CN111405680B

CN111405680B - Call tracing method, device and storage medium

Info

Publication number: CN111405680B
Application number: CN201910000539.XA
Authority: CN
Inventors: 杜海涛; 江为强; 粟栗; 张峰; 彭晋
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-01-02
Filing date: 2019-01-02
Publication date: 2022-01-25
Anticipated expiration: 2039-01-02
Also published as: CN111405680A

Abstract

The embodiment of the invention discloses a method, equipment and a storage medium for call tracing, wherein the method is applied to calling side network equipment and comprises the following steps: when a calling request of a calling terminal is received, acquiring the position information of the calling terminal; adding the position information of the calling terminal to a preset field of the call request; and sending the call request added with the position information of the calling terminal to a called side. Therefore, the position information of the calling terminal is borne in the calling request, the position of the calling terminal can be quickly positioned, and the calling tracing operation efficiency is improved.

Description

Call tracing method, device and storage medium

Technical Field

The present invention relates to communications technologies, and in particular, to a method, a device, and a storage medium for call tracing.

Background

With the continuous expansion of mobile communication services, a phenomenon of fraud through a mobile communication network is increasing, and this phenomenon becomes one of the important causes of user complaints. Meanwhile, in the whole call connection process, a plurality of network element devices are needed, the call source cannot be tracked, and lawless persons using the fraud phone are difficult to find by law enforcement departments in China, so that the fraud phone is rampant.

In order to meet the needs of network operation and maintenance, mobile operators deploy various signaling monitoring systems, analyze call signaling, and find abnormal situations such as call drop, load increase, and the like. The signaling monitoring system provides a means for calling signaling records, but because the system has larger types, is constructed in different provinces, has no linkage between the provinces, and can not correlate the calling records of the calling party and the called party in different provinces, the calling records of the calling party and the called party from end to end can not be formed in the calls of the different provinces, and the calling tracing difficulty is large.

Disclosure of Invention

In order to solve the above technical problems, embodiments of the present invention are expected to provide a method, a device, and a storage medium for call tracing, which can quickly locate a position of a calling terminal and improve the efficiency of call tracing operation.

The technical scheme of the invention is realized as follows:

the embodiment of the invention provides a call tracing method, which is applied to calling side network equipment and comprises the following steps:

when a calling request of a calling terminal is received, acquiring the position information of the calling terminal;

adding the position information of the calling terminal to a preset field of the call request;

and sending the call request added with the position information of the calling terminal to a called side.

In the above scheme, the location information includes at least one of: first position information and second position information; wherein the location range of the second location information representation is a partial location range within the location range of the first location information representation.

In the foregoing solution, when the location information only includes the first location information, the method further includes: receiving a source tracing instruction sent by a called side; responding to the tracing instruction, and determining second position information of the calling terminal; and sending the second position information to a called side.

The embodiment of the invention also provides another call tracing method which is applied to the called side network equipment and comprises the following steps:

acquiring a call request added with position information of a calling terminal;

and analyzing the call request, and acquiring the position information of the calling terminal from a preset field of the call request.

In the foregoing solution, the analyzing the call request and obtaining the location information of the calling terminal from a preset field of the call request includes: analyzing the call request, and acquiring first position information of the calling terminal from a preset field of the call request; determining second position information of the calling terminal based on the first position information; or, the call request is analyzed, and the second position information of the calling terminal is obtained from a preset field of the call request.

In the foregoing solution, the determining the second location information of the calling terminal based on the first location information includes: sending a source tracing instruction of the calling terminal to calling side network equipment corresponding to the first position information; and receiving second position information which is sent by the calling side network equipment and determined in response to the tracing instruction.

The embodiment of the invention provides a calling side network device, which comprises: a first processor and a first transceiver; wherein the content of the first and second substances,

the first processor is used for acquiring the position information of the calling terminal when receiving a calling request of the calling terminal; adding the position information of the calling terminal to a preset field of the call request;

the first transceiver is used for sending the call request added with the position information of the calling terminal to a called side.

In the above scheme, when the location information only includes the first location information, the first transceiver is further configured to receive a source tracing instruction sent by the called side; the first processor is further configured to determine second location information of the calling terminal in response to the tracing instruction; the first transceiver is further configured to send the second location information to a called side.

The embodiment of the invention provides called side network equipment, which comprises: a second processor and a second transceiver; wherein the content of the first and second substances,

the second transceiver is used for acquiring the call request added with the position information of the calling terminal;

and the second processor is used for analyzing the call request and acquiring the position information of the calling terminal from a preset field of the call request.

In the foregoing solution, the second processor is specifically configured to parse the call request, and obtain first location information of the calling terminal from a preset field of the call request; determining second position information of the calling terminal based on the first position information; or, the second processor is specifically configured to parse the call request, and obtain the second location information of the calling terminal from a preset field of the call request.

In the foregoing scheme, the second processor is specifically configured to control the second transceiver to send the source tracing instruction of the calling terminal to the calling side network device corresponding to the first location information; and receiving second position information which is sent by the calling side network equipment and determined in response to the tracing instruction.

The embodiment of the invention also provides another calling side network device, which comprises: a processor and a memory configured to store a computer program capable of running on the processor,

wherein the processor is configured to execute the steps of any of the methods applied to the calling side network device when running the computer program.

The embodiment of the invention also provides another called side network device, which comprises: a processor and a memory configured to store a computer program capable of running on the processor,

wherein the processor is configured to execute the steps of any of the methods applied to the called side network device when running the computer program.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of any one of the methods described in the foregoing.

By adopting the technical scheme, the position information of the calling terminal is borne in the calling request of the calling terminal, and after the called terminal and the calling terminal establish calling connection, the position information of the calling terminal can be quickly analyzed from the calling request of the calling terminal, the position of the calling terminal does not need to be determined by inquiring the calling record, and the calling tracing operation efficiency is improved. Particularly for cross-province call tracing, the problem that cross-province calls cannot form end-to-end call records between calling and called parties due to the fact that call records of the calling party and the called party in different provinces cannot be correlated is solved.

Drawings

Fig. 1 is a first flowchart of a call tracing method according to an embodiment of the present invention;

fig. 2 is a second flowchart of a call tracing method according to an embodiment of the present invention;

fig. 3 is a third flowchart of a call tracing method according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a first application scenario of call tracing according to an embodiment of the present invention;

fig. 5 is a diagram illustrating a second application scenario of call tracing according to an embodiment of the present invention;

fig. 6 is a diagram illustrating a third application scenario of call tracing according to an embodiment of the present invention;

fig. 7 is a diagram illustrating a fourth application scenario of call tracing according to an embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating a structure of a call tracing system according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a first component structure of a calling-side network device in an embodiment of the present invention;

fig. 10 is a second component structure diagram of the calling side network device in the embodiment of the present invention;

fig. 11 is a schematic diagram of a first component structure of a called-side network device according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a second component structure of the called-side network device in the embodiment of the present invention.

Detailed Description

So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

Example one

The embodiment of the invention provides a call tracing method, which is applied to network equipment at a calling side, and as shown in figure 1, the method comprises the following steps:

step 101: when a calling request of a calling terminal is received, acquiring the position information of the calling terminal;

step 102: adding the position information of the calling terminal into a preset field of the calling request;

step 103: and sending the call request added with the position information of the calling terminal to the called side.

Here, the execution subject of steps 101 to 103 may be a processor or a transceiver of the calling-side network device.

Here, the preset field may be an optional field in a standard protocol, for example, an Initial Address Message (IAM) of a Integrated Services Digital Network User Part (ISUP)/bearer Independent Call Control protocol (BICC) used for Call setup, where the Message includes a Location Number (Location Number) field recording an area Number of an area to which a Mobile Switching Center (MSC) belongs, the field is an optional field, and the field is filled with null by default; in order to support the acquisition of the Location information, the calling end office needs to add the Location Number field content forcibly, and the called province can acquire the local city Location of the calling party through the field.

In practical application, the position information includes at least one of the following items: first position information and second position information; wherein the location range of the second location information representation is a partial location range within the location range of the first location information representation.

That is, the range of the position indicated by the second position information is smaller than the range of the position indicated by the first position information, and the second position information has higher position indication accuracy. For example, the second location information may be cell information, base station information, and the like, where the calling terminal initiates a calling access. Such as cell ID, base station ID, area code of residence. The first location information may be a region, such as a county, a district, a city, a province, etc., where the calling terminal is located.

Here, when only the first location information is carried in the call request, the method further includes: receiving a source tracing instruction sent by a called side; responding to the tracing instruction, and determining second position information of the calling terminal; and sending the second position information to the called side.

That is to say, when the calling side network device can only send the first location information to the called side, the called side may also perform secondary tracing to the calling side, that is, send a tracing instruction to the calling side network device, so that the calling side network device queries the second location information of the calling terminal.

Here, the tracing instruction may include a calling terminal identification, a call time, call contents, and the like.

In practical applications, the location information may specifically include information of at least one network element device connected to the calling terminal.

That is to say, in the call connection process, the calling terminal needs to pass through a plurality of network element devices to establish call connection with the called terminal, so that information of at least one network element device connected with the calling terminal can be added to a preset field of the call request, and the position of the calling terminal can be determined based on the information of the network element device. For example, the network element device is a cell, and a coverage area of the cell is the location information of the calling terminal; the network element equipment is a base station, and the range covered by the base station is the position information of the calling terminal.

Example two

The embodiment of the invention provides a call tracing method, which is applied to called side network equipment, and as shown in fig. 2, the method comprises the following steps:

step 201: acquiring a call request added with position information of a calling terminal;

step 202: and analyzing the call request, and acquiring the position information of the calling terminal from a preset field of the call request.

Here, the execution subject of steps 201 to 202 may be a processor or a transceiver of the called-side network device.

Here, the preset field may be an optional field in a standard protocol, for example, an IAM message of an ISUP/BICC protocol used for call setup, where the IAM message includes a Location Number field, records an area code of a region to which the MSC belongs, and the field is an optional field, and is default to be filled with null; in order to support the acquisition of the Location information, the calling end office needs to add the Location Number field content forcibly, and the called province can acquire the local city Location of the calling party through the field.

Correspondingly, step 202 specifically includes: analyzing the call request, and acquiring first position information of the calling terminal from a preset field of the call request; or analyzing the call request, and acquiring the second position information of the calling terminal from a preset field of the call request.

After the called terminal obtains only the first location information of the calling terminal, the method further comprises: and determining second position information of the calling terminal based on the first position information.

Further, determining second location information of the calling terminal based on the first location information includes: sending a source tracing instruction of the calling terminal to calling side network equipment corresponding to the first position information; and receiving second position information determined by the response traceability instruction sent by the calling side network equipment.

Here, the tracing instruction may include a calling terminal identification, a call time, call contents, and the like. In practical application, if the call request can only carry the first location information, the second location information of the calling terminal needs to be further inquired on the calling side network device corresponding to the first location information according to the information such as the calling terminal identifier, the call time and the like.

Exemplarily, the calling terminal is located in province a, the called terminal is located in province B, and time is saved, because the call signaling records of provinces a and B cannot be associated, when it is determined that the calling terminal is located in province a through the first location information, the tracing instruction is sent to the network device of province a, and the network device of province a obtains the first location information of the calling terminal by querying the recorded call signaling based on the tracing instruction, as follows: cell identity or base station identity.

EXAMPLE III

To further illustrate the purpose of the present invention based on the above embodiments of the present invention, as shown in fig. 3, the call tracing method specifically includes:

step 301: when receiving a call request of a calling terminal, a calling side network device acquires the position information of the calling terminal.

The method for acquiring the position information of the calling terminal can comprise the following steps: the method includes acquiring Global Positioning System (GPS) Positioning information of a calling terminal, and acquiring information of at least one network element device connected with the calling terminal.

Step 302: and the calling side network equipment adds the position information of the calling terminal to a preset field of the call request.

Here, the calling side network device and the called side network device are both devices participating in call connection, and when the calling terminal dials the called terminal, the calling side network device receives a call request first, and adds the location information of the calling terminal to an optional field of a standard protocol, where the field may be a reserved field defined by the protocol, and carries the location information of the calling terminal through the field.

Step 303: the calling side network equipment sends a calling request added with the position information of the calling terminal to the called side.

Here, the calling side network device is further configured to record the call signaling, perform location tracing on the calling terminal when a tracing instruction is subsequently received, and feed back a tracing result to the called side network device.

Step 304: the called side network device acquires the call request added with the position information of the calling terminal.

Specifically, the location information includes at least one of: first position information and second position information; wherein the location range of the second location information representation is a partial location range within the location range of the first location information representation.

And the called side network equipment is used for analyzing the call request and acquiring the position information of the calling terminal from a preset field of the call request.

Here, step 305 is executed to acquire the first location information of the calling terminal, steps 305 to 307 are executed to acquire the second location information of the calling terminal, or step 308 is executed to acquire the second location information of the calling terminal.

It is understood that, when the location information includes only the first location information, the second location information may be indirectly obtained through the first location information, in addition to the first location information being directly obtained.

Step 305: and the called side network equipment analyzes the call request and acquires the first position information of the calling terminal from a preset field of the call request.

Step 306: and the called side network equipment sends the source tracing instruction of the calling terminal to the calling side network equipment corresponding to the first position information.

Step 307: and the called side network equipment receives second position information determined by the response traceability instruction sent by the calling side network equipment.

Step 308: and the called side network equipment analyzes the call request and acquires the second position information of the calling terminal from a preset field of the call request.

In order to further embody the call tracing method in the embodiment of the present invention, four call scenarios of call connection between the 2G network and the 4G network are given, including: 2G calling dials 2G called, 2G calling dials VoLTE called, VoLTE calling dials 2G called, VoLTE calling dials VoLTE called. For all four call scenarios, the network supports registration and delivery of the calling terminal location information.

Scene one 2G calling party dials 2G called party

As shown in fig. 4, a calling party in the 2G network of the external province establishes a call connection with a called party in the 2G network of the local province through a calling end office (MSC), a long-distance tandem office of the external province, a long-distance tandem office of the local province, and a called end office (MSC).

Here, users of the province and the province are connected to the 2G network, and the ISUP/BICC protocol IAM message used for call establishment in the 2G network includes a Location Number field, which records the area Number of the region to which the MSC belongs, the field is an optional field, and the field is filled to be empty by default; in order to support the acquisition of the Location information, the calling end office needs to add the Location Number field content forcibly, and the called province can acquire the local city Location of the calling party through the field. Here, the area code of the region to which the MSC belongs may be a telephone area code of a different city, for example, beijing 010, shanghai 020, or xi' an 029. Here, the prefecture location may be understood as the first location information or the second location information.

Scene two 2G calling party dialing VoLTE called party

As shown in fig. 5, a calling party in the 2G network of the external province establishes a call connection with a called party in the VoLTE network of the local province through a calling end office (MSC), a long distance tandem office of the external province, a long distance tandem office of the local province, a Media Gateway Control Function (MGCF) and a called end office (MSC).

Here, the calling party adopts an ISUP/BICC Protocol for the 2G network, the called party adopts a Session Initiation Protocol (SIP) Protocol for VoLTE, the ISUP/BICC Protocol is converted into the SIP Protocol through MGCF equipment, and the MGCF is a gateway for communication between a VoLTE user and the 2G user and is responsible for conversion between the ISUP/BICC Protocol and the SIP Protocol.

The calling terminal office (MSC) adds a Location Number field in the IAM message, the MGCF converts the IAM message into an INVITE message of the SIP protocol, and the content of the Location Number field contained in the INVITE message is unchanged.

Scene three VoLTE calling to dial 2G called

As shown in fig. 6, a calling party in the VoLTE network of the external province establishes a call connection with a called party in the 2G network of the local province through a calling party (SBC), an MGCF, a long distance tandem office of the external province, a long distance tandem office of the local province, and a called end office (MSC).

The calling party adopts SIP protocol, the called party adopts ISUP/BICC protocol, the SIP protocol is converted into ISUP/BICC protocol through MGCF equipment, the province of the calling party can be obtained through MGCF equipment, MGCF equipment carries MGCF address in the calling request, and the MGCF address is used for indicating the province of the calling party. After the province of the calling party is determined from the calling request, a signaling monitoring system of the province of the calling party further acquires the calling initiating position. Here, the province indicated by the MGCF address may be understood as the first location information.

Scene four VoLTE calling to VoLTE called

As shown in fig. 7, a calling subscriber in the VoLTE network of the external province establishes a call connection with a called subscriber in the VoLTE network of the local province through a calling Subscriber (SBC), a long-distance tandem office of the external province, a long-distance tandem office of the local province, and a called Subscriber (SBC).

The method comprises the steps that SIP protocol INVITE information used for call establishment comprises a P-Access-Network field, calling Access information can be obtained through the P-Access-Network field, for example, cell identification urtran-cell-id-3gpp initiated by a calling party is obtained, and the P-Access-Network field is an optional field; in order to support the acquisition of the position information, a calling party (SBC) forcibly adds the content of a urtran-cell-id-3gpp parameter, and a called province can acquire the cell to which the calling party belongs through the field. Here, the cell identity may be understood as second location information.

The embodiment of the invention adds the position information in the IAM message of the calling ISUP/BICC protocol or the INVITE message of the SIP protocol, so that the called province can acquire the information of the local city or the cell to which the calling belongs, and the tracing of the calling number is realized.

It should be noted that the call tracing method provided in the embodiment of the present invention is not limited to the above four communication scenarios, and the call tracing method in the embodiment of the present invention may be applied to call tracing operation after call connection is established between any same or different communication networks, that is, the purpose of call tracing is achieved by adding location information by using an optional field of a communication standard protocol.

To further illustrate the object of the present invention, based on the first embodiment of the present invention, when the call tracing method of the present invention is applied to a call tracing system, as shown in fig. 8, the call tracing system may include: a call tracing platform 81, network devices (including a province network device 82 and a province network device 83), and a network basic capability module (including a province network basic capability module 84 and a province network basic capability module 85).

The network basic capability module calls related network elements such as a second-Generation mobile phone communication technology (2-Generation wireless telephone technology, 2G) and a Voice over Long-Term Evolution (VoLTE) network required by bearer, and adds the calling location identifier by using related optional fields of a standard protocol.

The provincial network infrastructure module 84 specifically includes communication networks such as 2G, 3G, 4G, and 5G, and the provincial network infrastructure module 85 specifically includes communication networks such as 2G, 3G, 4G, and 5G. In the embodiment of the present invention, the communication network may be any form of network that is already applied, is to be applied, or may appear in the future, and the present invention is not particularly limited.

A user terminal a based on any communication network in the area of province a can initiate a call request to a user terminal B based on any communication network in the area of province B, and the position information of the user terminal a is carried in the call request. For example, a 2G user in province a initiates a call request to a 4G user in province B, and a 4G user in province a initiates a call request to a 2G user in province B. The existing network user can also be connected with the 5G network user after the future 5G application.

The main functions of the network device include the following:

(1) and recording the call request, wherein the call request comprises information such as a calling number, a called number, call time, a call position identifier and the like. For example, the calling number subscriber is located in province B, and the called number subscriber is located in province a.

(2) Analyzing the call request, including analyzing the Location area (also called as 'cell') according to the cell-id, analyzing the local city according to the Location Number parameter, and analyzing the province Number initiated by the calling according to the address of the MGCF.

(3) And the call tracing executing function is used for tracing the position of the tracing terminal number issued by the call tracing platform and feeding back the tracing result to the call tracing platform.

In practical application, the call tracing method can be applied to network equipment of various provinces.

The main functions of the call tracing platform include the following:

(1) the basic information of the fraud phone is recorded, including called number and province (complaining user), calling number (complaining user), complaining time, content, etc.

(2) And registering the user complaints and fraud numbers published by upper departments, and issuing a call tracing instruction to a platform of the province where the called party is located. For example, a called number user in province a complains the calling number to the call tracing platform, and the call tracing platform issues a call tracing instruction to the network device in province a, so that the network device in province a reports the tracing result of the calling number.

(3) Analyzing the tracing result of the province where the called party is located, recording the calling party tracing to the location area or the city, further sending a tracing instruction to the network equipment initiating the province by the calling party for the call tracing to the province, and feeding back the tracing result by the network equipment initiating the province by the calling party. For example, when the tracing result only indicates that the calling subscriber is located in province B, the call tracing platform sends query information such as the calling number to the network device in province B, so that the network device in province B reports the traced location area.

(4) And feeding back the tracing result to a relevant system or department.

In some embodiments, the call tracing method may also be applied to a call tracing platform.

Example four

Based on the same inventive concept, the embodiment of the invention also provides calling side network equipment. Fig. 9 is a schematic structural diagram of an electronic device in an embodiment of the present invention, and as shown in fig. 9, the calling-side network device 90 includes: a first processor 901 and a first transceiver 902; wherein the content of the first and second substances,

a first processor 901, configured to obtain location information of a calling terminal when receiving a call request of the calling terminal; adding the position information of the calling terminal to a preset field of the call request;

a first transceiver 902, configured to send a call request added with the location information of the calling terminal to a called side.

In some embodiments, the location information comprises at least one of: first position information and second position information; wherein the location range of the second location information representation is a partial location range within the location range of the first location information representation.

In some embodiments, when the location information only includes the first location information, the first transceiver 902 is further configured to receive a source tracing instruction sent by the called side; the first processor 901 is further configured to determine second location information of the calling terminal in response to the tracing instruction; the first transceiver 902 is further configured to send the second location information to the called side.

Based on the same inventive concept, an embodiment of the present invention further provides another calling-side network device, as shown in fig. 10, where the calling-side network device 100 includes: a processor 1001 and a memory 1002 configured to store a computer program capable of running on the processor;

wherein the processor 1001 is configured to execute the method steps in the previous embodiments when running the computer program.

Of course, in actual use, as shown in fig. 10, the respective components in the calling-side network device 100 are coupled together by a bus system 1003. It will be appreciated that the bus system 1003 is used to enable communications among these components. The bus system 1003 includes a power bus, a control bus, and a status signal bus, in addition to the data bus. But for clarity of illustration the various buses are labeled as bus system 1003 in figure 10.

EXAMPLE five

Based on the same inventive concept, an embodiment of the present invention further provides a called-side network device, as shown in fig. 11, where the called-side network device 110 includes: a second processor 1101 and a second transceiver 1102; wherein the content of the first and second substances,

the second transceiver 1102 is configured to acquire a call request added with location information of a calling terminal;

the second processor 1101 is configured to parse the call request, and obtain location information of the calling terminal from a preset field of the call request.

In some embodiments, the second processor 1101 is specifically configured to parse the call request, and obtain the first location information of the calling terminal from a preset field of the call request; determining second position information of the calling terminal based on the first position information;

or, the second processor 1101 is specifically configured to parse the call request, and obtain the second location information of the calling terminal from a preset field of the call request.

In some embodiments, the second processor 1101 is specifically configured to control the second transceiver 1102 to send the source tracing instruction of the calling terminal to the calling side network device corresponding to the first location information; and receiving second position information which is sent by the calling side network equipment and determined in response to the tracing instruction.

Based on the same inventive concept, an embodiment of the present invention further provides another called-side network device, as shown in fig. 12, where the called-side network device 120 includes: a processor 1201 and a memory 1202 configured to store a computer program capable of running on the processor;

wherein the processor 1201 is configured to execute the method steps in the aforementioned embodiments when running the computer program.

Of course, in actual practice, as shown in fig. 12, the respective components in the called-side network device 120 are coupled together by a bus system 1203. It will be appreciated that the bus system 1203 is used to implement the connection communication between these components. The bus system 1203 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for the sake of clarity the various busses are labeled in figure 12 as the bus system 1203.

In practical applications, the processor may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, and a microprocessor. It is understood that the electronic devices for implementing the above processor functions may be other devices, and the embodiments of the present application are not limited in particular.

The Memory may be a volatile Memory (volatile Memory), such as a Random-Access Memory (RAM); or a non-volatile Memory (non-volatile Memory), such as a Read-Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk (HDD), or a Solid-State Drive (SSD); or a combination of the above types of memories and provides instructions and data to the processor.

In an exemplary embodiment, the present application further provides a computer readable storage medium, on which a computer program is stored, the computer program being executed by a processor to perform the foregoing method steps.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention 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, optical storage, and the like) having computer-usable program code embodied therein.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. 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 block or blocks and/or flowchart 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 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 block or blocks and/or flowchart block or blocks.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A call tracing method is applied to a calling side network device, and is characterized by comprising the following steps:

when a call request of a calling terminal is received, acquiring first position information of the calling terminal;

adding the first position information of the calling terminal to a preset field of the call request;

sending a call request added with the first position information of the calling terminal to a called side;

receiving a source tracing instruction sent by a called side; responding to the tracing instruction, and determining second position information of the calling terminal; sending the second position information to a called side; the location range of the second location information representation is a partial location range within the location range of the first location information representation.

2. A call tracing method is applied to a called side network device, and is characterized in that the method comprises the following steps:

acquiring a call request added with position information of a calling terminal;

analyzing the call request, and acquiring first position information of the calling terminal from a preset field of the call request; sending a source tracing instruction of the calling terminal to calling side network equipment corresponding to the first position information; receiving second position information which is sent by the calling side network equipment and determined in response to the source tracing instruction; the location range of the second location information representation is a partial location range within the location range of the first location information representation.

3. A calling-side network device, characterized in that the calling-side network device comprises: a first processor and a first transceiver; wherein the content of the first and second substances,

the first processor is used for acquiring first position information of a calling terminal when receiving a calling request of the calling terminal; adding the first position information of the calling terminal to a preset field of the call request;

the first transceiver is used for sending a calling request added with first position information of the calling terminal to a called side;

the first transceiver is also used for receiving a source tracing instruction sent by a called side; the first processor is further configured to determine second location information of the calling terminal in response to the tracing instruction; the first transceiver is further used for sending the second position information to a called side; the location range of the second location information representation is a partial location range within the location range of the first location information representation.

4. A called-side network device, characterized in that the called-side network device includes: a second processor and a second transceiver; wherein the content of the first and second substances,

the second processor is configured to parse the call request, and obtain first location information of the calling terminal from a preset field of the call request;

the second processor is configured to control the second transceiver to send the source tracing instruction of the calling terminal to the calling side network device corresponding to the first location information; receiving second position information which is sent by the calling side network equipment and determined in response to the source tracing instruction; the location range of the second location information representation is a partial location range within the location range of the first location information representation.

5. A calling side network device, the device comprising: a processor and a memory configured to store a computer program capable of running on the processor,

wherein the processor is configured to perform the steps of the method of claim 1 when executing the computer program.

6. A called-side network apparatus, the apparatus comprising: a processor and a memory configured to store a computer program capable of running on the processor,

wherein the processor is configured to perform the steps of the method of claim 2 when executing the computer program.

7. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 2.