System and method for notification of 911 telephone calls using a link monitoring system
First Claim
Patent Images
1. A system for providing notification of 911 telephone calls, comprising:
- a central office that receives telephone calls and sends an ISUP message for each telephone call to a switch transfer point containing calling party number information and called party number information;
a link monitoring system that monitors an SS7 link on which the ISUP messages are transmitted and determines from the called party number information whether a 911 telephone call has been made, and transmits an indication that the 911 telephone call has been made; and
a notification device that receives the indication that the 911 telephone call has been made sent by the link monitoring system, retrieves a notification list of parties to notify that the 911 telephone call has been made, and provides notification of the 911 telephone call to the parties on the notification list.
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Accused Products
Abstract
Notification of 911 telephone calls is provided to a telephone numbers listed on a pre-provided list of the telephone numbers without intrusion on the existing 911 infrastructure using the out-of-band SS7 signaling infrastructure. A link monitoring system (LMS) monitors SS7 messages to determine whether a 911 telephone call has been made. When the LMS determines that a 911 telephone call has been made, it sends a message containing calling party number information to a notification device. Using the telephone numbers provided on the notification list, the notification device notifies others that the 911 telephone call has been made.
188 Citations
33 Claims
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1. A system for providing notification of 911 telephone calls, comprising:
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a central office that receives telephone calls and sends an ISUP message for each telephone call to a switch transfer point containing calling party number information and called party number information;
a link monitoring system that monitors an SS7 link on which the ISUP messages are transmitted and determines from the called party number information whether a 911 telephone call has been made, and transmits an indication that the 911 telephone call has been made; and
a notification device that receives the indication that the 911 telephone call has been made sent by the link monitoring system, retrieves a notification list of parties to notify that the 911 telephone call has been made, and provides notification of the 911 telephone call to the parties on the notification list. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for providing notification that a 911 telephone call has been made, comprising the steps of:
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monitoring an SS7 link for messages indicating the presence of a 911 call;
sending a message containing calling party number information corresponding to a calling party that placed a 911 telephone call to a notification device, if a 911 telephone call is detected in one of the message;
obtaining a notification list containing one or more parties to be notified of the 911 telephone call; and
notifying each party on the notification list of the 911 telephone call. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for notifying a list of persons contained in a notification list that a 911 telephone call has been placed, comprising the steps of:
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creating the notification list;
storing the notification list in a database;
monitoring an SS7 link for messages indicating the presence of a 911 call;
sending a message containing calling party number information corresponding to a calling party that placed a 911 telephone call to a notification device, if a 911 telephone call is detected in one of the message;
obtaining the notification list from the database using the calling party number information; and
notifying each party on the notification list of the 911 telephone call. - View Dependent Claims (16, 17, 18, 19)
storing the notification list in a database owned by a third party; and
determining whether a subscriber associated with the calling party number information has provided authorization for the calling party information to be provided to third parties prior to performing the notifying step.
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19. The method recited in claim 15, further comprising the step of determining whether the calling party number information corresponds to a person who subscribes to a 911 telephone call notification service.
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20. A system for notifying one or more persons that a 911 telephone call has been placed, comprising:
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means for monitoring an SS7 link for messages indicating the presence of a 911 call;
means for sending a message containing calling party number information corresponding to a calling party that placed a 911 telephone call to a notification device, if a 911 telephone call is detected in one of the message;
means for obtaining a notification list containing one or more parties to be notified of the 911 telephone call; and
means for notifying each party on the notification list of the 911 telephone call. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A system for providing notification of 911 telephone calls, comprising:
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a link monitoring system that monitors an SS7 link on which ISUP messages are transmitted and determines from called party number information contained in the ISUP messages whether a 911 telephone call has been made, and transmits an indication that the 911 telephone call has been made; and
a notification device that receives the indication that the 911 telephone call has been made sent by the link monitoring system, retrieves a notification list of parties to notify that the 911 telephone call has been made, and provides notification of the 911 telephone call to the parties on the notification list. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification