KR100684502B1 - Messages monitoring system in ss7 signaling network and method thereof - Google Patents

Abstract

A system and a method for monitoring a message in an SS7 signaling network are provided to capture and store messages transceived between network nodes using SS7 protocol in the SS7 signaling network and monitor the messages by using the stored messages, thereby not giving loads to an existing network node. A message collecting unit(310-1~310-n) collects messages, transmitted between network nodes of an SS7(Signaling System Number 7) signaling network, through a signaling link cable. A message file and decoding file generating unit(320) generates the collected message as an unprocessed data file, and generates decoding data files for decoding the unprocessed data file and a decoding file for analyzing the unprocessed data file. A message file storing and managing unit(330) stores and manages the unprocessed data file, decoding data files and decoding file generated in the message file and decoding file generating unit(320). If a confirmation request for a message at a specific time zone on a specific user(subscriber) is received from an operator terminal(400), the message file storing and managing unit(330) provides reconstructed data by decoding only messages on the specific subscriber at the specific time zone among the unprocessed data files by using the decoding file.

Description

Message monitoring system in SS7 signaling network and method

1 is a system configuration diagram schematically showing the overall configuration of a message monitoring system in an SS7 signal network according to a preferred embodiment of the present invention;

2 is a block diagram showing a configuration example of the monitoring server shown in FIG. 1;

3 is a flowchart illustrating a process of collecting data in a message monitoring system in an SS7 signal network according to an embodiment of the present invention;

FIG. 4 is a flowchart specifically showing the data processing process shown in FIG. 3;

FIG. 5 schematically illustrates the format of a raw data file in the form of raw data for storing messages collected in a message monitoring system in an SS7 signal network according to a preferred embodiment of the present invention; FIG.

FIG. 6 is a diagram showing a format for an example of an information file for the raw data file shown in FIG. 5;

FIG. 7 illustrates a format for an example of a transaction classification file generated to distinguish the same transaction message among data constituting the raw data file shown in FIG. 5;

FIG. 8 is a diagram illustrating a format for an example of a short decoding file for improving a query speed when inquiring about the raw data file shown in FIG. 5;

FIG. 9 is a diagram illustrating a format of an example of a decoding file for querying a raw data file illustrated in FIG. 5.

<Description of Symbols for Main Parts of Drawings>

20A, 20B: SS7 signal network connection equipment 30: Monitoring device

100_1 ~ 100_n: Operator remote terminal 200A, 200B: SS7 signal network connection equipment

300: monitoring server 310_1 ~ 310_n: message collector

320: message file generation unit 330: message file storage unit

340: Store message file decoding unit 350: Message analysis unit

360: web format conversion unit 400: system operator terminal

500: web server

The present invention relates to a message monitoring system and method in an SS7 signaling network for monitoring messages transmitted and received between network nodes using the SS7 protocol in a signaling system number 7 (SS7) signaling network.

SS7 is a communication protocol defined by the International Telecommunication Union (ITU) as a means of moving congestion of data traffic to a wireless or wired digital broadband network. This SS7 is No. Also known as 7, it features high-speed packet switching, out-of-band signal processing using SSP (Service Switching Point), STP (Signal Transfer Point), SCP (Service Control Point) and so on. Out-of-band signal processing does not occur on the same path that the signal travels, but a separate digital channel called a signal link is created, where messages are exchanged between network elements at speeds of 56 to 64 Kbps. These exchanged messages are called SS7 messages.

The SS7 signal hierarchy includes a message transfer part (MTP), a signaling connection control part (SCCP), an ISDN user part (ISP), a transaction capability application part; TCAP) and a telephone user part (TUP).

The message transmission unit (MTP) is an SS7 protocol layer consisting of three levels, MTP level 1 defines the physical, electrical, and functional characteristics of the digital signal link, MTP level 2 is the SS7 data link layer protocol flow control, It performs message order checking, error checking, retransmission, and so on. MTP Level 3 delivers messages between signaling points in the network and supports traffic control in case of congestion or failure.

The signal connection control unit (SCCP) allows transmission of various signals or data other than the normal line-compatible control signals. The ISDN user unit (ISUP) is a user unit (level 4) of the ITU-T SS7 signaling method considering the correspondence of various various services of the integrated information communication network (ISDN), and all call control signals are transmitted and received in a message format. The services supported by the ISDN user part are defined as two types of basic services and supplementary services. The basic services include circuit switched and packet switched connections, and the supplementary services include closed area connection, call-in identification, and incoming transmission.

The Transaction Capability Application Unit (TCAP) is a component handling function, a dialog handling function, and a transaction handling function for transferring information between application service elements on a signal point. Provide the function. The telephone user unit TUP shares functions related to processing of a telephone signal, control of a call exchange connection, and the like.

In the SS7 signaling network, in order to detect a call processing delay or failure between signal points, the signaling message between the two signal points is monitored through the signal message processing unit by inputting a call point and a destination code to be monitored at the signal relay point. A technology for monitoring call processing through a signal relay point in an SS7 signaling network by collecting a call processing related monitoring message and transmitting the same to a network management system and displaying the same to an operator is disclosed in Korean Patent Laid-Open Publication 2002-0051508. . This allows the operator to check for call processing delays or failures between two signal relays.

However, in the related art, rather than collecting all the messages from a specific signal transfer point (STP) of the SS7 signal network, only the call processing related messages are collected so that an operator can check the call processing delay or failure. There is a problem that an operator cannot check about problems that occur outside of call processing.

In addition, in the prior art, since the call processing related message is transmitted to the operator system, there is a problem that the operator can check the call processing delay or failure only in a limited place where the operator system is installed.

Accordingly, the present invention has been made in view of the above-described problems of the prior art, by capturing and storing messages transmitted and received between network nodes using the SS7 protocol in the SS7 signaling network and monitoring the stored messages by using the stored messages. An object of the present invention is to provide a message monitoring system and method in an SS7 signaling network that does not load an existing network node.

In addition, the present invention captures the messages transmitted and received between the network nodes using the SS7 protocol in the SS7 signaling network to store and manage in the form of raw data and to monitor using the raw data SS7 signal to enable high-reliability analysis Another object is to provide a message monitoring system and method in a network.

In addition, the present invention captures the messages transmitted and received between the network nodes using the SS7 protocol in the SS7 signaling network to store and manage the raw data in the form of raw data and to provide the storage managed raw data to the web so that the operator can access the web Another object is to provide a message monitoring system and method in the SS7 signaling network that enables monitoring at any place.

In order to achieve the above object, a message monitoring system in an SS7 signal network according to the present invention comprises: message collecting means for collecting messages transmitted between network nodes of an SS7 signal network through a signal link cable; A message file and decoding file generating means for making the collected messages into a raw data file, generating decoded data files for decoding the raw data file, and a decoded file for analyzing the raw data file. and; The raw data file, the decoded data files and the decoded file generated by the message file and the decoded file generating means are stored and managed, and when there is a confirmation request for a message of a specific time zone for a specific user (subscriber) from the operator terminal, the decoding is performed. And a message file storage management means for providing reconstruction data by decoding only messages for a specific subscriber in a specific time zone from among the raw data files using the file.

In addition, the message monitoring method in the SS7 signal network according to the present invention for achieving the above object comprises: a message collecting step of collecting messages transmitted between the network nodes of the SS7 signal network through a signal link cable; Generating the collected messages into a raw data file in a raw state, generating decoded data files for decoding the raw data file, and generating a decoded file for analyzing the raw data file; Wow; A storage management step of storing and managing the raw data file, the decoded data files, and the decoded file generated in the message file and decoded file generation step; When there is a request for confirmation of a message of a specific time zone to a specific user (subscriber) from an operator terminal, the decoding data is used to decode only messages for a specific subscriber of a specific time zone from the raw data file to provide analysis data. Characterized in that it comprises a providing step.

Hereinafter, a message monitoring system and method in an SS7 signal network according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a system configuration diagram schematically showing a message monitoring system in an SS7 signal network according to a preferred embodiment of the present invention.

As shown in the figure, the message monitoring system according to the present invention is SS7 signal network access equipment (200A, 200B) and the monitoring server 300, the system operator terminal 400, the web server 500 and the operator remote terminal 100_1 ~ 100_n).

The SS7 signal network connection device 200A, 200B may be, for example, a signal transfer point (STP) constituting the SS7 network, and in the present invention, between the SS7 signal network connection devices 200A, 200B. Connect the signal link cable to capture messages between these SS7 signal network connectors 200A and 200B. Here, in the present embodiment, only two SS7 signal network connection equipment (200A, 200B) is shown for simplicity of the drawings and shown as capturing a message in these SS7 signal network connection equipment (200A, 200B), the present invention In practice, the message is configured to capture messages from all network nodes existing between all SS7 signaling network access devices forming the SS7 signaling network. In addition, in the present invention, a link must be established in a cable between network nodes of the SS7 protocol and a clock must be synchronized with respect to each other's data.

The monitoring server 300 stores the message captured between the SS7 signal network connection devices 200A and 200B through the signal link cable in the form of raw data, and also decodes the analyzed data and the stored data that analyze the data. Decoded data is also generated and stored together. Detailed configuration and description thereof will be described later.

In addition, the system operator terminal 400 is an operator terminal operating the SS7 signal network, the operator using the system operator terminal 400 for the messages captured between the SS7 signal network connection equipment (200A, 200B) You can check everything.

In addition, the web server 500 provides a web service so that an operator (service operator) located at a remote site can check all contents of messages captured between the SS7 signal network access devices 200A and 200B through the Internet. It is a web server. The remote operator accesses the web server 500 using the Internet-enabled terminals 100_1 to 100_n to check the service problem (disturbance) requested by the user (subscriber), and then uses the SS7 signal network access equipment 200A and 200B. ), You can see all the contents of the message related to the user (subscriber) captured.

FIG. 2 is a block diagram showing a configuration example of the monitoring server in FIG. 1. As shown in the figure, the monitoring server 300 is a message collecting unit 310_1 ~ 310_n, a message file generating unit 320, a message file storage unit 330, a storage message file decoding unit 340 and the web It is configured to include a format conversion unit 360.

The message collecting units 310_1 to 310_n collect a captured message in real time by setting a link to a cable to all network nodes existing between all SS7 signal network access devices constituting the SS7 signal network. In this case, since the message collection units 310_1 to 310_n capture a message by setting a link to a cable to all network nodes, no overload occurs in the network nodes. The message collecting unit may collect all messages between all network nodes using the SS7 protocol by installing each network node of the SS7 signaling network.

The message file generator 320 generates all the messages received through the message collectors 310_1 to 310_n in the form of a file and transfers the generated message files to the message file storage 330. The message file includes a raw data file, a data recording information file (TMP file), a transaction demarcation file (XUDT file), and a short decoding file. These files will be described in detail below. Let's do it.

The message file storage unit 330 stores and manages each file generated by the message file generation unit 320 in a database form, and stores the storage file in response to a request of the storage message file decoding unit 340 described later. Transfer to the decoding unit 340.

The storage message file decoding unit 340 corresponds to an operator requesting confirmation of an SS7 message at a specific time for a specific user (subscriber) using the operator terminal 400 or the operator remote terminals 100_1 to 100_n. In order to be able to restore the SS7 message for a particular subscriber in a specific time zone, the prestored message files related to the SS7 message for a specific subscriber in a specific time zone are read from the message file storage unit 330 for the stored message files. Create a decode file.

The web format converter 360 may not process the message file storage manager 330 when the operator requests confirmation of the SS7 message at a specific time zone for a specific user (subscriber) using the operator remote terminals 100_1 to 100_n. Only the SS7 messages for a particular subscriber in a specific time zone in the data file are converted to a web document format such as HTML, for example, and then transmitted to the web server 500. Accordingly, an operator located at a remote location can monitor desired SS7 messages through the web server 500 using a terminal capable of accessing the Internet.

On the other hand, when the operator requests the confirmation of the SS7 message of a specific time zone for a specific user (subscriber) by using the administrator terminal 400, the message file storage management unit 330 from the raw data file to a specific subscriber of the specific time zone Only the SS7 messages are transmitted to the manager terminal 400 by using the decoding file to restore the decoded data. Accordingly, the operator can monitor the desired SS7 messages using the manager terminal 400 directly connected to the system.

3 is a flowchart illustrating a process of collecting data in a message monitoring system in an SS7 signal network according to a preferred embodiment of the present invention.

First, the messages captured by the SS7 network node are collected through the message collecting units 310_1 to 310_n (step S10), and then the collected messages are processed by the message file generating unit 320 to analyze the raw data file and data analysis. A data record information file (TMP File), a transaction demarcation file (XUDT File), and a short decoding file (Short Decoding File) are generated and stored in the message file storage management unit 330 (step S12).

Here, detailed information of files generated by the SS7 message monitoring server to analyze data is as follows. Data captured from the E1 line connected to each SS7 node is collected and stored in the following manner.

Each captured raw data is generated and stored as a raw data file in the form of one record file, for example, on an hourly basis. The structure of one record file which is a set of variable length data is as shown in FIG. In the figure, each data (Data 1, Data 2, ..., Data n) is captured one message data.

A data record information file (TMP file), which is an information file that records information that can distinguish each data of the raw data file and data of a predetermined length that records an offset, is generated in the configuration as shown in FIG. Stored.

Each data constituting the data record information file (TMP file) (Data 1, Data 2, ...., Data n) is composed of, for example, fixed-length records of 32 bytes, each record is a corresponding SS7 message data Version information for, MTP protocol version information of corresponding SS7 message data, TCAP protocol version information for corresponding SS7 message data, link information for corresponding SS7 message data, data generation time of corresponding SS7 message data, for corresponding SS7 message data Offset information, data length information of the SS7 message data, transaction identification information on the SS7 message data, and the like.

A message having more than 272 bytes in each SS7 message represents one transaction message by combining several messages. A transaction distinguishing file (XUDT file) is generated and stored to distinguish such a transaction message.

The transaction file (XUDT file) stores the related data when one transaction data of the message data constituting the raw data exceeds 272 bytes at the time of collecting the monitoring data, when several data means one transaction data at a time A file for recording one transaction data, and is composed of variable length records as shown in FIG.

In addition, a short decoding file is generated and stored as a file for use by the operator to improve the inquiry speed when the operator inquires data of a specific subscriber, and the index information of the decoding file is stored in the short decoding file. .

Create a raw data file and a data record information (TMP) file for the data captured by the SS7 link. The process (message file storage management) that reads the generated file and generates the analysis data required by the operator decodes the message to generate a decoded file. In this case, the index information of the decoded file is generated to speed up the inquiry of the decoded file. The short decoding file (Short Decoding File) is generated together.

This short decode file includes the date of creation, the offset of the decoded file, subscriber identification information such as MAP protocol, Mobile Identification Number (MIN), International Mobile Station Identity (IMSI), and Mobile Directory Number (MDN). The operation code, the characteristics of the data (whether it is an Invoke or a Return Result), and the like are stored, and as shown in FIG.

Next, the storage message file decoding unit 340 stores a raw data file, a data recording information file (TMP file), a transaction classification file (XUDT file), and a short decoding file stored in the message file storage management unit 330. File) to generate a decoded file and store the decoded file which is the processed data in the message file storage management unit 330 (steps S14 to S16).

Here, referring to the record of the data recording information file (TMP File), the SS7 message read out from the raw data is decoded by the steps of MTP2, SCCP, TCAP, and MAP, and the information necessary for analysis and the characteristic information of the message ( Invoke, Return Result, Return Error, etc.), data identifier information (MIN, MDN, IMSI, Mobile Station Integrated System Digital Network (MSISDN, etc.)], location information of the raw data file relative to the data of the corresponding decoding file, before and after A decoding file including location information of the coding file and the like is generated and stored. The decoding file is composed of fixed length records of 272 bytes as shown in FIG.

In a communication environment, data consisting of one transaction consists of Invoke and Return data. The decoding file stores the position information of the data connected with the data in the transaction table and records the data in the decoding file when the relevant data is found.

The recorded information is used as basic information that can be quickly retrieved and provided in various ways when the operator looks up the analysis data.

FIG. 4 is a detailed flowchart of the collected data processing process illustrated in FIG. 3.

First, the storage message file decoding unit 340 reads the above-described data recording information file (TMP file) from the message file storage management unit 330, and uses the data recording information file (TMP file) to perform the next SS7 message. Information is read, and the corresponding SS7 message data is read from the raw data file (step S20).

Thereafter, the stored message file decoding unit 340 checks whether the corresponding SS7 message data has an error in the message format (step S22).

As a result of the checking in step S22, if it is determined that there is an error in the message format, the storage message file decoding unit 340 fills the decoding structure for the corresponding SS7 message with the content of the message error format and adds it to the decoding file. Proceeds to step S20 described above and performs processing for the next SS7 message (step S24).

On the other hand, if it is confirmed in step S22 that there is no error in the message format, the storage message file decoding unit 340 decodes the OPC by decoding the MTP messages / SSCP message / TCAP message / MAP message for the corresponding SS7 message. Originating Point Code (DPC), Destination Point Code (DPC), Originating Sub System Number (orgSSN), Destination Sub System Number (dstSSN), Transfer IDentifier (TID), MIN, Electric Seral Number (ESN), MDN, Profile Index Extractable items such as Index), IMSI, Result, Cause Code, error code, etc. are extracted, and the extracted items are included in the decoding structure and the decoding structure is added to the decoding file (step S26).

Subsequently, the storage message file decoding unit 340 extracts parameters required by an operator to generate analysis data (step S28). Here, the necessary parameter is a parameter of each MAP message excluding subscriber identification codes such as MIN, IMSI, ESN, etc. For example, a subscriber profile such as a registration notification message, a registered MSCID (Mobile Switching Center IDentifier), etc. Likewise, it means the quiet parameter of each message.

Thereafter, the storage message file decoding unit 340 records and stores the data in units of days when a fail occurs (step S30). In this case, the fail may refer to a situation in which a message that does not meet the standard may be received or may be impossible to analyze in the storage message file decoding unit 340 as each network operator applies a local standard.

In this manner, the storage message file decoding unit 340 generates the decoding file as analysis data and stores the decoding file in the message file storage management unit 330.

As described above, the message monitoring system in the SS7 signal network according to the present invention captures and manages messages transmitted and received between network nodes using the SS7 protocol, stores them in the form of raw data, and stores a data record information file (TMP file) for data analysis. ), Transaction demarcation file (XUDT File), short decoding file (Short Decoding File) and decoding file are created and managed.

Accordingly, when the operator requests confirmation of the SS7 message in a specific time zone for a specific user (subscriber) by using the operator remote terminals 100_1 to 100_n, the message file storage management unit 330 identifies the corresponding data in the raw data file. Only the SS7 messages for the specific subscribers of the time zone are converted into the web document format such as HTML, for example, by using the decoding file, and then transferred to the web server 500. Accordingly, the remote operator can access the Internet. It is possible to monitor the desired SS7 messages through the web server 500 using an accessible terminal.

In addition, when an operator requests confirmation of the SS7 message at a specific time zone for a specific user (subscriber) by using the administrator terminal 400, the message file storage management unit 330 sends a specific data to a specific subscriber at the specific time zone. Only the SS7 messages for the decoded file are transferred to the manager terminal 400 by using the decoding file, and thus the operator can monitor the desired SS7 messages using the manager terminal 400 directly connected to the system. do.

Accordingly, the present invention captures and collects SS7 messages transmitted and received between network nodes using the SS7 protocol of the SS7 signal network through the SS7 monitoring cable. The collected message is decoded by self analysis function, and provides the history function of the message through the analysis of the data status transmitted and received between the actual network nodes and the analysis of the transmitted / received message data. And by providing a statistical function, it is possible to provide a variety of functions, such as the status management of the monitored network node and the service providing status to the subscriber.

On the other hand, the present invention is not limited to the above-described specific embodiments and can be modified and modified in various ways without departing from the gist of the present invention, which is included in the appended claims. It is obvious that if belonging to the present invention.

As described above, according to the present invention, since the data stored by capturing a message is used between the network nodes of the SS7 signal network, there is no overload of the existing network node.

In addition, the present invention enables the processing of all messages between all network nodes using the SS7 protocol.

In addition, the present invention provides a file / database based history management function and various message status status functions, thereby facilitating provision of data to be analyzed when a problem occurs in a communication message.

In addition, the present invention facilitates physical expansion by only modifying the environment file when changing a new environment of the system.

In addition, the present invention stores and manages the MTP2 message to the MAP message of the network node as it is in the form of raw data, so the reliability of the message is high, and the operator can easily distinguish the message through the analysis function of the message in the form of the raw data. It is provided to facilitate the analysis.

In addition, since the present invention provides the analyzed data on the web, the operator can view the analyzed data at any place where the web is provided.

Claims (15)

Message collecting means for collecting messages transmitted between network nodes of the SS7 signal network through a signal link cable; A message file and decoding file generating means for making the collected messages into a raw data file, generating decoded data files for decoding the raw data file, and a decoded file for analyzing the raw data file. and; The raw data file, the decoded data files and the decoded file generated by the message file and the decoded file generating means are stored and managed, and when there is a confirmation request for a message of a specific time zone for a specific user (subscriber) from the operator terminal, the decoding is performed. And a message file storage management means for providing reconstruction data by decoding only messages for a specific subscriber in a specific time zone from a raw data file using a file. The method of claim 1, The message file and decode file generating means generates a raw data file, decoded data files and decoded files for the messages collected on a timely basis, respectively. . The method of claim 1, A web server for providing a web page for the operator to check a message of a specific time zone for a specific user (subscriber) by using an internet-accessible terminal; When there is a request for confirmation of a message of a specific time zone for the specific user (subscriber), the message file is stored and managed by recovering the decoded data obtained by decoding only messages for a specific subscriber of a specific time zone from the raw data file using the decoding file. The message monitoring system of the SS7 signal network, characterized in that it further comprises a web format conversion means for receiving from the means converted to a web document format provided to the web server (500). The method of claim 1, The raw data file is a message monitoring system in the SS7 signal network, characterized in that generated by the raw data file in the form of one record file in an hour unit. The method of claim 4, wherein Decoded data files for decoding the raw data file, A data record information file which records information and an offset capable of distinguishing each data of the raw data file; A transaction classification file for classifying transaction messages; Message monitoring system in SS7 signaling network comprising a short decoding file for use in order to improve the query speed when the operator looks up the data of a specific subscriber. The method of claim 5, The data record information file includes message version information, MTP protocol version information, TCAP protocol version information, link information, data generation time, offset information, data length information, and transaction discrimination information for each raw message data. Characterized message monitoring system in SS7 signaling network. The method of claim 5, The short decoding file may include a generation date for raw message data, an offset of the decoding file, a MAP protocol, subscriber identification information, an operation code of data, and characteristics of data. The method of claim 7, wherein The decoded file is decoded in steps of MTP2, SCCP, TCAP, and MAP for each message, and information required for analysis, message characteristic information, data identifier information, location information of a raw data file related to data of the corresponding decoded file, and And a location information of the decoding file thereafter. A message collecting step of collecting messages transmitted between network nodes of the SS7 signal network through a signal link cable; Generating the collected messages into a raw data file in a raw state, generating decoded data files for decoding the raw data file, and generating a decoded file for analyzing the raw data file; Wow; A storage management step of storing and managing the raw data file, the decoded data files, and the decoded file generated in the message file and decode file generation step; When there is a request for confirmation of a message of a specific time zone to a specific user (subscriber) from an operator terminal, the decoding data is used to decode only messages for a specific subscriber of a specific time zone from the raw data file to provide analysis data. Message monitoring method in the SS7 signaling network, characterized in that comprises a providing step. The method of claim 9, The message file and decode file generating step generates a raw data file, decoded data files and a decoded file for each of the messages collected in units of time, respectively. The method of claim 9, Decoded data files for decoding the raw data file, A data record information file which records information and an offset capable of distinguishing each data of the raw data file; A transaction classification file for classifying transaction messages; A method for monitoring a message in an SS7 signal network, comprising: a short decoding file for use by an operator to improve the inquiry speed when an operator inquires data of a specific subscriber. The method of claim 11, The data record information file includes message version information, MTP protocol version information, TCAP protocol version information, link information, data generation time, offset information, data length information, and transaction discrimination information for each raw message data. Message monitoring method in SS7 signaling network characterized in that. The method of claim 11, The short decoding file may include a generation date for raw message data, an offset of the decoding file, a MAP protocol, subscriber identification information, an operation code of data, and characteristics of data. The method of claim 13, The decode file is decoded in steps of MTP2, SCCP, TCAP, and MAP for each message, and includes information necessary for analysis, message characteristic information, data identifier information, location information of a raw data file related to data of the corresponding decoded file, And then the location information of the decoding file. The method according to any one of claims 9 to 14, In the data providing step, the operator's terminal requests confirmation of a message of a specific time zone for a specific user (subscriber) through the web, and converts analysis data obtained by decoding only messages for a specific subscriber of the specific time zone into a web document format. The message monitoring method in the SS7 signaling network, characterized in that provided to the operator terminal.

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