Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9781257 | Technique for obtaining caller-originated alert signals in IP-based communication sessions | Charles Liu | 2017-10-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9781257 | Technique for obtaining caller-originated alert signals in IP-based communication sessions | Charles Liu | 2017-10-03 |