| 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 |