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Recursive query method, device and system for enum/dns

A query method and DNS server technology, applied in ENUM/DNS recursive query, device and system fields, capable of solving problems such as query failure, call failure, and inconsistent query methods

Active Publication Date: 2017-10-17
CHINA MOBILE GROUP JILIN BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Embodiments of the present invention provide an ENUM / DNS recursive query method, device and system to solve the existing ENUM / DNS recursive query on the calling side and the secondary ENUM / DNS on the called side Inconsistent query methods set by the server lead to query failure and call failure

Method used

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  • Recursive query method, device and system for enum/dns
  • Recursive query method, device and system for enum/dns
  • Recursive query method, device and system for enum/dns

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Embodiment Construction

[0040] Embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0041] Aiming at the problem that in the existing ENUM / DNS recursive query, the inconsistency between the query modes set by the ENUM / DNS on the calling side and the secondary ENUM / DNS server on the called side leads to query failure and call failure, the embodiment of the present invention An ENUM / DNS recursive query method, device and system are provided to solve this problem.

[0042] In the technical solution provided by the embodiment of the present invention, in the case that the setting query modes of the calling side ENUM / DNS and the secondary ENUM / DNS server of the called side are inconsistent, the secondary ENUM / DNS server of the called side passes Negotiate to obtain the result ...

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Abstract

The invention discloses an ENUM / DNS recursive query method, device and system to solve the problem of query failure due to inconsistent query modes set by the secondary ENUM / DNS server on the calling side and the secondary ENUM / DNS server on the called side. After the secondary ENUM / DNS server on the called side receives the query message from the secondary ENUM / DNS server on the calling side forwarded by the primary ENUM / DNS server, it determines the query content expressed in the query condition format in the query message If it is inconsistent with the query conditions configured by the second-level ENUM / DNS server on the called side, send request feedback to the second-level ENUM / DNS server on the calling side through the first-level ENUM / DNS server. The query content expressed by the configured query conditions matches the request, and the query is performed based on the fed back query content.

Description

technical field [0001] The present invention relates to the technical field of Telephone Number Mapping Group (ENUM, Telephone Number Mapping Group) / Domain Name System (Domain Name System) of Internet (IP, Internet Protocol) Multimedia Subsystem (IMS, IP Multimedia Subsystem) network, specifically, relates to a An ENUM / DNS recursive query method, device and system. Background technique [0002] At present, in the IMS network of mobile communication, when performing domain name query for the ENUM of the mobile phone number, there are usually the following three methods: [0003] The first method, address query (A query): Obtain the IP address of the domain name according to the domain name, and the IMS network element in the area where the ENUM / DNS is located can provide domain name resolution. For example, the client (such as Serving Call Session Control Function (S-CSCF, Serving Call Session Control Function)) initiates an A query to the ENUM / DNS server, assuming that the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCH04L61/4511
Inventor 於少菲杨育柏孙萌刘哲刘冰李硕张东林
Owner CHINA MOBILE GROUP JILIN BRANCH
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