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Class Information
Number: 379/215.01
Name: Telephonic communications > Special services > Call waiting
Description: Subject matter for signalling a first station in communication with a second station that a third station desires communication with the first station.

Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
6498841 Method and system for providing enhanced call waiting and caller identification Dec. 24, 2002
6496283 Communication device Dec. 17, 2002
6496572 Call-waiting tone detection technique Dec. 17, 2002
6496569 Method and system for providing enhanced caller identification and privacy management Dec. 17, 2002
6490346 Apparatus and method for providing music-on-hold service in key telephone system Dec. 3, 2002
6490348 Switching system for providing an improved call waiting service Dec. 3, 2002
6463146 Call waiting service in a telecommunications network Oct. 8, 2002
6456711 Method for placing a call intended for an enhanced network user on hold while the enhanced network user is unavailable to take the call using a distributed feature architecture Sep. 24, 2002
6438222 Method and system for processing a telephone call while on-line Aug. 20, 2002
6438216 Nonintrusive call notification method and system using content-specific information Aug. 20, 2002
6427009 Enhanced apparatus for use with caller ID system Jul. 30, 2002
6418216 Caller-controller barge-in telephone service Jul. 9, 2002
6418209 Telecommunications device equipped with in-call incoming call notification function and method for detecting in-call incoming signal notification Jul. 9, 2002
6415026 Method of and system for enhanced call waiting in a telecommunications network Jul. 2, 2002
6415020 Call on-hold improvements Jul. 2, 2002
6404868 Peer-to-peer transfer using pre-existing caller ID CLASS FSK signaling infrastructure Jun. 11, 2002
6404863 First party signalling for call waiting calling number identification (CWCID) system Jun. 11, 2002
6404860 System and method for internet call management with text-to-speech messaging Jun. 11, 2002
6400809 Method and system for text-to-speech conversion of caller information Jun. 4, 2002
6389132 Multi-tasking, web-based call center May. 14, 2002
6381320 Access to extended telephone services via the internet Apr. 30, 2002
6377668 Internet priority call device Apr. 23, 2002
6366661 Online call routing apparatus and method Apr. 2, 2002
6343121 Selective call waiting service Jan. 29, 2002
6339639 Enhanced call-waiting with caller identification method and apparatus Jan. 15, 2002
6333974 Detection of a call-waiting tone by a modem Dec. 25, 2001
6330318 Method of and system for interrupting and parking calls in a switched telecommunications network Dec. 11, 2001
6327356 Call forwarding on busy or no answer when call waiting is active Dec. 4, 2001
6317488 Call waiting-caller identification notification device Nov. 13, 2001
6314173 Telephone apparatus having a multifunction call-waiting operating portion Nov. 6, 2001
6307930 Method for providing telephone access to an internet user connected to plural bonded telephone lines Oct. 23, 2001
6304636 Forwarding voice messages to a called party using electronic mail Oct. 16, 2001
6304644 Apparatus and method for cost effective caller identification and call-waiting for a multi-line telephone Oct. 16, 2001
6289092 Method and apparatus for selectively suspending or activating a call waiting service Sep. 11, 2001
6278771 Method and system for providing enhanced call waiting with verification and name change service Aug. 21, 2001
6263061 Digital button telephone system and extension terminal for the same Jul. 17, 2001
6219415 Call hold state notification across a communications network Apr. 17, 2001
6219414 Method and system for providing enhanced call waiting Apr. 17, 2001
6219413 Apparatus and method for called-party telephone messaging while interconnected to a data network Apr. 17, 2001
6208852 Telephone, telephone exchange system, storage medium and method incorporating suspend service Mar. 27, 2001
6208729 Method and apparatus for on-hold switching Mar. 27, 2001
6208727 Method of alerting apartment residents to the arrival of visitors Mar. 27, 2001
6208718 Emergency interrupt technique Mar. 27, 2001
6208728 Call waiting in call setup Mar. 27, 2001
6198916 Call screening in wireless systems Mar. 6, 2001
6192120 Method and apparatus for controlling call waiting service Feb. 20, 2001
6169796 Call rerouter method and apparatus Jan. 2, 2001
6160877 Method of screening and prioritizing an incoming call Dec. 12, 2000
6104800 Method for providing call waiting notification to a party engaged in a data call Aug. 15, 2000
6097795 Method for notification and control of incoming calls in a network Aug. 1, 2000

1 2 3 4 5 6 7 8 9

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