Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8107361 | Simultaneous active registration in a SIP survivable network configuration | Al Baker, Mehmet C. Balasaygun, Frank J. Boyle, Gordon R. Brunson, Benjamin Jenkins +1 more | 2012-01-31 |
| 8018848 | Survivable phone behavior using SIP signaling in a SIP network configuration | Al Baker, Mehmet C. Balasaygun, Frank J. Boyle, Gordon R. Brunson, Benjamin Jenkins +1 more | 2011-09-13 |
| 7995466 | Failover/failback trigger using SIP messages in a SIP survivable configuration | Al Baker, Mehmet C. Balasaygun, Frank J. Boyle, Gordon R. Brunson, Benjamin Jenkins | 2011-08-09 |
| 5313463 | ISDN credit checking | Angela R. Gore, Barbara Joanne Kittredge, Julie M. Ladieu-Walton | 1994-05-17 |
| 5187710 | Method and apparatus for the billing of value-added communications calls | Nga V. Chau, Reuben D. Hauptman, David D. Kaufman, Barbara Joanne Kittredge, Patricia Lindblad | 1993-02-16 |
| 4932042 | Spontaneous voice and data messaging | Elliott Baral, Percy B. Brown, Reuben D. Hauptman, Richard J. Jaeger, Jr., Frank C. LaPorta +4 more | 1990-06-05 |