Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7978827 | Automatic configuration of call handling based on end-user needs and characteristics | Paul Roller Michaelis | 2011-07-12 | |
| 7689939 | Software application break through a screen blanker | — | 2010-03-30 | |
| 7627091 | Universal emergency number ELIN based on network address ranges | Robert F. Liston, Sung-Hwan Moon | 2009-12-01 | |
| 7127044 | Pooling numbers for E911 calls from unnamed endpoints | David Chavez | 2006-10-24 | $23,921,000 |
| 6697456 | Speech analysis based answer detection for IP based telephones | Norman C. Chan | 2004-02-24 | $110,555,000 |
| 6678374 | Tone based answer detection for IP based telephones | — | 2004-01-13 | $35,350,000 |
| 6650751 | Answer detection for IP based telephones using passive detection | — | 2003-11-18 | $14,251,000 |