A method and system for realizing international roaming callback service

Abstract

The invention discloses a method and system for realizing international roaming callback service. The USSD server queries the user authority database to judge whether the calling terminal has the authority to use the international roaming callback service; when the calling terminal has no authority, the USSD server interrupts This international roaming call-back service; when the calling terminal has the authority, the USSD server calls back the calling terminal and calls the called terminal; wherein, the USSD service authority server transmits to the USSD server through the data interface with the USSD server International roaming user rights data. The method and system of the present invention have strong operability. Without changing the characteristics of the existing business process and networking structure, etc., it solves the requirement that the calling user's authority can be inquired, and reduces the waiting time for the calling user to return. The problem of long dial-up delay improves customer perception, reduces the overhead of circuits and signaling links in the system, and reduces costs.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and system for realizing international roaming callback service. Background technique [0002] International roaming means that mobile phone users can continue to use mobile phones to communicate on other networks in other countries and regions when they leave their home network. Many operators have launched this service, such as China Telecom. At present, China Telecom has dual-mode card users. When the mobile phone of the dual-mode card user is under the CDMA network of China Telecom, the mobile phone will automatically register to the CDMA network. The mobile phone will be registered to the GSM network, but the user number (China Telecom user number) remains unchanged, and the user's main home network is CDMA. Therefore, when the dual-mode card user's mobile phone is under the GSM network of China Telecom's cooperative operator, the service process of us...

AI Technical Summary

Problems solved by technology

[0016] Therefore, if both the calling user and the called user are China Telecom CtoG international roaming users, and roam to the GSM network, when using the international roaming callback (**133) service, the calling MSC and the called MSC are both managed by the USSD The platform is connected to the international circuit through the domestic side of China Telecom. Compared with the original process, the circuit and signaling overhead are relatively large, and, under the existing solution, the USSD service platform has certain CDMA signaling interaction capabilities. There are certain difficulties in implementing network transformation

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