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US6144644A Expired / Lapsed US ⏱️ 0.0 years remaining

System and method for implementing call waiting functions over a network

Assignee: Hanger Solutions LLC
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Filing: 1998-05-20
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Granted: 2000-11-07
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Expires: 2018-05-20
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Abstract

Abstract System and method for implementing call waiting functions over a network architecture which includes a public switched telephone network (PSTN) and the Internet. The call waiting system allows a user to receive incoming call information from a third party without interrupting an active connection with a second party, such as an Internet Service Provider (ISP). When the user attempts to connect to the ISP, a call waiting service is activated at a service control point connected to the PSTN and the user is notified about any incoming call attempts made after the user establishes a successful connection with the second party. The call waiting system indicates the number of, and provides information about incoming call attempts to the user. Meanwhile, the third party caller has the option of leaving a voice mail message for the user. If the user is actively connected to the Internet, a call waiting Internet server can be used to provide the incoming call information to the user's computer terminal. The call waiting system further allows the user to answer incoming calls in real-time when connected to the Internet and return unsuccessful incoming call attempts at a later time. Thus, Internet users can enjoy an uninterrupted Internet session without missing incoming calls. The call waiting system is configurable for non-Internet applications for allowing receipt of incoming call information without interrupting an active telephone connection.

Inventors

  • 👤 James A. Bajzath
  • 👤 Nilay Ghoghari
  • 👤 Darek A. Smyk

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 05:50
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/428; H04M3/4281; H04M3/50; H04M3/53; H04M3/533; H04M7/00; H04M7/006; H04M7/12

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 280 words
A method of implementing call waiting functions over a telephone network for a user connected to a data network, comprising the steps of: in response to a connection from a user to an Internet Service Provider (ISP), activating a call waiting service at a service control point (SCP) for the user's telephone number; said activating step further comprising the steps of: in response to the connection from the user to the ISP, determining at the SCP the call waiting subscription status of the user; if the user is subscribed to the call waiting service, activating a trigger in a switch in the telephone network to alert the SCP of subsequent call attempts to the user; and routing the call to the ISP for creation of a data connection between the user and ISP; in response to a subsequent call attempt to the user, determining at the SCP call notification instructions for the user; if the user requests notification over the data connection, sending call information from the SCP via a call waiting Internet server to the user; in response to receiving the call information, sending a message from the user via the call waiting Internet server to the SCP containing call handling preferences; and in response to termination of the connection to the data network, deactivating the call waiting service at the SCP; said deactivating step further comprising the steps of: in response to termination of the user's call to the ISP, determining at the SCP the call waiting deactivation instructions; if call waiting is active for the user, deactivating the trigger in the switch in the telephone network; and terminating call processing in the SCP and the telephone network.
Claim 2
Independent Claim 280 words
A method of implementing call waiting functions over a telephone network for a user connected to a data network, comprising the steps of: in response to a connection from a user to an Internet Service Provider (ISP), activating a call waiting service at a service control point (SCP) for the user's telephone number; said activating step further comprising the steps of: in response to the connection from the user to the ISP, determining at the SCP the call waiting subscription status of the user; if the user is subscribed to the call waiting service, activating a trigger in a switch in the telephone network to alert the SCP of subsequent call attempts to the user; and routing the call to the ISP for creation of a data connection between the user and ISP; in response to a subsequent call attempt to the user, determining at the SCP call notification instructions for the user; if the user requests notification over the data connection, sending call information from the SCP via a call waiting Internet server to the user; in response to receiving the call information, sending a message from the user via the call waiting Internet server to the SCP containing call handling preferences; and in response to termination of the connection to the data network, deactivating the call waiting service at the SCP; said deactivating step further comprising the steps of: in response to termination of the user's call to the ISP, determining at the SCP the call waiting deactivation instructions; if call waiting is active for the user, deactivating the trigger in the switch in the telephone network; and terminating call processing in the SCP and the telephone network.
Claim 3
Dependent Claim 41 words
The method of claim 1 wherein if the user requests notification via voice mail: activating a message waiting indicator for the user's line at the switch in the telephone network; and routing the subsequent call attempt to a voice mail system.
Claim 4
Dependent Claim 22 words
The method of claim 1 further comprising the step of registering the user's Internet connection status with a call waiting Internet server.
Claim 5
Dependent Claim 37 words
The method of claim 1 wherein if the call handling preferences contain a request by the user to answer the call, routing the call from the switch in the telephone network via the ISP to the user.
Claim 6
Dependent Claim 38 words
The method of claim 1 wherein if the call handling preferences contain a request by the user to not answer the call, sending a message from the SCP to the switch in telephone network to block the call.

References Cited (Backward Citations)

US5434906A Cited
US5625676A Cited
US5608786A Cited
WO1996038018A1 Cited
US5818836A Cited
US5805587A Cited
US5751706A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-11-07 2004-05-08 2004-11-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-11-07 2008-05-08 2008-11-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-11-07 2012-05-08 2012-11-07 $7700.00 Window Closed / Lapsed

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