Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7433954 | Providing telephony services in a communications network | Michel Kallas, Jinchi Chu | 2008-10-07 |
| 6870817 | Method and apparatus for monitoring calls over a session initiation protocol network | Mike Lyell | 2005-03-22 |