Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6603761 | Using internet and internet protocols to bypass PSTN, GSM map, and ANSI-41 networks for wireless telephone call delivery | Jin Wang | 2003-08-05 |
| 6526033 | Delivering calls to GSM subscribers roaming to CDMA networks via IP tunnels | Jin Wang | 2003-02-25 |
| 6526390 | Independent billing settlement for call origination by wireless subscribers roaming to foreign wireless networks | Jin Wang | 2003-02-25 |