Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5631948 | Voice mail communication with call blocking | Robert D. Farris | 1997-05-20 |
| 5592477 | Video and TELCO network control functionality | Robert D. Farris | 1997-01-07 |
| 5586177 | Intelligent signal transfer point (ISTP) | Robert D. Farris | 1996-12-17 |
| 5497414 | Telephone system processing of designated caller ID private calls | — | 1996-03-05 |