Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6940962 | Dial on-hold | Harold E. A. Hansen, II | 2005-09-06 |
| 6925167 | Service observing in a voice over IP telephone system | Harold E. A. Hansen, II | 2005-08-02 |
| 6842505 | Communications system enhanced with human presence sensing capabilities | Harold E. A. Hansen, II | 2005-01-11 |