Method and Apparatus for Routing Emergency Calls in a VoIP System
First Claim
1. A method of routing emergency calls in a Voice-over-IP (VoIP) system, comprising:
- receiving incoming emergency calls originated from dual-mode mobile devices connected to the VoIP system through wireless access points (WAPs);
determining locations associated with the incoming emergency calls; and
redirecting callers to an alternate carrier if their location cannot be determined by the VoIP system.
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Accused Products
Abstract
Methods and apparatuses for routing emergency calls originated from mobile wireless devices in a Voice-over-IP (VoIP) system are described herein. In one or more embodiments, emergency calls are routed in a VoIP system by receiving incoming emergency calls originated from dual-mode mobile devices connected to the VoIP system through wireless access points (WAPs), determining locations associated with the incoming emergency calls, and redirecting callers to a cellular network. In other embodiments, emergency calls are routed in a VoIP system by mapping WAP identifiers to emergency answering points (EAPs), receiving an incoming emergency call from an originating WAP, identifying an EAP relating to the originating WAP, and directing the emergency call to the identified EAP.
130 Citations
21 Claims
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1. A method of routing emergency calls in a Voice-over-IP (VoIP) system, comprising:
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receiving incoming emergency calls originated from dual-mode mobile devices connected to the VoIP system through wireless access points (WAPs); determining locations associated with the incoming emergency calls; and redirecting callers to an alternate carrier if their location cannot be determined by the VoIP system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. A voice-over-IP (VoIP) system comprising a call processing server configured to receive incoming emergency calls originated from dual-mode mobile devices connected to the VoIP system through wireless access points (WAPs), to determine locations associated with the incoming emergency calls, and to redirect callers to an alternate carrier.
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19. A dual-mode mobile communication device, comprising:
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a cellular radio configured to connect the dual-mode mobile communication device to a cellular network; a wireless broadband radio configured to connect the dual-mode mobile communication device to a wireless broadband network; and a communication processor configured to initiate an emergency call to a voice-over-IP (VoIP) system via the wireless broadband network and to place a new emergency call to the cellular network responsive to a call redirection instruction. - View Dependent Claims (20, 21)
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Specification