Systems and methods of supporting emergency communications
First Claim
Patent Images
1. A method, comprising:
- receiving, by a mobile station processor, an address for a call to a destination;
determining, by the mobile station processor, that the address is an emergency call address;
determining, by the mobile station processor, that the call will be supported using Voice over Internet Protocol (VoIP);
instructing, by the mobile station processor, a wireless radio to transmit a call setup request directed to the emergency call address, the call setup request including an indication that the emergency call is from a mobile station employing VoIP,wherein the mobile station processor includes a Medium Access Control (MAC) address of the wireless radio, a type of the wireless radio that will transmit the call setup request and a tower identification in the call setup request.
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Abstract
Systems and methods for supporting E911 for VoIP mobile communications are provided. A mobile station formats a call setup message by including particular information in a header portion of the call setup message that is used by the wireless network to select an appropriate PSAP and route the call to the appropriate PSAP.
115 Citations
24 Claims
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1. A method, comprising:
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receiving, by a mobile station processor, an address for a call to a destination; determining, by the mobile station processor, that the address is an emergency call address; determining, by the mobile station processor, that the call will be supported using Voice over Internet Protocol (VoIP); instructing, by the mobile station processor, a wireless radio to transmit a call setup request directed to the emergency call address, the call setup request including an indication that the emergency call is from a mobile station employing VoIP, wherein the mobile station processor includes a Medium Access Control (MAC) address of the wireless radio, a type of the wireless radio that will transmit the call setup request and a tower identification in the call setup request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mobile station, comprising:
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a wireless radio; a memory; and a processor, coupled between the wireless radio and the memory, wherein the processor includes; logic to determine whether a received address is an emergency call address; and logic to determine that the call will be supported using Voice over Internet Protocol (VoIP); logic to format a call setup request directed to the emergency call address by including an indication that the emergency call is from a mobile station employing VoIP, wherein the formatted call setup request is transmitted to a wireless network using the wireless radio, and wherein the logic to format includes a Medium Access Control (MAC) address of the wireless radio, a type of the wireless radio that will transmit the call setup request and a tower identification in the call setup request. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification