Call routing method and system of number portability businesses as well as network element equipment

Abstract

The invention provides a call routing method and system of number portability businesses as well as network element equipment. The call routing method comprises the following steps of: receiving a roaming number search request of a first IMSI (International Mobile Subscriber Identity) number assigned by a first network which originally belongs to a terminal with signed number portability businesses; according to pre-stored first mapping information, searching a user number of the terminal corresponding to the first IMSI number of the terminal, and a second IMSI number assigned by a second network which belongs to the terminal at present; verifying the terminal according to the searched second IMSI number of the terminal, and determining call routing information corresponding to the terminal according to pre-stored second mapping information when the verification is successful; and sending a roaming number search response to the first network, wherein the response comprises the determined call routing information corresponding to the terminal and the user number of the terminal. According to the call routing method provided by the invention, in the condition that the terminal is received from the first network which originally belongs to the terminal with the signed number portability businesses as a called call request, the realized technical scheme is provided for the call routing of the terminal.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a call routing method and system for a number portability transfer service, and a network element device. Background technique [0002] Long Term Evolution (referred to as Long Term Evolution, referred to as LTE) is a goal of future mobile communication network development. In the long run, LTE and its subsequent development of new wireless technologies in mobile communication networks may eventually replace the existing Global System for Mobile communications (GSM for short) and Wideband Code Division Multiple Access (WCDMA) Access, referred to as WCDMA) and other networks, but new wireless technologies such as LTE must go through a long-term process from standard maturity to large-scale commercial use, and then gradually replace existing networks. During the development of mobile communication networks and the introduction of LTE, LTE will inevitably coexist wit...

AI Technical Summary

Problems solved by technology

[0008] However, in the voice service, since the user uses the same user number in the independent network LTE and GSM / WCDMA, the original GSM / WCDMA receives a called request from a user who has signed a number portability service, that is, a class B user. When the original GSM / WCDMA realizes the called routing of the user, there is no technical solution in the prior art

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