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Method, equipment and system for implementing SIP (Session Initiation Protocol) calling

A device and calling party technology, applied in the field of communication, can solve the problems of reduced SIP call reliability, unable to complete SIP calls, unable to convert media IP address information, etc., to achieve the effect of improving reliability

Inactive Publication Date: 2012-07-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the SIP call process, because the NAT device can only convert the signaling IP address information in the message header of the SIP message, but cannot convert the media IP address information in the message body of the SIP message, the calling party Before the media packet of the device reaches the SBC, the media packet of the called device will not be sent to the calling device through the SBC, and the SIP call cannot be completed, which reduces the reliability of the SIP call.

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  • Method, equipment and system for implementing SIP (Session Initiation Protocol) calling
  • Method, equipment and system for implementing SIP (Session Initiation Protocol) calling
  • Method, equipment and system for implementing SIP (Session Initiation Protocol) calling

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0034] figure 1 A schematic flow diagram of a method for implementing a SIP call provided by an embodiment of the present invention is applied to a scenario where a calling party device traverses a NAT device to perform a SIP call, such as figure 1 As shown, the method may include:

[0035] 101. During the SIP call establishment process, the SBC...

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Abstract

The invention provides a method, equipment and a system for implementing SIP (Session Initiation Protocol) calling, so as to solve the problem that in the prior art, in the SIP calling process, NAT (Network Address Translator) equipment can only convert signaling IP (Internet Protocol) address information in a message header of an SIP message and cannot convert media IP address information in the message header of the SIP message, so that before a media message of calling party equipment does not arrive at an SBC (Single Board Computer), a media message of called party equipment cannot be sent to the calling party equipment by the SBC. Due to the adoption of the technical scheme provided by the embodiment of the invention, the SIP calling can be successfully completed, so that the reliability of the SIP calling can be effectively improved.

Description

technical field [0001] The present invention relates to communication technology, and in particular to a method, device and system for implementing a session initiation protocol (Session Initiation Protocol, SIP for short) call. Background technique [0002] In an Internet Protocol (Internet Protocol, referred to as IP) multimedia subsystem (IP Multimedia Subsystem, referred to as IMS) network, by deploying a session border controller (session border controller, referred to as SBC) at the border of the IMS network, topology hiding can be completed, that is, docking The network access side hides the address information of the core network side, and hides the address information of the access network side from the core network side. In order to solve the shortage of legal IP addresses, the terminal can access the IMS network through a Network Address Translation (NAT) device, and the NAT device converts one set of IP address information of the terminal to another set of IP add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04L29/12
Inventor 沈杭东
Owner HUAWEI TECH CO LTD