Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661878 | Method and apparatus for establishing a voice call to a PSTN extension for a networked client computer | Mojtaba Mirashrafi, John D. Elliott, Kenneth L. Keeler, Keith A. Pirkl, Al J. Simon +3 more | 2003-12-09 |
| 6628760 | Method and apparatus for selecting an internet/PSTN changeover server for a packet based phone call | Mojtaba Mirashrafi, John D. Elliott, Kenneth L. Keeler, Keith A. Pirkl, Al J. Simon +3 more | 2003-09-30 |