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Method and Apparatus for Linking Telephony over IP with Conventional Phones

IP.com Disclosure Number: IPCOM000012988D
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-11
Document File: 1 page(s) / 64K

Publishing Venue

IBM

Abstract

A method is disclosed for supporting fail over dialing between Internet phones and regular phones when dialed phone is unavailable. In the prior art connecting Internet phones to regular phones and vice versa has become common. I disclose the idea of having a database linking Internet phone numbers with regular phone numbers, and access numbers of Internet Services Providers (ISP). If the requested phone is unavailable then the sister phone number listed in the database is dialed in the other domain and the connection completed. Example 1 David has dialed into his ISP with his regular phone to get an Internet connection. Nancy phones David's regular phone number. The telephone company router detects that David's line is busy and that he called his ISP. From this information the router decides that David is on the Internet and dials his Internet phone. David answers and the call is routed from the regular phone network to the Internet. Example 2

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Method and Apparatus for Linking Telephony over IP with Conventional Phones

A method is disclosed for supporting fail over dialing between Internet phones and regular phones when dialed phone is unavailable. In the prior art connecting Internet phones to regular phones and vice versa has become common. I disclose the idea of having a database linking Internet phone numbers with regular phone numbers, and access numbers of Internet Services Providers (ISP). If the requested phone is unavailable then the sister phone number listed in the database is dialed in the other domain and the connection completed.

Example 1

David has dialed into his ISP with his regular phone to get an Internet connection. Nancy phones David's regular phone number. The telephone company router detects that David's line is busy and that he called his ISP. From this information the router decides that David is on the Internet and dials his Internet phone. David answers and the call is routed from the regular phone network to the Internet.

Example 2

David is not online when Nancy dials his Internet phone. The Internet phone company router detects that David's Internet phone is not responding and decides that David is not on the Internet and dials his regular phone number. David answers and the call is routed from the Internet to the regular phone network.

Example 3 (Extended Example)

Nancy is out shopping and decides to phone David who is at home. Nancy knows that David is usually online at th...