Method, system and terminal for triggering unstructured supplementary service data (USSD) on basis of internet protocol (IP) multimedia subsystem (IMS)
A service and terminal technology, applied in the direction of message/mailbox/notification, etc., can solve the problem that USSD service cannot be triggered correctly, and achieve the effect of simplifying service triggering and reducing the number of configurations
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[0065] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0066] image 3 It is a schematic structural diagram of a USSD service triggering system in Embodiment 1 of the present invention. like image 3 As shown, the USSD service trigger system includes an HSS server, a terminal, an S-CSCF and an access server AS.
[0067] The HSS server sets the Request-URI parameter in the service point trigger SPT that triggers the filter criterion iFC as the service number of the USSD service access code, and sends the trigger filter criterion iFC to the S-CSCF, wherein the service point trigger in the HSS server SPTs are sorted by priority.
[0068] The terminal sends a service request message to the S-CSCF, and distinguishes the U...
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