AT&T Labs

US Patent 7187678 Authentication for use of high speed network resources

US Patent 7203302 Geographical call routing for a non-emergency calling service

US Patent 7216153 Telecommunications equipment and customer information retrieval system

US Patent 7218719 Advanced intelligent single telephone number routing

US Patent 7227837 Fault tolerant virtual tandem switch

US Patent 7242753 Local routing system and method

US Patent 7242754 System and method for implementing and accessing call forwarding services

US Patent 7248562 System and method for measurement-based adaptive caching of virtual connections

US Patent 7274786 Method and system for processing telephone calls via a remote tie-line

US Patent 7292688 Geographical call routing for a non-emergency calling service

US Patent 7295665 Method and system for routing a communication through an alternate carrier

US Patent 7302052 Advanced intelligent single telephone number routing

US Patent 7304986 ATM-based distributed network switching system

US Patent 7305070 Sequential presentation of long instructions in an interactive voice response system

US Patent 7307993 Controller based call control for ATM SVC signaling

US Patent 7333595 Voice mail interface

US Patent 7336653 Internet caller identification system and method

US Patent 7337220 Unified interface for managing DSL services

US Patent 7349534 Call routing from first to second dialog of interactive voice response system

US Patent 7352857 Method and apparatus for spectral containment over telephone service lines

US Patent 7366285 Multi-modal communications method

US Patent 7421070 Advanced intelligent single telephone number routing

US Patent 7443975 Geographical call routing for a non-emergency calling service

US Patent 7447499 Intelligent roaming system with over the air programming

US Patent 7453994 Sequential presentation of long instructions in an interactive voice response system

US Patent 7461381 Flexible network platform and call processing system

US Patent 7463884 System and method for updating data in remote devices

US Patent 7499536 Apparatus and method for intelligent call routing and call return

US Patent 7502742 Method and system for voice recognition menu navigation

US Patent 7505575 Method and system for processing telephone calls via a remote tie-line

US Patent 7526731 Method for integrating user models to interface design

US Patent 7561577 Multiservice use of network connection capability under user-to-network interface signaling

US Patent 7568149 Method and system for controlling the operation of hyperlinks

US Patent 7573997 Local routing system and method

US Patent 7586844 System and method for measurement-based adaptive caching of virtual connections

US Patent 7593396 System and method for providing remote access to telecommunications services

US Patent 7609699 Virtual private network over asynchronous transfer mode

US Patent 7653194 Geographical call routing for a non-emergency calling service

US Patent 7656859 Internal substitution bi-level addressing for compatible public networks

US Patent 7701947 Authentication for use of high speed network resources

US Patent 7752666 Detection of routing loops based on time-to-live expiries

US Patent 7792057 Method and system for computing multicast traffic matrices

US Patent 7796190 System and method for adaptive content rendition

US Patent 7813349 Service aware switched SDH/SONET/TDM network

US Patent 7817793 Advanced intelligent single telephone number routing

US Patent 7830785 System and method for restoration in a multimedia IP network

US Patent 7836405 Method for integrating user models to interface design

US Patent 7843932 Secure ATM-based distributed virtual tandem switching system and method

US Patent 7853003 Geographical call routing for a non-emergency calling service

US Patent 7889717 Multiservice use of network connection capability

US Patent 7899786 Method and system for distributed user profiling

US Patent 7907714 Profile management system including user interface for accessing and maintaining profile data of user subscribed telephony services

US Patent 7907719 Customer-centric interface and method of designing an interface

US Patent 7921096 Emergency facility information system and methods

US Patent 7940898 Method and system for routing calls based on a language preference

US Patent 7949709 Internal substitution bi-level addressing for compatible public networks

US Patent 7983409 Geographical call routing for a non-emergency calling service

US Patent 7995563 Internet caller identification system and method