| 11576039 |
Authentication of a 3G cellular device over 4G mobile network |
Eric W. Green, Inderpreet Singh Ahluwalia, Christopher McConnell, Timothy Shira |
2023-02-07 |
| 10033866 |
Facilitation of an internet protocol multimedia platform |
Richard Naughton, Jesus Sarte |
2018-07-24 |
| 8078167 |
Local number portability for mobility management |
Mark J. Enzmann, John Mark Dammrose, Annie Nguyen |
2011-12-13 |
| 7664496 |
Local number portability for mobility management |
Mark J. Enzmann, John Mark Dammrose, Annie Nguyen |
2010-02-16 |
| 6308070 |
Method and apparatus of minimizing incurred charges by the remote origination of telephone calls |
— |
2001-10-23 |
| 5546444 |
Methods and apparatus for communicating data via a cellular network control channel |
Peter O. Roach, Jr., Edward I. Comer, Charles M. Link, II |
1996-08-13 |
| 5526401 |
Methods and apparatus for acknowledging a paging message via a cellular network control channel |
Peter O. Roach, Jr., Edward I. Comer, Charles M. Link, II |
1996-06-11 |