| 摘要 |
A telecommunications network (100) that integrates infrastructures from the Plain Old Cellular System (POCS)(998), Packet-Switched Networks (PSN), and Voice-over-IP (VoIP) networks (999) such as those based on the H.323 protocol or the Session Initiation Protocol (SIP). The integrated network (100) supports VoIP mobile terminals as well as legacy mobile terminals operating through VoIP proxies (132 and 144) which act as clients to make legacy mobile terminals appear as IP terminals to VoIP servers in the network. The VoIP proxies may be implemented in the base station (140), in an intermediate Radio Access Network (RAN)(130), or in the terminal itself (142) (making the terminal a VoIP terminal) in which case no proxy is needed in the network. The proxies and VoIP terminals support both the native POCS and the native VoIP signaling and functionality. A Mobile VoIP Call Control Server (MVoIPCCS) (118) fuses native POCS call-service functions, Wireless Intelligent Network (WIN) service functions, and native PSN/VoIP session/call control functions to create a super-set of session/call control functions. Integrated mobility handling functionality is provided by a generalized Visitor Location Register (VLR)(124) that fuses legacy POCS ANSI-41 VLR functions, SIP location server functions, and H.323 location management functions. POCS authentication functions are integrated with PSN/VoIP security functions. Teleservices and resource management functions are also integrated.
|
