Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9942926 | System, method and computer readable medium for bearer activation in a core network for wireless devices | Bruno Landais, Harish Viswanathan, Deborah Barclay | 2018-04-10 |
| 9544927 | System, method and computer readable medium for bearer activation in a core network for wireless devices | Bruno Landais, Harish Viswanathan, Deborah Barclay | 2017-01-10 |
| 9392437 | Method and system for IP multimedia bearer path optimization through a succession of border gateways | — | 2016-07-12 |
| 9357373 | Method and system for IP multimedia bearer path optimization through a succession of border gateways | — | 2016-05-31 |
| 8948735 | Mobile termination roaming forwarding for mobile devices | Lu Tian | 2015-02-03 |
| 8588791 | Method for providing IMS support for enterprise PBX users | Hong Xie | 2013-11-19 |
| 8520687 | Method and apparatus for internet protocol multimedia bearer path optimization through a succession of border gateways | — | 2013-08-27 |
| 8218462 | Mobile communication device receipt through second telecommunication network of call directed to registration in first telecommunication network | Ruth Gayde, Michael J. Rudolph | 2012-07-10 |
| 8139541 | Method and system for bypassing media gateways in wireless networks | James A. Calme, John Matthew Gafrick | 2012-03-20 |
| 7978683 | Method of transferring call transition messages between network controllers of different radio technologies | Dan Anthony Balogh, Michael F. Dolan, Douglas Knisely, Subhasis Laha, Chung-Zin Liu | 2011-07-12 |
| 7885234 | Method and system for providing voice call continuity | — | 2011-02-08 |
| 7680481 | Method and apparatus for linking charging records | Nick J. Mazzarella, Bharat H. Patel, Thomas Trayer Towle | 2010-03-16 |
| 7668183 | Flexible SIP profile for mixed networks | James A. Calme | 2010-02-23 |
| 7639669 | Controlling communication path reservations in a packet network with non-homogeneous nodes | Peter J. McCann | 2009-12-29 |
| 7586857 | Fast network SIP/SDP procedures for conference operations upon request from end user with optimization of network resources | Eric Harold Henrikson, Chung-Zin Liu, Hong Xie | 2009-09-08 |
| 7551604 | Method for reducing service interruptions during a hand off in a wireless system | Peter J. McCann, Michael F. Dolan, Frank M. Alfano | 2009-06-23 |
| 7535889 | Server component redirection of new media path portion between packet-switched and circuit-switched portions of mobile switching center | Joseph James Lichter | 2009-05-19 |
| 7499403 | Control component removal of one or more encoded frames from isochronous telecommunication stream based on one or more code rates of the one or more encoded frames to create non-isochronous telecommunications stream | Peter J. McCann, Michael D. Turner | 2009-03-03 |
| 7443879 | Communication between user agents through employment of codec format unsupported by one of the user agents | Hong Xie | 2008-10-28 |
| 7366514 | Method of handing off a packet switched to a circuit switched call | — | 2008-04-29 |
| 7353021 | Network controller replacement of indication of one or more specific network connections usable by first network component in signaling message for second network component with wild card network connection information | Hong Xie | 2008-04-01 |
| 7301938 | Method of transferring a packet switched to a circuit switched call | — | 2007-11-27 |
| 7295843 | Server component network resource allocation for handoff between mobile switching center packet-switched portion and mobile switching center circuit-switched portion | Thomas McRoberts | 2007-11-13 |
| 7068619 | Radio link control with limited retransmissions for streaming services | Krishna Balachandran, Kirk Chang, Wei Luo, Sanjiv Nanda | 2006-06-27 |
| 7031747 | Internet protocol multimedia subsystem component providing of packet-switched switching functions to serving mobile switching center feature server | Bernard Louis Cyr, Hong Xie | 2006-04-18 |