Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788674 | Method and apparatus for establishing a collect call originated through a packet based network | Murali M. Karamchedu | 2004-09-07 |
| 6778652 | Method and apparatus for establishing and facilitating a voice call connection from a client computer to a PSTN extension | Jeffrey W. Gaus, Murali Karamechdu, John R. Kadinger | 2004-08-17 |
| 6771640 | Virtual calling card with arbitrary controls | Murali M. Karamchedu | 2004-08-03 |