Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8477691 | Routing VoIP calls to an external network | David Sanders | 2013-07-02 |
| 8223776 | Interaction of VoIP calls and cellular networks | David Sanders | 2012-07-17 |
| 6982985 | Interaction of VoIP calls and cellular networks | David Sanders | 2006-01-03 |
| 6411687 | Call routing based on the caller's mood | Dieter Schulz | 2002-06-25 |