Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8077840 | Web integrated interactive voice response | Xiaofeng Gao, Sam Zellner | 2011-12-13 |
| 7978841 | System and method for gathering information related to a geographical location of a caller in a public switched telephone network | Xiaofeng Gao | 2011-07-12 |
| 7912208 | Systems, methods, and devices for an enhanced on-hold interface | Xiaofeng Gao | 2011-03-22 |
| 7894591 | On demand call re-termination | Robert Bezner | 2011-02-22 |