Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788674 | Method and apparatus for establishing a collect call originated through a packet based network | Jeffrey B. Sponaugle | 2004-09-07 |
| 6771640 | Virtual calling card with arbitrary controls | Jeffrey B. Sponaugle | 2004-08-03 |