| 10079900 |
Techniques to manage presence information |
Thomas Bouchard, Eran Shtiegman |
2018-09-18 |
| 9723458 |
Push-to-talk telecommunications system utilizing an voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2017-08-01 |
| 9014742 |
Push-to-talk telecommunications system utilizing an voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2015-04-21 |
| 8694041 |
Push-to-talk telecommunications system utilizing an voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2014-04-08 |
| 8447341 |
Push-to-talk telecommunications system utilizing a voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2013-05-21 |
| 8428237 |
Push-to-talk wireless telecommunications system utilizing a voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2013-04-23 |
| 8423045 |
Location-based presence automation |
— |
2013-04-16 |
| 8351913 |
Merging call notifications in cross ringing systems |
Rajesh Ramanathan, Pradipta Kumar Basu, Amritansh Raghav, Nikhil Bobde |
2013-01-08 |
| 8250147 |
Remote call control and conferencing using paired devices |
Rajesh Ramanathan, Adrian Potra, Vinit Deshpande, Ankit Tandon, Stephen H. Houchen +3 more |
2012-08-21 |
| 8238922 |
Location-based address normalization |
— |
2012-08-07 |
| 8213408 |
Providing security in a multimedia network |
Michael Flynn Thomas, Robert E. Denman |
2012-07-03 |
| 8054761 |
Providing security between network elements in a network |
Michael Flynn Thomas, Robert E. Denman |
2011-11-08 |
| 7826603 |
Push-to-talk wireless telecommunications system utilizing a voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2010-11-02 |
| 7801953 |
Push-to-talk wireless telecommunications system utilizing an voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2010-09-21 |
| 7170863 |
Push-to-talk wireless telecommunications system utilizing a voice-over-IP network |
Robert E. Denman, Barbara Derryberry |
2007-01-30 |
