Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10462294 | Method and apparatus for processing a communication request from a roaming voice over IP terminal | William R. J. Chorley, Chaoxin Qiu | 2019-10-29 |
| 10230641 | Method and apparatus for controlling call volume | Chaoxin Qiu, Robert F. Dailey, Satish Parolkar, Jeffrey L. Scruggs | 2019-03-12 |