| 摘要 |
A system and method complete a telephone call connection using an in-progress Internet connection. A user conducting the Internet session is notified of incoming calls, and may make outgoing calls. A voice gateway at the Internet Service Provider (ISP) handles transfer of telephone call information between a public switched telephone system (PSTN) and an ISP-access connection established by the ISP. In this way, voice is transmitted over the relatively real-time connection between the ISP and the user. Calls to the user are first attempted to be routed to the user, but when the user line is found to be busy, the call is forwarded to the voice gateway. The voice gateway receives the forwarded call, and determines whether the line associated with the forwarded call is conducting an Internet session. If such a connection is established, the voice gateway sends a notification over the Internet connection to the user. The user can then decide how to dispose of the call. If the user decides to take the call, voice information continues to be transferred between the user and the person making the call on the PSTN, using the ISP-access connection.
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