Calling method and apparatus, terminal and core network system

Abstract

The embodiment of the invention discloses a calling method and a paging method. The calling method comprises the following steps: determining a target core network system in a plurality of core network systems to which a calling number of a calling request belongs; if a first core network system is determined, initiating the calling request to the first core network system; and if a second core network system is determined, initiating the calling request to the second core network system. The paging method comprises the following steps: identifying a called number of the received calling request; determining a target core network system in a plurality of core network systems to which a user number corresponding to the called number belongs; if the first core network system is determined, sending a paging message of the corresponding calling request to a user terminal corresponding to the user number; and if the second core network system is determined, sending the calling request to the second core network system, so that the second core network system sends the paging message of the corresponding calling request to the user terminal corresponding to the user number. In addition, the embodiment of the invention further discloses a calling apparatus, a paging apparatus, a terminal and a core network system.

Description

Technical field [0001] The embodiments of the present invention relate to the field of wireless communication, and in particular to a calling method, device, terminal, and core network system. Background technique [0002] In the field of wireless communication, as a traditional user terminal (English: User Equipment, UE for short), a dual-mode dual-card terminal can establish a call through the core network systems of two different operators. Among them, the core network system of each operator provides a different user number for the dual-mode dual-card terminal, and the two different user numbers are used to identify two different users provided by the two core network systems. When the dual-mode dual-card terminal needs to make a call through the core network system of a certain operator, the dual-mode dual-card terminal uses the user number provided by the core network system. It can be seen that the same user terminal is actually configured with two different users, and th...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a calling method, device, terminal and core network system to solve the problem that in the prior art, the same user terminal needs to use different user numbers to establish a call through different core network systems. Technical problems that prevent certain ways of calling

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