| |
 |
|
Class Information
Number: 379/144.03
Name: Telephonic communications > With check operated control (e.g., paystation) > Other than coin > Fraud detection in payphone
Description: Subject matter to use a special circuitry embedded in the paystation to monitor and determine fraudulent usage.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7406159 |
Methods, systems, and computer program products for automatically populating signaling-based access control database |
Jul. 29, 2008 |
| 6763098 |
Call blocking based on call properties |
Jul. 13, 2004 |
| 6700963 |
System and method therefor of preventing fraud on pay phone credit/debit calling card authorization |
Mar. 2, 2004 |
| 6697472 |
System and method therefor of preventing fraud on pay phone credit/debit calling card authorization |
Feb. 24, 2004 |
| 6553108 |
Method of billing a communication session conducted over a computer network |
Apr. 22, 2003 |
| 6404871 |
Termination number screening |
Jun. 11, 2002 |
| 5153907 |
Telephone system gateway interface |
Oct. 6, 1992 |
| 5131027 |
Short time validity storage |
Jul. 14, 1992 |
| 5113433 |
Method and apparatus for altering the access format of telephone calls |
May. 12, 1992 |
| 5093858 |
Method and apparatus for performing an automated collect call |
Mar. 3, 1992 |
| 4933966 |
Method and apparatus for performing an automated collect call |
Jun. 12, 1990 |
| 4933965 |
Short time validity storage of a billing account number at a local telecommunications station |
Jun. 12, 1990 |
| 4908852 |
Method and apparatus for altering the access format of telephone calls |
Mar. 13, 1990 |
| 4794642 |
Call screening in a public telephone station |
Dec. 27, 1988 |
| 4698840 |
Coin operated telephone |
Oct. 6, 1987 |
|
|
|
