Method for selectively changing the call handling capacity of a

Details Method for selectively changing the call handling capacity of a Method for selectively changing the call handling capacity of a

1997-03-24

1998-09-01

Zele, Krista

Telephonic communications

Centralized switching system

379196, 370362, H04M 300, H04M 500

Patent

active

058021620

ABSTRACT:
A method for changing the call handling capacity of a telecommunications switch requires authorization from an external source, such as a telecommunications equipment manufacturing company (TEMC). Each switch purchased from the particular switch manufacturer includes a customized upgrade security protocol which limits access to data bus blocks associated with integrated digital carrier units of the switch. To alter the upgrade security program, an authorization code must be retrieved from the TEMC. The authorization code is then entered into the switch, and used to automatically alter the upgrade security protocol so that previously blocked data buses may be activated.

REFERENCES:
patent: 5109408 (1992-04-01), Greenspan et al.
patent: 5426694 (1995-06-01), Hebert
patent: 5436957 (1995-07-01), McConnell
patent: 5467388 (1995-11-01), Redd, Jr. et al.
patent: 5546453 (1996-08-01), Hebert
patent: 5548640 (1996-08-01), Blondel et al.

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