CN109005544B - False caller identification method and device - Google Patents

False caller identification method and device Download PDF

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Publication number
CN109005544B
CN109005544B CN201710418242.6A CN201710418242A CN109005544B CN 109005544 B CN109005544 B CN 109005544B CN 201710418242 A CN201710418242 A CN 201710418242A CN 109005544 B CN109005544 B CN 109005544B
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Prior art keywords
calling
call
user
calling user
domain
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CN109005544A (en
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邵京
杜海涛
粟栗
彭晋
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/12—Detection or prevention of fraud

Abstract

The invention discloses a false caller identification method and a false caller identification device, wherein the method comprises the following steps: SCP sends UDR message including identification information of calling user to HSS according to calling user; receiving a UDA message sent by a HSS, wherein the UDA message comprises IMS information and T-ADS information corresponding to a calling subscriber; if the corresponding IMS of the calling user signs and registers and the T-ADS supports the PS domain, determining that the calling user is in the PS domain, inquiring the busy-idle state of the calling user from the S-CSCF registered by the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user is a false calling; otherwise, determining that the calling user is in the CS domain, inquiring the busy-idle state of the calling user from the HLR, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false calling. To provide a false caller identification scheme supporting both CS domain and PS domain.

Description

False caller identification method and device
Technical Field
The invention relates to the technical field of communication, in particular to a false caller identification method and a false caller identification device.
Background
The calling number display service, namely the caller identification service, is a basic function of a telephone network, and the wide use of the calling number display service brings great convenience to users. However, some lawbreakers, using new network technologies or existing vulnerabilities of gateway devices, artificially modify the calling number to a social public service number such as 110, an operator service number such as 10086 or other user numbers, and perform illegal activities such as harassment and telephone fraud to users. Therefore, effective measures are urgently needed to be taken to monitor the calling number so as to intercept false calling numbers.
However, the prior art identification process for false callers includes: a calling Subscriber initiates a call, a gateway triggers a Service Control Point (SCP), the SCP sends an Arbitrary Time Inquiry (ATI) message to a Home Location Register (HLR), the HLR receives the ATI message and sends a Provide Subscriber Information (PSI) message to a Visitor Mobile Switching Center (VMSC)/Visitor Location Register (VLR) to acquire the idle state of the calling Subscriber, and determines whether the calling Subscriber is a false calling Subscriber by determining whether the idle state of the calling Subscriber is idle, wherein the ATI message and the PSI message both contain identification Information of the calling Subscriber.
However, this method can only be applied to calls in a single Circuit Switched (CS) domain, and cannot be applied to calls in a Packet Switched (PS) domain, or calls in both PS and CS domains. For calls in the PS domain or calls in the presence of both the PS domain and the CS domain can only be connected, so that lawless persons harass the user by using false calling numbers, implement telephone fraud and the like, loss is caused to the user, and user experience is influenced. How to support the identification of false callers in the CS domain and the PS domain at the same time becomes a problem to be solved urgently.
Disclosure of Invention
The invention provides a false caller identification method and a false caller identification device, which are used for simultaneously supporting the identification of false callers in a CS domain and a PS domain.
The invention discloses a false calling identification method, which is applied to a Service Control Point (SCP), and comprises the following steps:
according to a calling subscriber of a call, sending a User Data Request (UDR) message including identification information of the calling subscriber to a Home Subscriber Server (HSS);
receiving a user data response (UDA) message sent by a Home Subscriber Server (HSS), wherein the UDA message comprises information of an IP Multimedia Subsystem (IMS) corresponding to the calling user and information of terminating access domain selection (T-ADS);
if the IMS corresponding to the calling user signs and registers and the T-ADS supports a Packet Switching (PS) domain, determining that the calling user is in the PS domain, inquiring a busy-idle state of the calling user from a serving call session control function (S-CSCF) registered by the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false call;
otherwise, determining that the calling user is in a Circuit Switching (CS) domain, inquiring a Home Location Register (HLR) about the busy-idle state of the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false calling.
Further, before sending the UDR message including the identification information of the calling subscriber to the HSS, the method further includes:
judging whether the blacklist contains the identification information of the calling subscriber;
if not, the subsequent steps are carried out.
Further, before the S-CSCF registered with the calling subscriber queries the busy-idle state of the calling subscriber, the method further includes:
sending an information location request (LIR) message to the HSS, wherein the LIR message comprises the identification information of the calling subscriber;
receiving an information location response (LIA) message sent by the HSS, wherein the LIA message comprises information of an S-CSCF;
and determining the S-CSCF registered by the calling user according to the information of the S-CSCF contained in the LIA message.
Further, before determining that the calling party is behind the CS domain and if the busy-idle status of the calling party is idle, determining that the calling party of the call is a false calling, the method further includes:
inquiring the location of the calling subscriber from the HLR;
judging whether the position of the calling party is within a preset position range or not according to the position information of the calling party returned by the HLR;
if yes, the subsequent steps are carried out.
Further, before the sending, according to a calling subscriber of a call, a UDR message including identification information of the calling subscriber to a HSS, the method further includes:
receiving a call triggered by an gateway office, wherein the call is triggered by the gateway office after an external gateway office call reaches the gateway office; or
After the call is successfully established, judging whether the current time is the false caller identification time according to a set time interval, and if so, carrying out the subsequent steps.
Further, if it is determined that the calling party of the call is a false caller, the method further comprises:
and sending a release message containing the identification information of the call to a gateway office to enable the gateway office to release the call.
The invention discloses a false calling identification device, which is applied to a Service Control Point (SCP), and comprises:
a sending module, configured to send a user data request UDR message including identification information of a calling subscriber to a home subscriber server HSS according to the calling subscriber of a call;
a receiving identification module, configured to receive a user data response UDA message sent by an HSS, where the UDA message includes information of an IP multimedia subsystem IMS corresponding to the calling user and information of terminating access domain selection T-ADS; if the IMS corresponding to the calling user signs and registers and the T-ADS supports the PS domain, determining that the calling user is in the PS domain and triggering a first determining module, otherwise, determining that the calling user is in the CS domain and triggering a second determining module;
a first determining module, configured to query a serving call session control function S-CSCF registered with the calling subscriber for a busy-idle state of the calling subscriber, and if the busy-idle state of the calling subscriber is idle, determine that the calling subscriber of the call is a false call;
and the second determining module is used for inquiring the busy-idle state of the calling subscriber from a Home Location Register (HLR), and if the busy-idle state of the calling subscriber is idle, determining that the calling subscriber of the call is a false calling subscriber.
Further, the apparatus further comprises:
and the judging module is used for judging whether the blacklist contains the identification information of the calling party or not, and if the judgment result is negative, the sending module is triggered.
Further, the first determining module is further configured to send an information location request LIR message to the HSS, where the LIR message includes identification information of the calling subscriber; receiving an information location response (LIA) message sent by the HSS, wherein the LIA message comprises information of an S-CSCF; and determining the S-CSCF registered by the calling user according to the information of the S-CSCF contained in the LIA message.
Further, the second determining module is further configured to query the HLR for the location of the calling subscriber; judging whether the position of the calling party is within a preset position range or not according to the position information of the calling party returned by the HLR; if yes, determining the calling user of the call as a false calling if the busy-idle state of the calling user is idle.
Further, the apparatus further comprises:
the receiving and judging module is used for receiving a call triggered by the gateway exchange, wherein the call is triggered by the gateway exchange after the call of the external gateway exchange reaches the gateway exchange; or after the call is successfully established, judging whether the current time is the false caller identification time according to a set time interval, and if so, triggering the sending module.
Further, the apparatus further comprises:
and the processing module is used for sending a release message containing the identification information of the call to a gateway if the calling user of the call is determined to be a false calling, so that the gateway releases the call.
The invention discloses a false caller identification method and a false caller identification device, wherein the method comprises the following steps: SCP sends user data request UDR message including identification information of calling user to home subscriber server HSS according to calling user of calling; receiving a user data response (UDA) message sent by a Home Subscriber Server (HSS), wherein the UDA message comprises information of an IP Multimedia Subsystem (IMS) corresponding to the calling user and information of terminating access domain selection (T-ADS); if the IMS corresponding to the calling user signs and registers and the T-ADS supports a Packet Switching (PS) domain, determining that the calling user is in the PS domain, inquiring a busy-idle state of the calling user from a serving call session control function (S-CSCF) registered by the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false call; otherwise, determining that the calling user is in a Circuit Switching (CS) domain, inquiring a Home Location Register (HLR) about the busy-idle state of the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false calling. In the embodiment of the invention, whether the calling user of the call is in the PS domain is judged by judging whether the IMS corresponding to the calling user signs a contract and registers and whether the T-ADS supports the PS domain, if so, the calling user of the call is determined to be in the PS domain, the busy-idle state of the calling user is inquired by the S-CSCF, otherwise, the calling user of the call is determined to be in the CS domain, the busy-idle state of the calling user is inquired by the HLR, and if the busy-idle state of the calling user is idle, the calling user of the call is determined to be a false calling, so that the false calling identification in the CS domain and the PS domain is simultaneously supported, the loss of the user is avoided, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a false caller identification process provided in embodiment 1 of the present invention;
fig. 2 is a schematic diagram illustrating determining a domain where a calling subscriber is located according to a UDA message sent by a HSS according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a false caller identification process in call setup according to embodiment 5 of the present invention;
fig. 4 is a schematic diagram of a false caller identification process after call setup according to embodiment 5 of the present invention;
fig. 5 is a schematic structural diagram of a false caller id device according to embodiment 7 of the present invention;
fig. 6 is a schematic diagram of a false caller identification network architecture according to embodiment 8 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
fig. 1 is a schematic diagram of a false caller identification process provided in an embodiment of the present invention, where the process includes:
s101: according to a calling Subscriber of a call, a User Data Request (UDR) message including identification information of the calling Subscriber is sent to a Home Subscriber Server (HSS).
S102: receiving a User Data Answer (UDA) message sent by the HSS, wherein the UDA message includes information of an IP Multimedia Subsystem (IMS) corresponding to the calling subscriber and information of Terminating Access Domain Selection (T-ADS).
The false calling identification method provided by the embodiment of the invention is applied to SCP, the SCP generally comprises a high-performance microcomputer, a medium-sized or large-sized computer and a large-sized real-time high-speed database, is used for storing user data and service logic, and has the main function of starting different service logic aiming at various calls to realize the calls of various intelligent services. The HSS is an important component of the control layer in the IMS, and contains a profile of a user for authentication and authorization of the user identity.
According to a calling party of a call, SCP sends a UDR message including identification information of the calling party to HSS, and receives a UDA message sent by HSS, wherein the UDA message includes information of IMS and information of T-ADS corresponding to the calling party. Specifically, the IMS information corresponding to the calling subscriber includes whether the IMS corresponding to the calling subscriber signs up and registers, and whether a Terminating Access Domain Selection (T-ADS) supports the PS Domain.
S103: and judging whether the IMS corresponding to the calling user signs a contract and registers, and whether the T-ADS supports the PS domain, if so, determining that the calling user is in the PS domain, and performing S104, otherwise, determining that the calling user is in the CS domain, and performing S105.
Specifically, whether the IMS corresponding to the calling user is subscribed may be represented by a value of an IP Multimedia Public Identity (IMPU) in the UDA message, where a value of 5001 for the IMPU indicates that the IMS is not subscribed, and a value of 2001 for the IMPU indicates that the IMS is subscribed; whether the IMS corresponding to the calling User is registered or not can be represented by a value of an IP multimedia subsystem User State (IMS User State) in the UDA message, wherein the IMS User State value is 0 to represent that the IMS is not registered, and the IMS User State value is 1 or 2 or 3 to represent that the IMS is registered; whether the T-ADS corresponding to the calling subscriber supports the PS domain or not can be represented by the value of the T-ADS in the UDA message, wherein the value of the T-ADS is 1 to represent that the PS domain is supported, and the value of the T-ADS is 0 or 2 to represent that the PS domain is not supported.
When the domain where the calling user is located is determined, the determination is carried out according to the judgment results of whether the IMS signs a contract or not, whether the IMS signs a register or not and whether the T-ADS supports the PS domain or not, if yes, the calling user is determined to be in the PS domain, and if any one of the IMS signs a contract or not, the T-ADS supports the PS domain, the calling user is determined to be in the CS domain.
Fig. 2 is a schematic diagram for determining a domain where a calling subscriber is located according to a UDA message sent by an HSS according to an embodiment of the present invention. Specifically, the UDA message returned by the HSS comprises information of IMPU, IMS User State and T-ADS, wherein if the value of IMPS is 5001, the IMS is not signed, the value of IMPS is 2001, the IMS is signed, the value of IMS User State is 0, the IMS is not registered, the value of IMS User State is 1, 2 or 3, the IMS is registered, the T-ADS is 1, the T-ADS supports the PS domain, can be expressed as IMS-VOICE-OVER-PS-SUPPORTED, T-ADS is 0 to express that T-ADS does not support PS domain, can be expressed as IMS-VOICE-OVER-PS-NOT-SUPPORTED, TADS is 2 means that T-ADS does NOT support PS domain, may be denoted as IMS-VOICE-OVER-PS-supported-UNKNOWN, whether the TADS supports the PS domain or not is unknown under the condition, and for convenience of subsequent identification, the T-ADS is determined not to support the PS domain; the information whether the IMS is registered is Any, which indicates that whether the IMS is registered is not limited, and the information of the T-ADS is Any, which indicates that whether the IMS supports the PS domain is not limited.
When the UDA message returned by the HSS is case 1: the IMS does not sign a contract, the domain where the calling user is located is determined to be a CS domain, and the domain for inquiring the busy and idle state of the calling user is determined to be the CS domain; when the UDA message returned by the HSS is case 2: the IMS is signed and not registered, the domain where the calling user is located is determined to be a CS domain, and the domain for inquiring the busy and idle state of the calling user is determined to be the CS domain; when the UDA message returned by the HSS is case 3: IMS has signed and registered, T-ADS does not support PS domain, confirm the domain that the caller belongs to is CS domain at present, carry on caller busy and free state inquiry domain for CS domain; when the UDA message returned by the HSS is case 4: IMS has signed and registered, T-ADS supports PS domain, confirms the domain where the calling user locates at is PS domain, the domain that inquires the busy/idle state of the calling user is PS domain; when the UDA message returned by the HSS is case 5: in other cases, that is, in cases other than the above case 1, case 2, case 3, and case 4, it is determined that the domain where the calling user is currently located is the CS domain, and the domain where the calling user is in the busy-idle state query is the CS domain.
S104: and inquiring a Serving Call Session Control Function (S-CSCF) registered by the calling subscriber about the busy-idle state of the calling subscriber, and if the busy-idle state of the calling subscriber is idle, determining that the calling subscriber of the Call is a false Call.
Specifically, the SCP sends a first MESSAGE (MESSAGE) containing the identification information of the calling subscriber to the S-CSCF registered by the calling subscriber, so as to query the busy-idle state of the calling subscriber, receive a second MESSAGE containing the busy-idle state of the calling subscriber replied by the S-CSCF, and determine that the calling subscriber of the call is a false calling if the busy-idle state of the calling subscriber is idle, indicating that the calling subscriber is not in call access or call connection.
And if the busy-idle state of the calling subscriber is busy, determining that the calling subscriber is not a false calling subscriber.
S105: and inquiring the busy-idle state of the calling subscriber from an HLR, and if the busy-idle state of the calling subscriber is idle, determining that the calling subscriber of the call is a false calling subscriber.
Specifically, an ATI message containing the identification information of the calling subscriber is sent to an HLR, the HLR sends a PSI message to a VMSC/VLR after receiving the ATI message to acquire the state of the calling subscriber, and sends a response (PSI _ ask) message which is replied by the VMSC/VLR and provides subscriber information to an SCP, wherein the PSI _ ask message comprises the busy and idle state of the calling subscriber, and the SCP determines that the calling subscriber of the call is a false calling subscriber according to the busy and idle state of the calling subscriber if the busy and idle state of the calling subscriber is idle, which indicates that the calling subscriber is not in call access or call connection.
And if the busy-idle state of the calling subscriber is busy, determining that the calling subscriber is not a false calling subscriber.
In the embodiment of the invention, whether the calling user of the call is in the PS domain is judged by judging whether the IMS corresponding to the calling user signs a contract and registers and whether the T-ADS supports the PS domain, if so, the calling user of the call is determined to be in the PS domain, the busy-idle state of the calling user is inquired by the S-CSCF, otherwise, the calling user of the call is determined to be in the CS domain, the busy-idle state of the calling user is inquired by the HLR, and if the busy-idle state of the calling user is idle, the calling user of the call is determined to be a false calling, so that the false calling identification in the CS domain and the PS domain is simultaneously supported, the loss of the user is avoided, and the user experience is improved.
Example 2:
in order to improve the efficiency of false caller identification, on the basis of the above embodiment, in an embodiment of the present invention, before sending the UDR message including the identification information of the calling subscriber to the HSS, the method further includes:
judging whether the blacklist contains the identification information of the calling subscriber;
if not, the subsequent steps are carried out.
In the embodiment of the present invention, a blacklist is set in advance for a false caller frequently used by a lawbreaker, for example: a caller with a caller number 12346, similar to the civic chief hot line 12345, is added to the blacklist and a caller with a caller number 10056, similar to the mobile services hot line 10086, is added to the blacklist.
Specifically, before sending the UDR message including the identification information of the calling subscriber to the HSS, it is determined whether a blacklist includes the identification information of the calling subscriber, if the blacklist includes the identification information of the calling subscriber, it is indicated that the calling subscriber of the call is a false calling, and if the blacklist does not include the identification information of the calling subscriber, a subsequent step of sending the UDR message including the identification information of the calling subscriber to the HSS is performed.
Example 3:
in order to improve the accuracy of false caller identification, on the basis of the foregoing embodiments, in an embodiment of the present invention, before the S-CSCF registered with the calling party queries the busy/idle status of the calling party, the method further includes:
sending an information location request (LIR) message to the HSS, wherein the LIR message comprises the identification information of the calling subscriber;
receiving an information location response (LIA) message sent by the HSS, wherein the LIA message comprises information of an S-CSCF;
and determining the S-CSCF registered by the calling user according to the information of the S-CSCF contained in the LIA message.
The SCP may store information of the S-CSCF registered by the calling subscriber for each calling subscriber, but in order to reduce the amount of data stored in the SCP, in an embodiment of the present invention, the SCP does not store information of the S-CSCF registered by the calling subscriber, the SCP sends, to the HSS, an LIR message including identification information of the calling subscriber before querying the S-CSCF for a busy/idle state of the calling subscriber, receives, sent by the HSS, an LIA message including information of the S-CSCF registered by the calling subscriber, and determines, according to the information of the S-CSCF included in the LIA message, the S-CSCF registered by the calling subscriber. Wherein the information of the S-CSCF contained in the LIA message may be an IP address, a physical address, etc. of the S-CSCF.
Example 4:
on the basis of the foregoing embodiments, in an embodiment of the present invention, to improve accuracy of false caller identification, before determining that a caller is behind a CS domain and if a busy/idle state of the caller is idle, determining that the caller of a call is a false caller, the method further includes:
inquiring the position of the calling subscriber from an HLR;
judging whether the position is within a preset position range or not;
if yes, the subsequent steps are carried out.
In the embodiment of the present invention, the preset position range is determined according to the service range of the SCP, and when the calling party of the call is not within the service range of the SCP, there may be a situation that the calling party performs forwarding or call forwarding, and at this time, although the calling party is calling, the busy-idle state corresponding to the calling party may still be idle, and thus the calling party is determined to be a false calling party.
In order to guarantee the rights and interests of the users, false caller identification is not carried out on the calls corresponding to the calling users which are not in the preset position range. For example: and if the SCP is a China mobile SCP and the service range corresponding to the SCP is in China, the preset position range aiming at the SCP is in China, and the calling of the calling user, which is not in China, is not identified by the false calling.
Example 5:
in order to further ensure the accuracy of false caller identification and improve user experience, in the embodiment of the present invention, not only can the false caller identification be performed during call setup, but also the false caller identification can be performed after call setup, therefore, on the basis of the above embodiments, before sending the UDR message including the identification information of the caller to the HSS according to the caller of the call in the embodiment of the present invention, the method further includes:
receiving a call triggered by an gateway office, wherein the call is triggered by the gateway office after an external gateway office call reaches the gateway office; or
After the call is successfully established, judging whether the current time is the false caller identification time according to a set time interval, and if so, carrying out the subsequent steps.
Specifically, for a call in the process of establishing, namely after a call of an external gateway office reaches an intergateway office, the intergateway office triggers a call to an SCP, and the SCP identifies a false calling for the call.
Fig. 3 is a schematic diagram of a false caller identification process in call setup according to an embodiment of the present invention, where the process includes:
s301: and receiving a call triggered by the gateway office, wherein the call is triggered by the gateway office after the call of the outer gateway office reaches the gateway office.
S302: and judging whether the blacklist contains the identification information of the calling party of the call, if not, performing S303, and if so, performing S308.
S303: sending a UDR message including the identification information of the calling subscriber to the HSS.
S304: and receiving a UDA message sent by the HSS, wherein the UDA message comprises the information of the IMS corresponding to the calling subscriber and the information of the T-ADS.
S305: and judging whether the IMS corresponding to the calling user signs a contract and registers, and whether the T-ADS supports the PS domain, if so, determining that the calling user is in the PS domain, and S306 is carried out, and if any one is not, determining that the calling user is in the CS domain, and S307 is carried out.
S306: and inquiring the busy-idle state of the calling user from the S-CSCF registered by the calling user, judging whether the busy-idle state of the calling user is idle, if so, carrying out S308, and if not, carrying out S309.
S307: and inquiring the busy and idle state of the calling subscriber from the HLR, judging whether the busy and idle state of the calling subscriber is idle, if so, performing S308, and if not, performing S309.
S308: determining that the calling user of the call is a false caller.
S309: and connecting the call.
In addition, aiming at the call after the call is successfully established, the SCP judges whether the current time is the false caller identification time or not according to the set time interval, and at each false caller identification time, the false caller identification is carried out aiming at the call.
Fig. 4 is a schematic diagram of a false caller identification process after call setup, where the process includes:
s401: after the call is successfully established, judging whether the current time is the false caller identification time according to a set time interval, if so, judging whether a blacklist contains the identification information of the calling user of the call, if not, performing S402, and if so, performing S407.
S402: sending a UDR message including the identification information of the calling subscriber to the HSS.
S403: and receiving a UDA message sent by the HSS, wherein the UDA message comprises the information of the IMS corresponding to the calling subscriber and the information of the T-ADS.
S404: and judging whether the IMS corresponding to the calling user signs a contract and registers, and whether the T-ADS supports the PS domain, if so, determining that the calling user is in the PS domain, and performing S405, and if not, determining that the calling user is in the CS domain, and performing S406.
S405: and inquiring the busy-idle state of the calling user from the S-CSCF registered by the calling user, judging whether the busy-idle state of the calling user is idle, if so, carrying out S407, and if not, carrying out S401.
S406: and inquiring the busy and idle state of the calling subscriber from the HLR, judging whether the busy and idle state of the calling subscriber is idle, if so, performing S407, and if not, performing S401.
S407: determining that the calling user of the call is a false caller.
Example 6:
in order to ensure the user's rights and prevent lawless persons from harassing the user with a false caller number, implementing telephone fraud, etc., on the basis of the above embodiments, in the embodiment of the present invention, if it is determined that the caller of the call is a false caller, the method further includes:
and sending a release message containing the identification information of the call to a gateway office to enable the gateway office to release the call.
Specifically, if the calling user of the call is determined to be a false calling, a release message containing the identification information of the call is sent to a gateway, so that the gateway releases the call.
Example 7:
fig. 5 is a schematic structural diagram of a false caller id device according to an embodiment of the present invention, where the device includes:
a sending module 51, configured to send a user data request UDR message including identification information of a calling subscriber to a home subscriber server HSS according to the calling subscriber of a call;
a receiving and identifying module 52, configured to receive a user data response UDA message sent by the HSS, where the UDA message includes information of an IP multimedia subsystem IMS corresponding to the calling user and information of terminating access domain selection T-ADS; if the IMS corresponding to the calling user signs and registers and the T-ADS supports the PS domain, determining that the calling user is in the PS domain and triggering a first determining module, otherwise, determining that the calling user is in the CS domain and triggering a second determining module;
a first determining module 53, configured to query a serving call session control function S-CSCF registered with the calling subscriber for a busy-idle state of the calling subscriber, and if the busy-idle state of the calling subscriber is idle, determine that the calling subscriber of the call is a false call;
a second determining module 54, configured to query a home location register HLR for the busy-idle state of the calling subscriber, and if the busy-idle state of the calling subscriber is idle, determine that the calling subscriber of the call is a false call.
The device further comprises:
and the judging module 55 is configured to judge whether the blacklist includes the identification information of the calling subscriber, and if the judgment result is negative, trigger the sending module.
The first determining module 53 is further configured to send an information location request LIR message to the HSS, where the LIR message includes identification information of the calling subscriber; receiving an information location response (LIA) message sent by the HSS, wherein the LIA message comprises information of an S-CSCF; and determining the S-CSCF registered by the calling user according to the information of the S-CSCF contained in the LIA message.
The second determining module 54 is further configured to query the HLR for the location of the calling subscriber; judging whether the position of the calling party is within a preset position range or not according to the position information of the calling party returned by the HLR; if yes, determining the calling user of the call as a false calling if the busy-idle state of the calling user is idle.
The device further comprises:
a receiving and judging module 56, configured to receive a call triggered by an gateway office, where the call is triggered by the gateway office after an external gateway office call reaches the gateway office; or after the call is successfully established, judging whether the current time is the false caller identification time according to a set time interval, and if so, triggering the sending module.
The device further comprises:
and a processing module 57, configured to send a release message including identification information of the call to a gateway if it is determined that the calling party of the call is a false call, so that the gateway releases the call.
Example 8:
fig. 6 is a schematic diagram of a false caller id network architecture according to an embodiment of the present invention, in which a gateway sends a call accessed to the gateway to an SCP, the SCP determines whether a calling party of the call is in a blacklist, if not, the SCP sends a UDR message including identification information of the calling party to an HSS according to the calling party of the call, and receives a UDA message sent by the HSS, where the UDA message includes information of an IMS and information of a T-ADS corresponding to the calling party, if the IMS signs and registers corresponding to the calling party and the T-ADS supports a PS domain, it is determined that the calling party is in the PS domain, a busy state of the calling party is queried by an S-CSCF registered to the calling party, otherwise, it is determined that the calling party is in the CS domain, the HLR is queried, and if the busy state of the calling party is idle, it is determined that the calling party of the call is false, and sending a release message including the call identification information to the gateway office to inform the gateway office to release the call. In addition, the management platform can perform data analysis on the false caller identified by the SCP, generate a statistical form for the manager to check, and generate a blacklist according to a blacklist generation rule formulated by the manager, for example: and adding the calling user corresponding to the false calling with the occurrence frequency larger than the set frequency threshold into a blacklist.
The invention discloses a false caller identification method and a false caller identification device, wherein the method comprises the following steps: SCP sends user data request UDR message including identification information of calling user to home subscriber server HSS according to calling user of calling; receiving a user data response (UDA) message sent by a Home Subscriber Server (HSS), wherein the UDA message comprises information of an IP Multimedia Subsystem (IMS) corresponding to the calling user and information of terminating access domain selection (T-ADS); if the IMS corresponding to the calling user signs and registers and the T-ADS supports a Packet Switching (PS) domain, determining that the calling user is in the PS domain, inquiring a busy-idle state of the calling user from a serving call session control function (S-CSCF) registered by the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false call; otherwise, determining that the calling user is in a Circuit Switching (CS) domain, inquiring a Home Location Register (HLR) about the busy-idle state of the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false calling. In the embodiment of the invention, whether the calling user of the call is in the PS domain is judged by judging whether the IMS corresponding to the calling user signs a contract and registers and whether the T-ADS supports the PS domain, if so, the calling user of the call is determined to be in the PS domain, the busy-idle state of the calling user is inquired by the S-CSCF, otherwise, the calling user of the call is determined to be in the CS domain, the busy-idle state of the calling user is inquired by the HLR, and if the busy-idle state of the calling user is idle, the calling user of the call is determined to be a false calling, so that the false calling identification in the CS domain and the PS domain is simultaneously supported, the loss of the user is avoided, and the user experience is improved.
For the system/apparatus embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A false caller identification method, applied to a service control point SCP, the method comprising:
according to a calling subscriber of a call, sending a User Data Request (UDR) message including identification information of the calling subscriber to a Home Subscriber Server (HSS);
receiving a user data response (UDA) message sent by a Home Subscriber Server (HSS), wherein the UDA message comprises information of an IP Multimedia Subsystem (IMS) corresponding to the calling user and information of terminating access domain selection (T-ADS);
if the IMS corresponding to the calling user signs and registers and the T-ADS supports a Packet Switching (PS) domain, determining that the calling user is in the PS domain, inquiring a busy-idle state of the calling user from a serving call session control function (S-CSCF) registered by the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false call;
otherwise, determining that the calling user is in a Circuit Switching (CS) domain, inquiring a Home Location Register (HLR) about the busy-idle state of the calling user, and if the busy-idle state of the calling user is idle, determining that the calling user of the call is a false calling;
before the S-CSCF registered with the calling party queries the busy/idle status of the calling party, the method further includes:
sending an information location request (LIR) message to the HSS, wherein the LIR message comprises the identification information of the calling subscriber;
receiving an information location response (LIA) message sent by the HSS, wherein the LIA message comprises information of an S-CSCF;
and determining the S-CSCF registered by the calling user according to the information of the S-CSCF contained in the LIA message.
2. The method of claim 1, wherein prior to said sending a UDR message to the HSS that includes the identity information of the calling subscriber, the method further comprises:
judging whether the blacklist contains the identification information of the calling subscriber;
if not, the subsequent steps are carried out.
3. The method of claim 1, wherein said determining that said calling user is after a CS domain, before determining that said calling user of said call is a false call if a busy-idle status of said calling user is idle, further comprises:
inquiring the location of the calling subscriber from the HLR;
judging whether the position of the calling party is within a preset position range or not according to the position information of the calling party returned by the HLR;
if yes, the subsequent steps are carried out.
4. A method according to any of claims 1-3, wherein before sending a UDR message comprising identification information of the calling subscriber to the HSS in dependence of the calling subscriber of the call, the method further comprises:
receiving a call triggered by an gateway office, wherein the call is triggered by the gateway office after an external gateway office call reaches the gateway office; or
After the call is successfully established, judging whether the current time is the false caller identification time according to a set time interval, and if so, carrying out the subsequent steps.
5. The method of claim 4, wherein if the calling user of the call is determined to be a false caller, the method further comprises:
and sending a release message containing the identification information of the call to a gateway office to enable the gateway office to release the call.
6. A false caller identification device, applied to a service control point, SCP, said device comprising:
a sending module, configured to send a user data request UDR message including identification information of a calling subscriber to a home subscriber server HSS according to the calling subscriber of a call;
a receiving identification module, configured to receive a user data response UDA message sent by an HSS, where the UDA message includes information of an IP multimedia subsystem IMS corresponding to the calling user and information of terminating access domain selection T-ADS; if the IMS corresponding to the calling user signs and registers and the T-ADS supports the PS domain, determining that the calling user is in the PS domain and triggering a first determining module, otherwise, determining that the calling user is in the CS domain and triggering a second determining module;
a first determining module, configured to query a serving call session control function S-CSCF registered with the calling subscriber for a busy-idle state of the calling subscriber, and if the busy-idle state of the calling subscriber is idle, determine that the calling subscriber of the call is a false call;
a second determining module, configured to query a home location register HLR for a busy-idle state of the calling subscriber, and if the busy-idle state of the calling subscriber is idle, determine that the calling subscriber of the call is a false call;
the first determining module is further configured to send an information location request (LIR) message to the HSS, where the LIR message includes identification information of the calling subscriber; receiving an information location response (LIA) message sent by the HSS, wherein the LIA message comprises information of an S-CSCF; and determining the S-CSCF registered by the calling user according to the information of the S-CSCF contained in the LIA message.
7. The apparatus of claim 6, wherein the apparatus further comprises:
and the judging module is used for judging whether the blacklist contains the identification information of the calling party or not, and if the judgment result is negative, the sending module is triggered.
8. The apparatus of claim 6, wherein the second determining module is further configured to query the HLR for the location of the calling subscriber; judging whether the position of the calling party is within a preset position range or not according to the position information of the calling party returned by the HLR; if yes, determining the calling user of the call as a false calling if the busy-idle state of the calling user is idle.
9. The apparatus of any of claims 6-8, further comprising:
the receiving and judging module is used for receiving a call triggered by the gateway exchange, wherein the call is triggered by the gateway exchange after the call of the external gateway exchange reaches the gateway exchange; or after the call is successfully established, judging whether the current time is the false caller identification time according to a set time interval, and if so, triggering the sending module.
10. The apparatus of claim 9, wherein the apparatus further comprises:
and the processing module is used for sending a release message containing the identification information of the call to a gateway if the calling user of the call is determined to be a false calling, so that the gateway releases the call.
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