Apparatus and method of making a secure call

Details Apparatus and method of making a secure call Apparatus and method of making a secure call

2001-12-10

2009-10-13

D'Agosta, Stephen M (Department: 2617)

Telecommunications

Radiotelephone system

Security or fraud prevention

C455S410000, C455S414100, C455S558000, C379S145000, C379S189000

Reexamination Certificate

active

07603104

ABSTRACT:
A system of operating a wireless handset capable of making clear and secure calls is claimed. A secure call may be made by pressing a key for a predetermined amount of time. The handset enters a secure mode if the key is held for a time period greater than the predetermined amount of time. The handset enters a clear mode if the key is held for a time period less than the predetermined amount of time.

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