Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807185 | System and method for signalling and call processing for private and hybrid communications systems including multimedia systems | Robert T. Bell | 2004-10-19 |
| 6587460 | Bridging and signalling subsystems and methods for private and hybrid communications systems including multimedia systems | Robert T. Bell | 2003-07-01 |
| 6044081 | Bridging and signalling subsystems and methods for private and hybrid communications systems including multimedia systems | Robert T. Bell | 2000-03-28 |