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Call back implementing method and system

An implementation method and terminal technology, applied in wireless networks, automatic switching offices, telephone communications, etc., can solve the problem that calling users cannot initiate calls, and achieve the effects of avoiding unreasonable billing, easy implementation, and reasonable billing

Active Publication Date: 2009-07-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention is made in consideration of the problem that the calling user cannot initiate a call due to the different protocols adopted by different networks in the related art. Therefore, the main purpose of the present invention is to provide a method and system for implementing call back

Method used

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  • Call back implementing method and system

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Experimental program
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Embodiment Construction

[0032] Functional Overview

[0033] Aiming at the problems in the related art that the calling terminal cannot initiate a call as the calling terminal when it is roaming (differences exist between the protocols adopted by the roaming place and the home place, for example, international roaming), and the call charging is unreasonable, the present invention proposes a In the Global System for Mobile communication (GSM for short) network, an international roaming user triggers a service control point (Service Control Point) by sending an Unstructured Supplementary Service Data (USSD for short) message. , the callback service on the SCP), so as to achieve the purpose of initiating a call to the called party and talking with the called party under the service control.

[0034] In the solution of the present invention, the USSD message (carrying the number of the called terminal) is initiated by the terminal, sent to the SCP via the roaming network and the HLR, and then the SCP send...

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PUM

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Abstract

The invention discloses a realization method and a system for callback; wherein the method comprises: after a first terminal triggers Unstructured Supplementary Services Data service (USSD), a core network of the roaming domain of the first terminal routes the USSD request message sent by the first terminal to a service control point of the home domain through a home position register of the home domain of the first terminal and then triggers the callback service of the service control point; wherein the USSD request message carries the number of a second terminal; the service control point sends scheduled message to the service control point to inform a service switching point to call; the service switching point calls the first terminal and the second terminal to realize the conversation of the first terminal and the second terminal. The adoption of the invention has the advantages of completing the call under service control when the user roams, ensuring more reasonable charging, and avoiding the problems of unreasonable charging and undetermined rate selection mode of the related technology.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a callback implementation method and system. Background technique [0002] With the development of communication technology and the interconnection of international communication networks, mobile phones can roam to more and more countries for use, thereby providing convenience for people's daily life and communication when traveling. [0003] However, the communication tariff standards in different countries are not the same, and there are even large differences. Therefore, when performing international roaming (especially roaming from a country with a low tariff standard to a country with a high tariff standard), it will be difficult to calculate the call fee. And it may be that the roaming user initiates a call that is too expensive due to the high tariff standard of the roaming place. [0004] On the other hand, due to differences in the protocols of mobile comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/02H04W48/20
CPCH04M3/42195H04M2203/652H04M2215/7442H04M15/00H04M2215/0184H04M2215/2026H04W4/24H04M3/42382H04W4/16H04M15/8038H04M15/8083H04M2207/18
Inventor 周旭强秦延涛孙祥新
Owner ZTE CORP
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