1
Fen Chung Kung, Anish Sankalia, Hopeton Walker, Spencer Wang: Method for billing IP broadband subscribers. AT&T, August 10, 2004: US06775267 (342 worldwide citation)

A method of billing a variable bit rate communication between a first terminal and a distant terminal to a broadband subscriber permits changing billing parameters during a call in real time in response to user inputs including user requested changes in quality of service, changes in data rate and c ...


2
Fen Chung Kung, Jesse Eugene Russell, Hopeton Walker, Spencer Wang: Personal user network (closed user network) PUN/CUN. AT&T, June 26, 2001: US06252952 (274 worldwide citation)

An Internet Protocol Telephony Network and public switched telephone network, in which closed user groups may be dynamically defined and modified to take advantage of special billing within the closed user groups. Abbreviated dialing within the closed user groups may also be used to make dialing mor ...


3
Fen Chung Kung, Jesse Eugene Russell, Anish Sankalia, Spencer Wang: Chase me system. AT&T, Banner & Witcoff, April 16, 2002: US06373817 (256 worldwide citation)

A chase me method of routing a variable bit rate communication between a first terminal and a distant terminal over alternative networks including a circuit switched network and a packet network permits changing routing parameters remotely in response to user inputs including user requested changes ...


4
Fen Chung Kung, Anish Sankalia, Hopeton Walker, Spencer Wang: Method for billing IP broadband subscribers. AT&T, October 30, 2007: US07289489 (218 worldwide citation)

A method of billing a variable bit rate communication between a first terminal and a distant terminal to a broadband subscriber permits changing billing parameters during a call in real time in response to user inputs including user requested changes in quality of service, changes in data rate and c ...


5
Fen Chung Kung, Jesse Eugene Russell, Anish Sankalia, Hopeton Walker, Spencer Wang: Enhanced subscriber IP alerting. AT&T, November 30, 2004: US06826173 (179 worldwide citation)

A method of alerting a user of a variable bit rate communication between a first terminal and a distant terminal over alternative networks including a circuit switched network and a packet network permits the user the opportunity to change alerting preferences from a remote location or locally and t ...


6
Fen Chung Kung, Anish Sankalia, Hopeton Walker, Spencer Wang: Method for billing IP broadband subscribers. AT&T Intellectual Property II, July 20, 2010: US07760711 (155 worldwide citation)

A method of billing a variable bit rate communication between a first terminal and a distant terminal to a broadband subscriber permits changing billing parameters during a call in real time in response to user inputs including user requested changes in quality of service, changes in data rate and c ...


7
Fen Chung Kung, Hopeton Walker, Spencer Wang: IP conference call waiting. AT&T, November 9, 2004: US06816469 (141 worldwide citation)

An Internet Protocol Telephony Network and public switched telephone network that allows one or more call waiting callers to dynamically join in an existing and to establish a multiple-party conference call including the call waiting call. A call waiting call may also be added to an existing confere ...


8
Fen Chung Kung, Anish Sankalia, Spencer Wang: Conference server for automatic x-way call port expansion feature. AT&T, December 30, 2003: US06671262 (126 worldwide citation)

A broadband communication system including an Internet Protocol Telephony Network and public switched telephone network. The system may include one or more conference servers for combining IP packet streams in a conference call into a combined IP packet stream, such that the combined IP packet strea ...


9
Fen Chung Kung, Anish Sankalia, Spencer Wang: Automatic call manager traffic gate feature. AT&T, May 27, 2003: US06570855 (123 worldwide citation)

A method of managing a call traffic includes determining when a load of a first call manager exceeds a predetermined load level, and ameliorating the load when the load exceeds the predetermined load level. The load is ameliorated by either notifying a network that future calls are to be directed to ...


10
Fen Chung Kung, Jesse Eugene Russell, Anish Sankalia, Spencer Wang: Broadband cable telephony network architecture IP ITN network architecture reference model. AT&T, October 10, 2006: US07120139 (115 worldwide citation)

The present invention provides a system and method for a reliable, low-cost, secure Internet Protocol (IP) based network that provides broadband-based voice communications as well as video and data communications. The IP network is arranged to function with the infrastructure of the Public Switched ...