Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7533263 | System and method for registering a subscriber station on the packet service call state control function CSCF in a communications system | Steffen Engmann, Uwe Foell, Ralf Jasper | 2009-05-12 |