Method, device and system for processing urgent call service
A technology of emergency call and processing method, which is applied in the direction of emergency/dangerous communication service, wireless communication service, accounting/billing service, etc., and can solve the problems of restricting the applicable area of emergency call service and UE being unable to continue normal emergency call service, etc. To achieve the effect of expanding the applicable area
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] In a mobile communication system, when UE users use data services, they usually use an Access Point Name (APN) mechanism to identify the external network that the UE wants to access (that is, the service that the UE wants to perform) , at this time, the access point device uses APN resolution to control the routing of the UE. In the communication system based on IMS network, APN is generally deployed on the gateway device of IP-CAN or logically connecte...
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