Assignee
EXCEL SWITCHING CORP
US31 patents
Top patents by PatentIndex Score
US6118779ASep 12, 2000
Apparatus and method for interfacing processing resources to a telecommunications switching system
EXCEL SWITCHING CORP56 citations96
US5826030AOct 20, 1998
Telecommunication switch having a universal API with a single call processing message including user-definable data and response message each having a generic format
EXCEL SWITCHING CORP63 citations96
US5737320AApr 7, 1998
Methods of communication for expandable telecommunication system
EXCEL SWITCHING CORP70 citations96
US6397385B1May 28, 2002
Method and apparatus for in service software upgrade for expandable telecommunications system
EXCEL SWITCHING CORP157 citations92
US6088749AJul 11, 2000
Universal API with generic call processing message having user-defined PPL event ID and generic response message for communications between telecommunications switch and host application
EXCEL SWITCHING CORP55 citations92
US6058181AMay 2, 2000
Method and system for developing a telecommunication application for performing call-processing functions in a programmable telecommunication switch
EXCEL SWITCHING CORP20 citations92
US6005841ADec 21, 1999
Redundancy arrangement for telecommunications system
EXCEL SWITCHING CORP43 citations92
US5912801AJun 15, 1999
Telecommunication switch chassis
EXCEL SWITCHING CORP76 citations92
US6463056B1Oct 8, 2002
Arrangement for providing network protocol data independence in an expandable telecommunications system
EXCEL SWITCHING CORP47 citations90
US6147872ANov 14, 2000
Injector/ejector machanism for printed circuit cards
EXCEL SWITCHING CORP49 citations90
US5920546AJul 6, 1999
Method and apparatus for conferencing in an expandable telecommunications system
EXCEL SWITCHING CORP25 citations90
US5966649AOct 12, 1999
Cellular-telephone central call-processing system utilizing object-oriented software in adjunct personal computer for generating billing records
EXCEL SWITCHING CORP30 citations88
US6950311B1Sep 27, 2005
Telecommunications switch/server
EXCEL SWITCHING CORP23 citations87
US7113580B1Sep 26, 2006
Method and apparatus for performing conferencing services and echo suppression
EXCEL SWITCHING CORP22 citations86
US6603757B1Aug 5, 2003
Voice-data access concentrator for node in an expandable telecommunications system
EXCEL SWITCHING CORP31 citations85
US6002683ADec 14, 1999
Bridge for expandable telecommunications system
EXCEL SWITCHING CORP11 citations82
US6594685B1Jul 15, 2003
Universal application programming interface having generic message format
EXCEL SWITCHING CORP17 citations80
US7359317B1Apr 15, 2008
Redundancy arrangement for telecommunications switch
EXCEL SWITCHING CORP15 citations78
US5864551AJan 26, 1999
Method of operating a bridge for expandable telecommunications system
EXCEL SWITCHING CORP4 citations74
US6898199B1May 24, 2005
Architecture for providing flexible, programmable supplementary services in an expandable telecommunications system
EXCEL SWITCHING CORP6 citations73
US6389024B1May 14, 2002
Flexible call routing system
EXCEL SWITCHING CORP13 citations73
US6285670B1Sep 4, 2001
Telecommunications switch with multiple ports for host-node communications
EXCEL SWITCHING CORP9 citations73
US6226288B1May 1, 2001
Sub-rate switching telecommunications switch
EXCEL SWITCHING CORP13 citations73
US6119187ASep 12, 2000
Telecommunication system with universal API using generic messages having user functionality associated with predetermined functions, primitives and logical states for defining PPL component state machines
EXCEL SWITCHING CORP8 citations73
US5987035ANov 16, 1999
Process for signaling messages in a data switching network
EXCEL SWITCHING CORP14 citations72
US6701131B2Mar 2, 2004
International universal call progress analysis system
EXCEL SWITCHING CORP10 citations71
US6137801AOct 24, 2000
Telecommunication switching system administrative and management tools
EXCEL SWITCHING CORP8 citations63
US6373849B1Apr 16, 2002
Resource interface unit for telecommunications switching node
EXCEL SWITCHING CORP5 citations62
US7031752B1Apr 18, 2006
Media resource card with programmable caching for converged services platform
EXCEL SWITCHING CORP2 citations56
US6055237AApr 25, 2000
Telecommunications switching system with readily configurable supervisory control
EXCEL SWITCHING CORP1 citations51
US7319741B1Jan 15, 2008
Media resource card with dynamically allocated resource points
EXCEL SWITCHING CORP0 citations42