Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method for monitoring telephone call progress

Method for monitoring telephone call progress

US Patent 5325425 · Granted Jun 28, 1994

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and apparatus for detecting stuck calls in a communication session2010
Conferencing architecture employing media servers and enhanced session initiatio2009
Jitter buffer management2009
System and method for constructing phrases for a media server2009
Method for testing large-scale audio conference servers2005
Network-based disk redundancy storage system and method2004
Distributed telephony resource management method2002
Method for monitoring telephone call progress1996
Method for monitoring telephone call progress1996
Method for monitoring telephone call progress1991