Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263206 | Method providing coordination of multiple call switching centers for a wireless service | Gregg R. Siegfried | 2001-07-17 |
| 5974114 | Method and apparatus for fault tolerant call processing | Andrea G. Blum | 1999-10-26 |