Secure dial access to computer systems
US5003595A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Aug 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99939
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This invention relates to a method and apparatus for making it difficult for unauthorized callers to access a target computer such as a data base for providing data to and accepting orders from agents. The caller is identified by an arrangement that is relatively secure from tampering. The caller's telephone number is identified by Automatic Number Identification (ANI) and forwarded to an adjunct processor associated with the target computer. The ANI number is compared with a stored list of authorized ANI numbers and if there is a match, the caller is connected to the target computer. The arrangement also provides other facilities including automatic rejection of calls from a second list of ANI numbers, trapping of calls from a third list of ANI numbers and facilities for permitting authorized agents calling from unauthorized numbers to access the target computer. Advantageously, an arrangement, ANI, which is highly resistant to tampering is used for identifying the caller, thus making it very difficult for unauthorized callers to get access to the target computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.