Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11218517 | Media gateway | Andrew CALDWELL, Michael Jeffrey Evans, Matthew Ian Ronald WILLIAMS | 2022-01-04 |
| 10834143 | Telephony signalling element | Andrew CALDWELL, Charlie Stedman, David REEKIE | 2020-11-10 |
| 10637893 | Media gateway | Andrew CALDWELL, Michael Jeffrey Evans, Matthew Ian Ronald WILLIAMS | 2020-04-28 |
| RE47632 | Controlling communication sessions | Michael Lyons, David S. HAMMOND, Oliver James Carter | 2019-10-01 |
| 10355979 | Media routing | — | 2019-07-16 |
| 9641561 | Method and system for managing a SIP server | — | 2017-05-02 |
| 9497108 | Media sessions | — | 2016-11-15 |
| 9191414 | Method and system for managing a SIP server | — | 2015-11-17 |
| 9037729 | SIP server overload control | — | 2015-05-19 |
| 8812664 | Controlling an apparatus | Alastair Mitchell, Andy Tylee, Colin Tregenza DANCER, Steven Kennedy | 2014-08-19 |
| 8687640 | Controlling communication sessions | Michael Lyons, David S. HAMMOND, Oliver James Carter | 2014-04-01 |