Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8681737 | Method and apparatus for inter-technology handoff between a packet data network and a circuit switched network | Bonnie Chen, Apostolis Salkintzis | 2014-03-25 |
| 7881280 | Method and apparatus to facilitate a non-fully meshed communications system gateway interface | Leonard Pennock, William N. Shores | 2011-02-01 |
| 7742450 | Method for efficient bearer traffic routing in a communication system | George Xenakis, Nandakishore A. Albal, Peter J. Armbruster, Bradley Schaefer | 2010-06-22 |
| 7688764 | Method and apparatus for speaker arbitration in a multi-participant communication session | Jheroen Dorenbosch, Steven D. Upp | 2010-03-30 |
| 7188167 | Method and system for registering multiple communication devices of a user in a session initiation protocol (SIP) based communication system | — | 2007-03-06 |
| 7149515 | Vocoder selection method | Keith Andrew Olds, William N. Shores | 2006-12-12 |
| 7142537 | Interface call signaling protocol | William N. Shores, Barbara DeSutter, Edward J. Neyens, Robert J. Thomas | 2006-11-28 |
| 7054302 | Method and apparatus for interworking dispatch services network | Nandakishore A. Albal, Peter J. Armbruster, Bradley Schaefer, Mark L. Shaughnessy, Steven D. Upp +2 more | 2006-05-30 |
| 6904023 | Method and apparatus for group call services | Nandakishore A. Albal, Peter J. Armbruster, Derek Oxley, William N. Shores, William R. Worger +1 more | 2005-06-07 |