Emergency call support for VoLTE roaming within S8 home routing architecture
First Claim
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1. A method comprising:
- receiving, by a network device of a first wireless network, an attach request from a wireless device to attach to the first wireless network;
obtaining, by the network device, a mobile telephone number of the wireless device from a second wireless network of the wireless device, based on the receiving of the attach request, wherein the second wireless network of the wireless device is communicatively coupled to the first wireless network;
receiving, by the network device, subsequent to an attachment of the wireless device to the first wireless network, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a first Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the first wireless network, and the first IMS network is not communicatively coupled to a second IMS network of the wireless device; and
providing, by the network device, during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP), using the first IMS network that supports the unauthenticated VOLTE emergency call.
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Abstract
A method, a device, and a non-transitory storage medium provide an emergency call support service in which a network device of a visited network obtains user profile data of a wireless device from a home network of the wireless device, and provides the user profile data to a location server of the visited network. The emergency call support service allows an emergency call, when initiated by a roaming subscriber of the wireless device via the visited network, to include the user profile data and be provided to a public safety access point.
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Citations
20 Claims
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1. A method comprising:
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receiving, by a network device of a first wireless network, an attach request from a wireless device to attach to the first wireless network; obtaining, by the network device, a mobile telephone number of the wireless device from a second wireless network of the wireless device, based on the receiving of the attach request, wherein the second wireless network of the wireless device is communicatively coupled to the first wireless network; receiving, by the network device, subsequent to an attachment of the wireless device to the first wireless network, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a first Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the first wireless network, and the first IMS network is not communicatively coupled to a second IMS network of the wireless device; and providing, by the network device, during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP), using the first IMS network that supports the unauthenticated VOLTE emergency call. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A network, wherein the network comprises:
a first network device of a first wireless network comprising; a first communication interface; a first memory, wherein the first memory stores first instructions; and a first processor, wherein the first processor executes the first instructions to; receive, via the first communication interface, an attach request from a wireless device to attach to the first network device; obtain, via the first communication interface, a mobile telephone number of the wireless device from a second network device of a second wireless network of the wireless device, based on the attach request, wherein the second wireless network of the wireless device is communicatively coupled to the first wireless network; receive, via the first communication interface, subsequent to an attachment of the wireless device to the first wireless network, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a first Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the first wireless network, and the first IMS network is not communicatively coupled to a second IMS network of the wireless device; and provide during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP), using the first IMS network that supports the unauthenticated VOLTE emergency call. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A non-transitory storage medium storing instructions executable by a processor of a device of a first wireless network to:
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receive an attach request from a wireless device to attach to the device of the first wireless network; obtain a mobile telephone number of the wireless device from a second wireless network of the wireless device, based on the attach request, wherein the second wireless network of the wireless device is communicatively coupled to the first wireless network; receive subsequent to an attachment of the wireless device to the first wireless network, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a first Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the first wireless network, and the first IMS network is not communicatively coupled to a second IMS network of the wireless device; and provide during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP), using the first IMS network that supports the unauthenticated VOLTE emergency call. - View Dependent Claims (18, 19, 20)
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Specification