Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667958 | Routing calls to external networks from a private network | Nhut Quan Tran | 2003-12-23 |
| 6643366 | Control of access to the call completion on busy link service in a private telecommunication network | Daphné Bienvenu | 2003-11-04 |
| 6600722 | Routing calls in a telecommunications network on the basis of passband | Nhut Quan Tran | 2003-07-29 |