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Authentication method and device for PBX accessing Internet Protocol Multimedia Subsystem network

A technology of multimedia subsystems and switches, applied in transmission systems, security devices, electrical components, etc., can solve the problem of PBX access to IMS network, stolen calls, etc.

Active Publication Date: 2016-12-21
CHINA MOBILE GROUP ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention is to overcome the defect that the PBX accesses the IMS network in the prior art and has the defect of being stolen, and according to one aspect of the present invention, an authentication method for PBX accessing the IMS network is proposed

Method used

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  • Authentication method and device for PBX accessing Internet Protocol Multimedia Subsystem network
  • Authentication method and device for PBX accessing Internet Protocol Multimedia Subsystem network
  • Authentication method and device for PBX accessing Internet Protocol Multimedia Subsystem network

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Embodiment Construction

[0052] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0053] Establish a virtual trunk in MGCF, the naming rule is: ZJ-XX-TRUNK-xxxxxx, where XX is the region name, such as HZ corresponds to Hangzhou, JIH corresponds to Jinhua, etc., xxxxxx is a 6-digit number, from 000000-999999, a virtual trunk Corresponding to the E1 port required by a TDM-PBX, that is, one or more E1 physical resources on the MGW (Media Gateway). When a user initiates a call, the TDM-PBX sends an IAM message to the MGCF, and the MGCF constructs a caller INVITE message, wherein the value of the P-Charging-Vector field in the INVITE message is set to ZJ-XX-TRUNK-xxxxxx.

[0054] A Trunk-Info field is extended on the response message returned by the HSS, which identifies the correspondence between the us...

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Abstract

The invention discloses an authentication method and device for PBX accessing an IMS network, wherein the method comprises: ICSCF receives a caller INVITE message carrying virtual trunk information generated by MGCF; Inquiry request from SCSCF; ICSCF receives the corresponding relationship information between the calling user and its trunk returned by the HSS; ICSCF determines whether the calling user belongs to the SCSCF according to the consistency between the virtual trunk information and the corresponding relationship information between the calling user and its trunk continue. The authentication method and device for PBX access to the IMS network of the present invention, through the comparison of the MGCF-Trunk field and the HSS-Trunk field, realizes the authentication of the TDM-PBX users connected to the MGCF, and avoids the forged caller to dial Phone calls pose a risk of number theft.

Description

technical field [0001] The present invention relates to the technical field of IMS network in the field of communication, in particular to an authentication method and device for PBX accessing Internet Protocol Multimedia Subsystem IMS network. Background technique [0002] Time Division Mulipex-Private Branch eXchange (TDM-PBX for short) is connected to the Internet Protocol Multimedia Subsystem (IP Multimedia Subsystem, IMS for short) and has Access Gateway Control Function (AGCF for short) and There are two solutions for the Media Gateway Control Function (MGCF for short). [0003] The AGCF solution is that the TDM-PBX accesses the AGCF through No. 7 or R2 signaling. The user opens an account in the Home Subscriber Server (HSS) as a registered user, and the AGCF binds the user's trunk interface and user number. The AGCF initiates the user's proxy registration, and the calling and calling process of the user is the same as that of the Session Initiation Protocol (SIP) use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W12/06
Inventor 茅宏业李佐辉
Owner CHINA MOBILE GROUP ZHEJIANG
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