Realization method for supplementary service and terminal

Abstract

The embodiment of the invention discloses a realization method for a supplementary service. With the method, a success rate of supplementary service utilization by a user can be improved and the user experience effect can be enhanced. The method comprises: a terminal initiates a supplementary service request message; the terminal inquires a current IP multi-media subsystem (IMS) service state according to the supplementary service request message; if the IMS service state corresponds to a first threshold value, the terminal executes a supplementary service corresponding to the supplementary service request message by a packet switching (PS) domain; and if the IMS service state corresponds to a second threshold value, the terminal executes a supplementary service corresponding to the supplementary service request message by a circuit switching (CS) domain. In addition, the embodiment of the invention also provides a terminal. The supplementary service can be used normally with the two kinds of channels of the PS domain and the CS domain; and thus the success rate of the supplementary service usage is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a supplementary service implementation method and a terminal. Background technique [0002] With the development of communication technology, the existing communication network has gradually developed into a more adaptable and cost-effective full Internet Protocol IP network. Network operators are implementing the IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) network as a public core network. , to provide multimedia services to IMS users through the IP network. [0003] VoLTE (Voice over LTE) is an IMS-based voice service. The supplementary services in the IMS network environment include call forwarding unconditional (CFU), call forwarding on busy (CFB), call forwarding on no answer (CFNRy), call hold ( HOLD), call waiting (CW), multi-party conversation (MPTY), etc. With the use of mobile VoLTE terminals, these supplementary services will be used more and more in VoLTE...

AI Technical Summary

Problems solved by technology

For these two situations, when the VoLTE terminal needs to use the supplementary service, the following problems will arise: When the VoLTE terminal opens the supplementary service configuration interface, performs service query and activation, the interface often displays "The network is busy, please try again later" , causing the supplementary services to be unavailable, or even stuck on the interface, which seriously affects the user experience

The reason is that when a VoLTE terminal uses supplementary services, it will first query and set through the UT interface of the PS domain, but the actual conditions of the VoLTE terminal used by the user do not support the two situations described above. PS domain channel, it will cause VoLTE terminals to fail to use supplementary services normally

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