Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9055083 | Interworking method and interworking control unit, method and system for implementing simulation services | Qing Zhou, Lingzhi Mao | 2015-06-09 |
| 9020118 | Method and system for intelligent routing | — | 2015-04-28 |
| 8625765 | Method and system for intelligent routing | — | 2014-01-07 |
| 8374326 | Method and system for intelligent routing | — | 2013-02-12 |
| 8369315 | Call connection method, equipment, and system in IP multimedia subsystem | Qing Zhou | 2013-02-05 |
| 8335221 | Method for listening to signal tone from a called party by a calling party during network interworking | — | 2012-12-18 |
| 8184002 | Method and device for receiving emergency event alert | Dewen Zhang, Ni Zhang, Lingzhi Mao, Zhongbao Zhang, Baojian Qi | 2012-05-22 |
| 8160224 | Method, apparatus and system for implementing conference service | — | 2012-04-17 |
| 7986775 | Method for realizing ring back tone in communication system | — | 2011-07-26 |
| 7948955 | Subscription method and device | — | 2011-05-24 |
| 7924821 | Method and communication system for implementing calling tapping at flash | — | 2011-04-12 |
| 7804820 | System and method for processing packet domain signal | Dongming Zhu | 2010-09-28 |