Resources Contact Us Home
Method and system for allowing simultaneous usage of prepaid services

Image Number 5 for United States Patent #7627529.

A method and system allows multiple and simultaneous use of a pre-paid calling card. A call management system allows for the completion of multiple calls under one pre-paid calling card account number. Depending on the number of concurrent users, a billing system assigns a portion of the total number of available service units to individualized user accounts. The individualized accounts are debited according to the rate charges for each of the calls and are initially assigned an account balance that allows all concurrent users with the same amount of talk time.

  Recently Added Patents
Digital display
Adaptive analog echo/next cancellation
Semiconductor arrangement with a solder resist layer
Liquid crystal display device
Method for indicating the process of leaving a parking space
Cantilevered probe detector with piezoelectric element
Integrated emergency medical database system
  Randomly Featured Patents
Heated spray spinning nozzle and attenuation system
Method and an apparatus for adjusting voltage from a source
Method of forming silicon nitride film and product
Electroscopic fluid picture-display device suitable for displaying television images
Animal training device
Systems and methods for real-time PCR
Dual clutch arrangement with two piece main rotating manifold
Shower head
Auto sensing home base station for mobile telephone with remote answering capabilities
Retractable frame of projection screen