Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6801526 | Server for supporting the establishment of telephone calls through an IP network | Uwe Stahl, Wolfgang Lautenschlager, Lothar Krank | 2004-10-05 |
| 6744871 | Method for routing service calls in a telecommunication network, as well as a telecommunication network, switching center and program module therefor | Wolfgang Lautenschlager, Heike Felbecker-Janho | 2004-06-01 |