WO2007104227A1

WO2007104227A1 - A communication system, method and a service switch point, a service control point and a device thereof

Info

Publication number: WO2007104227A1
Application number: PCT/CN2007/000554
Authority: WO
Inventors: Chonghui Huang; Xiaoqing Hu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-03-14
Filing date: 2007-02-15
Publication date: 2007-09-20
Also published as: CN1859492A; CN100496074C

Abstract

A communication system, method and a service switch point, a service control point and a device are disclosed. The said communication system comprises a ring-back tone processing point and at least two ring-back tone platforms corresponding to different user numbers. The said ring-back tone processing point comprises a routing unit and a notification unit. When the received user number of the calling service carries a ring-back tone access number, the said routing unit determines the ring-back tone platform corresponding to the said received user number of the calling service, according to the received user number of the calling service; the said notification unit indicates the said determined ring-back tone platform to play the ring-back tone corresponding to the user number. The present invention implements that one operating network can access the ring-back platform function provided by different suppliers at the same time, thus users in different number segments can achieve distinguishing services.

Description

Communication system, method and service switching node, service control node and device

The present application claims priority to Chinese Patent Application No. 200610034266.3, entitled "A Method of Providing Ringback Tone", filed on March 14, 2006, the entire contents of which is incorporated herein by reference. in.

Technical equipment

The present invention relates to a communication system, method, and service switching node, service control node, and apparatus.

Background technique

The ring back tone service is a service that allows the telephone user to customize the ring back tone. It is called after the caller calls the called party. After the called terminal rings and picks up the phone, the calling user hears the caller or the called party or Personalized ring back tone customized by the group user.

In addition, the ringback tone can be divided into: a ringback tone, a ringback tone, and a group ringback tone. The caller ringback tone is customized by the calling user; the ringback tone is called. It is customized by the called user; the group ringback tone is customized by the group customers.

The industry usually refers to the personalized ringback tone customized by the above-mentioned user as the ring back tone. When the calling user calls the called user who subscribes to the "color ring", the user no longer hears the traditional monotonous "dudu toot" back. Ringtone, but personalized ringback tone.

In addition, based on the marketing strategy, the operator divides different mobile phone users into different brands according to the segmentation of the mobile phone number, for example, dividing the mobile phone users into different brand users such as Global Pass, M-Zone, and Shenzhouxing, and for the different Brand users offer differentiated services.

Currently, the solution for providing CRBT services is to use the same ring back tone service in the same operating network. The platform provides CRBT services for different users.

Summary of the invention

Embodiments of the present invention provide a communication system, method, and service switching node, service control node, and apparatus for implementing a differentiated ring back tone service.

The invention provides a communication system comprising a ring back tone processing node and at least two ring back tone service platforms corresponding to different subscriber numbers. The ring back tone processing node includes a routing unit and a notification unit. The routing unit is configured to: when the user number of the received call service carries a ringback tone access code, determine, according to the user number of the received call service, corresponding to the received call service. a ringback tone service platform of the subscriber number; the notification unit is configured to instruct the ringback tone service platform of the nitrate to play a ringback tone corresponding to the subscriber number.

The present invention also provides a service switching node, which is used for performing service switching on an accessed call service, and includes a routing unit and a notification unit. The routing unit is configured to determine, according to the user number in the received call service, a ringback tone service platform corresponding to the user number, if the user number of the received call service carries a ringback tone access code And sending the user number to a ring back tone setting unit; the notification unit is configured to instruct the determined ring back tone service platform to play a ring back tone corresponding to the user number. The present invention further provides a service control node, including a service control device, where the service control device includes a routing unit and a notification unit. The routing unit is configured to: when the ringback tone access code is carried in the user number of the call service received from the service switching node, determine, according to the user number of the received call service, the corresponding user number a ring tone service platform; the notification unit is configured to instruct, by the service switching node, that the determined ring back tone service platform plays corresponding to the use The ringback tone of the subscriber number. The present invention further provides a service control apparatus, including a routing unit and a notification unit. The routing unit is configured to: when the called subscriber number of the received call service carries the ringback tone access code, determine, according to the received subscriber number of the call service, a ringback tone corresponding to the subscriber number a service platform; the notification unit is configured to instruct the determined ring back tone service platform to play a ring back tone corresponding to the user number.

The invention further provides a communication method, comprising the following steps: Step A: receiving a call service request, the user number in the call service request carrying a ringback tone access code; Step B: in the received call service When the user number carries the ringback tone access code, the ringback tone service platform corresponding to the user number is determined according to the correspondence between the user number and the ringback tone service platform; Step C: indicating the determined ringback The tone service platform plays a ringback tone corresponding to the subscriber number. The above communication system of the present invention can provide a ring back tone service platform corresponding to the number based on different user numbers, and play a ringback corresponding to the user number through the platform. Tones can be used to simultaneously access the ringback tone service platform provided by different device vendors in the same operating network, so that users with different numbers can obtain differentiated services.

The service switching node, the service control node, and the service control device of the present invention determine the ring back tone service platform corresponding to the number based on different user numbers, and play the ring back tone corresponding to the user number through the platform. Simultaneously access the functions of the ring back tone service platform provided by different device vendors in the same operating network, so that users of different numbers can obtain differentiated services. In the step B of the embodiment of the present invention, the ringback tone service platform corresponding to the number is determined according to the correspondence between the user number and the ring back tone service platform, and the step is indicated in step C. The platform plays the ringback tone corresponding to the user number, and can simultaneously access the function of the ring back tone service platform provided by different equipment vendors in the same operating network, so that different number users can obtain differentiated services.

DRAWINGS

1 is a flow chart of a second embodiment of a communication method of the present invention;

2 is a schematic diagram of a system according to a second embodiment of the communication system of the present invention; FIG. 3 is a signaling flowchart of a third embodiment of the communication method of the present invention;

4 is a flowchart of a fourth embodiment of a communication method according to the present invention; FIG. 5 is a schematic diagram of a system according to a third embodiment of the communication system of the present invention;

6 is a signaling flow chart of a fifth embodiment of the communication method of the present invention.

detailed description

How to provide different ring back tone service services for different service users has become a technical problem facing operators. However, since the operating network of the existing CRBT provides the CRBT service for users of all services based on the same ring back tone platform, it is not possible to provide differentiated ring back tone services for different service users.

The embodiment of the present invention is that the user can determine the ring back tone service platform corresponding to the user number according to the user number, such as the home number segment, so that different users can obtain the differentiated service. The method for determining the corresponding ring back tone service platform according to the user number may be determined according to the calling party number, or may be determined according to the called user number. The basis for determining the ring back tone service platform may be a relationship table between the home number segment of the user number and the ring back tone service platform, and the relationship table is preset. Fixed, and can be adjusted as needed. It should be noted that the ring back tone defined in the embodiment of the present invention is a personalized ring back tone that is customized by the user, that is, the ring back tone generally described.

The present invention provides a first embodiment of a communication system comprising a ring back tone processing node and at least two ring back tone service platforms corresponding to different subscriber numbers. The ring back tone processing node includes a routing unit and a notification unit. The routing unit is configured to determine, according to the user number of the received call service, a user number corresponding to the received call service, if the user number of the received call service carries a ringback tone access code The ringback tone service platform; the notification unit is configured to instruct the determined ringback tone service platform to play a ringback tone corresponding to the subscriber number.

The ring back tone processing node is a service switching node or a service control node. The ringback tone processing node further includes a ringback tone setting unit, configured to set a ringback tone information corresponding to the user number for the calling user, the called user, or the group user, and after receiving the user number of the routing unit, The ring back tone information corresponding to the number is input to the notification unit. The foregoing embodiments of the present invention provide at least two different ring back tone service platforms, and can determine a ring back tone service platform corresponding to the number based on different user numbers, and play a ring back tone corresponding to the user number through the platform. The function of simultaneously accessing the ring back tone service platform provided by different equipment vendors in the same operating network can be realized, so that different number users can obtain differentiated services. The present invention also provides a first embodiment of a service switching node, where the service switching node is configured to perform service switching on the accessed call service, and includes a routing unit and a notification unit. The routing unit is configured to determine, according to the user number in the received call service, a ringback tone service platform corresponding to the user number, if the user number of the received call service carries a ringback tone access code And sending the user number to a ringback tone setting unit; the notification unit is configured to indicate the determined The ring back tone service platform plays a ring back tone corresponding to the subscriber number.

In addition, in the specific implementation system, the service switching node in the embodiment of the present invention may adopt a gateway mobile switching center (GMSC) or other node device having a function of a service switching node. In the following description, a GMSC is taken as an example. Description.

The present invention also provides a first embodiment of a service control node, comprising a service control device, the service control device comprising a routing unit and a notification unit. The routing unit is configured to: when the ringback tone access code is carried in the user number of the call service received from the service switching node, determine, according to the user number of the received call service, the corresponding user number a ring tone service platform; the notification unit is configured to instruct, by the service switching node, the determined ring back tone service platform to play a ring back tone corresponding to the user number.

The present invention also provides a first embodiment of a service control apparatus comprising a routing unit and a notification unit. The routing unit is configured to: when the called subscriber number of the received call service carries the ringback tone access code, determine, according to the received subscriber number of the call service, a ringback tone corresponding to the subscriber number a service platform; the notification unit is configured to instruct the determined ring back tone service platform to play a ring back tone corresponding to the user number.

The first embodiment of the service switching node, the service control node, and the service control apparatus of the present invention determines a ring back tone service platform corresponding to the number based on different user numbers, and plays back a ringback corresponding to the user number through the platform. Tones can be used to simultaneously access the ringback tone service platform provided by different device vendors in the same operating network, so that users with different numbers can obtain differentiated services.

The present invention also provides a first embodiment of a communication method, including: Step A: receiving a call service request, the user number in the call service request carrying a ringback tone access code; Step B: in the case that the user number of the received call service carries a ringback tone access code, Determining, according to the correspondence between the user number and the ring back tone service platform, a ring back tone service platform corresponding to the user number; Step C: instructing the determined ring back tone service platform to play a ring back tone corresponding to the user number . In the step B of the embodiment of the present invention, the ringback tone service platform corresponding to the number is determined according to the correspondence between the user number and the ring back tone service platform, and in step C, the platform is instructed to play the corresponding user. The ringback tone of the number can be used to simultaneously access the ringback tone service platform provided by different device vendors in the same operating network, so that users with different numbers can obtain differentiated services. The present invention will be further described in detail below with reference to the drawings and embodiments. Referring to FIG. 1, the figure is a flowchart of a second embodiment of a communication method according to the present invention. The implementation manner is to select a ringback tone service platform corresponding to a called subscriber number by using a service switching node, where the called subscriber number is from Obtained from the user number of the received call service. The embodiment specifically includes the following steps: Step 11: The calling switch determines whether the called user is idle. If yes, step 12 is performed; otherwise, step 18 is performed. In a specific implementation, the calling switch acquires the roaming number of the called user from the called switch through the location server; the calling switch determines, according to the roaming number, that the called user is No, if the determination is yes, go to step 12, otherwise go to step 17; Step 12, send the calling and called user numbers of the currently received call service to the service switching node;

Step 13: The service switching node detects whether the ringback tone access code is carried in the called subscriber number, and if yes, step 14 is performed, otherwise, step 17 is performed;

Step-step 14, sending the calling and called user numbers to the service control node;

Step 15: The service control node determines, according to the called subscriber number, a home number segment of the called subscriber number, and determines, according to a relationship table between the subscriber number segment of the subscriber number and the ring back tone service platform, the number corresponding to the number segment. The ring back tone service platform acquires a ring back tone service platform access number corresponding to the determined ring back tone service platform

Step 16. The determined ringback tone service platform provides a ringback tone corresponding to the called subscriber number to the calling user terminal according to the called subscriber number. In a specific implementation, the service control node sends the ringback tone service platform access number and the called subscriber number corresponding to the determined ringback tone service platform to the service switching node; the service switching node uses the ring back tone service The platform access number sends a call sign to the ring back tone service platform, and sends the called subscriber number to the ring back tone service platform, indicating that the ring back tone service platform performs in the database according to the called subscriber number Querying, obtaining a ringback tone subscribed by the called user; the ringback tone platform provides the ringing tone subscribed by the called user to the calling user terminal.

In this way, the calling user can hear the customized ring back tone, and realize the function of playing the customized ring back tone for the calling user in the communication method of the present embodiment.

Step 17, according to the prior art that the user does not have a customized ring back tone; Step 18, processing according to the prior art.

As shown in the embodiment of the present invention, the ring back tone service platform corresponding to the number segment is determined in different ring back tone service platforms according to the home number segment of different user numbers; and then determined according to the basis of step 16 The access code of the ringback tone service platform initiates a call sign to the ring back tone service platform, and can simultaneously access the function of the ring back tone service platform provided by different equipment vendors in the same operation network, so that different number segments are different. Brand users can get differentiated services.

For the ring back tone service platform corresponding to the called subscriber number through the service control node, and the ring back tone processing method for instructing the ring back tone service platform to play the ring back tone, the following communication system of the present invention may be used. The second embodiment and the third embodiment of the communication method of the present invention are specifically described.

2 is a schematic diagram of a system according to a second embodiment of the communication system of the present invention. The system includes: a calling exchange (OCC 210), a called switch (VMSC 250), a service control node (SCP 240), a GMSC 230, a location server (HLR 220), two ringback tone service platforms (CRBT 260), and ISUP/TUP. The following are explained separately:

The OMSC 210 is configured to connect to the called end office and the service switching node through the ISUP/TUP. The VMSC 250 is the called end office where the CRBT user B is located, and is responsible for accessing the called user B, and returns the B user status according to the actual situation.

The SCP 240 is configured to record the called subscriber's home number segment information, and select the CRBT 260 corresponding to the subscriber number according to the received subscriber number, and instruct the CRBT 260 to play a ringback tone corresponding to the subscriber number. .

The SCP 240 includes: a routing unit 241, configured to be used by the called party in the received call service When the ringback tone access code is carried in the subscriber number, the CRBT 260 corresponding to the subscriber number is determined according to the subscriber number in the received call service, and the subscriber number is sent to the ringback tone setting unit 242. The notification unit 243 is configured to instruct the determined CRBT 260 to play a ring back tone corresponding to the user number. The routing unit 241 further includes a number parsing unit 2411, configured to obtain a home number segment according to the user number in the accessed call service, and determine, as the routing unit 241, a basis of the CRBT 260; the ring back tone The setting unit 242 is configured to set the ringback tone information corresponding to the user number by the calling user, the called user or the group user, and input the ring back tone information corresponding to the number into the notification unit after receiving the user number of the routing unit 241. 243.

The routing unit 241, the ring back tone setting unit 242, and the notification unit 243 may be integrated to form a service control device.

The GMSC 230 is configured to trigger the smart service to the SGP 240 according to the called party, and connect the call to the ring back tone service according to the SCP 240 indication to implement the CRBT service. Specifically, the determining unit is configured to determine whether the received call service carries a ringback tone access code, and if the determination is yes, the GMSC 230 sends the caller and the called party number in the received call service to SCP 240.

The HLR 220 is configured to record user information and CRBT registration information.

The two CRBTs 260 are CRBT-1 and CRBT-2, which correspond to ringback tone services of different ring back tone services, and each CRBT 260 is used to record the user CRBT setting; and provide ring tones according to the calling and called user numbers. The playback resource and the management of the CRBT playback resource are provided; the user is self-management and self-service; when the CRBT service is implemented, the customized information is obtained according to the service trigger point, such as the number sent by the service switching node, and the CRBT is played to the calling user.

The ISUP/TUP is a partial part/telephone user part of the integrated service digital network. Need to explain,

1. In this system, two ringback tone platforms CRBT-1 and CRBT-2 are taken as examples, and two corresponding users of different attribution segments are two different brand users. In the specific implementation, multiple ring back tone platforms can be configured according to the implementation situation. The principle is the same as the above system, and will not be repeated here;

2. The intelligent service of the SCP 240 is triggered by the ringback tone access code, and the access code is BTInCode. The number can be configured when actually used.

3. The access code of CRBT-1 is RBTCode, and the access code of CRBT-2 is RBTInCode. In addition, some signaling information is explained:

SRI: MAP—SEND— ROUTING—Information, routing information query signaling; PRN: MAP—PROVIDE—ROAMING—NUMBER, roaming number query signaling;

I AM: Initial Address Message, initial address signaling;

ACM: Address Complete Message, address full signaling;

ANM: Answer message response signaling;

IDP: Initial Detection Points, initial detection signaling;

CONNECT: connection signaling;

MSSIDN: Mobile station international ISDN number, called user number;

MSRN: Mobile Station Roaming Number, roaming number;

Referring to FIG. 3, the following is a case where the calling user is A and the called user is B, and the home number segment of the B user number is a brand user corresponding to the CRBT-1, and the second embodiment of the communication system of the present invention is used. The flow of the third embodiment of the communication method of the invention will be described. The process specifically includes: Step s101, the OMSC 210 accepts the A user call, and sends an SRI to the HLR 220 to query the roaming number of the called user B.

Step sl02, the HLR 220 sends a PR to the called VMSC 250 to obtain the roaming number MSRN;

Step s 103, the VMSC 250 returns the roaming number MSRN to the HRC through the PRN_Ack; Step si 04, the HLR 220 returns the roaming number to the OMSC 210 through the SRI_Ack (the processing of other intelligent service information is omitted here);

Step si 05, the OMSC 210 initiates a call to the VMSC 250 by sending an IAM to the VMSC 250, wherein the call carries the roaming number MSRN of the called subscriber number; 'step butterfly sl06, the VMSC 250 calls the B subscriber to determine whether the B subscriber is idle, if If the user is called idle, the ACM is returned, indicating that the called user is idle;

Step s 107, the OMSC 210 determines the status of the called user according to the returned ACM signaling, and then sends the IAM to the GMSC 230 according to the CRBT registration information, where the called user number includes the CRBT access code and the called MSSIDN: RBTINCode+MSSIDN;

Step sl08, 0]\^0 230 according to 1^111^( 0 (16 triggers intelligent service, sending and carrying called

MSSIDN's IDP initial detection point to SCP 240;

In step s109, the parsing unit 2411 of the SCP 240 obtains the home number segment information of the B user according to the MSISDN number of the called user, and the SCP 240 assigns the call to the home by CONNECT according to the correspondence between the home number segment and the CRBT 260. The CRBT-1 corresponding to the segment; step s 110, the GMSC 230 according to the RBTCode 1 in the CONNECT message of the SCP 240, Initiating a call to CRBT-1; Step sill, CRBT-1 determines and queries the database for the customized ringtone information of the called user B; Step sll2, CRBT-1 returns ACM to GMSC 230, and then starts playing the called party to the calling user A. User B customizes the CRBT. In step sll3, the GMSC 230 returns the ACM to the OMSC 210 to connect the ring back tone and the calling line to enable the calling user A to listen to the ring tone of the CRBT-1 broadcast. After the above steps are completed, the calling user A listens to the CRBT played by CRBT-1, and after the called user B answers, the OMSC 210 releases the ring back tone call with the GMSC 230, and the calling party and the called party start talking.

The foregoing embodiment is based on the data processing capability of the intelligent network, and sets the correspondence between the home number segment of the user number and the CRBT 260 in the SCP 240, distinguishes the home number segments of different brand users, and routes different brand users to different CRBTs. 260, thus providing differentiated services for different brands of users.

For the CRBT corresponding to the called subscriber number selected by the service switching node, and the ringback tone processing manner for instructing the CRBT to play the ringback tone, the following third embodiment of the communication system of the present invention and the communication method of the present invention may be adopted. The four embodiments are specifically described.

In the GMSC-based network, first, the OMSC determines whether the called user is idle, and after determining the call, sends the calling and called user numbers of the current call to the GMSC; and then, the GMSC detects the called party. Whether the ringback tone access code is carried in the user number, and after determining that it is YES, determining the attribution number segment of the called subscriber number, and determining and according to the attribution number segment The CRBT corresponding to the number segment; finally, the determined CRBT provides a ringback tone corresponding to the called subscriber number to the calling user terminal according to the called subscriber number. The details are explained below.

Referring to FIG. 4, the figure is a flowchart of a fourth embodiment of a communication method according to the present invention, which specifically includes the following steps:

Step 21: The OMSC 510 determines whether the called user is idle. If yes, step 12 is performed. Otherwise, step 28 is performed. In specific implementation, the OMSC 510 obtains the roaming number of the called user from the VMSC 540 through the location server; the OMSC 510 passes the VMSC 540. Determining, by the roaming number, whether the called user is idle, and after determining that the call is made, sending the calling and called user numbers to the MSC;

Step 22: Send the calling and called user numbers of the current call to the MSC;

Step 23, the MSC detects whether the called subscriber number carries a ringback tone access code, and if so, step 24 is performed, otherwise, step 27 is performed;

Step 24: Obtain a called user number.

Step 25: The GMSC 530 determines the attribution number segment of the called subscriber number according to the called subscriber number, and determines the CRBT 550 corresponding to the number segment according to the correspondence between the attribution number segment and the CRBT 550, and acquires The CRBT 550 access number corresponding to the determined CRBT 550

Step 26: The CRBT 550 provides a ringback tone corresponding to the called subscriber number to the calling user terminal according to the called subscriber number. In specific implementation, the GMSC 530 obtains the After determining the CRBT 550 access number corresponding to the CRBT 550, a call sign is sent to the CRBT 550 according to the CRBT 550 access number, and the called user number is sent to The CRBT 550; the CRBT 550 acquires a ringback tone subscribed by the called user according to the called user number; the CRBT 550 provides the calling user terminal with a ringback tone subscribed by the called user;

Step 27: According to the prior art, the user does not have a customized ring back tone;

Step 28, according to the prior art.

Referring to FIG. 5, the figure is a system diagram of a third embodiment of a communication system according to the present invention. The system includes: an OMSC 510, a VMSC 540, a GMSC 53Q, an HLR 520, and two CRBTs 550. The following are described separately:

The OMSC 510 is configured to connect to the VMSC 540 of the called end office through the ISUP/TUP. The VMSC 540 is the called end office where the CRBT user B is located, and is responsible for accessing the called user B, and returns the user status of the called user B according to the actual situation.

The GMSC 530 is configured to trigger the smart service to the SCP according to the called party, and connect the call to the ring back tone service according to the SCP indication to implement the CRBT service. Specifically, it is used for performing service exchange on the received call service, which includes a service control unit.

The service control unit includes: a judging unit, a routing unit 531, a notification unit 533, and a ring back tone setting unit 532. The determining unit is configured to determine whether a ringback tone access code is carried in the user number of the received call service, and the routing unit 531 is configured to carry a ringback tone access code in the user number of the received call service. In the case, the CRBT 550 corresponding to the user number is determined according to the correspondence between the called subscriber number and the CRBT 550; the notification unit 533 is used to refer to The determined CRBT 550 plays a ring back tone corresponding to the called subscriber number. The routing unit 531 further includes a number parsing unit 5311, configured to obtain a home number segment according to the user number in the accessed call service, and determine, as the routing unit 531, a basis of the CRBT 550; the ring back tone The setting unit 532 is configured to set the ringback tone information corresponding to the user number for the calling user, the called user or the group user, and input the ring back tone information corresponding to the number into the notification unit after receiving the user number of the routing unit 531. 533.

The HLR 520 is configured to record user information and CRBT registration information.

The CRBT 550 is configured to record a user CRBT setting, provide a CRBT tone resource and manage a CRBT playback resource according to the calling and called subscriber numbers, and provide user self-management and self-service; in the CRBT service, according to a service trigger point, The number query sent by the OMSC 510 obtains the ringback tone customization information, and plays the queryed CRBT to the calling user.

FIG. 6 is a signaling flowchart of a fifth implementation manner of a communication method according to the present invention. The specific signaling process step includes: Step s201: The OMSC 510 accepts a call from a calling user, and sends an SRI to the HLR 520 to obtain a called roaming number. Step s202, the HLR 520 sends a PRN to the called VMSC 540 to obtain a roaming number.

In step s203, the VMSC 540 returns the roaming number MSRN to the HRC through the PRN_Ack; in step s204, the HLR 520 returns the roaming number to the OMSC 510 through the SRI_Ack (the processing of other intelligent service information is omitted here); Step s205, the OMSC 510 initiates a call to the VMSC 540, and the called subscriber number carries the roaming number MSRN of the user B;

Step s206, the VMSC 540 calls the called user B to determine the called state. If the called party is idle, the ACM is returned to the OMSC 510, indicating that the called user is idle;

Step s207, the OMSC 510 determines the status of the user, and then sends the information to the GMSC according to the CRBT registration information.

530 sends an IAM carrying the called subscriber number. The called subscriber number includes the CRBT access code and the called MSS: RBTINCode+MSSIDN;

In step s208, the parsing unit 5311 of the routing unit 531 in the GMSC 530 obtains the home number segment according to the subscriber number, and the routing unit 531 obtains the called subscriber number corresponding to the correspondence between the subscriber number segment of the subscriber number and the CRBT 550. CRBT-1, determining routing information of the corresponding CRBT-1;

Step s209, the GMSC 530 routes the call to the corresponding CRBT-1 according to the routing information obtained by the foregoing analysis;

Step s210, CRBT-1 determines and queries the customized information of the B number;

Step s211, CRBT-1 returns to ACM, and then starts playing a customized color ring tone;

In step s212, the GMSC 530 returns the ACM to the OMSC 510 to connect the CRBT and the calling party to enable the calling user A to listen to the CRBT played by the CRBT-1.

After the above steps are completed, the calling user listens to the CRBT played by CRBT-1, and after the called user answers, the OMSC 510 releases the CRBT call with the GMSC 530, and the calling user and the called user start talking. The communication system, the method, and the service switching node, the service control node, and the device of the present invention are specifically described by the preferred embodiments. It should be noted that those skilled in the art can, without departing from the principle of the present invention, Several modifications and refinements can be made, which are also considered to be within the scope of the present invention.

Claims

Rights request

A communication system, comprising:

At least two ringback tone service platforms corresponding to different user numbers,

a ring back tone processing node, where the ring back tone processing node includes:

a routing unit, configured to: when the user number of the received call service carries a ringback tone access code, the user number of the received call service is determined to correspond to the user number in the received call service. Ringback tone service platform;

And a notification unit, configured to instruct the ringback tone service platform of the nitrate to play a ringback tone corresponding to the user number.

The communication system according to claim 1, wherein said ring back tone processing node is a service switching node.

The communication system according to claim 2, further comprising a location server, a calling switch, and a called switch, wherein the location server is configured to obtain a current called call from the called switch when the call service accesses The roaming number of the called user is sent to the calling switch, and the calling switch includes a sending determining unit and a sending unit, where the sending determining unit is configured to determine, according to the roaming number, whether the called user is idle, When the called user is idle, the sending unit is triggered to send the call service request carrying the ring back tone access code to the service switching node.

The communication system according to claim 1, wherein said ring back tone processing node is a service control node.

5. The communication system of claim 4 further comprising a service exchange And a node, configured to send the user number of the received call service to the service control node, and forward the indication of playing the ring back tone corresponding to the user number.

The communication system according to claim 5, wherein the service switching node further comprises a determining unit, configured to determine whether a ringback tone access code is carried in the user number of the received call service, In the case of YES, the routing unit is triggered to work.

The communication system according to any one of claims 1 to 6, wherein the ring back tone processing node further comprises a ring back tone setting unit for setting a calling party, a called party or a group user. Corresponding to the ring back tone information of the user number, and after receiving the user number of the routing unit, input the ring back tone information corresponding to the number into the notification unit.

The communication system according to any one of claims 1 to 6, wherein the routing unit further comprises a number resolution unit, configured to obtain a home number according to the user number in the received call service. The segment is used as the basis for determining the ring back tone service platform by the routing unit.

A service switching node for performing service exchange on a received call service, characterized in that it comprises:

a routing unit, configured to determine, when the user number of the received call service carries a ringback tone access code, the ringback tone service corresponding to the user number according to the user number in the received call service a platform, and sending the user number to a ring back tone setting unit;

The notification unit is configured to instruct the determined ring back tone service platform to play a ring back tone corresponding to the user number.

10. The service switching node according to claim 9, wherein the service switching node further comprises a ring back tone setting unit, configured for the calling user, the called user or the group user. Corresponding to the ring back tone information of the user number, and inputting the set ring back tone information of the user number into the notification unit.

The service switching node according to claim 9, further comprising: a determining unit, configured to determine whether a ringback tone access code is carried in the user number of the received call service, and the determination is yes. The routing unit is triggered to work.

A service control node, comprising: a service control device, wherein the service control device comprises:

a routing unit, configured to: when the ringback tone access code is carried in the user number of the call service received from the service switching node, the user number of the received call service determines a ringback corresponding to the user number Audio service platform;

And a notification unit, configured to instruct, by the service switching node, the determined ring back tone service platform to play a ring back tone corresponding to the user number.

13. A service control device, comprising:

a routing unit, configured to determine, when the called subscriber number of the received call service carries a ringback tone access code, a ringback corresponding to the subscriber number according to the user number of the received call service Audio service platform;

14. The service control apparatus according to claim 13, further comprising a ring back tone setting unit for the calling user, the called user or the group user to set the corresponding user number Enter the notification unit.

15. A communication method, comprising:

Receiving a call service request, where the user number in the call service request carries a ringback tone access code;

And determining, according to the correspondence between the user number and the ringback tone service platform, a ringback tone service platform corresponding to the user number, where the user number of the received call service carries a ringback tone access code;

Instructing the determined ring back tone service platform to play a ring back tone corresponding to the subscriber number.

The communication method according to claim 15, wherein the manner of determining the ring back tone service platform according to the user number is: corresponding to the ring number tone service platform according to the home number segment of the user number The relationship determines the ring back tone service platform of the subscriber number.

The communication method according to claim 16, wherein the determining the ring back tone service platform process is determined by using a home number segment of the called subscriber number.

The communication method according to claim 15 or 16, wherein

Before determining the ringback tone service platform, the method includes: determining whether a ringback tone access code is carried in the called user number of the received call service;

After determining that the ringback tone access code is carried and the ringback tone service platform is determined, the method further includes: sending the user number to the service control node;

The step of indicating that the ring back tone service platform plays the ring back tone includes:

Sending a ring back tone service platform access number and a user number corresponding to the determined ring back tone service platform to the service switching node; Initiating a call to the ring back tone service platform by using the ring back tone service platform access number, and sending the user number to the ring back tone service platform, instructing the ring back tone service platform to obtain a subscription according to the user number The ringback tone is played and the ringback tone is played to the calling user.

The communication method according to claim 15 or 16, wherein the step of indicating that the ring back tone service platform plays the ring back tone comprises:

The service switching node acquires a ring back tone service platform access number corresponding to the determined ring back tone service platform;

Sending a call sign to the ring back tone platform by using the ring back tone service platform access number, and sending the user number to the ring back tone service platform;

A customized ring back tone is obtained according to the user number.