Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8126814 | Method and system for installing software and hardware feature licenses on devices | Prabhakara R. Yellai, Mihir Maniar, Eric B. Eggel, Jyotsna Gummaraju | 2012-02-28 |
| 5828742 | Caller discrimination within a telephone system | William J. Beyda, Jay Thomas | 1998-10-27 |
| 5473672 | Inband messaging system interface of a PBX | — | 1995-12-05 |
| 5388151 | Technique for reducing message notification blockage in voice mail systems | Rachel Ramsay, Brian M. Tennant | 1995-02-07 |
| 5175761 | Call transfers by voice messaging system (VMS) integrated to a private branch exchange | Rachel Ramsay, Joseph F. Khouri | 1992-12-29 |