Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8948752 | System and method of providing IMS services to users on originating non IMS devices and other devices that do not have a previous relationship with the user | Steven A. Siegel, Siroos K. Afshar, Walter Cooper Chastain, Karen M. McCourt, Arnold Chester McQuaide, Jr. +1 more | 2015-02-03 |
| 8767717 | System and method of providing IMS services to users on terminating non IMS devices | Steven A. Siegel, Siroos K. Afshar, Walter Cooper Chastain, Karen M. McCourt, Arnold Chester McQuaide, Jr. +2 more | 2014-07-01 |
| 8547968 | Methods, apparatus and computer program products for associating local telephone numbers with emergency phone calls in a packet switched telephone systems | — | 2013-10-01 |
| 8472431 | System and method of providing IMS services to users on terminating non IMS devices | Steven A. Siegel, Siroos K. Afshar, Walter Cooper Chastain, Karen M. McCourt, Arnold Chester McQuaide, Jr. +2 more | 2013-06-25 |
| 8451102 | Methods, devices, and computer program products for providing ambient noise sensitive alerting | — | 2013-05-28 |
| 8410914 | Methods, devices, and computer program products for providing ambient noise sensitive alerting | — | 2013-04-02 |
| 8223750 | Methods, apparatus and computer program products for associating local telephone numbers with emergency phone calls in a packet switched telephone system | — | 2012-07-17 |
| 7586902 | Methods, apparatus and computer program products for associating local telephone numbers with emergency phone calls in a packet switched telephone system | — | 2009-09-08 |
| 7567165 | Methods, devices, and computer program products for providing ambient noise sensitive alerting | — | 2009-07-28 |
| 7443855 | Communication system and method using partially non-geographic addressing method for forming same | — | 2008-10-28 |
| 6876658 | Communications system and method using partially non-geographic addressing method for forming same | — | 2005-04-05 |
| 6603764 | Communications systems and method using partically non-geographic addressing method for forming same | — | 2003-08-05 |
| 5732131 | System and method for implementing local number portability | Prasad Nimmagadda | 1998-03-24 |
| 5251255 | Processing interactions among telecommunications call features | — | 1993-10-05 |