Inventor
HEILMANN CRAIG
US11 patents
Patents
11 patentsUS6320948B1Nov 20, 2001
Telephony security system
SECURELOGIX CORP134 citations97
US6700964B2Mar 2, 2004
Encapsulation, compression and encryption of PCM data
SECURELOGIX CORP71 citations96
US6249575B1Jun 19, 2001
Telephony security system
SECURELOGIX CORP87 citations96
US6760420B2Jul 6, 2004
Telephony security system
SECURELOGIX CORP80 citations95
US6735291B1May 11, 2004
Virtual private switched telephone network
SECURELOGIX CORP63 citations95
US7231027B2Jun 12, 2007
Encapsulation, compression, and encryption of PCM data
SECURELOGIX CORP19 citations91
US6760421B2Jul 6, 2004
Telephony security system
SECURELOGIX CORP33 citations91
US7440558B2Oct 21, 2008
Telephony security system
SECURELOGIX CORP40 citations90
US6879671B2Apr 12, 2005
Virtual private switched telecommunications network
SECURELOGIX CORP16 citations81
US6687353B1Feb 3, 2004
System and method for bringing an in-line device on-line and assuming control of calls
SECURELOGIX CORP18 citations81
US6718024B1Apr 6, 2004
System and method to discriminate call content type
SECURELOGIX CORP18 citations80