Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8842689 | Cross cluster extension mobility in internet-protocol telephony | Atul Trasi, Daniel Keller, Susan M. Sauter, Ho Bao | 2014-09-23 |
| 8428244 | Cross-call agent extension mobility with call admission control and emergency calling | Edward Chen, Christopher E. Pearce | 2013-04-23 |
| 7839879 | Method and system for supporting cross cluster extension mobility in internet-protocol telephony | Atul Trasi, Daniel Keller, Susan M. Sauter, Ho Bao | 2010-11-23 |