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Method for implementing color bell service interaction of PSTN user and IMS user

A technology of user and color ring, applied in subscriber special service, data exchange network, digital transmission system, etc., can solve problems such as being unable to listen to called user color ring

Active Publication Date: 2008-02-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a method for realizing the interactive ring tone service between a PSTN user and an IMS user, so as to overcome the problem that the calling user in the PSTN domain and the called user in the IMS domain cannot listen to the color ring tone signed by the called user. question

Method used

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  • Method for implementing color bell service interaction of PSTN user and IMS user
  • Method for implementing color bell service interaction of PSTN user and IMS user

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Embodiment Construction

[0052] The invention enables a PSTN user to call an IMS CRBT user, and the calling user can hear the multimedia CRBT set by the CRBT user, which mainly includes the following steps:

[0053] Step A, the calling user initiates a call;

[0054] Step B, according to the number analysis, the call is connected to the MGCF, and the MGCF initiates a call to the called user, and then connects to the core network;

[0055] Step C, the core network determines that the called user has subscribed to the CRBT service, and establishes a connection with the CRBT service server while initiating a call to the called user;

[0056] Step D, the CRBT service server triggers the CRBT service, and executes the CRBT media negotiation process;

[0057] Step E, the calling user listens to the played multimedia ring tone.

[0058] Said step B further comprises:

[0059] B1, MGCF receives ISUP signaling IAM message;

[0060] B2. The MGCF initiates a call to the IMS domain, and sends a SIP signaling ...

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Abstract

The present inventiondiscloses a method for completing the CRBT intercommunication of the PSTN user and the IMS user. The method contains the following steps: the PSTN user calls and sends the message which has the user information of the call party and the called party to the MGCF; the MGCF calls the IMS user and sends the call request information of the MGCF media to the core network; the core network calls the IMS user and builds the connection with the CRBT server after judging that the IMS user has ordered the CRBT; the CRBT server triggers the CRBT and executes the media negotiation process of the MGCF and the media server and the IMS user; and then the PSTN user listens to the played RBT. With the invention, the PSTN user can listen to the RBT ordered by the called party when calls the IMS user, thereby satisfying practical demand of the user and providing better service to the user.

Description

technical field [0001] The invention relates to telecommunication value-added services, in particular to a method for realizing the interactive ring tone service between PSTN users and IMS users. Background technique [0002] IMS (IP Multimedia Subsystem) is a system based on SIP (Session Initiation Protocol) that integrates data, voice and mobile networks. It is a real-time service on the packet-switched domain of UMTS (Universal Mobile Telecommunications System). The flexible service capability of IP is rooted in the mobile communication system, which greatly enriches the mobile service generation capability. [0003] The CRBT service continues to develop, and it is also well applied in the rapidly developing IMS domain, that is, the multimedia CRBT service. When the calling party calls the called user who subscribes to the multimedia ring back tone service, the calling party can see or hear the multimedia ring back tone set by the called party. The multimedia ring back t...

Claims

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Application Information

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IPC IPC(8): H04L12/58H04L12/66H04Q7/22H04M3/42
Inventor 葛昊周云军王成灿
Owner ZTE CORP
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