Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10356668 | Handling a terminating circuit switched signaling service to a terminal in a mobile network | Sven Gemski, Ralf Keller | 2019-07-16 |
| 10231278 | Technique for terminating call set up in a CSFB situation | Ralf Keller | 2019-03-12 |