The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2002
Filed:
May. 18, 1998
James A. Campbell, Plano, TX (US);
InterVoice Limited Partnership, Reno, NV (US);
Abstract
A system and method having a number of call processors and servers which provide prepaid or debit card calling service to local areas is disclosed. The servers are linked via a wide area network (WAN) or some other communications network. The system maintains a single account record for each debit card customer. Each account record contains information such as an account balance and a rate billing plan for the customer. When a customer makes a prepaid call, a local call processor and server handle the call. The local server obtains the customer's record from another server via the WAN if the record is not already present in a local database. WAN traffic is reduced because most debit card users routinely call from the same local area and, as a result, most of calls from a particular customer are processed by the same local call processor and server.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile