Smooth morphing between personal video calling avatars
WO2007024648A2
Methods and apparatus for differential encoding
WO2007014228A2
Methods and apparatus for enhancing ringback tone quality during telephone communications
WO2006089052A2
Methods and apparatus for delivering services
US7813490B2
Methods and apparatus for implementing customized ringback
US7558861B1
System and methods for controlling an application
US7072296B2
Methods and apparatus for network signal aggregation and bandwidth reduction
US2003185160A1
Technique for use in an echo canceller for providing enhanced voice performance for mobile-to-mobile calls in a GSM environment through use of inter-canceller communication and co-ordination
US2003190040A1
Long-haul path length delay estimator and compensator for an echo canceller
US7095827B2
Broadcasting and conferencing in a distributed environment
US7272662B2
Systems and methods for routing messages to communications devices over a communications network
US6983250B2
Method and system for enabling a user to obtain information from a text-based web site in audio form
US7043538B2
Thin instant messaging proxy interface with persistent sessions
US7174006B2
Method and system of VoiceXML interpreting
US6678369B2
Network interface redundancy
US6396851B1
DTMF tone detection and suppression with application to computer telephony over packet switched networks
US2001043684A1
Telephone and wireless access to computer network-based audio
