.
patent: 4182934 (1980-01-01), Keys et al.
patent: 4284851 (1981-08-01), Schweitzer et al.
C. Breen et al., "Signaling Systems for Control of Telephone Switching", The Bell System Technical Journal, vol. 39, No. 6, Nov., 1960, pp. 1381-1443.

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

Toll fraud control override does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Toll fraud control override, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toll fraud control override will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1879328

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