WO2008083604A1

WO2008083604A1 - Method and system for processing call service, msc and hlr thereof

Info

Publication number: WO2008083604A1
Application number: PCT/CN2007/071390
Authority: WO
Inventors: Wengang Tian; Shen Zhao; Xingcan Xie
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-12-30
Filing date: 2007-12-29
Publication date: 2008-07-17

Abstract

The embodiment of present invention provides a method and a system for processing call service, and a MSC and a HLR thereof. The method includes: recording the number of the call service which is being performed by the same subscriber, when the call service taking place one time, increasing the recorded number of current call service; when releasing the call service once, reducing the recorded number value of the current call service. At the same time, the method sets in advance a top threshold of the number for the call service being permitted simultaneously by a subscriber. When the subscriber performing call service, the method judges whether the current recorded number of the call service is lower than the top threshold value preset for permitting call service, if not, then not performing call service; if yes, then permitting the subscriber to perform call service. Therefore, the method can restrict call service performed simultaneously by subscriber in a short time, and effectively restrict illegal person to perform fraud by using the call service.

Description

Method, system and MSC and HLR technical field for processing call service

The present invention relates to call technology, and more particularly to a method, system, and mobile switching center (MSC) and home location register (HLR) for handling call services. Background of the invention

With the continuous development of the communication industry and the continuous improvement of user requirements, more and more types of services have emerged. Among them, call forwarding and call transfer (CT, Call Transfer) are two new types of services that are more common.

The call forwarding service user needs to preset the relevant forwarding information through registration, and upload the related forwarding information set to the network. The forwarding information includes: a call forwarding condition and a call forwarding number. Call forwarding is divided into early call forwarding and late call forwarding. Among them, early call forwarding generally includes unconditional forward and inter-office busy forward; late call forward generally includes intra-office forward and no-answer forward. The CT service does not require the user to pre-register, and only needs to give the user the right to operate the CT. In this paper, users who have pre-registered in the call forwarding service and users who have CT service rights in the CT service are collectively referred to as contracted users.

When user A calls user B, if user B is the user who has registered the forwarding service and is set to forward to the user C after satisfying the forwarding condition, the call of user A can be forwarded to user C, thereby establishing the user. The connection between A and user C.

If user A has the right to CT service and the call is transferred to user C, then after user A calls user B, when user A calls user C again, the established call is transferred to the third-party user C. At this time, the user A can hang up and establish a connection between user B and user C. Although these services meet people's needs, some criminals use such services to transfer calls to other phone numbers, which are most likely to be high-priced phone numbers. Usually, criminals use some information, such as short messages, fast-hanging calls, or small advertisements to spread certain numbers to people, and sign up for these broadcasted numbers. When people are tricked into calling, criminals In a short period of time, the call is transferred to the high-pay phone to obtain illegal profits, thereby causing economic losses. However, there is no method in the prior art that can limit the call service established by the contracted user in a short time. . Moreover, in order to avoid the ban on these high-paying telephone numbers, some lawless elements will continually modify the number of call forwarding or call forwarding without restriction, which also makes it difficult to ban these illegal elements. Summary of the invention

The embodiment of the invention provides a method, a system, an MSC and an HLR for processing a call service, so as to limit the call service that the subscription user performs simultaneously in a short time.

A method, system, and HLR for modifying subscription data to limit user modification of subscription data.

(To be added to the content of the claim.)

It can be seen from the foregoing technical solution that the embodiment of the present invention can increase the number of times that the number of records of the current call service of the subscriber is less than the upper limit of the number of allowed call services before the call forwarding operation is executed, thereby limiting the subscription user in a short time. Simultaneous call services effectively limit the use of call services by criminals.

The embodiment of the present invention can further limit the step of determining whether the current number of subscription data modification times of the user reaches a preset maximum modification number before modifying the user subscription data, thereby limiting frequent modification of the subscription data by the user, and effectively limiting the use of the criminals. Calling business fraud. BRIEF DESCRIPTION OF THE DRAWINGS

Figure La is a schematic structural diagram of an MSC according to an embodiment of the present invention;

Figure l.b is a schematic structural diagram of an HLR according to an embodiment of the present invention;

Figure is a flowchart of a method for processing a call service according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for limiting the number of call services in an early call forwarding service according to an embodiment of the present invention;

4 is a flowchart of a method for limiting the number of call services in a forward call forwarding service according to an embodiment of the present invention;

FIG. 5 is a flowchart of a method for limiting the number of call services in a CT service according to an embodiment of the present invention;

FIG. 6 is a flowchart of a method for limiting the number of call services in a call forwarding service on an HLR according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a system for processing a call service according to an embodiment of the present invention; FIG. 8 is a flowchart of a method for modifying subscription data according to an embodiment of the present invention;

FIG. 9 is a structural diagram of a system for modifying subscription data according to an embodiment of the present invention. Mode for carrying out the invention

The method provided by the embodiment of the present invention includes: setting an upper limit value of the number of allowed call services in advance; receiving call service data, and performing call service processing when the number of times of recording of the current call service of the subscription user is less than the upper limit of the number of call service times, and Change the number of records.

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

Figure La is a schematic diagram of the MSC structure for processing call services. As shown in FIG. 1, the device is mainly composed of a setting module 101, a judging module 102, a counting module 103, and a calling module 104. The setting module 101: sets an upper limit value of the number of times the subscription user allows the call service, and sends it to the judging module 102.

The maximum number of allowed call times is the number of calls for a call service that a subscriber can access at the same time. The upper limit of the number of call services is generally set by the operator according to actual needs.

The judging module 102: respectively receives the upper limit of the number of allowed call services from the setting module 101 and the number of recordings of the current call service from the counting module 103, and after receiving the trigger notification sent by the calling module 104, determining the number of current calling services of the signing user Whether it is less than the upper limit of the number of call services, if not, sending a rejection notification to the calling module 104; if yes, sending a call notification to the calling module 104, and transmitting a notification to the counting module 103.

The counting module 103: after receiving the recording notification sent by the determining module 102, increasing the number of recordings of the calling service; and transmitting the number of recordings to the determining module 102.

The number of times of adding the call service may be increased by one. In the following examples, the description is made by adding 1.

The calling module 104: after receiving the call service data, sending a trigger notification to the determining module 102; after receiving the rejection notification sent by the determining module 102, the current call service is removed; after receiving the call notification sent by the determining module 102, according to the receiving The incoming call service data is used to perform the current call service.

The call request is generally sent by the base station controller (BSC) to the MSC when the user makes a call.

The received call service data means: if the call forwarding service is performed, the call module 104 receives data such as a forwarding number and location information sent by the HLR; if the CT service is performed, the calling module 104 The received user number can be transferred to.

Further, when a call service is released, the calling module 104 sends a release notification to the determination module 102; After receiving the release notification sent by the call module 104, the determining module 102 sends a countdown notification to the counting module 103;

After receiving the subtraction notification sent by the judging module, the counting module 103 reduces the number of recordings of the call service.

The number of records of the less call service may be one less than the number of times the call service is recorded. In the following embodiments, the description is made by subtracting one.

The HLR provided by the embodiment of the present invention is described in detail below. As shown in FIG. Lb, the HLR includes: a setting module 101, a determining module 102, a counting module 103, a transmitting and receiving module 105, and a timing module 106.

The setting module 101 sets an upper limit value of the number of times the subscription user allows the call service, and sends the value to the judgment module 102.

The determining module 102 receives the upper limit of the number of allowed call services from the setting module 101 and the number of records of the current call service from the counting module 103, respectively, and after receiving the trigger notification of the sending and receiving module 105, compares the two, and determines The number of times the subscriber subscribes to the current service, and compares the two to determine whether the number of times the subscriber is currently calling is less than the upper limit of the number of calls. If not, send a negative notification to the sending and receiving module.

105; If yes, send a confirmation notification to the sending and receiving module 105, and send a record notification to the counting module 103.

The counting module 103, after receiving the record notification sent by the determining module 102, increments the number of records by one; and sends the number of records to the determining module 102.

The sending and receiving module 105 is configured to: after receiving the call service data, send a trigger notification to the determining module 102; after receiving the negative notification sent by the determining module 102, send a negative cause value; after receiving the confirmation notification sent by the determining module 102, send Call business data.

The negative cause value may be sent to the MSC, and the MSC removes the call after receiving the negative cause value. The call service data may be sent to the MSC, and after receiving the forwarding data, the MSC is used to perform a call service. The call service data is call forwarding service data.

The negative cause value and call service data may be sent out through a routing information confirmation message.

The sending and receiving module 105 is further configured to send a countdown notification to the counting module 103 after receiving the call release notification sent by the MSC.

The counting module 103 is further configured to reduce the number of recordings of the call service after receiving the subtraction notification.

2 is a flow chart of a method for processing a call service. As shown in FIG. 2, the method of the embodiment of the present invention includes the following steps:

Step 201: Presetting the upper limit of the number of allowed call services.

The maximum number of allowed call services is the number of calls for a call service that a subscriber can access simultaneously. The upper limit of the number of call services is generally set by the operator according to actual needs.

Step 202: Receive relevant call service data, determine whether the number of records of the current call service of the subscription user is less than the upper limit of the number of call service times. If no, go to step 203; if yes, go to step 204.

Receiving the relevant call service data means that if the call forwarding service is performed, the MSC receives data such as the forwarding number and location information sent from the HLR; if the CT service is performed, the MSC receives the user number to be transferred. .

Step 203: Reject the call of the calling service.

In this step, the method for rejecting the call of the call service is: After the MSC sends the call service overrun notification to the base station controller, the MSC removes the call.

Step 204: Perform call processing of the call service, and change the number of records.

Here you can set the number of records for each additional call service plus one. Further, the method further includes: when releasing a call service, decrementing the number of records in the counting module by one.

The above process can

In order to make the above method flow more clear, the following describes the flow of the method for different services.

Taking the unconditional forward in the early call forwarding as an example, the specific method of completing the method by the MSC is explained. It is assumed that user A calls user B, user B is the called subscriber, and user B forwards the call to user C. 3 is a flowchart of a method for limiting the number of call services in an early call forwarding service. As shown in FIG. 3, MSC1 is the MSC of the called subscriber B; MSC2 is the subscriber C of the forwarded number provided by the called subscriber. The specific implementation of the MSC includes the following steps:

Step 301: The MSC1 presets an upper limit value of the number of allowed call services.

In this step, the upper limit of the number of allowed call services for allowing the user to perform call forwarding at the same time is preset in the MSC of the called user. The upper limit of the number of allowed calls for the call forwarding is generally determined by the operator according to actual needs. .

This step can be done by the setup module 101 in the MSC.

Step 302: The BSC sends a call request to the MSC1.

When User A calls User B, the BSC sends a call request to the MSC of the called User B, and the MSC responds to the BSC.

Step 303: The MSC1 sends a routing information request message to the HLR.

In this step, the MSC1 obtains the location information of the called user B from the HLR through the routing information confirmation message.

The receiving call request and sending routing information request messages in steps 302 and 303 may be completed by the calling module 104 in the MSC.

Step 304: The HLR determines whether the called user signs a contract and satisfies the condition for triggering the forwarding. In this embodiment, the called user B is a subscription user and satisfies the condition of triggering the forwarding, and the HLR returns the forwarding data to the MSC1 through the routing information confirmation message.

In this step, the HLR will return the forwarding data only when the called user is the contracted user and the condition for triggering the forwarding is satisfied.

The trigger forwarding condition is a forwarding condition pre-registered by the called user. For example: If the user pre-registers the unconditional forwarding, as long as there is a call to the subscription user, the forwarding condition is triggered, and the call forwarding is directly performed; When a busy call is registered, when the subscriber receives a call and is unable to connect when it is busy, the forwarding condition is triggered and the call forward is performed.

Receiving the forward data in this step can be completed by the call module 104 in the MSC.

Step 305: The MSC1 determines whether the number of current call service records forwarded by the called user is less than a preset upper limit of the number of allowed call services; if not, step 306 is performed; if yes, step 308 is performed.

The number of records of the current call service forwarded by the called user can be stored as a variable.

In the database of the MSC, for example, the database of the VLR, after receiving the forward data, the MSC queries the database of the number of stored records to query the number of times of the current call service forwarded by the called user, and determines whether the number of records is less than a preset number. The upper limit of the number of allowed call services.

This step can be completed by the decision module 102 in the MSC.

Step 306: The MSC1 sends a notification of the number of forwarded calls to the BSC.

Generally, in this step, the MSC1 sends a call forwarding overrun notification to the calling user in the manner of sending the number of forward rotation times to exceed the notification tone.

Step 307: The MSC1 removes the call sent by the BSC and ends the process.

Steps 306 and 307 may be performed by the call module 104 in the MSC.

Step 308: The MSC1 makes a forward call, and sends the call to the MSC2; and the MSC1 increments the called user's forward record number by one.

Further, after releasing an ongoing forward call, MSC1 will call the called party. The number of forwarded records by the user is reduced by 1.

In this step, the forward call can be completed by the calling module 104 in the MSC; adding or subtracting 1 to the number of records can be completed by the counting module 103 in the MSC.

The following takes the late call forwarding as an example to illustrate the specific process of completing the method through the MSC. Assume that User A calls User B, User B is the called subscriber, and User B forwards the call to User C. 4 is a flow chart of a method for limiting the number of call services in a forward call forwarding service. As shown in FIG. 4, MSC1 is the MSC of the called subscriber B; MSC2 is the MSC of the subscriber C of the forwarded number provided by the called subscriber. . The specific implementation includes the following steps:

Step 401: The MSC1 presets an upper limit value of the number of allowed call services.

In this step, the upper limit of the number of call forwardings that the user is allowed to perform at the same time is set in the MSC of the called user. The upper limit of the number of allowed call services is generally determined by the operator according to actual needs.

Step 402: The BSC sends a call request to the MSC1.

Step 403: The MSC1 sends a routing information request message to the HLR.

In this step, the MSC1 obtains the location information of the called user B through the routing information request message to the HLR.

Step 404: The HLR returns a routing message of the location of the called user by using the routing information confirmation message. In this step, the returned routing information confirmation message only includes the routing information of the called user location, and does not include the forwarding data.

Step 405: MSC1 performs call connection. If the called user cannot be connected, step 406 is performed; if the called party is connected, the user 建立 establishes a call directly with the called user, and the process ends.

Step 406: The MSC1 determines whether the user has subscribed to the forwarding information. If yes, go to step 407; if no, go to step 411. The determining whether the user has signed the forwarding information is to determine whether the called user has previously registered the call forwarding service and the forwarding data. The forwarding data can be a forwarding number.

Step 407: The MSC1 sends a forward information request message to the HLR, and obtains forward data of the called user from the HLR.

Step 408: The HLR returns the forwarded data of the called user to the MSC1 by using the forward information confirmation message.

Step 409: The MSC determines whether the number of times of the current call service forwarded by the called user is less than a preset upper limit of the number of allowed call services. If no, step 410 is performed; if yes, step 412 is performed.

The number of records of the current call service forwarded by the called user can be stored as a variable in the database of the MSC, for example, a database of the VLR. After receiving the forward data, the MSC queries the called user to forward the database to the number of times of storing the record. The number of records of the current call service, and whether the number of records is less than the preset upper limit of the number of allowed call services.

Step 410: The MSC sends a notification of the number of forwarded calls to the BSC.

Generally, in this step, the MSC1 sends a call forwarding overrun notification to the calling user, generally in the manner of sending the forwarding number overrun notification tone.

Step 411: The MSC1 removes the call sent by the BSC and ends the process.

The MSC1 removes the call sent by the BSC by sending a teardown call message.

Step 412: The MSC1 performs a forward call, and sends the call to the MSC2; and the MSC1 increments the called user's forward record number by one.

Further, after releasing a forward call, the MSC service 1 decrements the number of forwarded records of the called user by one.

Since some users have special requirements for the pre-transmission service, for example, the secretary or clerk in charge of the front desk may need to transfer a large number of calls every day, and can apply to become a legitimate user of the forwarding service, when the operator verifies that the user is not abusing the service. After the criminals, you can The user is set to an advanced legal user and is saved as a subscription data in the VLR. In the foregoing process shown in FIG. 3 and FIG. 4, before the MCS server determines whether the number of times of recording of the current call service forwarded by the called user is less than the preset limit of the number of allowed call services, the MCS server may first save from the VLR. In the subscription data, it is determined whether the called user is an advanced legal user. If yes, the forward call can be directly sent, and the call is sent to the MSC2 without determining the current number of calls; if the called user is not a senior legal user, Then, the step of determining whether the number of records of the current call service forwarded by the called user is less than a preset limit of the number of allowed call services is continued.

The method for limiting the number of call services in the call forwarding service by the MSC is described in detail in the embodiment of the present invention by using the early call forwarding and the late call forwarding. The following is an example of the adoption of the method. The method for limiting the number of call services in the CT service by the MSC is described in detail. User A establishes a call with user B. User A has the right of CT. During the call between user A and user B, user A calls user C to transfer the call to user C, so that user B and user C establish a connection. Figure 5 is a flow chart of a method for limiting the number of call traffic in a CT service. As shown in FIG. 5, MSC1 is the MSC of the subscriber A, and MSC2 is the server of the subscriber C. The process includes the following steps:

Step 501: The MSC1 presets an upper limit value of the number of allowed call services.

In this step, the upper limit of the number of CTs that the user is allowed to perform simultaneously is set in the MSC of the call forwarding user. The upper limit of the number of allowed call services is generally determined by the operator according to actual needs.

Step 502: The BSC sends the MSC1 the subscriber number to be transferred.

When user A dials the number of user C during the call with user B, the MSC of user A receives the user number of user C sent by the BSC.

Step 503: The MSC1 determines whether the user has the CT authority, and determines whether the number of current call service records transferred by the contracted user is less than a preset upper limit of the number of allowed call services. If the two are the same, step 506 is performed; if the user does not have the CT authority, step 505 is performed; if the number of records of the current call service transferred by the subscriber is not less than the preset upper limit of the number of allowed call services, Go to step 504.

Step 504: The MSC1 sends a notification of the number of forwarded calls to the BSC.

Step 505: The MSC removes the call and ends the process.

The call sent by the MSC1 to the BSC is performed by sending a DISCONNECT message.

Step 506: MSC1 performs CT, and sends a call to MSC2; and MSC1 adds 1 to the number of CT records of the called user.

Further, after releasing a CT call, MSC1 decrements the number of forwarded records of the subscriber by one.

Similarly, because some users have special requirements for CT services, for example, the secretary or clerk in charge of the front desk may need to transfer a large number of calls every day, and can apply to become a legitimate user of the CT service. When the operator verifies that the user is not abusing the After the business criminals, the user can be set as an advanced legal user and saved as a subscription data in the VLR. In the foregoing process shown in FIG. 5, before the MCS server determines whether the number of times of recording the current call service of the called user CT is less than the preset limit of the number of allowed call services, the MCS server may firstly use the subscription data saved by the VLR. Determine whether the called user is an advanced legal user. If yes, you can directly perform CT and send the call to MSC2 without determining the current number of calls. If the called user is not a senior legal user, continue to perform the judgment. The step of calling the user CT to record the current number of call services is less than the preset limit of the number of allowed call services.

In addition, the method of limiting the number of call services in the call forwarding and CT process can be implemented on the HLR, and the upper limit of the number of allowed call forwarding times is set on the HLR, which is counted and controlled by the HLR. Taking the unconditional forward in the early call forwarding as an example, the flow of the method of limiting the number of calls of the call forwarding service on the HLR is described. 6 is a flow chart of a method of limiting the number of call services in a call forwarding service on an HLR. As shown in FIG. 6, the specific implementation includes the following steps:

Step 601: The upper limit of the number of allowed call services is preset in the HLR.

This step can be completed by the setting module 101 in the HLR.

Step 602: The BSC sends a call request to the MSC 1.

When User A calls User B, the BSC sends a call request to the MSC of the called User B, and the MSC will respond to the BSC.

Step 603: The MSC 1 sends a routing information request message to the HLR.

In this step, the MSC 1 obtains the location information of the called user B from the HLR through the routing information request message.

In this step, the HLR receiving routing information request message may be completed by the transmitting and receiving module 105 in the HLR.

Step 604: The HLR determines whether the called user is subscribed and meets the condition of triggering the forwarding, so that the forwarded number of the called user can be obtained. In this embodiment, the called user B is the subscription user and satisfies the condition of triggering the forwarding; The HLR determines whether the number of records of the current call service forwarded by the called user is less than a preset upper limit of the number of allowed call services. If yes, step 608 is performed; if no, step 605 is performed.

This step can be done by the decision module 102 in the HLR.

Step 605: The HLR confirms to return a negative cause value to the MSC1 by sending routing information. This step can be completed by the transmitting and receiving module 105 in the HLR.

Step 606: The MSC1 sends a notification of the number of forwarded calls to the BSC.

Step 607: The MSC1 removes the call sent by the BSC and ends the process.

Step 608: The HLR returns the obtained forwarding number to the MSC1 by using the routing information confirmation message. According to.

The forwarding data is the user number of the user C.

This step can be completed by the transmitting and receiving module 105 in the HLR.

Step 609: The MSC1 makes a forward call, and sends the call to the MSC2; and the HLR adds 1 to the called user's forward record number.

Adding 1 to the called user's forwarding record as described in this step can be completed by the counting module 103 in the HLR.

Further, after releasing a forward call, the MSC may send a call release notification to the HLR, and after receiving the call release notification, the HLR reduces the number of forwarded records of the subscribed user by one.

The call release notification may be an extended service operation message including a subscription subscriber identity, a call operation indication. After receiving the extended service operation message, the HLR may acquire call release information according to the call operation indication included therein. In addition, the routing information request message sent by the MSC to the HLR may also use the extended service operation message. From the extended service operation message, the HLR may obtain the subscription user identifier and the service indication information, and obtain the information according to the subscription user identifier and the service indication information. The subscription data of the subscriber is checked, and the number of times of the current call service of the subscriber is checked, so as to determine whether the number of times the subscriber is currently calling the service is less than the upper limit of the number of allowed call services. The subscription user identifier may be an IMSI number of the subscription user. After performing the corresponding operation, the HLR may reply to the MSC with an extended service operation confirmation message. The extended service operation message and the extended service operation confirmation message can adopt the structure shown in Table 1.

Table 1

Parameter

Operation information element value / description

Extended Service Operation Invoke Id MAP Signaling Dialog ID

IMSI number service indication of IMSI user 0 No answer forwarding 1 Busy forward

Business operation indication 0 business initiation

1 business release

Extended business operation confirmation Business operation result 0 Business operation acceptance

1 Business operation rejection Similarly, the judgment of the number of CT records of the called user can be implemented on the HLR, and will not be described here.

In the flow shown in FIG. 6, similarly, since some users have special requirements for the forwarding service, for example, the secretary or clerk in charge of the front desk may need to transfer a large number of calls every day, and can apply to become a legitimate user of the CT service. After the operator verifies that the user is not a criminal who abuses the service, the user can be set as an advanced legal user and stored in the HLR as subscription data. In the foregoing process shown in FIG. 6, before the HLR determines whether the number of times of recording of the current call service forwarded by the called user is less than the preset limit of the number of allowed call services, the HLR may firstly use the subscription data saved by the HLR. Determine whether the called user is an advanced legal user. If yes, you can directly forward the call and send the call to MSC2 without determining the current number of calls. If the called user is not a senior legal user, continue to perform the judgment. The step of the number of times the current call service is forwarded by the called user is less than the preset limit of the number of allowed call services.

The system provided by the embodiment of the present invention is described in detail in the following two manners: First, as shown in FIG. 7, the system includes: an MSC 701, and an HLR 702;

The MSC 701 sets the upper limit of the number of call services, and after obtaining the forwarding data sent by the HLR 702, determines whether the number of times of the current call service of the subscription user is less than the upper limit of the number of allowed call services, and if not, removes the current call service; Yes, the current call service is performed according to the forward data, and the number of records is increased by one;

After receiving the routing information request sent by the MSC 701, the HLR 702 sends an MSC 701 to the MSC 701. Send forward data.

After the call service ends, the MSC 701 is also used to reduce the number of records by one.

In this case, the implementation of the MSC can be implemented by an MSC provided by the embodiment of the present invention.

Second, the system includes: an MSC 701, and an HLR 702;

After receiving the call request, the MSC 701 sends a routing information request to the HLR 702; after receiving the call service data sent by the HLR 702, performs the current call service according to the call service data; when receiving the negative cause value sent by the HLR 702, the current current service is removed. call.

HLR 702, setting the upper limit of the number of call service; after obtaining the call service data, determining whether the number of records of the current call service of the subscriber is less than the upper limit of the number of allowed call services, and if not, sending a negative cause value to the MSC 701; Send forward data to MSC 701 and increment the number of records by one.

The negative cause value and call service data may be sent to the MSC through a routing information request confirmation message.

The MSC 701 is further configured to send a call release notification to the HLR 702 after the call service ends.

The HLR 702 is further configured to reduce the number of times the call service is recorded by one after receiving the call release notification.

The above two cases can be used for both the call forwarding service and the CT service. When the call forwarding service is used, the call service data is a call forwarding number; when it is a CT service, the call service data is used. The number of the user to be transferred to.

FIG. 8 is a flowchart of a method for modifying subscription data according to an embodiment of the present invention. The modified subscription data may be a call forwarding number signed by a user, a user number to be transferred, and the like. In this embodiment, the call forwarding number is modified as an example. As shown in FIG. 8, the method includes the following steps: Step 801: After receiving the request for modifying the forwarding number, the MSC sends an instruction corresponding to the request to the HLR.

The instruction corresponding to the request may be referred to as an instruction by the user to modify the forwarding number.

Step 802: The HLR queries the number of times the forwarding number corresponding to the user is modified according to the instruction.

Step 803: The HLR determines whether the number of times the forwarding number is modified reaches a preset maximum number of modifications. If yes, step 804 is performed. Otherwise, step 805 is performed.

Step 804: The HLR returns the rejected information to the user through the MSC, and ends the operation. Step 805: The HLR increases the number of times the forwarding number is modified, and performs a corresponding forwarding number modification operation.

In this embodiment, when the current forwarding number is successfully modified, the HLR may also return information for prompting the modification succeeding through the MSC.

FIG. 9 is a structural diagram of a system for modifying subscription data according to an embodiment of the present invention. The system includes: an MSC 900 and an HLR 910.

The MSC 900 is configured to send, to the HLR 910, a user modification subscription data command corresponding to the request, after receiving the request for the user to modify the subscription data.

The HLR 910 is configured to: after receiving the user modification subscription data command sent by the MSC 900, determine whether the number of times the subscription data modification of the user reaches a preset maximum modification number, and if not, modify the subscription of the user according to the modified subscription data instruction. Data, and increase the number of subscription data modifications for that user.

The modified subscription data may be a call forwarding number, a call forwarding number, or the like.

The HLR 910 is further configured to: when it is determined that the number of times the subscription data modification of the user does not reach the preset maximum number of modifications, return the information that the modification is rejected to the MSC 900.

At this time, the MSC 900 is further configured to forward the information of the refusal modification returned by the HLR 910 to the user. The HLR 910 includes: a receiving module 911, a determining module 912, a modifying module 913, and a counting module 914.

The receiving module 911 is configured to receive a user modify the subscription data instruction.

The determining module 912 is configured to determine, after the receiving module 911 receives the user modify the subscription data command, whether the number of times the subscription data modification of the user reaches a preset maximum number of modification times, and if not, send a modification notification to the modification module 914, and The counting module 913 sends a count notification.

The modifying module 913 is configured to modify the subscription data of the user after receiving the modification notification. The counting module 914 is configured to increase the number of subscription data revisions of the user after receiving the counting notification.

It can be seen from the above that the embodiment of the present invention increases the step of determining whether the number of records of the current call service of the subscriber is less than the upper limit of the number of allowed call services before the call forwarding operation is performed, thereby limiting the subscription users to simultaneously perform in a short time. The call business effectively limits the use of the call business to defraud criminals.

The embodiment of the present invention can further limit the step of determining whether the current number of subscription data modification times of the user reaches a preset maximum modification number before modifying the user subscription data, thereby limiting frequent modification of the subscription data by the user, and effectively limiting the use of the criminals. Calling business fraud.

Claims

Claim

A method for processing a call service, characterized in that the upper limit of the number of allowed call services is preset; the method further comprises the following steps:

After the call service data is obtained, it is determined whether the current number of records of the call service of the subscription user is less than the upper limit of the number of allowed call services, and if so, the connection call service is processed, and the record of the current call service of the subscription user is increased. The number of times, otherwise, the current call service is removed.

The method according to claim 1, wherein the call service is a call forwarding service, and the call service data is a call forwarding number;

Alternatively, the call service is a call transfer CT service, and the call service data is a subscriber number to be transferred.

The method according to claim 1, wherein the method further comprises: reducing the number of recordings of the current call service of the subscription user after the call service ends.

The method according to claim 3, wherein the number of times of increasing the current call service of the subscription user is 1 for the number of times the current call service of the subscription user is added;

The number of times of reducing the current call service of the subscription user is one less than the number of records of the current call service of the subscription user.

The method according to claim 1, wherein the step of determining whether the current number of records of the call service of the subscription subscriber is less than the upper limit of the number of allowed call services is performed by the MSC or the HLR.

The method according to claim 1, wherein before determining whether the number of times of recording of the current call service of the subscription subscriber is less than the upper limit of the number of allowed call services, the method further includes: determining whether the subscription subscriber is For advanced legal users, if yes, directly The step of performing the connection call service processing, if not, performing the step of determining whether the number of times the current subscription service of the subscription service is less than the upper limit of the number of allowed call services.

A mobile switching center MSC, wherein the MSC comprises: a setting module, configured to set an upper limit value of the number of times the subscription user allows the call service, and send the upper limit value of the number of allowed call services to the determining module;

a judging module, configured to respectively receive an upper limit value of the allowed call service number from the setting module and a record number of the current call service from the counting module, and after receiving the trigger notification sent by the calling module, determine the number of times the subscription user currently calls the service Whether it is less than the upper limit of the number of allowed call services, if not, sending a rejection notification to the calling module, and if so, sending a call notification to the calling module;

a counting module, configured to receive a record notification sent by the determining module, increase a number of times of recording the call service, and send the number of records to the determining module;

The calling module is configured to send a trigger notification to the determining module after receiving the call service data; after receiving the rejection notification sent by the determining module, the current calling service is removed, and after receiving the call notification sent by the determining module, according to the received The call service data connects to the current call service.

The MSC according to claim 7, wherein the calling module is further configured to: when releasing the call service, send a release notification to the determining module;

The determining module, after receiving the release notification from the calling module, sends a subtraction notification to the counting module;

The counting module reduces the number of recordings of the call service after receiving the notification of the subtraction sent by the determining module.

A home location register (HLR), wherein the HLR comprises: a setting module, configured to set an upper limit value of a number of times the subscription user allows a call service, and The upper limit of the number of allowed call services is sent to the judging module;

a judging module, configured to respectively receive an upper limit value of the allowed call service number from the setting module and a record number of the current call service from the counting module, and after receiving the trigger notification of the sending and receiving module, determine the number of times of the current calling service of the signing user Whether it is less than the upper limit of the number of allowed call services, if not, sending a negative notification to the sending and receiving module; if yes, sending a confirmation notification to the sending and receiving module, and sending a recording notification to the counting module;

a counting module, configured to: after receiving the record notification sent by the determining module, increase the number of times of recording the call service; and send the number of records to the determining module;

The sending and receiving module is configured to: after receiving the call service data, send a trigger notification to the determining module; after receiving the negative notification sent by the determining module, send a negative cause value; and after receiving the confirmation notification sent by the determining module, send the calling service data.

The HLR according to claim 9, wherein the sending and receiving module is further configured to: after receiving the call release notification sent by the MSC, send a countdown notification to the counting module;

The counting module is further configured to reduce the number of recordings of the call service after receiving the subtraction notification.

11. A system for processing a call service, the system comprising:

The MSC is configured to set an upper limit value of the number of allowed call services, and after obtaining the forwarding data, determine whether the number of times of the current call service of the subscription user is less than the upper limit of the number of allowed call services, and if not, remove the current call service; Yes, according to the forward data, the current call service is connected, and the number of times of the call service is increased;

The HLR is configured to send forward data to the MSC after receiving the routing information request.

The system according to claim 11, wherein the MSC is configured to reduce the number of call service records after the call service ends.

13. A system for processing a call service, the system comprising: The MSC, after receiving the call service data sent by the HLR, performs the current call service according to the call service data; when receiving the negative cause value sent by the HLR, the current call is removed;

The HLR is configured to set an upper limit value of the number of allowed call services. After obtaining the call service data, determine whether the number of records of the current call service of the subscription user is less than the upper limit of the number of allowed call services, and if not, send a negative cause value to the MSC. If yes, the call service data is sent to the MSC, and the number of times the call service is recorded is increased.

The system according to claim 13, wherein the MSC is further configured to send a call release notification to the HLR after the call service ends;

The HLR is further configured to reduce the number of times the call service is recorded after receiving the call release notification.

A method for modifying subscription data, the method comprising: after receiving an instruction for modifying a subscription data by a user, determining whether the number of modification times of the subscription data corresponding to the user reaches a preset maximum modification number, and if not, Modifying the subscription data of the user according to the modified subscription data instruction, and increasing the number of subscription modification of the user, and if yes, refusing to modify the subscription data.

The method according to claim 15, wherein the increasing the number of subscription modification times of the user is to increase the number of subscription modification times of the user by one.

The method according to claim 15, wherein when the subscription data modification is successful, information indicating that the modification is successful is returned to the user.

18. The method of claim 15, wherein the subscription data comprises: a call forwarding number or a call forwarding number.

19. A system for modifying subscription data, the system comprising:

The MSC is configured to send a user modify subscription data command to the HLR after receiving the request for modifying the subscription data by the user; The HLR 910 is configured to: after receiving the user modification subscription data command sent by the MSC, determine whether the number of times the subscription data modification of the user reaches a preset maximum modification number, and if not, modify the user according to the modified subscription data instruction. Sign the data, and increase the number of subscription data modification of the user. If yes, refuse to modify the subscription data.

20. An HLR, characterized in that the HLR comprises:

a receiving module, configured to receive a user modify a subscription data instruction;

The determining module is configured to: after the receiving module receives the user modify the subscription data command, determine whether the number of times the subscription data modification of the user reaches a preset maximum modification number, and if not, send a modification notification to the modification module, and count The module sends a count notification;

The modification module is configured to modify the subscription data of the user after receiving the modification notification, and the counting module is configured to increase the number of subscription data revisions of the user after receiving the counting notification.