System and method to provide 911 access in voice over internet protocol systems without compromising network security
First Claim
Patent Images
1. A method of providing emergency access in a communication network, wherein the communication network includes one or more communication restrictions, the method comprising:
- at a first node;
detecting an emergency call VoIP signal prior to normal IP security; and
sending a request for an emergency call connection via an IP transport layer, said transport layer including communication restrictions; and
at a second node;
receiving said request;
establishing a limited emergency call connection with said first node via said IP transport layer, said limited connection bypassing said normal IP security including said communication restrictions;
allowing transmission of said emergency call VoIP signal from said first node to said second node, andblocking all other communications within said limited connection.
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Abstract
A system and method to provide emergency call access in Voice over Internet Protocol (VoIP) systems without compromising network security. The system and method enables VoIP emergency signal detection at a user device, and transmission of the VoIP emergency signal from the user node to a network server node through the use of data encapsulation and decapsulation (or “tunneling”), allowing VoIP data routing via an IP transport layer regardless of access or network security restrictions.
130 Citations
16 Claims
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1. A method of providing emergency access in a communication network, wherein the communication network includes one or more communication restrictions, the method comprising:
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at a first node; detecting an emergency call VoIP signal prior to normal IP security; and sending a request for an emergency call connection via an IP transport layer, said transport layer including communication restrictions; and at a second node; receiving said request; establishing a limited emergency call connection with said first node via said IP transport layer, said limited connection bypassing said normal IP security including said communication restrictions; allowing transmission of said emergency call VoIP signal from said first node to said second node, and blocking all other communications within said limited connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for allowing emergency call access in a communication network, wherein said communication includes one or more communication restrictions, the system, comprising:
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a user node comprising; a user node software application for initiating an emergency call using a VoIP application prior to normal IP security, a local network layer coupled to the user node software application for sending a request for an emergency call connection to a network server node via an IP transport layer, said transport layer including communication restrictions between said user node and said network server node; and said network server node comprising; a means for receiving said request, and in response, establishing a limited emergency call connection between said user node and said network server node via said IP transport layer, said limited connection bypassing said normal IP security including said communication restrictions, allowing transmission of said emergency call VoIP signal while blocking all other communications within said limited connection from said user node to said network server node. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification