System and method for notification of 911 telephone calls using a link monitoring system
AssigneeBellSouth Intellectual Property Corporation
InventorsSunil H. Contractor, Hong Nguyen
Life of this patent
Estimating the term…
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.
Claims33
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.
A method for providing notification that a 911 telephone call has been made, comprising the steps of:
- 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.
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:
- 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.
A system for notifying one or more persons that a 911 telephone call has been placed, comprising:
- 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.
A system for providing notification of 911 telephone calls, comprising:
- 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.
Dependencies are inferred from the claim text.