| 9756189 |
Method and system for routing and security for telephone calls over a packet-switched network |
Saswata Bhattacharya, Harvey S. Schultz, Quan Li, Serafim Maroulis |
2017-09-05 |
| 8982875 |
Method and system for routing and security for telephone calls over a packet-switched network |
Saswata Bhattacharya, Harvey S. Schultz, Quan Li, Serafim Maroulis |
2015-03-17 |
| 8254371 |
Method and system for routing and security for telephone calls over a packet-switched network |
Saswata Bhattacharya, Harvey S. Schultz, Quan Li, Serafim Maroulis |
2012-08-28 |
| 6584094 |
Techniques for providing telephonic communications over the internet |
Serafim Maroulis, Dennis Specht |
2003-06-24 |
| 6353610 |
Method and system for call signaling in telephone calls over a packet-switched network |
Saswata Bhattacharya, Harvey S. Schultz, Tript P. Singh, Quan Li, Ghassan Z. Qadah +1 more |
2002-03-05 |
| 5787088 |
Method and system for interoperating between |
Nuri Ruhi Dagdeviren, Jerome Prestinario, Kenneth R. Klein |
1998-07-28 |
| 5502727 |
Image and audio communication system having graphical annotation capability |
Anthony James Catanzaro, Steven C. Dzik, Charles Hull, Jerome Prestinario, Minakanagurki V. Ranganath +1 more |
1996-03-26 |
