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No:7388951
Access code enhancement for caller preview service
No:5764748
Advanced call waiting processing
No:5680446
Advanced intelligent network screening
No:6330316
Alternate routing schemes using quality of service information for calls involving unreliable networks
No:5361295
Anonymous interactive telephone system
No:4847890
Anonymous interactive telephone system
No:5768348
Anonymous interactive telephone system
No:5058152
Anonymous interactive telephone system having direct connect feature
No:4878239
Anonymous interactive telephone system with expanded outward calling features
No:6956937
Apparatus and method for network-initiated real-time multi-party communications
No:7194076
Apparatus and method for network-initiated real-time multi-party communications
No:6690780
Apparatus and method for network-initiated real-time multi-party communications
No:6330315
Apparatus and method for routing blocked calls
No:5818920
Apparatus for controlling communication connections based on local time
No:4321429
Apparatus for selecting terminal equipment in telephone lines
No:6005930
Apparatus, method and system for controlling secondary treatment by a distant switch for multiple leg telecommunication sessions
No:6009159
Apparatus, method and system for controlling the start of alerting of multiple leg telecommunication sessions
No:5181238
Authenticated communications access service
No:6731731
Authentication method, authentication system and recording medium
No:4625081
Automated telephone voice service system
No:5737701
Automatic authentication system
No:5909487
Automatic call generator within a telecommunications system
No:5388150
Automatic incoming telephone call identification and disposition system
No:6330317
Call blocking system
No:5509064
Call routing and handling system for conveying confidential medical test result information to anonymous callers
No:7327837
Call routing method
No:5604792
Call screening method
No:5596627
Call screening method using selective call acceptance
No:5757899
Call screening using subscriber specified timers and schedules
No:5586175
Call-processing system and method
No:6643362
Call-processing system and method
No:6542583
Caller identification verification system
No:7130402
Communication request processing system communication request processing method communication request processing apparatus
No:5200994
Communication terminal apparatus and control method with party identification features
No:5220599
Communication terminal apparatus and its control method with party identification and notification features
No:6275572
Congestion control method and system in an exchange
No:5295183
Congestion control system for telecommunications
No:5544231
Conversation recording/playback method in a key phone system
No:5835572
Customized, billing controlled call bridging system
No:5832068
Data processing system with real time priority updating of data records and dynamic record exclusion
No:7099444
Database service for telemarketers to screen and block selected telecommunication messages
No:6614888
Device and method for telecommunication systems
No:4232198
Device for establishing conference calls via at least one telephone exchange switching system
No:7158630
Do-not-call compliance management for predictive dialer call centers
No:6295456
Dynamic binding and bridging in a communication system
No:4371752
Electronic audio communication system
No:6700964
Encapsulation, compression and encryption of pcm data
No:3436486
Error detection system
No:5949864
Fraud prevention apparatus and method for performing policing functions for telephone services
No:5619555
Graphical computer interface for an audio conferencing system

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