Issued Patents 2003
Showing 1–1 of 1 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 | Thomas E. Creamer, Peeyush Jaiswal, Willie J. Johnson | 2003-03-04 |