| 7573981 |
Method and apparatus for improving premises-line call availability in an alarm system |
Jeffry M. Hickey |
2009-08-11 |
| 6973165 |
Method and apparatus for improving premises-line call availabiliy in an alarm system |
Jeffrey Hickey |
2005-12-06 |
| 6825762 |
Device for directing a premises alarm panel to a backup radio network upon detection of use of the PSTN by another premises device |
Jeffrey Hickey, Joseph Campanelli |
2004-11-30 |
| 6615056 |
Method and apparatus to protect fixed wireless terminal from foreign voltage at the tip and ring connection |
Alvin Taylor, Fred Engelking, Louis W. Schornack |
2003-09-02 |
| 6324410 |
Method and apparatus for interfacing a cellular fixed wireless terminal to the extension side of a PBX/PABX |
Frederick S. Engelking, Rex Nathanson |
2001-11-27 |
| 6035220 |
Method of determining end-of-dialing for cellular interface coupling a standard telephone to the cellular network |
George Claudio, Jeffry M. Hickey, Fred Engelking, Paul William Douglas |
2000-03-07 |