Mediatek Corporation

Hfi Innovation Inc.

Nuan-Yu Yang

Chien-Chun Huang-Fu

Yu-Syuan Conan Jheng

Wei-Chiang Peng

Hsi-Feng Chen

Shu-Liang Lee

A method to manage call continuity in a network environment including a circuit-switched network and an IP multimedia subsystem (IMS) network is provided. A UE monitors one or more ongoing sessions in an IMS network, and the ongoing sessions contain at least one conference call. The UE detects a network-switching event for the UE to switch from the IMS network to a circuit-switched CS network. The UE then determines the one or more ongoing sessions within the IMS network to be released or transferred to the CS network. Finally, the UE performs a session transfer procedure for transferring the determined sessions.

Method to support service continuity for multiple sessions

A proxy server including a system manager and a database is provided. The system manager includes an internal registrar module, an external registrar module, a session manager module and a signal routing module. The internal registrar module provides an internal register service for a plurality of nodes in a first service network. The external registrar module registers at an internet service provider providing network services in a second service network. The session manager module manages session processes in the first service network and the second service network and manages the network services shared between the registered nodes. The signal routing module routes control signals of the session processes between the first service network and the second service network. The database stores information related to the registered nodes.

Proxy server, computer program product and methods for providing a plurality of internet telephony services

Growing community of inventors

Taipei, Taiwan

Nuan-Yu Yang