christopher s hall
Electrician at Canadian Pkwy, Fort Collins, CO
License number
Colorado 9935850
Issued Date
Aug 19, 2014
Renew Date
Aug 18, 2014
Type
Electrical Apprentice
Address
Address
3605 Canadian Pkwy, Fort Collins, CO 80524
Professional information
Voice Security Between A Composite Channel Telephone Communications Link And A Telephone
US Patent:
6256491, Jul 3, 2001
Filed:
Dec 31, 1997
Appl. No.:
9/001953
Inventors:
Douglas E. Ehlers - Lincoln NE
Christopher Aaron Hall - Fort Collins CO
James R. Holthaus - Omaha NE
Christopher Aaron Hall - Fort Collins CO
James R. Holthaus - Omaha NE
Assignee:
Transcript International, Inc. - Lincoln NE
International Classification:
H04B 102
US Classification:
455410
Abstract:
An apparatus and method for security of individual communications over a composite communications channel such as T1 or E1.
The composite channel is digitized. Individual channels are separated, but identifying information of each channel is retained. A level of security can be chosen for each channel by digitally processing the selected call with a selected level of scrambling or encryption prior to passing the call to an end-user.