VIRTUAL TELEPHONE SUBSCRIBER GROUP SYSTEM FOR IMPLEMENTING IP PACKET SUBSCRIBER ACCESS

摘要

The present invention discloses a virtual telephone subscriber group system for implementing IP packet subscriber access. IP packet subscriber sends signaling to IP packet protocol stack processing module by IP packet subscriber interface module; call signaling is generated after the signaling passes through 1P packet protocol stack processing module, and then is sent to IP packet subscriber calling module. IP packet subscriber call controlling module controls the call according to the call signaling, searches the information saved by IP packet subscriber data managing module and obtains the service in corresponding to the call signaling, and then sends the service process instruction to IP packet subscriber CENTREX service processing module. IP packet subscriber CENTREX service processing module processes the service according to the service process instruction. The processed result will be sent to IP packet subscriber by IP packet subscriber interface module after encoded by IP packet subscriber call controlling module and later by IP packet protocol stack processing module. This system can establish the virtual private network in PSTN for IP packet subscriber.