Issued Patents All Time
Showing 126–133 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7843809 | Preserving stable calls during failover | Robert F. Dailey, Arshad Khan, Jeffrey L. Scruggs | 2010-11-30 |
| 7814193 | Distributing user endpoint registrations among border elements in a next generation network | Robert F. Dailey, Satish Parolkar | 2010-10-12 |
| 7778231 | System and method of communication in an IP multimedia subsystem network | Bernard Ku, Mehrad Yasrebi | 2010-08-17 |
| 7639792 | System and method for location management and emergency support for a voice over internet protocol device | Richard L. Khan, Robert F. Dailey, Keith Joseph Allen, Geoffrey Zampiello | 2009-12-29 |
| 6731738 | Call tones in communication networks | Shannon P. Silvus, Richard Nolan Kennedy, Jr., Michael J. Gettles, William Douskalis | 2004-05-04 |
| 6728362 | Continuity testing with call tone messaging in communication networks | Shannon P. Silvus, Richard Nolan Kennedy, Jr., Michael J. Gettles, William Douskalis | 2004-04-27 |
| 6684251 | Dynamic connection set-up in a communication network | Timothy Gene Kelley, Matthew Barrow, Joseph Moore, Benjamin J. Ewy, Shannon P. Silvus +1 more | 2004-01-27 |
| 6640318 | Continuity testing in communication networks | Shannon P. Silvus, Michael J. Gettles, William Douskalis | 2003-10-28 |