Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6529583 | PSTN call simulator and method of operation for testing PSTN-To-IP network telephone services for individual and group internet clients prior to availability of the services | Peeyush Jaiswal, Willie J. Johnson, Sibyl Sullivan | 2003-03-04 |
| 6519228 | System and method of operation for verifying and validating public switch telephone networks (PSTN) to (IP) network services | Peeyush Jaiswal | 2003-02-11 |