Automatic validation of telephone account numbers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4890317
SERIAL NO

07301347

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A telephone system and method of operation are disclosed which use a microprocessor control system (10), a speech generator (34) and speech memory (46) to interact with a calling party placing a long distance phone call. The telephone receives a billing account number from the calling party thorugh a keypad (24). The telephone determines the validity of the billing account number by attempting to place a telephone call using the billing account number to a controlled telephone number. If the attempt is successful the billing account number is valid and a communication path is established through a telephone line interface (38). The microprocessor controlled system (10) generates a billing record for the call which is stored in a call record memory (11). The billing record can later be retrieved to facilitate billing the call.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SECURUS TECHNOLOGIES INC14651 DALLAS PARKWAY SUITE 600 DALLAS TX 75254-7476
T-NETIX INC14651 DALLAS PARKWAY SUITE 600 DALLAS TX 75254
EVERCOM SYSTEMS INC14651 DALLAS PARKWAY SUITE 600 DALLAS TX 75254

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hird, John A Dallas, TX 20 698
Owen, Lindsey D Carrollton, TX 15 621
Rice, Michael R Carrollton, TX 176 3831

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation