Hostage negotiation telephone system

Details Hostage negotiation telephone system Hostage negotiation telephone system

1984-03-13

1986-05-20

George, Keith E.

179 29, 179 40, H04M 900

Patent

active

045903310

ABSTRACT:
A portable self-contained telephone system for use in hostage negotiation and barricade situations is disclosed. The system is powered by a battery pack or AC power source and provides telephone isolation of the perpetrator. The system can be connected into the telephone network and third parties can be dialed and connected to the perpetrator by the negotiator. The dial pad will redial the last number called at the push of a button. Conference calls between the negotiator, third-party and the perpetrator can be connected. The perpetrator's telephone can be rung automatically. The status of the perpetrator's telephone is displayed by the off hook indicator at all times.

REFERENCES:
patent: 4064366 (1977-12-01), Wheatley et al.
patent: 4113985 (1978-09-01), Day
patent: 4145577 (1979-03-01), Kojima et al.
patent: 4362908 (1982-12-01), Melindo
patent: 4523056 (1985-06-01), Fisher
Sales Sheet, Hostagephone, Western Electric, 1 page.
Sales Sheet, QT-1 Quick Temporary Telephone, Critical Communications Systems Inc., 1 page.
Brochure, Crisisphone, Lynch Communications Systems Inc., 37 pages, letter dated 5/8/81, Ordering Info. Sheet dated 1/81, Operators Manual, .COPYRGT.1980.

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