Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6717918 | ISDN callback with initial call reject | Lewis T. Donzis, Howard Bahr | 2004-04-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6717918 | ISDN callback with initial call reject | Lewis T. Donzis, Howard Bahr | 2004-04-06 |