CN100473092C - A system and method for providing personalized ring back tone service in next generation network - Google Patents

Abstract

A device and method for providing personalized ring back tone service in next generation network, network architecture at least includes softswitch or media gateway controller, media server, access equipment; described softswitch or media gateway controller is provided with its own The database server and the management configuration system are connected with the soft switch or the gateway controller through the LAN mode, and are used to realize the control of the personalized ring back tone business process; the said media server is used to provide a variety of personalized ring back tone recording and playback sounds . The voice channel connection is simple and direct, and does not need to occupy limited relay resources to establish a special voice channel, and can conveniently realize personalized ringback tone recording, reflecting the user's personalization to the greatest extent.

Description

A system and method for providing personalized ring back tone service in next generation network

technical field

The present invention relates to a device and a method for providing telecommunication value-added services in a next generation network (Next Generation Network, NGN), and more specifically, relates to a device and a method for providing personalized ring back tone services in a next generation network.

Background technique

The next-generation network uses softswitches as the control core and packet-switched networks as the transmission network. It is a comprehensive and fully open network platform system that can simultaneously provide multiple services such as voice, data, and multimedia, and is a service-driven network. How to conveniently and flexibly provide more value-added services and new services in the next generation network has become its current mainstream development direction.

The personalized ring back tone service is a service in which the called customer sets the ring back tone of special sound effects (music, song, storyline, character dialogue) for other calling customers who call their own phone number, that is: in a call During the call, before the called customer picks up the phone to answer, what the calling customer hears is no longer the monotonous "beep...beep..." ordinary ring-back prompt, but the customized Personalized ringback tone with special sound effects. For example, the PCT patent "METHOD AND APPARATUSFOR PROVIDING SUBSCRIBER-BASED RINGBACK TONE" (METHOD AND APPARATUSFOR PROVIDING SUBSCRIBER-BASED RINGBACK TONE) whose publication number is WO03071820 realizes the provision of personalized ring back tone service to the called user on the mobile network, This patent utilizes a voice data server to be connected to the called end office through the relay, and then send a special ring back tone to the calling user to replace the traditional ring back tone through the called end office.

However, the personalized ring back tone service has not been provided in the next generation network at present.

Contents of the invention

The purpose of the present invention is to provide a device and method for realizing personalized ring back tone service in the next generation network, which can realize providing personalized ring back tone service to various access terminal users in the next generation network.

The present invention is achieved like this:

A system for providing personalized ring back tone service in the next generation network, the system architecture includes at least a softswitch or a media gateway controller, a media server, and an access device;

It is characterized by:

Described soft switch or media gateway controller are provided with own database server and management configuration system, are connected with soft switch or media gateway controller by LAN mode, are used for realizing the control of personalized ring back tone business process;

The media server is used to provide multiple personalized ring-back tones for recording and playback.

Register and activate the personalized ring back tone service for the called user on the side of the softswitch or media gateway controller, specify the tone number and store it in the database;

The designated sound number is a personalized ring-back tone identifier that has been recorded on the media server.

A method for providing personalized ring back tone service in next generation network, comprising the following steps:

Step 1: After the softswitch or media gateway controller notifies the called user's access device to ring the called user, before sending the traditional ring back tone to the calling user, check whether the service attribute of the called user is registered for personalization ring back tone service;

Second step: if the called user registers and activates the personalized ring back tone service, the softswitch or media gateway controller queries the database to obtain the ring back tone number registered by the user;

Step 3: If the access device can play the recording notification, it does not need to use the media server. If it can only play the basic sound, it needs to use the media server to play the recording notification. The soft switch or media gateway controller requests the media server to prepare the resources for playback;

Step 4: After the media server is successfully prepared, the softswitch or the media gateway controller notifies the calling access device to modify the remote media attribute of the calling user to the resources prepared by the media server;

Step 5: After the modification is successful, the softswitch or the media gateway controller notifies the media server to play the specified recording to the outside; the calling user starts to listen to the personalized ring back tone;

Step 6: After the called user picks up or answers the call, the softswitch or the media gateway controller notifies the media server to stop playing the sound, deletes the corresponding resources on the media server, and notifies the caller’s access device to change the caller’s remote media attribute to For the media attribute of the called user, the media flow between the calling party and the called party is connected, and the conversation is started; if the calling user hangs up during listening to the personalized ring back tone, the softswitch or the media gateway controller notifies the media server to stop playing the tone, and Delete the corresponding resources on the media server.

Register and activate the personalized ring back tone service for the called user on the side of the softswitch or media gateway controller, specify the tone number and store it in the database;

The designated sound number is a personalized ring-back tone identifier that has been recorded on the media server.

Compared with prior art, innovation and advantage of the present invention are:

1. The present invention realizes the personalized ring-back tone service on the next-generation network, and the media server is uniformly controlled by the softswitch or the media gateway controller to send the special ring-back tone directly to the calling party without passing through the called gateway or voice channel. Simple and direct connection;

2. The next-generation network is based on the packet switching network, and does not need to occupy limited relay resources to establish a special voice channel, and the transport layer can afford more users to use this service;

3. The next-generation network is based on a carrier-class packet switching network (IP network or ATM switching network), which can achieve high-bandwidth transmission with guaranteed quality (the bandwidth used by mobile network users is very limited), so it can provide higher quality and longer playback Time audio resources are used as special ringback tones, and the breakthrough of bandwidth limitation will greatly enrich the types of personalized ringback tones.

Description of drawings

Fig. 1 is a schematic diagram of the system structure of an embodiment of the present invention;

Fig. 2 is a flow chart of protocol messages for realizing the method of the present invention.

Detailed ways

The network framework for implementing the system of the present invention includes at least a softswitch or a media gateway controller (Media Gateway Controller, MGC), a media server (MediaServer, MS), and an access device (Media Gateway, MG).

Among them, the soft switch or media gateway controller has its own database server (connected with the soft switch or gateway controller through LAN) and management configuration system (connected with the soft switch or gateway controller through LAN) to realize call connection and control functions , to realize personalized ring-back tone business process control (or complete business process control by an upper-layer business server).

The media server is mainly used to provide media processing functions in basic and enhanced services, including service tone provision, conference, interactive answering, notification, advanced voice services, etc. Here, it is mainly used to provide various personalized ringback tone recording and playback functions.

Access devices are responsible for accessing end users.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Figure 1 is a schematic diagram of a next-generation network system for implementing personalized ring-back tone services. Since the comprehensiveness of access terminal types is not concerned, only the access device MG is shown as a representative.

The softswitch or media gateway controller is a physical entity responsible for connecting and controlling the call flow of all registered users and triggering business logic. It completes the function of the softswitch network architecture control layer control device;

The media server is mainly used to provide the functions of recording and playing various voice notifications, music, songs, storylines, character dialogues, etc.;

The connection protocol between the various components is as follows: the control protocol between the softswitch or media gateway controller and the access device is H.248 or MGCP (Media Gateway Control Protocol, Media Gateway Control Protocol) protocol, and the softswitch or media gateway controller The control protocol with the media server is H.248 or MGCP protocol, and the media stream transmission and control protocols between the access devices or between the access device and the media server are RTP (Real Time Protocol, Real-time Transport Protocol) and RTCP (Real Time Protocol) respectively. Time Control Protocol, Real-time Transmission Control Protocol).

FIG. 2 shows a schematic diagram of a personalized ring back tone service flow described by the standard H.248 protocol.

The process description is as follows:

1) MG1 detects the off-hook message of user User1, and reports the off-hook event to MGC through a Notify (event report) command;

2) MGC returns a Reply (response message) to MG1;

3) MGC sends a Modify (modify termination point) message to MG1, sends a number table to MG1; requests MG1 to play a dial tone; and detects events such as completion of number collection and hang-up;

4) MG1 returns a Reply to the MGC;

5) User1 on MG1 dials, MG1 receives the number according to the number list issued by MGC, and reports the dialed number and matching result to MGC with the Notify command;

6) MGC returns a Reply to MG1;

7) MGC sends an Add (add termination point) message to MG1, creates a new context (context) in MG1, and adds user User1's termination (termination point) and RTP termination to the context, wherein the Mode (mode) of RTP is set Set it to ReceiveOnly (receive only), and set the voice compression algorithm;

8) MG1 allocates resource RTP1 for the required Add RTP, and responds to MGC with a Reply message, which includes the IP address of RTP1, the voice compression algorithm used and the RTP port number, etc.;

9) The media gateway controller MGC sends an Add message to MG2, creates a new context in MG2, and adds termination and RTP termination of user USER2 in the context, wherein Mode is set to SendReceive (transmitting and receiving), and remote RTP address and port number are set, Voice compression algorithm, etc.; require MG2 to send ringing tone to the called party;

10) MG2 allocates resource RTP2 for the required Add RTP, and responds to MGC with a Reply message, which includes the IP address of RTP2, the voice compression algorithm used and the RTP port number, etc.;

11) MGC applies for resources from MS, with SDP (Session Description Protocol, Session Description Protocol) information of RTP1 attached, which is used to play a special ringback tone for User1;

12) The MS returns a Reply to the MGC, carrying the SDP information of the allocated resource terminal Y1;

13) MGC sends a Modify message to MG1 to modify the remote SDP information of RTP1 to communicate with Y1, and modify the RTP1 mode to ReciveOnly;

14) MG1 returns a Reply to the MGC;

15) The MGC sends a Modify command to the MS, requiring Y1 to play the ringback tone of the specified tone number to the outside;

16) The MS returns a Reply to the MGC; at this time, User1 listens to the ringback tone registered by User2 in advance;

17) MG2 detects the off-hook message of user User2, and reports the off-hook event to MGC through the Notify command;

18) MGC returns Reply to MG2;

19) The MGC sends a Modify message to the MS to allow the MS to stop playing the ringback tone;

20) MS returns Reply to MGC;

21) The MGC sends a Subtract (delete termination) message to the MS to release the resource terminal Y1;

22) MG1 returns a Reply to the MGC;

23) MGC sends a Modify message to MG2 to let MG2 monitor User2's on-hook and hook-flashing events;

24) MG2 returns a Reply to the MGC;

25) MGC sends a Modify message to MG1 to modify the remote SDP information of RTP1 to communicate with RTP2, and modify the mode of RTP1 to SendReceive;

26) MG1 returns a Reply to the MGC; User1 talks to User2 normally.

A specific example of the present invention is given below.

Register and activate the personalized ring-back tone service for User2 on the side of the softswitch or media gateway controller, specify the tone number and store it in the database, and the specified tone number is a recording notification identifier that has been recorded on the media server.

MG1 user terminal User1 dials the number of called user terminal User2 under MG2, the call is connected through the soft switch or media gateway controller, the called user User2 rings, and User1 listens to the recorded notification "Sorry, I am not at home now, but you can call through other Find me. Office phone, xxxxxx; mobile phone, xxxxxxxxxxx; pager, xxx call xxxxxx;", through this customized recording notification, when other users call the called user's home phone, they will be informed of other contact methods. It greatly facilitates the connection between users and reduces the loss of information. When the user goes home, he can dial the specified service code on the terminal to deactivate (at this time, deactivate, which means temporarily canceling) the personalized ring back tone service. After that, all users who dial User2 will listen to the traditional ring back tone . If you go out, you can dial another specified service code on the terminal to activate the service again.

The present invention adds a new service that can be implemented on the next generation network, enhances the service provision capability of the next generation network equipment manufacturer; enriches the types of value-added services of the operator, and can make the average income per user (Average) of the operator Revenue Per User (ARPU) value has been significantly improved, increasing the profit of operators.

Claims (3)

1. A system for providing personalized ring-back tone services in the next generation network, the system architecture includes at least a softswitch or media gateway controller, a media server, and access equipment; It is characterized by: Described soft switch or media gateway controller are provided with own database server and management configuration system, are connected with soft switch or media gateway controller by LAN mode, are used for realizing the control of personalized ring back tone business process; Described media server is used for providing multiple personalized ring back tone recording and playback; The access device communicates with the softswitch or the media gateway controller using the H.248 protocol or the media gateway control protocol, and the access device communicates with the media server using the real-time transport protocol and the real-time transport control protocol, The access device is used to be responsible for accessing users; Register and activate the personalized ring back tone service for the called user on the softswitch or media gateway controller side and specify the tone number and store it in the database. The specified tone number is a personalized ringback that has been recorded on the media server The tone identifier, the soft switch or the media gateway controller realizes the personalized ring back tone service according to the specified tone number. 2. A method for providing a personalized ring back tone service in a next-generation network, comprising the following steps: Step 1: After the softswitch or media gateway controller notifies the called user's access device to ring the called user, before sending the traditional ring back tone to the calling user, check whether the service attribute of the called user is registered for personalization ring back tone service; Second step: if the called user registers and activates the personalized ring back tone service, the softswitch or media gateway controller queries the database to obtain the ring back tone number registered by the user; Step 3: If the access device can play the recording notification, it does not need to use the media server. If it can only play the basic sound, it needs to use the media server to play the recording notification. The soft switch or media gateway controller requests the media server to prepare the resources for playback; Step 4: After the media server is successfully prepared, the softswitch or the media gateway controller notifies the calling access device to modify the remote media attribute of the calling user to the resources prepared by the media server; Step 5: After the modification is successful, the softswitch or the media gateway controller notifies the media server to play the specified recording to the outside; the calling user starts to listen to the personalized ring back tone; Step 6: After the called user picks up or answers the call, the softswitch or the media gateway controller notifies the media server to stop playing the sound, deletes the corresponding resources on the media server, and notifies the caller’s access device to change the caller’s remote media attribute to For the media attribute of the called user, the media flow between the calling party and the called party is connected, and the conversation is started; if the calling user hangs up during listening to the personalized ring back tone, the softswitch or the media gateway controller notifies the media server to stop playing the tone, and Delete the corresponding resources on the media server. 3. The method for providing personalized ring back tone service in next generation network as claimed in claim 2, characterized in that: Register and activate the personalized ring back tone service for the called user on the side of the softswitch or media gateway controller, specify the tone number and store it in the database; The designated sound number is a personalized ring-back tone identifier that has been recorded on the media server.

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