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Method for achieving purpose of enabling voice roaming user to serve as called side based on LTE, and business system

A business system and technology for roaming users, applied in the field of implementing VOLTE roaming users to be called, methods and business systems, can solve problems such as increasing investment costs

Inactive Publication Date: 2017-06-23
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the method of implementing VOLTE called route selection by adding an access server to obtain the actual login domain of the called user needs to modify the equipment and system, thus increasing the investment cost

Method used

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  • Method for achieving purpose of enabling voice roaming user to serve as called side based on LTE, and business system
  • Method for achieving purpose of enabling voice roaming user to serve as called side based on LTE, and business system
  • Method for achieving purpose of enabling voice roaming user to serve as called side based on LTE, and business system

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] Combine below figure 1 A method for implementing a VOLTE roaming user as a called party according to an embodiment of the present invention is described.

[0026] figure 1 A schematic flowchart showing an embodiment of a method for realizing a VOLTE roaming user as a called party in the pres...

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Abstract

The invention discloses a method for achieving a purpose of enabling a voice roaming user to serve as a called side based on LTE, and a business system, and relates to the field of network protocol multimedia subsystems. The method comprises the steps that the business system detects the network registration condition of a VOLTE user; the business system judges whether to activate or deactivate an implicit forward shifting service or not according to the network registration condition of the VOLTE user; the business system activates the implicit forward shifting service if the VOLTE user carries out the registration in a G / 3G network, and enables a call to be forwarded to a CS domain from an IMS domain; the business deactivates the implicit forward shifting service if the VOLTE user carries out the registration in an IMS network, and the call is continued directly from the IMS domain. Therefore, the method achieves the path selection of VOLTE called sides in a mode of business supplementation, does not need to reconstruct the equipment and system, and reduces the investment cost.

Description

technical field [0001] The present invention relates to the field of IMS (IP Multimedia Subsystem, network protocol multimedia subsystem), in particular to a method and a service system for realizing VOLTE (Voice Over LTE, voice over LTE) roaming users to be called. Background technique [0002] When a VOLTE user roams to a 2G / 3G network internationally, because the domestic IMS network does not know the roaming status of the VOLTE user, the VOLTE user cannot be called. [0003] The existing implementation method is to obtain the actual login domain of the called user by responding to the intelligent network service request sent by the calling controller through the newly added access server device. When the actual login domain of the called user is the circuit domain, the access server sends the first connection instruction to the calling controller, the first connection instruction carries the original called number, and at the same time performs intelligent network servic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/02H04W8/18
CPCH04W8/02H04W8/18
Inventor 陈强毛安平蔡晟章鹏那晓俊陈尚干
Owner CHINA TELECOM CORP LTD