JP2009246686A - Communication analyzing device and communication analyzing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication analyzing device for more correctly analyzing the state of a communication terminal for performing SIP communications without depending on the function of an SIP server. <P>SOLUTION: The communication analyzing device reads a communication log corresponding to a request of determination from the SIP server for relaying a communication message based on SIP and storing the relayed communication message as the communication log, compares the read communication log with previously stored determination conditions, and outputs communication state information previously stored in association with the matching determination condition. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication analysis device and a communication analysis method for analyzing a communication state of a communication terminal that performs communication based on SIP.

  In recent years, telephone communication based on SIP (Session Initiation Protocol) is performed on an IP network. FIG. 7 is a diagram illustrating the concept of a conventional SIP communication system. A general SIP communication system is connected to an IP telephone network 601 and is transmitted to a telephone terminal 604 (telephone terminal 604-1, telephone terminal 604-2, telephone terminal 604-3) via the IP telephone network 601. SIP server device 602 (SIP server device 602-1, SIP server device 602-2, SIP server device 602-3) that performs call control of SIP communication by relaying messages and information input / output to / from telephone terminal 604 A terminal adapter (TA) 603 (terminal adapter 603-1, terminal adapter 603-2, terminal adapter 603-3) that performs transmission / reception and protocol conversion is configured.

The SIP server device 602 manages the state of the telephone terminal 604. For example, when the telephone terminal 604-1 managed by the SIP server apparatus 602-1 makes a communication request destined for the telephone terminal 604-2, the SIP server apparatus 602-1 transmits and receives a communication message by SIP with the SIP server apparatus 602-2. Establish communication. When the SIP server device 602-1 establishes communication with the SIP server device 602-2, the telephone terminal 604-1 and the telephone terminal 604-2 start a call via the IP telephone network 601. Here, the SIP server device 602-1 determines that the SIP server 602-1 is based on a communication request from the telephone terminal 604-3 to the telephone terminal 604-1 while the telephone terminal 604-1 is talking to the telephone terminal 604-2. When a communication message transmitted from the device 602-3 is received, the telephone terminal 604-1 transmits a BT (Busy Tone) indicating that a call is in progress to the SIP server device 602-3.
Patent Document 1 proposes a method in which the same service as No. 113 (phone failure check) and No. 114 (busy check) provided by the conventional fixed telephone service is performed by SIP communication. Here, when BT is responded to the communication request to the telephone terminal, the communication status of the telephone terminal is inquired to the SIP server device that manages the communication status of the telephone terminal.
JP 2006-165919 A

  However, the telephone terminal information managed by the SIP server device as described above may not always match the actual communication state of the telephone terminal, and the communication state of the telephone terminal cannot be distinguished in detail. For example, if the telephone terminal 604-1 is not making a call but the handset remains disconnected, the SIP server device 602-1 cannot know the state, and the SIP server device 602-1 is in the meantime. In response to the inquiry about the communication status of the telephone terminal 604-1, information indicating that the telephone terminal 604-1 is idle is replied, and an appropriate response according to the state of the telephone terminal 604-1 is given. I can't say. In addition, for example, when the terminal adapter 603-1 is disconnected from the line and communication with the telephone terminal 604-1 cannot be performed, the SIP server device 602-1 similarly displays communication state information corresponding to the state. It cannot be provided.

  As described above, in the conventional technology, in SIP communication, when a communication request is made to the communication terminal and BT is responded, by inquiring the SIP server device, when the communication request destination telephone terminal is busy, The communication state cannot be separated, such as when the handset of the communication request destination telephone terminal is disconnected, or when the line between the communication request destination SIP server apparatus and the telephone terminal is considered to be faulty. Here, it is desirable that more detailed information can be acquired for the communication state of the telephone terminal of the communication destination. In addition, when a log of communication messages transmitted and received by the SIP server device is stored in the SIP server device, a method in which the operator identifies the communication state of the telephone terminal by analyzing the log can be considered. The analysis is time consuming and cumbersome, and the reliability of the determination result is not stable. For example, it may be determined that the communication state differs depending on the skill level of the operator.

  The present invention has been made in view of such circumstances, and provides a communication analysis device and a communication analysis method for more accurately analyzing the communication state of a communication terminal that performs SIP communication regardless of the function of the SIP server device. To do.

  In order to solve the above-described problem, the present invention relays a communication message that is transmitted / received by a communication terminal that performs communication based on SIP and includes identification information for identifying a transmission source, and the communication message and the communication message transmitted / received by itself. A communication analysis device capable of communicating with a SIP server device in which a communication log that associates a transmission / reception time is stored, and a communication message that specifies a communication state of a communication terminal among communication messages transmitted and received by the SIP server device A determination condition storage unit in which a determination condition indicated by the communication condition information indicating the communication state of the communication terminal specified by the determination condition is associated and stored in advance, information indicating a specific time, and the communication terminal A judgment request accepting unit that accepts an input of a judgment request with identification information for identifying the ID, and a judgment request accepted by the judgment request accepting unit A communication log reading unit that reads a communication log including a communication message in response to a communication request addressed to the communication terminal from among the communication logs corresponding to the information indicating ID and the identification information, and the communication log reading unit Is detected when the communication message included in the communication log read out is compared with the determination condition stored in advance in the determination condition storage unit and a determination condition matching the communication message included in the communication log is detected. A determination unit that outputs communication state information of the communication terminal that is associated with the condition and stored in advance in the determination condition storage unit.

  Further, according to the present invention, the determination condition storage unit includes a determination condition indicated by a communication message indicating a line blockage originating from the communication terminal, and communication state information indicating that the receiver included in the communication terminal is disconnected. They are stored in association with each other.

  Further, according to the present invention, the determination condition storage unit is in a state where the determination condition indicated by the communication message indicating a timeout with the SIP server device as a transmission source is not connected to the SIP server device and the communication terminal, or It is characterized in that communication state information indicating either or both of the states between the SIP server device and the communication terminal is stored in association with each other.

  Further, according to the present invention, the determination condition storage unit corresponds to a determination condition indicated by a communication message indicating a line block with the SIP server device as a transmission source, and communication state information indicating that the communication terminal is busy. It is characterized by being attached and stored.

  Further, according to the present invention, the determination condition storage unit includes a determination condition indicated by a communication message indicating a server failure with the SIP server device as a transmission source, a state in which the SIP server device has failed, or congestion. One of the states in which a communication with the communication terminal cannot be performed, or communication state information indicating both states is stored in association with each other.

  Further, the present invention relays a communication message that is transmitted / received by a communication terminal that performs communication based on SIP and includes identification information for identifying a transmission source, and corresponds to a communication message transmitted / received by itself and a time at which the communication message is transmitted / received. It is possible to communicate with the SIP server device in which the attached communication log is stored, and among the communication messages transmitted and received by the SIP server device, it is specified in the determination condition and the determination condition indicated by the communication message specifying the communication state of the communication terminal. A communication analysis method using a communication analysis device including a determination condition storage unit that is stored in advance in association with communication state information indicating a communication state of a communication terminal. A step of receiving an input of a determination request for information indicating time and identification information for identifying a communication terminal, and a communication log reading unit A communication log including a communication message in response to a communication request destined for the communication terminal is transmitted from the SIP server device out of the communication log corresponding to the information indicating the time included in the determination request received by the receiving unit and the identification information. The step of reading and the determination unit compares the communication message included in the communication log read by the communication log reading unit with the determination condition stored in advance in the determination condition storage unit, and determines the communication message included in the communication log. Outputting a communication state information of a communication terminal associated with the detected determination condition and stored in advance in the determination condition storage unit when a matching determination condition is detected. It is.

  As described above, according to the present invention, the communication message based on SIP is relayed, and the communication log corresponding to the determination request is read from the SIP server device in which the relayed communication message is stored as the communication log. Since the log is compared with the determination condition stored in advance and the communication state information stored in advance in association with the matching determination condition is output, the communication state of the communication terminal that performs SIP communication is changed. It becomes possible to judge.

  In addition, according to the present invention, the determination condition indicated by the communication message indicating the line block with the communication request destination communication terminal as the transmission source corresponds to the communication state information indicating that the handset included in the communication terminal is disconnected. Since it has been added and stored, it is possible to determine that the handset provided in the communication terminal is disconnected when a communication message indicating a line blockage is sent from the communication terminal that is the communication request destination. .

  Further, according to the present invention, the determination condition indicated by the communication message indicating the timeout with the SIP server device as the transmission source is not connected to the SIP server device and the communication terminal, or the SIP server device communicates with the SIP server device. Since the communication status information indicating either or both of the states of the line with the terminal is associated and stored, the SIP server device is set as the transmission source. When a communication message indicating a timeout has been sent, the SIP server device and the communication terminal are not connected, or the line between the SIP server device and the communication terminal is in a broken state It becomes possible to judge.

  Further, according to the present invention, the determination condition indicated by the communication message indicating the line blockage originating from the SIP server device and the communication status information indicating that the communication terminal is busy are stored in association with each other. As a result, the communication terminal can determine that a call is in progress when a message indicating a line block with the SIP server device as the transmission source has been transmitted.

  In addition, according to the present invention, it is not possible to make a call with a communication terminal due to a determination condition indicated by a communication message indicating a server failure originating from the SIP server device and a state in which the SIP server device has failed or due to congestion. Since the communication status information indicating either or both of the statuses is stored in association with each other, a communication message indicating a server failure having the SIP server device as a transmission source has been transmitted. In this case, it is possible to determine that the SIP server device is in a state of failure or a state in which communication with the communication terminal cannot be performed due to congestion.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a communication system according to the present embodiment.
The communication system according to the present embodiment includes a communication analysis device 100, a communication terminal 200-1, a SIP server device 300, and a communication terminal 200-2.

  The SIP server device 300 is a computer device that controls the SIP communication of the communication terminal and manages the communication state of the connected subordinate communication terminal. Although FIG. 1 illustrates an example in which the SIP server device 300 manages the communication state of one telephone terminal 500, a plurality of telephone terminals 500 may be managed. The SIP server device 300 receives a SIP communication message (for example, INVITE) destined for the telephone terminal 500 to be managed, transmits a communication message (for example, 180 Ringing) in response, and communicates with the communication source by SIP. Send and receive messages. Here, the SIP server apparatus 300 associates each communication message transmitted / received with information indicating the time when the communication message was transmitted / received with each other, and stores the communication message in its own recording area.

The communication terminal 200-2 includes a terminal adapter 400 and a telephone terminal 500, and performs communication based on SIP communication control of the SIP server device 300.
A terminal adapter (hereinafter also referred to as TA) 400 performs transmission / reception of voice information transmitted / received to / from the telephone terminal 500 and protocol conversion. In the present embodiment, an example in which the SIP communication of the telephone terminal 500 is controlled by the terminal adapter 400 will be described. However, the SIP communication of the telephone terminal 500 may be controlled by a router (VoIP router). .
The telephone terminal 500 is a terminal that is connected to the IP telephone network via the terminal adapter 400 and the SIP server device 300 and performs telephone communication with a communication terminal connected to the IP telephone network.

  The communication terminal 200-1 transmits a communication state determination request for a specific communication terminal to the communication analysis apparatus 100. In the present embodiment, the communication terminal 200-1 is a telephone terminal that has received a BT as a response from the SIP server device 300 when making a communication request addressed to the telephone terminal 500. A communication state determination request for the telephone terminal 500 is made. In addition, the communication terminal 200-1 communicates a determination request including information on identification information (for example, telephone number) of the determination request target telephone terminal 500 and the time when the BT is received according to information input from the user. It transmits to the analysis apparatus 100.

  The communication analysis device 100 receives the determination request transmitted from the communication terminal 200-1, reads the communication log from the SIP server device that manages the communication terminal to be determined, and performs communication of the communication terminal based on the read communication log. It is a computer apparatus which performs the determination process which determines a state. The communication analysis device 100 includes a determination request accepting unit 110, a determination unit 120, a determination condition storage unit 130, and a communication log reading unit 140.

Determination request accepting unit 110 receives a determination request transmitted from communication terminal 200-1.
The communication log reading unit 140 reads a communication log corresponding to the determination request received by the determination request receiving unit 110 from the SIP server device 300. For example, the communication log reading unit 140 associates the communication log stored in the SIP server device 300 with a time that matches or is closest to the time included in the determination request, and the identification information of the communication request destination is A communication log that matches the identification information included in the determination request is detected, and a communication log of a communication message that includes a response code corresponding to the communication request is detected.

  In the determination condition storage unit 130, communication state information indicating the communication state of the determination target communication terminal indicated by the determination condition is associated with the determination condition indicated by the predetermined response code and the code transmission source. Stored in advance. FIG. 2 is a diagram illustrating an example of data stored in the determination condition storage unit 130. The line (a) in FIG. 2 is associated with the response code (486) indicating the line blockage and the determination condition information indicated by the fact that the code transmission source is the SIP server device, and the “busy” communication. State information is shown. FIG. 3A is a conceptual diagram showing the communication state of FIG. When the communication terminal 200-1 and the telephone terminal 500 are in a call, when the SIP server apparatus 300 receives a communication request addressed to the telephone terminal 500, the SIP server apparatus 300 stores and manages it in its own storage area. Based on the communication state, the telephone terminal 500 determines that the call is in progress, and transmits a response message including a response code (486) indicating a line blockage to the communication request source.

  The row (b) in FIG. 2 corresponds to the response code (5XX (XX is a number defined in RFC3261)) indicating a server failure and the determination condition information indicated by the code sending source being the SIP server device. In addition, communication state information of “call is not possible due to SIP server failure, congestion, etc.” is shown. FIG. 3B is a conceptual diagram showing the communication state of FIG. When the SIP server device 300 is out of order or when the network is congested, the SIP server device 300 receives a communication request addressed to the telephone terminal 500 and sends a response message including a response code indicating the server failure. To the communication request source.

  The line (c) in FIG. 2 is associated with the response code (486) indicating the line blockage and the determination condition information indicated by the fact that the transmission source of the code is TA. Communication state information is shown. FIG. 3C is a conceptual diagram showing the communication state of FIG. If the telephone terminal 500 is not talking to another communication terminal, the SIP server device 300 manages the state that the telephone terminal 500 is in an idle state. Therefore, even if the telephone terminal 500 is disconnected and cannot make a call, When a communication request destined for the telephone terminal 500 is received, the communication request is transferred to the terminal adapter 400. The terminal adapter 400 makes a communication request to the telephone terminal 500, but determines that it cannot make a call with the telephone terminal 500 because the handset of the telephone terminal 500 is disconnected, and a response code (blocking line) 486) is transmitted to the communication request source.

  The line (d) in FIG. 2 is associated with the response code (406) indicating the timeout and the determination condition information indicated by the fact that the code transmission source is the SIP server device, and “TA has been removed. Or, communication state information “line failure” is shown. FIG. 3D is a conceptual diagram showing the communication state of FIG. When the telephone terminal 500 is not talking to another communication terminal, the SIP server apparatus 300 transfers the communication request to the terminal adapter 400 when receiving a communication request addressed to the telephone terminal 500. Here, when the terminal adapter 400 is disconnected from the line or there is a failure in the line between the SIP server device 300 and the terminal adapter 400, the SIP server device 300 and the terminal adapter 400 cannot communicate with each other. The SIP server device 300 cannot obtain a response from the terminal adapter 400. If the response from the terminal adapter 400 is not obtained within a predetermined time, the SIP server device 300 determines that a timeout has occurred and transmits a response code (406) indicating the timeout to the communication request source.

  The determination unit 120 compares the communication log read by the communication log reading unit 140 from the SIP server device 300 with the determination condition information stored in the determination condition storage unit 130, and determines the response code and the transmission source included in the communication log. The determination condition that matches is detected. The determination unit 120 determines communication state information corresponding to the detected determination condition information as communication state information of a determination target communication terminal.

Next, an operation example in which the communication analysis apparatus 100 according to the present embodiment determines the communication state of the telephone terminal 500 will be described with reference to FIG.
Here, the communication terminal 200-1 makes a communication request to the telephone terminal 500 via the SIP server device 300, receives a BT response from the SIP server device 300, and stores its communication log in the SIP server device 300. Suppose that

  The communication terminal 200-1 transmits a determination request including the telephone number of the telephone terminal 500 and the time when the BT is received from the SIP server apparatus 300 to the communication analysis apparatus 100 according to information input from the user. The determination request reception unit 110 of the communication analysis device 100 receives the determination request transmitted from the communication terminal 200-1 (step S1).

  The communication log reading unit 140 reads a communication log corresponding to the determination request received by the determination request receiving unit 110 from the SIP server device 300 (step S2). The determination unit 120 detects a determination condition that matches the communication log read by the communication log reading unit 140 from the SIP server device 300 from the determination conditions stored in the determination condition storage unit 130. For example, the determination unit 120 first determines whether or not the response code of the communication log is a server failure (5XX) (step S3). Here, if the response code of the communication log is a server failure (5XX), the determination unit 120 determines that the communication state of the telephone terminal 500 is a server failure (step S4).

  On the other hand, if it is determined in step S3 that the response code of the communication log is not a server failure (5XX), the determination unit 120 determines whether or not the response code of the communication log is a timeout (406) (step S5). . If the response code of the communication log is timeout (406), the determination unit 120 determines that the communication state of the telephone terminal 500 is out of TA or a line (network) failure (step S6).

  On the other hand, if it is determined in step S5 that the response code of the communication log is not time-out (406), the determination unit 120 determines whether or not the response code of the communication log is a line blockage (486), and the code transmission source is It is determined whether it is a SIP server device or a terminal adapter (step S7). If the code sending source of the line blockage is the SIP server device, the determination unit 120 determines that the communication state of the telephone terminal 500 is busy (step S9). On the other hand, if the transmission source of the line blocking code is a terminal adapter, the determination unit 120 determines that the communication state of the telephone terminal 500 is disconnected from the receiver (step S8).

As described above, according to the present embodiment, in SIP communication, when a BT is received as a response to a communication request, a determination request is sent to the communication analysis apparatus 100, whereby the communication state of the communication terminal that is the communication request destination is changed. It becomes possible to determine more precisely and in detail.
If it is determined in step S3 in FIG. 4 that the server has failed, a voice guidance such as “the server has failed” may be output and sent to the determination request source. If it is determined in step S5 in FIG. 4 that the TA has been disconnected or the line has failed, a voice guidance such as “the terminal adapter has been disconnected or the line has failed” is output to the determination request source. You may make it flow. If it is determined in step S7 in FIG. 4 that the handset has been disconnected, the determination request source indicates that “(identification information for determination request) indicates that there is no available line on the terminal or that the handset has been disconnected. You may be made to output and play voice guidance such as “I will let you know that happened”. If it is determined in step S7 in FIG. 4 that the call is in progress, the determination request source is notified of “(determination request target identification information) indicates that the call was in progress” or the like. May be output and flowed.

  Further, although this embodiment has shown an example of operation in a communication network in the case of 1 channel and 1 telephone number, a communication request is also made in the case of a contract state such as multiple channels and multiple telephone numbers as in this embodiment. It is possible to determine the communication state of the communication destination when BT is responded to. (A) of FIG. 5 is a figure which shows the terminal state of 1 channel and 1 telephone number. Here, one telephone terminal having one telephone number is connected to one terminal adapter. FIG. 5B is a diagram showing a terminal state of a plurality of channels and one telephone number. Here, a plurality of telephone terminals having the same telephone number are connected to one terminal adapter. (C) of FIG. 5 is a figure which shows the terminal state of multiple channels and multiple telephone numbers. Here, a plurality of telephone terminals having different telephone numbers are connected to one terminal adapter.

FIG. 6 is a diagram illustrating determination conditions indicated by a response code, a transmission source of the code, a contract state of a channel / phone number, and communication state information corresponding to the determination conditions.
The row (a) of FIG. 6 shows the communication status information for each contract status when the response code (486) indicating the line block and the code transmission source is the SIP server device. In this case, if the number is 1 channel and 1 number, the communication status is “busy”. If the number is 1 channel number, the communication status is “busy for all channels”. This indicates a communication state in which all the channels linked to the number are busy.

  The row (b) of FIG. 6 shows the response code (5XX) indicating a server failure and the communication status information for each contract status when the code transmission source is the SIP server device. In this case, it is possible to determine that the communication state is “call cannot be made due to failure of SIP server device, congestion, etc.” in any contract state of 1 channel 1 number, multiple channel 1 number, and multiple channel multiple number.

  The row (c) of FIG. 6 shows communication status information for each contract status when the response code (486) indicating the line blockage and the code transmission source is TA. In this case, if the number is 1 channel and 1 number, the communication status of “Telephone handset disconnection” is set. If the number is a multichannel 1 number or multiple channels, the communication status is “Telephone handset disconnection or TA port shortage”. Is shown.

The line (d) in FIG. 6 shows a response code (406) indicating a timeout and communication state information for each contract state when the code transmission source is the SIP server device. In this case, the communication status information “TA is out of order or line failure” is shown in any of the contract states of 1 channel 1 number, multiple channel 1 number, and multiple channel multiple number.
In this way, the determination condition storage unit 130 of the communication analysis device 100 stores the correspondence between the determination condition shown in FIG. 6 and the communication state information in advance, and gives the contract state to the determination request. The communication state may be determined in accordance with the contract conditions of 1 channel 1 number, multiple channel 1 number, and multiple channel multiple number.

  In the present embodiment, the communication terminal 200-1 is a telephone terminal that makes a communication request to the telephone terminal 500 and receives a response from the BT. However, the communication terminal 200-1 is operated by an operator, A computer terminal provided with a display unit or the like may be used. In this case, the communication state information in response to the determination request may be output by displaying the communication state information stored in the determination condition storage unit 130 as a character string on the display unit of the communication terminal 200-1. Further, in this case, the telephone terminal that has made a communication request to the telephone terminal 500 and received a response of BT can know the communication state of the communication request destination by making an inquiry to the operator.

  In the present embodiment, the communication log stored in the SIP server device 300 is read by the communication message receiving unit 140 of the communication analysis device 100. For example, a communication log acquisition server different from the SIP server device 300 is used. The communication log acquisition server device installs the device and acquires and stores the communication message transmitted and received by the SIP server device 300. The communication message reception unit 140 of the communication analysis device 100 uses the communication log acquisition server. You may make it read a communication log from an apparatus. In this way, when determining the communication state, it is not necessary to communicate with the SIP server apparatus 300 by acquiring the communication log from the communication log acquisition server apparatus, and without applying a communication load to the SIP server apparatus 300. It is possible to determine the communication state.

  The program for realizing the function of the processing unit in the present invention is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to determine the communication state. May be performed. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer system” includes a WWW system having a homepage providing environment (or display environment). The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

It is a figure which shows the structure of the communication system by one Embodiment of this invention. It is a figure which shows the example of data memorize | stored in the determination condition memory | storage part by one Embodiment of this invention. It is a figure which shows the concept of the communication state of the terminal by one Embodiment of this invention. It is a figure which shows the operation example of the communication system by one Embodiment of this invention. It is a figure which shows the terminal structure for every contract state by one Embodiment of this invention. It is a figure which shows the example of data memorize | stored in the determination condition memory | storage part by one Embodiment of this invention. It is a figure which shows the example of the terminal structure which performs communication based on SIP.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Communication analyzer 110 Judgment request acceptance part 120 Judgment part 130 Judgment condition memory | storage part 140 Communication log reading part 200 Communication terminal 300 SIP server apparatus 400 Terminal adapter 500 Telephone terminal 601 IP telephone network 602 SIP server apparatus 603 Terminal adapter 604 Telephone terminal

Claims (6)

A communication log is transmitted / received by a communication terminal that performs communication based on SIP, relays a communication message including identification information for identifying a transmission source, and a communication log that associates a communication message transmitted / received by itself with a time at which the communication message is transmitted / received. A communication analysis device capable of communicating with a stored SIP server device,
Among the communication messages transmitted and received by the SIP server device, a determination condition indicated by a communication message specifying a communication state of the communication terminal, and communication state information indicating a communication state of the communication terminal specified by the determination condition; Is stored in advance in association with a determination condition storage unit,
A determination request receiving unit that receives an input of a determination request of information indicating a specific time and identification information for identifying the communication terminal;
Among the communication logs corresponding to the information indicating the time included in the determination request received by the determination request receiving unit and the identification information, the communication log includes a communication message in response to the communication request destined for the communication terminal. A communication log reading unit for reading a communication log from the SIP server device;
The communication message included in the communication log read by the communication log reading unit is compared with the determination condition stored in advance in the determination condition storage unit, and matches the communication message included in the communication log. A determination unit that outputs communication state information of the communication terminal that is associated with the detected determination condition and stored in advance in the determination condition storage unit when the determination condition is detected;
A communication analysis apparatus comprising: In the determination condition storage unit, a determination condition indicated by a communication message indicating a line block with the communication terminal as a transmission source is associated with communication state information indicating that the receiver included in the communication terminal is disconnected. The communication analysis device according to claim 1, wherein the communication analysis device is stored. The determination condition storage unit is in a state where the determination condition indicated by a communication message indicating a timeout originating from the SIP server device and the SIP server device and the communication terminal are not connected, or the SIP The communication state information indicating either or both of a state where a line between a server device and the communication terminal is broken is stored in association with each other. The communication analysis apparatus according to claim 1 or claim 2. In the determination condition storage unit, a determination condition indicated by a communication message indicating a line block with the SIP server device as a transmission source is associated with communication state information indicating that the communication terminal is busy. The communication analysis device according to claim 1, wherein the communication analysis device is stored. The determination condition storage unit includes a determination condition indicated by a communication message indicating a server failure originating from the SIP server device, and the communication terminal is in a state where the SIP server device is out of order or due to congestion. The communication status information indicating the status of either or both of which is incapable of making a call is stored in association with each other. The communication analysis device described. A communication log is transmitted / received by a communication terminal that performs communication based on SIP, relays a communication message including identification information for identifying a transmission source, and a communication log that associates a communication message transmitted / received by itself with a time at which the communication message is transmitted / received. Among the communication messages that are communicable with the stored SIP server device and transmitted and received by the SIP server device, the determination condition indicated by the communication message that specifies the communication state of the communication terminal and the determination condition are specified. A communication analysis method using a communication analysis device including a determination condition storage unit that is stored in advance in association with communication state information indicating a communication state of the communication terminal,
A determination request receiving unit receiving input of a determination request of information indicating a specific time and identification information for identifying the communication terminal;
A communication log reading unit responds to a communication request destined for the communication terminal in the communication log corresponding to the information indicating the time included in the determination request received by the determination request receiving unit and the identification information. Reading the communication log containing the communication message from the SIP server device;
The determination unit compares the communication message included in the communication log read by the communication log reading unit with the determination condition stored in advance in the determination condition storage unit, and includes the communication message included in the communication log. Output the communication state information of the communication terminal that is associated with the detected determination condition and stored in advance in the determination condition storage unit.
A communication analysis method comprising:

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