Hisao M. Chang

VoiceXML and rule engine based switchboard for interactive voice response (IVR) services

Bio-phonetic multi-phrase speaker identity verification

Enhanced ip conferencing service

Method and system for an automated departure strategy

Methods and apparatus to manage conference calls

System and method for identifying telephone callers

Automated directory assistance system for a hybrid TDM/VoIP network

Apparatus and method for providing messages in a social network

Methods and Apparatus to Generate Relevance Rankings for Use by a Program Selector of a Media Presentation System

Method and apparatus for associating micro-blogs with media programs