Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7916855 | System and method for storing and restoring communication dialog | Denise Caballero-McCann, Sameer M. Azad, Kai Wang, Yi Zhang | 2011-03-29 |
| 7872994 | SIP out-of-dialog REFER mechanism for handoff between front-end and back-end services | Randall B. Baird | 2011-01-18 |