Inventor
KALMANEK JR CHARLES ROBERT
US28 patents
⚠️ This page may combine multiple inventors who share the name “KALMANEK JR CHARLES ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T CORP
7 patentsUS6711152B1Mar 23, 2004
Routing over large clouds
AT & T CORP170 citations99
US7151772B1Dec 19, 2006
Method for performing lawfully-authorized electronic surveillance
AT & T CORP114 citations98
US6574335B1Jun 3, 2003
Method for simulating a ring back for a call between parties in different communication networks
AT & T CORP126 citations98
US6498797B1Dec 24, 2002
Method and apparatus for communication services on a network
AT & T CORP153 citations98
US6954456B2Oct 11, 2005
Method for content-aware redirection and content renaming
AT & T CORP66 citations95
US7035410B1Apr 25, 2006
Method and apparatus for enhanced security in a broadband telephony network
AT & T CORP36 citations92
US6665299B1Dec 16, 2003
Method and system for telephony and high speed data access on a broadband access network
AT & T CORP5 citations62
AT & T IP II LP
7 patentsUS7808968B1Oct 5, 2010
Method for determining non-broadcast multiple access (NBMA) connectivity for routers having multiple local NBMA interfaces
AT & T IP II LP99 citations98
US8724625B2May 13, 2014
Method and apparatus for coordinating a change in service provider between a client and a server with identity based service access management
AT & T IP II LP15 citations92
US9277058B2Mar 1, 2016
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP1 citations63
US10237414B2Mar 19, 2019
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP0 citations52
US9942411B2Apr 10, 2018
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP0 citations52
US9762739B2Sep 12, 2017
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP0 citations52
US8813213B2Aug 19, 2014
Reverse firewall with self-provisioning
AT & T IP II LP1 citations51