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Application server by-passing method and service type call session control functional equipment

A technology for call session control and application server, applied in electrical components, connection management, transmission systems, etc., can solve problems affecting communication security, abnormal signaling connection, service failure, etc., to ensure communication security and reduce large-scale interruptions. effect of possibility

Active Publication Date: 2010-11-24
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 3. The S-CSCF registered by the calling user ends the call, and the call fails
[0015] 6. The signaling connection between the S-CSCF registered by the called user and the AS is abnormal, and the S-CSCF fails to trigger the service;
[0016] 7. The S-CSCF registered by the called user ends the call, and the call fails
[0017] From the above two examples, it can be seen that once the signaling connection between the S-CSCF and the AS is abnormal, the service will fail and the call will end, which will inevitably bring bad experience to the user
In addition, in the IMS system, all basic conversations of all users as calling and calling parties must be sent to the supplementary service application platform (PES / PSS AS) to trigger supplementary services. If the S-CSCF and PES / PSS AS are interrupted, it may even cause All users cannot call in or out, causing large-scale communication security incidents and seriously affecting communication security

Method used

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  • Application server by-passing method and service type call session control functional equipment
  • Application server by-passing method and service type call session control functional equipment
  • Application server by-passing method and service type call session control functional equipment

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Embodiment Construction

[0058] The technical solution of the present invention will be further described in detail below through the drawings and embodiments.

[0059] Such as image 3 Shown is a schematic flowchart of an embodiment of the AS bypass method of the present invention. In this embodiment, the AS bypass process includes:

[0060] Step 101: The S-CSCF device is receiving a call request;

[0061] Step 102: Detect communication signaling with the AS in the AS list, and determine whether the service of the AS is interrupted;

[0062] Step 103: If it is judged that the service of the AS is interrupted, it is determined that the AS is a faulty AS, and the service triggering and subsequent call processing of ASs other than the faulty AS in the AS list are continued to be completed according to the IFC.

[0063] In this embodiment, the S-CSCF device judges whether the service of the AS is interrupted before triggering the service of the AS related to the user, so that it does not send the call request to ...

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Abstract

The invention relates to an application server by-passing method, which comprises: when service type call session control functional equipment receives a call request, detecting a signaling used for communication between the service type call session control functional equipment and an application servers in an application server list, and determining if the service of the application server is interrupted; if service of the application service is interrupted, determining the application server as a fault application server; and according an initial filtration rule, continuing to complete the service triggering and subsequent call processing of application servers excluding the fault application server in the application server list. The invention also relates to the service type call session control functional equipment. In the invention, through a by-pass AS mode, that the call of a user cannot be interrupted due to the fault in a certain AS is ensured. In case of interruption between an S-CSCF and a PES / PSS AS, the communication safety of the user can be guaranteed to a maximum degree by by-pass operation, so the possibility for the large-area interruption of an IMS service is lowered greatly.

Description

Technical field [0001] The invention relates to IP Multimedia Subsystem (IMS for short) network technology, in particular to a method for implementing application server (AS) bypass in an IMS network and a service-type call session control function (Serving Call Session Control Function, S-CSCF for short) equipment. Background technique [0002] With the advantages and gradual improvement of IMS technology, it has been generally recognized by operators and has been widely used in the next-generation network architecture of operators' business integration and transformation strategies. AS is a functional entity built on the IMS network, which makes full use of the various functions provided by the IMS network to provide users with supplementary services and value-added multimedia services. [0003] When an IMS user is a calling or called party, the S-CSCF registered by the user needs to trigger the service to the corresponding AS according to the user's initial filter criteria (Ini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W60/00H04W76/00H04W80/10H04L29/06
Inventor 马金兰李力卡
Owner CHINA TELECOM CORP LTD
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