A calling method and device

Abstract

The invention provides a calling method and equipment. Calling can be further initiated through a user identifier generated by a global mobile equipment identifier in user equipment under the condition that neither an intelligent card of a user supporting IP multimedia service identity module application nor a general signing identifier module is available through the user identifier for calling derived and generated by the global mobile equipment identifier in the user equipment. The method comprises the following steps: reading to obtain the global mobile equipment identifier in the user equipment; using the global mobile equipment identifier as a user name in a calling user identifier; generating the user identifier for calling by using a predetermined domain name for positioning the user equipment and the user name; sending a calling request with the user identifier to a core network.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a calling method and equipment. Background technique [0002] IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) technology is considered to be the core technology of the next generation network, and it is also the best way to solve the convergence of mobile network and fixed telephone network. Therefore, in addition to supporting the normal registration and calling of users, it must also have the ability of emergency calling. [0003] In the initial stage of IMS, user smart cards that support IP Multimedia Service Identity Module (ISIM) applications are not popular, therefore, users cannot initiate calls to access the network through the IMS-specific user data stored in the ISIM , wherein the IMS-specific user data includes public user identities and private user identities. In the absence of a user smart card that supports the application of the IP multimedi...

AI Technical Summary

Problems solved by technology

However, the USIM card does not exist or the USIM card is faulty, so IMS calls cannot be made

Therefore, when an emergency occurs in this situation, although the user can still perform emergency attachment to the all-IP packet core network (Evolved Packet Core, EPC) through the global mobile equipment identity (International Mobile Station Equipment Identity, IMEI), but It is still impossible to make emergency calls to the IMS network, so there is no IMS service available

[0004] To sum up, in the absence of a user smart card that supports the application of the IP multimedia service identity module and a universal subscription identity module, the user equipment in the prior art cannot initiate a call, and there is no available call method at this stage

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