JP2018097409A - Communication management system, communication system, communication management method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select a relay device after a transmission and to select a relay device from the transmission to the start of communication according to a method of selecting a relay device to be used according to a combination of a source and a destination. It takes time to connect a communication terminal to the relay device. A history management DB 5006 of a management system 50 manages history information of communication by a terminal 10. The communication management unit 58 of the management system 50 estimates the destination of the terminal 10 based on the history information managed in the history management DB 5006. The communication management unit 58 of the management system 50 selects the relay device 30 for relaying the communication between the terminals 10 based on the combination of the terminal 10 and the transmission destination estimated by the communication management unit 58. The transmission / reception unit 51 of the management system 50 connects the terminal 10 to the relay device 30 by transmitting the connection information for connecting the terminal 10 to the relay device 30 selected by the communication management unit 58 to the terminal 10. [Selection diagram] FIG. 9

Description

  The present invention relates to a communication management system, a communication system, a communication management method, and a program.

  In recent years, communication systems for communicating via a communication network such as the Internet have become widespread. In a communication system such as a conference system, it is known to use a relay device for relaying communication between communication terminals. In this case, the communication terminal at one site transmits digital content data such as user images and voices to the relay device, and the communication terminal at the other site receives the content data relayed by the relay device. Output. There is known a method of selecting an optimum relay device based on a combination of communication terminals that start communication when a plurality of relay devices are provided in the communication system.

  In Patent Document 1, when a transmission terminal designates a destination transmission terminal and requests a call, the transmission management system transmits the higher-order digit of the IP address of the relay device, the transmission terminal of the call request source, or the destination It is disclosed that the number of relay devices to be used is narrowed down by investigating whether the upper digit of the IP address of the transmission terminal is the same or different.

  However, according to the method of selecting the relay device to be used according to the combination of the transmission source and the transmission destination after the transmission, the process of selecting the relay device from the transmission to the start of communication, and the selected relay There arises a problem that it takes time in processing for connecting a communication terminal to the apparatus.

  The invention according to claim 1 is a communication management system for managing communication between communication terminals, the management means for managing the history information of communication by the communication terminal, and the history information managed by the management means based on the history information An estimation unit that estimates a communication partner of a communication terminal; a selection unit that selects a relay device that relays communication between communication terminals based on a combination of the communication terminal and a destination estimated by the estimation unit; Connection means for connecting the communication terminal to the relay device selected by the selection means.

  According to the present invention, when a relay device to be used is selected according to a combination of a transmission source and a transmission destination, there is an effect that it is possible to shorten the time from the transmission to the start of communication.

FIG. 1 is a schematic diagram of a communication system according to an embodiment. FIG. 2 is a conceptual diagram showing a state of transmission / reception of various information in the communication system. FIG. 3 is an external view of a terminal according to an embodiment. FIG. 4 is a hardware configuration diagram of a terminal according to an embodiment. FIG. 5 is a hardware configuration diagram of a management system according to an embodiment. FIG. 6 is a functional block diagram of a terminal and a management system that constitute a part of the communication system according to the embodiment. FIG. 7 is a conceptual diagram showing each table managed in the management system. FIG. 8 is a sequence diagram illustrating an example of processing in which the terminal logs in to the management system. FIG. 9 is a sequence diagram illustrating an example of processing for estimating a communication partner of a terminal. FIG. 10 is a flowchart illustrating an example of a process for identifying a terminal having the maximum expected value. FIG. 11 is a sequence diagram illustrating an example of processing for establishing communication between terminals. FIG. 12 is a sequence diagram illustrating an example of a process for changing the relay device to which the terminal is connected.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

<< Overall Configuration of Communication System 1 >>
FIG. 1 is a schematic diagram of a communication system according to an embodiment. The communication system 1 is constructed by a plurality of communication terminals 10aa, 10ab, 10ba, 10bb, 10ca, 10cb, 10da, 10db, a plurality of relay devices 30a, 30b, 30c, 30d, and a communication management system 50. Hereinafter, “communication terminal” is simply referred to as “terminal”, and “communication management system” is simply referred to as “management system”. Further, an arbitrary terminal among the plurality of terminals 10aa, 10ab,... Is represented as “terminal 10”, and an arbitrary relay apparatus among the plurality of relay apparatuses 30a, 30b, 30c, and 30d is represented as “relay apparatus 30”.

  The communication system 1 includes a data providing system that transmits content data in one direction from one terminal 10 to the other terminal 10 and a communication system that transmits content data in both directions between a plurality of terminals 10. Examples of the communication system include a video conference system and a video phone system. Hereinafter, the case where content data is image data and sound data, the communication system 1 is a video conference system as an example of a communication system, and the terminal 10 is a video conference terminal will be described. The image of the image data may be a moving image or a still image, or may be both a moving image and a still image. The content data is not limited to image data and sound data, and can be replaced with arbitrary data such as text data, tactile data, and olfactory data. “Video conference” is used synonymously with “video conference”.

  The plurality of terminals 10 perform communication by transmitting and receiving image data and sound data. The relay device 30 relays communication among the plurality of terminals 10. The management system 50 performs login authentication of the terminal 10, communication of the terminal 10, management of the operating state, management of the relay device 30, and the like.

  The plurality of routers 70a, 70b, 70c, 70d, 70ab, and 70cd select an optimal route for communication. In the following, an arbitrary router among the routers 70a, 70b, 70c, 70d, 70ab, and 70cd is represented as “router 70”.

  The terminals 10aa and 10ab, the relay device 30a, and the router 70a are communicably connected via the LAN 2a. The terminals 10ba, 10bb, the relay device 30b, and the router 70b are communicably connected via the LAN 2b. The LANs 2a and 2b are communicably connected by a dedicated line 2ab including a router 70ab, and are constructed in a predetermined area A. For example, the region A is Japan, the LAN 2a is constructed in a Tokyo office, and the LAN 2b is constructed in an Osaka office.

  The terminals 10ca, 10cb, the relay device 30c, and the router 70c are communicably connected via a LAN 2c. The terminals 10da, 10db, the relay device 30d, and the router 70d are communicably connected via the LAN 2d. The LANs 2c and 2d are communicably connected via a dedicated line 2cd including a router 70cd, and are constructed in a predetermined area B. For example, region B is the United States of America, LAN 2c is built in a New York office, and LAN 2d is Washington D.C. C. Is built in the office. Area A and area B are communicably connected via the Internet 2i from routers 70ab and 70cd, respectively.

  The management system 50 is communicably connected to the terminal 10 and the relay device 30 via the Internet 2i. The management system 50 may be installed in the region A or the region B, or may be installed in a region other than these.

  In the present embodiment, the communication network 2 of the present embodiment is constructed by the LANs 2a, 2b, 2c, 2d, the dedicated lines 2ab, 2cd, and the Internet 2i. The communication network 2 may include a place where wireless communication such as Wi-Fi (Wireless Fidelity) or Bluetooth (registered trademark) is performed in addition to wired communication.

  The terminal 10 is used not only for calls between a plurality of offices and between different rooms in the same office, but also for calls within the same room, and calls outdoors and indoors or outdoors and outdoors. Also good. When each terminal 10 is used outdoors, wireless communication such as a cellular phone communication network is performed. The terminal 10 is not limited to use in a video conference, but may be used for general conversation between users or presentation of information in one direction.

  Devices other than the terminal 10, the relay device 30, and the management system 50 may be connected to the communication network 2 so as to be communicable with the terminal 10, the relay device 30, and the management system 50. Examples of the other apparatus include a program providing system as a server that transmits a terminal program to the terminal 10, transmits the relay apparatus program to the relay apparatus 30, and transmits a communication management program to the management system 50. . In addition, as another device, a maintenance system may be mentioned as a server that performs maintenance such as maintenance, management, and maintenance of at least one of the terminal 10, the relay device 30, and the management system 50.

  FIG. 2 is a conceptual diagram showing a state of transmission / reception of various information in the communication system. As shown in FIG. 2, in the communication system 1, a management information session sei for transmitting and receiving various types of management information Im such as signaling messages is established between the terminal 10 and the management system 50. . Further, a session sed for content data for transmitting and receiving the image data Di and the sound data Ds is established between the terminal 10 and the relay device 30. The image data Di may include basic data essential for reproducing an image and extended data for improving the quality of an image to be reproduced by combining with the basic data. In this case, the content data session sed includes a session for transmitting / receiving basic data, a session for transmitting / receiving extension data, and a session for transmitting / receiving sound data.

<< Hardware Configuration of Embodiment >>
Next, the hardware configuration of this embodiment will be described. FIG. 3 is an external view of the terminal 10 according to an embodiment. As shown in FIG. 3, the terminal 10 includes a housing 1100, an arm 1200, and a camera housing 1300. Among these, the front wall surface 1110 of the housing 1100 is provided with an air intake surface formed by a plurality of air intake holes, and the rear wall surface 1120 of the housing 1100 is provided with an air exhaust surface formed with a plurality of air exhaust holes. 1121 is provided. Thereby, by driving a cooling fan built in the housing 1100, the outside air behind the terminal 10 can be taken in via the intake surface and exhausted to the rear of the terminal 10 via the exhaust surface 1121. Since the sound collecting hole 1131 is formed in the right side wall surface 1130 of the housing 1100, the built-in microphone 114 described later can pick up sounds such as voice, sound, and noise.

  An operation panel 1150 is formed on the right wall surface 1130 side of the housing 1100. The operation panel 1150 is provided with a plurality of operation buttons (108a to 108e) to be described later, a power switch 109 to be described later, and an alarm lamp 119 to be described later, and outputs sound from a built-in speaker 115 to be described later. A sound output surface 1151 formed by a plurality of sound output holes for passing through is formed. Further, a housing 1160 as a recess for housing the arm 1200 and the camera housing 1300 is formed on the left wall surface 1140 side of the housing 1100. The right side wall surface 1130 of the housing 1100 is provided with a plurality of connection ports (1132a to 1132c) for electrically connecting cables to an external device connection I / F 118 described later. On the other hand, the left wall surface 1140 of the housing 1100 is provided with a connection port for electrically connecting a cable 120c for the display 120 to an external device connection I / F 118 described later.

  In the following description, “operation button 108” is used when an arbitrary operation button is indicated among the operation buttons (108a to 108e), and “an arbitrary connection port is indicated among the connection ports (1132a to 1132c)”. This will be described using the connection port 1132 ”.

  Next, the arm 1200 is attached to the housing 1100 via the torque hinge 1210, and the arm 1200 can be rotated in the vertical direction with respect to the housing 1100 within a tilt angle θ1 of 135 degrees. Yes. FIG. 3 shows a state where the tilt angle θ1 is 90 degrees. The camera housing 1300 is provided with a built-in camera 112, which will be described later, and can capture images of users, documents, rooms, and the like. A torque hinge 1310 is formed in the camera housing 1300. The camera housing 1300 is attached to the arm 1200 via a torque hinge 1310. The camera housing 1300 is vertically and horizontally with respect to the arm 1200 within a range of a pan angle θ2 of ± 180 degrees and a tilt angle θ3 of ± 45 degrees with the state shown in FIG. It can be rotated.

  3 is merely an example, and the present embodiment is not limited to this appearance. Note that the relay device 30 and the management system 50 have the same appearance as the server computer, and thus the description of the appearance is omitted.

  FIG. 4 is a hardware configuration diagram of the terminal 10 according to an embodiment. The terminal 10 is a CPU 101 (Central Processing Unit) that controls the operation of the entire terminal 10, a ROM 102 (Read Only Memory) that stores programs used to drive the CPU 101 such as an IPL (Initial Program Loader), and is used as a work area for the CPU 101. RAM 103 (Random Access Memory), flash memory 104 for storing various data such as a program for the terminal 10, image data, and sound data, and reading or writing of various data to the flash memory 104 according to the control of the CPU 101 When selecting the media I / F 107 (Interface) for controlling reading or writing (storage) of data to the recording medium 106 such as SSD 105 (Solid State Drive), flash memory or IC card (Integrated Circuit Card), and the destination of the terminal 10 Operated by Operation button 108, and a network I / F 111 for the power switch 109 for switching ON / OFF of the power supply terminal 10, using the communication network 2 to the data communications that.

  The terminal 10 also includes a built-in camera 112 that captures an image of a subject under the control of the CPU 101 to obtain image data, an image sensor I / F 113 that controls driving of the camera 112, a built-in microphone 114 that inputs sound, a sound The built-in speaker 115 that outputs the sound, the sound input / output I / F 116 that processes the input / output of the sound signal between the microphone 114 and the speaker 115 according to the control of the CPU 101, and the image data on the external display 120 according to the control of the CPU 101 As shown in FIG. 4, a display I / F 117 for transmission, an external device connection I / F 118 for connecting various external devices, an alarm lamp 119 for notifying abnormality of various functions of the terminal 10, and each of the above components are shown. Bus line 110 such as an address bus and a data bus for electrical connection to .

  The display 120 is a display unit that displays an image of a subject. Examples of the display 120 include liquid crystal or organic EL (Organic Electroluminescence). The display 120 is connected to the display I / F 117 by a cable 120c. The cable 120c may be an analog RGB (VGA) signal cable, a component video cable, HDMI (High-Definition Multimedia Interface) or DVI (Digital Video). Interactive) signal cable may be used.

  The camera 112 includes a lens and a solid-state imaging device that converts light into electric charges and digitizes a subject image (video). As the solid-state imaging device, a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device) is used. Etc. are used.

  External devices such as an external camera, an external microphone, and an external speaker are electrically connected to the external device connection I / F 118 by a USB (Universal Serial Bus) cable or the like inserted into the connection port 1132 of the housing 1100. Can be connected to. When an external camera is connected, the external camera is driven according to the control of the CPU 101. Similarly, when at least one of an external microphone and an external speaker is connected, each is driven according to the control of the CPU 101.

  The recording medium 106 is detachable from the terminal 10. Further, as long as it is a non-volatile memory that reads or writes data according to the control of the CPU 101, not only the flash memory 104 but also an EEPROM (Electrically Erasable and Programmable ROM) or the like may be used.

  The communication protocol of the terminal 10 includes (1) SIP (Session Initiation Protocol), (2) H.323, (3) SIP extended protocol, (4) Instant Messenger protocol, (5) SIP MESSAGE. Protocols using methods, (6) Internet relay chat protocol (IRC (Internet Relay Chat)), (7) Instant messenger protocol extended protocol, etc. Among these, (4) Instant Messenger protocol is, for example, (4-1) XMPP (Extensible Messaging and Presence Protocol), or (4-2) ICQ (registered trademark), AIM (registered trademark), or Skype (registered) Trademark). Also, (7) Jingle is a protocol that is an extension of the instant messenger protocol, for example.

  FIG. 5 is a hardware configuration diagram of the management system 50 according to an embodiment. The management system 50 includes a CPU 201 that controls the overall operation of the management system 50, a ROM 202 that stores programs used to drive the CPU 201 such as an IPL, a RAM 203 that is used as a work area for the CPU 201, and various programs such as programs for the management system 50. HD 204 for storing data, HDD 205 (Hard Disk Drive) for controlling reading or writing of various data to the HD 204 according to control of the CPU 201, and media I for controlling reading or writing (storage) of data to the recording medium 206 such as a flash memory / F207, display 208 for displaying various information such as cursor, menu, window, character, or image, network I / F209 for data communication using communication network 2, character, A keyboard 211 having a plurality of keys for inputting values, various instructions, etc., a mouse 212 for selecting and executing various instructions, selecting a processing target, moving a cursor, etc., a CD as an example of a removable recording medium A CD-ROM drive 214 for controlling reading or writing of various data to / from a ROM 213 (Compact Disc Read Only Memory), and an address bus for electrically connecting the above components as shown in FIG. And a bus line 210 such as a data bus.

  Since the relay device 30 has the same hardware configuration as that of the management system 50, the description thereof is omitted.

<< Functional configuration >>
Next, a functional configuration in the communication system 1 will be described. FIG. 6 is a functional block diagram of the terminal 10 and the management system 50 that constitute a part of the communication system 1 according to the embodiment. In FIG. 6, the terminal 10 and the management system 50 are connected so that they can communicate via the communication network 2.

<Functional configuration of terminal>
The terminal 10 includes a transmission / reception unit 11, an operation input reception unit 12, a display control unit 14, and a storage / reading unit 19. Each of these units is a function realized by any one of the constituent elements shown in FIG. 4 operating according to a command from the CPU 101 according to a program expanded from the flash memory 104 onto the RAM 103. Further, the terminal 10 has a storage unit 1000 constructed by the ROM 102, the RAM 103, and the flash memory 104 shown in FIG.

  The transmission / reception unit 11 is realized by a command from the CPU 101 and a network I / F 111, and transmits / receives various information to / from a communication partner via the communication network 2.

  The operation input receiving unit 12 is realized by instructions from the CPU 101, operation buttons 108a, 108b, 108c, 108d, 108e, and a power switch 109, and receives various operation inputs by the user.

  The display control unit 14 is realized by an instruction from the CPU 101, the display I / F 117 and the sound input / output I / F 116, and performs control to output an image to the display 120.

  The storage / reading unit 19 is realized by an instruction from the CPU 101, and stores various data in the storage unit 1000 and performs processing for reading out various data stored in the storage unit 1000.

<Functional configuration of management system>
The management system 50 includes a transmission / reception unit 51, an authentication unit 52, a terminal management unit 53, a communication management unit 58, and a storage / readout unit 59. Each of these units is a function realized by any one of the constituent elements shown in FIG. 5 operating according to a command from the CPU 201 according to the program for the management system 50 expanded from the HD 204 onto the RAM 203. is there. In addition, the management system 50 includes a storage unit 5000 constructed by the HD 204. In the storage unit 5000, each DB is constructed with the following tables.

(Relay device management table)
FIG. 7A is a conceptual diagram showing a relay device management table. In the storage unit 5000, a relay device management DB 5001 is constructed by a relay device management table as shown in FIG. In the relay device management table, the relay device IDs of all the relay devices 30 managed by the management system 50, the operating state of the relay device 30, the IP address of the relay device 30, and the terminal 10 connected to the relay device 30 are displayed. Communication ID is associated and managed. The operating state includes “Online” indicating a working state and “Offline” indicating a non-operating state. Hereinafter, it is assumed that the relay device IDs of the relay devices 30a, 30b, 30c, and 30d are “111a, 111b, 111c, and 111d”, respectively. The communication ID is used in the communication system 1 to identify the communication destination terminal 10. As the communication ID, for example, identification information of the terminal 10, identification information of the user of the terminal 10, an account, or the like is used. In the following description, it is assumed that the communication IDs of the terminals 10aa, 10ab, 10ba, 10bb, 10ca, 10cb, 10da, and 10db are “01aa, 01ab, 01ba, 01bb, 01ca, 01cb, 01da, 01db”, respectively.

(Authentication management table)
FIG. 7B is a conceptual diagram showing an authentication management table. In the storage unit 5000, an authentication management DB 5002 is constructed by an authentication management table as shown in FIG. In the authentication management table, an authentication password is associated with each communication ID of all the terminals 10 managed by the management system 50 and managed.

(Terminal management table)
FIG. 7C is a conceptual diagram showing a terminal management table. In the storage unit 5000, a terminal management DB 5003 is constructed by a terminal management table as shown in FIG. In the terminal management table, the terminal name, the operating state of the terminal 10, and the IP address of the terminal 10 are managed in association with the communication ID of each terminal 10. The operating state of the terminal 10 is “Offline” indicating that the terminal 10 is not logged in to the management system 50, and “No” indicating that the terminal 10 is logged in to the management system 50 but is not participating in the session sed “ “Online” and “Chat” indicating that the terminal 10 is logged in to the management system 50 and is participating in the session sed are included.

(Destination list management table)
FIG. 7D is a conceptual diagram showing a destination list management table. In the storage unit 5000, a destination list management DB 5004 is constructed by a destination list management table as shown in FIG. In the destination list management table, the communication ID of the source terminal 10 and the communication ID of the terminal 10 that can be designated as the destination are managed in association with each other.

(Priority management table)
FIG. 7E is a conceptual diagram showing a priority management table. In the storage unit 5000, a priority management DB 5005 is constructed by a priority management table as shown in FIG. In this priority management table, the more the “same” of the four sets of dot addresses (Dot Address) out of the general IPv4 IP addresses in any terminal 10 and any relay device 30, the more the relay device The difference between the dot addresses and the priority are managed in association with each other so that the priority point when selecting 30 is high. This “same” means that the dot address portions are the same, and “different” means that the dot address portions are different. For example, in the address priority management table shown in FIG. 7E, when the three values are the same IP address from the top to the bottom of the dot address, the priority point is “5”. In the consent part of the dot address of the priority management table, “-” indicates that the values may be the same or different.

(History management table)
FIG. 7F is a conceptual diagram showing a history management table. In the storage unit 5000, a history management DB 5006 is constructed by a history management table as shown in FIG. The history management table is associated with the history ID of the history of communication between the terminals 10, the communication ID of the source terminal 10 in the communication, the communication ID of the destination terminal 10 in the communication, and the communication start time. Managed.

<Each functional configuration of the management system>
Next, each functional configuration of the management system 50 will be described in detail.

  The transmission / reception unit 51 is realized by a command from the CPU 201 and a network I / F 209, and transmits / receives various information to / from a communication partner via the communication network 2.

  The authentication unit 52 is realized by a command from the CPU 201 and authenticates the terminal 10 that is the login request source.

  The terminal management unit 53 is realized by a command from the CPU 201, and manages the operating state and the like of the terminal 10 in the terminal management table (see FIG. 7C).

  The communication management unit 58 is realized by a command from the CPU 201 and performs processing for establishing a session sed between the terminals 10.

  The storage / reading unit 59 is realized by an instruction from the CPU 201 and the HDD 205, or realized by an instruction from the CPU 201, and stores various data in the storage unit 5000 and extracts various data stored in the storage unit 5000. I do.

<< Processing of Communication System 1 >>
Next, processing in the communication system 1 will be described. FIG. 8 is a sequence diagram illustrating an example of processing in which the terminal 10 logs into the management system 50. The process in which the terminal 10 logs into the management system 50 will be described with reference to FIG.

  When the user of the terminal 10 turns on the power switch, the operation input accepting unit 12 accepts an operation for turning on the power and activates the terminal 10 (step S1). When the terminal 10 is activated, the operation input receiving unit 12 of the terminal 10 receives an input of a communication ID and a password by the user. The transmission / reception unit 11 of the terminal 10 transmits a login request including the communication ID received by the operation input reception unit 12 and the password to the management system 50 (step S2). Note that the communication ID and password of the terminal 10 may be stored in the storage unit 1000. In this case, the transmission / reception unit 11 of the terminal 10 transmits a login request including the communication ID read from the storage unit 1000 and the password to the management system 50.

  The transmission / reception unit 51 of the management system 50 receives the login request transmitted by the terminal 10. When receiving the login request, the management system 50 acquires the IP address of the terminal 10 that is the login request source.

  The authentication unit 52 of the management system 50 searches the authentication management table (see FIG. 7B) in the storage unit 5000 using the communication ID and password included in the login request as search keys, and stores the authentication management table in the authentication management table. Authentication is performed by determining whether the same communication ID and password pair is managed (step S3). Hereinafter, a case where the authentication unit 52 determines that the login request source has a valid usage right will be described.

  The terminal management unit 53 of the management system 50 includes, in the terminal management table (see FIG. 7C), the communication ID of the terminal 10 that is the login request source, “Online” that indicates the operating status of the login to the management system 50, The IP address of the login request source terminal 10 is associated and recorded (step S4). The transmission / reception unit 51 of the management system 50 transmits the authentication result information indicating the authentication result by the authentication unit 52 to the terminal 10 that is the login request source (step S5).

  The storage / reading unit 59 of the management system 50 searches the field of the communication ID of the transmission source in the destination list management table (see (D) of FIG. 7) using the communication ID of the terminal 10 of the login request source as a search key. The communication ID of the transmission destination that can be specified by the terminal 10 that is the login request source is read (step S6).

  The storage / reading unit 59 of the management system 50 searches the terminal management table (see (C) of FIG. 7) using each of the communication IDs of the destinations that can be specified read out in step S6 as a search key. The terminal name to be operated and the operating state are read (step S7).

  The transmission / reception unit 51 of the management system 50 includes the communication ID of the callee that can be specified read in step S6, the terminal name of the callee read in step S7, and the operating state, and can be specified. The destination information indicating the destination is transmitted to the login request source terminal 10 (step S8). The transmission / reception unit 11 of the login request source terminal 10 receives the destination information transmitted by the management system 50.

  FIG. 9 is a sequence diagram illustrating an example of processing for estimating the communication partner of the terminal 10. Hereinafter, an example of processing for estimating a communication partner after the terminal 10aa after the terminal 10aa logs in to the management system 50 and before transmission will be described. Note that the communication partner of another terminal 10 is also estimated by the same processing as described below after the login by the terminal 10 and before transmission.

  After logging in to the management system 50, the transmission / reception unit 11 of the terminal 10aa transmits to the management system 50 a selection request for the relay device 30 that relays communication by the terminal 10aa (step S21-1).

  The transmission / reception unit 51 of the management system 50 receives the selection request transmitted by the terminal 10aa. When the selection request is received, the communication management unit 58 of the management system 50 estimates a communication partner when the transmission source of the selection request starts communication later (step S22-1). Hereinafter, an example of a communication partner estimation method will be described.

  Hereinafter, arbitrary three terminals among the terminals 10 are represented as terminals x, y, and z, and communication IDs of the terminals x, y, and z are represented as “x, y, and z”, respectively. The communication management unit 58 of the management system 50 calculates an expected value V indicating the possibility that the terminals x and y start communication at time T by the function g (x, y, T) in the equation (1). The function g (x, y, T) is a function f (x, y, T) indicating the possibility that the terminal x transmits to the terminal y at the time T, and the terminal y can transmit to the terminal x at the time T. It is represented by a product of functions f (y, x, T) indicating sex.

  Of the equations (1), f (x, y, T) is represented by equation (2). Note that f (y, x, T) in the expression (1) is expressed in the same manner as the expression (2) except that x and y are replaced.

  In the formula (2), P (y) is an evaluation value of the possibility of transmitting to the terminal y based on the operating state of the terminal y. When the operating state of the terminal y managed in the terminal management table is “Online” or “Chat”, the evaluation value of P (y) is “1”, and the operating state of the terminal y is “Offline”. In this case, the evaluation value of P (y) is “0”. The evaluation value of P (y) can be transmitted to the terminal 10 whose operation state is “Online” or “Chat”, and cannot be transmitted to the terminal 10 whose operation state is “Offline”. 1 is assumed. That is, the value of P (y) is appropriately set according to the communication system 1.

In the equation (2), H (x, y) is an evaluation value of the possibility of making a call to the terminal y based on the history of the call made by the terminal x so far. H (x, y) is expressed by equation (3). In formula (3), H _N (x) is the total number of communication histories related to the terminal x among the communication histories between the terminals 10 managed in the history management table. The term “related to communication” is used to mean that the terminal 10 communicated as a transmission source or a transmission destination. In equation (3), H _N (x, y) is the total number of communication histories related to both the terminals x and y among the communication histories between the terminals 10 managed in the history management table. H _rank (x, y) is when the order of the oldest history is “1” and the order of the latest history is H _N (x) in the communication involving the terminal x managed in the history management table. , Shows the order of the latest communication history related to the terminals x and y. A specific example of H _rank (x, y) will be described later.

  (2) In the equation, R (x, y) is an evaluation value determined by whether the other of the terminals x and y is registered as one of the specifiable destinations of the terminals x and y in the destination management table. is there. When the terminal y is registered as a destination that can be designated by the terminal x and the terminal x is registered as a destination that can be designated by the terminal y, R (x, y) is “1”, otherwise In this case, R (x, y) is “0”.

  (2) In the equation, C (x, y, T) is an evaluation value indicating the possibility that the terminals x and y start communication at time T. C (x, y, T) is expressed by equation (4).

In formula (4), H _N (x, y) is the total number of communication histories related to the terminals x and y among the communication histories between the terminals 10 managed in the history management table. In equation (4), H _hm (x, y) is the total number of communication histories started between the terminals x and y at the time T among the communication histories between the terminals 10 managed in the history management table. is there.

  Hereinafter, a specific example of a method for calculating the expected value V will be described. The communication management unit 58 of the management system 50 reads the operating state of the terminal y from the terminal management table. When the read operation state is “Offline”, P (y) = 0, so that the communication management unit 58 outputs V = 0 from the equation (2).

  When the read operation state is not “Offline”, the communication management unit 58 of the management system 50 refers to the destination list management table, and the terminal y is registered as a destination that can be designated by the terminal x. It is determined whether the terminal x is registered as a destination that can be designated by the terminal y. If it is determined that the terminals x and y are not registered as destinations that can be specified with each other, R (x, y) = 0, so the communication management unit 58 outputs V = 0 from equation (2). To do.

When it is determined that the terminals x and y are registered as destinations that can be specified with each other, the communication management unit 58 of the management system 50 refers to the fields of the respective communication IDs in the history management table to determine the terminals x, The number of records in which both communication IDs “x, y” of y are recorded is specified as H _N (x, y). Table 1 shows an example of the history management table. In the example of Table 1, since there is no record in which both of the communication IDs “x, y” are recorded, the communication management unit 58 outputs H (x, y) = 0. When H (x, y) = 0 is output, the communication management unit 58 outputs V = 0 from equation (2).

Table 2 shows another example of the history management table. From the history management table of Table 2, the communication management unit 58 of the management system 50 outputs H _N (x, y) = 2. When H _N (x, y) ≠ 0 is output, the communication management unit 58 searches the history management table of Table 2 and sets the total number of communication histories related to the terminal x to H _N (x) = 5. Output. Further, the communication management unit 58 searches the history management table and outputs the latest history order H _rank (x, y) of the communication involving the terminals x and y. In the history management table of Table 2, the latest history of communication related to the terminals x and y is the history ID “004”. Since the history with the history ID “004” is the fourth oldest of the five communication histories related to the terminal x, the communication management unit 58 outputs H _rank (x, y) = 4.

The communication management unit 58 of the management system 50 applies the output H _N (x, y), H _rank (x, y), and H _N (x, y) to the equation (3) to obtain H (x, y ) Is calculated.

After calculating H (x, y), the communication management unit 58 of the management system 50 calculates C (x, y, T) based on the communication history of the terminals x and y and the current time T. In this process, the communication management unit 58 of the management system 50 searches the history management table of Table 2 and the start time of the record in which both the communication IDs of the terminals x and y are recorded is the current time. The number of records that coincide with the hour and minute of the time is output as H _hm (x, y, T).

The communication management unit 58 of the management system 50 performs fraction processing on the “minute” of the time when calculating H _hm (x, y, T). Although the rounding method is not particularly limited, in this embodiment, 56 minutes to 10 minutes are rounded to 0 minutes, 11 minutes to 25 minutes are rounded to 15 minutes, 26 minutes to 40 minutes are rounded to 30 minutes, and 41 minutes are rounded. Round from 55 to 45 minutes. Note that the fraction processing described above is an example assuming that the start of a conference is often set at 0, 15, 30, and 45 minutes, and can be appropriately changed according to the purpose.

The current time T is a time managed in the management system 50. When the current time T managed in the management system 50 is, for example, 8:56 on November 21, 2016, the time T is rounded to 9 o'clock by the above rounding process. In Table 2, the times “09:09, 09:03” corresponding to the history IDs “003, 004” are rounded to 9 o'clock. In this manner, the communication management unit 58 of the management system 50 starts the record of the history ID “003, 004” in which both the communication IDs of the terminals x and y are recorded in the history management table of Table 2. H _hm (x, y, T) = 2 is output as the number of records whose time is T = 9: 00. The communication management unit 58 of the management system 50 applies the output H _hm (x, y, T) = 2 and H _N (x, y) = 2 to the equation (4), and C ( x, y, T) is calculated.

  The communication management unit 58 of the management system 50 sets P (y) = 1, H (x, y) = 0.32, R (x, y) = 1, and C (x, y, T) = 1 ( 2) Multiply by applying the equation to calculate f (x, y, T) = 0.32. The communication management unit 58 calculates f (y, x, T) by the same process as described above. The communication management unit 58 applies the obtained f (x, y, T) and f (y, x, T) to the equation (1) and multiplies them to obtain V as g (x, y, T). Get.

FIG. 10 is a flowchart illustrating an example of a process for identifying the terminal y _max that maximizes the expected value V for starting communication with the terminal x. The communication management unit 58 of the terminal 10 sets “T” to the current time and “n, max” to 1 (step S22A).

The communication management unit 58 of the management system 50 repeats the following loop process for all terminals y _n (n = 1, 2,...) Managed in the management system 50. In this process, the communication management unit 58 to the terminal _{y n,} by the method described above, calculates the _{g (x, y n, T} ), to obtain the expected value _{V n} (step S22B). The communication management unit 58 determines whether or not the expected value V _n exceeds the maximum expected value V _max calculated in the loop processing so far (step S22C). If it is determined that the number has been exceeded, the communication management unit 58 replaces “max” with “n” (step S22D). Subsequently, “n” is replaced with “n + 1” (step S22E), and the loop processing is repeated. In this way, the communication management unit 58 specifies the terminal y _max having the largest expected value V for starting communication with the terminal x.

The case where the terminal y _max having the largest expected value V for starting communication with the terminal 10aa is estimated to be the terminal 10db by the above method will be described with reference back to FIG. The communication management unit 58 of the management system 50 selects the relay device 30 that relays communication between the terminals 10 based on the combination of the terminal 10aa as the relay device selection request source and the terminal 10db estimated in Step S22-1. (Step S23-1). Hereinafter, an example of processing for selecting the relay device 30 will be described. Note that the method for selecting the relay device 30 is not particularly limited as long as it is based on the terminal 10 that requested the selection of the relay device and the terminal 10 estimated as the communication partner.

  First, the communication management unit 58 of the management system 50 includes the communication ID “01db” of the terminal 10db estimated as the communication partner in the communication ID field of the relay device management table (see FIG. 7A). Judgment is made. When it is determined that the communication ID “01db” is included, the communication management unit 58 changes the relay device 30 of the relay device ID associated with the communication ID “01db” between the terminals 10 in the relay device management table. To the relay device 30 that relays the communication. When it is determined that the communication ID “01db” is not included, the communication management unit 58 of the management system 50 manages candidates for the relay device 30 to be selected in the relay device management table (see FIG. 7A). The relay devices 30a and 30c whose operating state is “Online” are narrowed down. Subsequently, the communication management unit 58 determines whether the IP address “1.2.1.3” of the terminal 10aa and the IP address “1.2.1.2” of the selected relay device 30a are different from each other. The priority management table is searched using “same. Same. Same. Different” as search keys, and the priority “5” when the terminal 10aa connects to the relay device 30a is read. Similarly, the communication management unit 58 sets the priority “1” when the terminal 10db is connected to the relay device 30a, the priority “1” when the terminal 10aa is connected to the relay device 30c, and the terminal 10db is the relay device 30c. Read the priority “3” when connecting to. Thereby, the communication management unit 58 adds the priority “5 + 1 = 6” when the terminals 10aa and 10db connect to the relay device 30a and the sum of the priority when the terminals 10aa and 10db connect to the relay device 30a. “1 + 3 = 4” is calculated. The communication management unit 58 selects the relay device 30a having the largest priority when connecting to the terminal 10aa and the terminal 10db as the relay device 30 that relays communication. The communication management unit 58 of the management system 50 associates the communication ID “01db” of the terminal 10db as the relay device selection request source and the relay device ID “111a” of the selected relay device 30a with each other (FIG. 7). (A)).

  The transmission / reception unit 51 of the management system 50 transmits a request for preparation for establishing communication between the terminals 10aa and 10db to the relay device 30a selected in step S24-1 (step S24-1). When the relay device 30a receives the preparation request, the relay device 30a generates connection information used when the terminal 10aa connects to the relay device 30a. The connection information includes, for example, the IP address of the relay device 30a, the conference room ID of the virtual conference room corresponding to the communication started by the terminal 10aa, the password used for logging in to the relay device 30a, and the like. The relay device 30a transmits the generated connection information to the management system 50 (step S25-1).

  The transmission / reception unit 51 of the management system 50 receives the connection information transmitted by the relay device 30a. Subsequently, the transmission / reception unit 51 of the management system 50 transmits the received connection information to the terminal 10aa as the selection request source of the relay device (step S26-1).

  The transmission / reception unit 11 of the terminal 10aa receives the connection information transmitted by the management system 50. The transmission / reception unit 11 of the terminal 10aa transmits a login request including the received connection information to the relay device 30a (step S27-1). When the terminal 10aa logs in to the relay device 30a, the session sed between the terminal 10aa and the relay device 30a is established (step S28-1). Even if the session sed between the terminal 10aa and the relay device 30a is established, the terminal 10aa does not transmit content data to the relay device 30 until a process for establishing communication between the terminals 10 described later is completed.

  Subsequently, after logging in to the management system 50, the transmission / reception unit 11 of the terminal 10db transmits to the management system 50 a selection request for the relay device 30 that relays communication by the terminal 10db (step S21-2).

  The transmission / reception unit 51 of the management system 50 receives the relay device selection request transmitted by the terminal 10db. The communication management unit 58 of the management system 50 estimates the communication partner when the relay device selection requester starts communication later (step S22-2). The method by which the communication management unit 58 estimates the communication partner side of the terminal 10db is the same as the method in step S22-1 described above. Hereinafter, a case where the communication management unit 58 estimates that the communication partner of the terminal 10db is the terminal 10aa will be described.

  The communication management unit 58 of the management system 50 selects the relay device 30 that relays communication between the terminals 10 based on the combination of the terminal 10db as the relay device selection request source and the terminal 10aa estimated in step S22-2. (Step S23-2).

  In this process, the communication management unit 58 of the management system 50 includes the estimated communication ID “01db” of the counterpart terminal 10aa in the communication ID field of the relay device management table (see FIG. 7A). Judge whether it is. The communication ID “01aa” is recorded in the relay device management table by the processing in step S23-1. Therefore, the communication management unit 58 sets the relay device 30a as the relay device 30 that relays communication between the terminals 10 based on the relay device ID “111a” associated with the communication ID “01aa” in the relay device management table. select. The communication management unit 58 of the management system 50 associates the communication ID “01db” of the terminal 10db as the relay device selection request source with the relay device ID “111a” of the selected relay device 30a (FIG. 7). (A)).

  The transmission / reception unit 51 of the management system 50 transmits connection information (see step S25-1) for connecting to the relay device 30a to the terminal 10db that is the selection request source of the relay device (step S26-2).

  The transmission / reception unit 11 of the terminal 10db receives the connection information transmitted by the management system 50. The transmission / reception unit 11 of the terminal 10db transmits a login request including the received connection information to the relay device 30a (step S27-2). When terminal 10db logs in to relay device 30a, session sed between terminal 10db and relay device 30a is established (step S28-2). Even if the session sed between the terminal 10db and the relay device 30a is established, the terminal 10db does not transmit content data to the relay device 30 until a process for establishing communication between the terminals 10 described later is completed.

  FIG. 11 is a sequence diagram illustrating an example of processing for establishing communication between terminals 10. Hereinafter, although the process for establishing communication between the terminals 10aa and 10db will be described, the process for establishing communication between the other terminals 10 is the same as the following process. The display control unit 14 of the terminal 10 causes the display 120 to output a destination selection screen including the destination information received in step S8. The user performs an operation of selecting a transmission destination from the screen of the display 120. The operation input accepting unit 12 of the terminal 10 accepts an operation of making a call to the destination selected by the user (step S31). Hereinafter, a case where the terminal 10db is selected as a transmission destination will be described.

  The transmission / reception unit 11 of the terminal 10aa transmits a message indicating transmission from the terminal 10aa to the terminal 10db to the management system 50. After transmitting the message, the display control unit 14 of the terminal 10aa causes the display 120 to output a dialog indicating that a call is being made.

  The transmission / reception unit 51 of the management system 50 receives a message indicating transmission from the terminal 10aa to the terminal 10db. After receiving the message, the communication management unit 58 of the management system 50 determines whether or not the source terminal 10aa and the destination relay device 30 of the destination terminal 10db match (step S33). In this process, the communication management unit 58 of the management system 50 refers to the relay device management table (see FIG. 7A), the communication ID “01aa” of the source terminal 10aa, and the destination terminal 10db. If the communication ID “01db” is recorded in the same record, it is determined that the connection-destination relay device 30 matches. Otherwise, it is determined that the connection-destination relay device 30 does not match. Hereinafter, a case will be described in which it is determined that the connection destination relay devices 30 match. Note that the case where it is determined that the relay apparatuses 30 to be connected do not match will be described later.

  When it is determined that the connection destination relay devices 30 match, the transmission / reception unit 51 of the management system 50 transfers a message indicating transmission from the terminal 10aa to the terminal 10db to the terminal 10db that is the transmission destination (step S41).

  The transmission / reception unit 11 of the terminal 10db receives a message indicating transmission from the terminal 10aa to the terminal 10db. The display control unit 14 of the terminal 10db displays a notification of transmission from the terminal 10aa. When the user performs an operation for responding to the notification, the operation input receiving unit 12 of the terminal 10db receives an input of a response operation. When the input of the response operation is accepted, the transmission / reception unit 11 of the terminal 10db transmits a message indicating the response of the terminal 10db to the transmission of the terminal 10aa to the management system 50 (step S42).

  When receiving the message indicating the response of the terminal 10db to the transmission of the terminal 10aa, the transmission / reception unit 51 of the management system 50 transfers the message to the terminal 10aa that is the transmission source (step S43). After the message is transferred, the terminal management unit 53 of the management system 50 records the communication IDs “01aa, 01db” of the source and destination terminals 10aa, 10db in the terminal management table (see FIG. 7C). The operation state field in each record is updated to “Chat” (step S44).

  After receiving the message indicating the response of the terminal 10db to the terminal 10aa, the transmission / reception unit 11 of the terminal 10aa transmits a conference participation request to the relay device 30a in order to acquire the content data of the destination terminal 10db (step S45). . Also, the transmitter / receiver 11 of the terminal 10aa obtains the content data including the image data Di of the image (video) captured by the own terminal and the sound data Ds of the sound collected by the own terminal in step S28-1. It transmits to the relay device 30a by the established session sed.

  After transmitting the message indicating the response of the terminal 10db to the transmission of the terminal 10aa, the transmission / reception unit 11 of the terminal 10db transmits a conference participation request to the relay device 30a in order to acquire the content data of the terminal 10aa as the transmission source (step S46). . In step S28-2, the transmission / reception unit 11 of the terminal 10db receives the content data including the image data Di of the image (video) captured by the terminal and the sound data Ds of the sound collected by the terminal. It transmits to the relay device 30a by the established session sed.

  The relay device 30 receives the image data Di and the sound data Ds sent from one of the terminals 10aa and 10db after receiving the conference participation request by the terminals 10aa and 10db, and transmits it to the other. Thereby, one transmission / reception part 11 of terminal 10aa, 10db receives the image data Di and sound data Ds transmitted by the other of terminal 10aa, 10db. The terminals 10aa and 10db output the other image data Di and sound data Ds. Thereby, each user of terminal 10aa and 10db can start the meeting between bases.

  FIG. 12 is a sequence diagram illustrating an example of processing in which the management system 50 changes the relay device to which the terminal 10 is connected. Hereinafter, the case where the terminal 10aa transmits to the terminal 10ba different from the terminal 10db estimated by the management system 50 (see Step S22-1) and the terminal 10ba is connected to the relay device 30c will be described. In this case, after the transmission by the terminal 10aa, in step S33, the communication management unit 58 of the management system 50 determines that the connection-destination relay device 30 does not match (NO), so the processing after the symbol A in FIGS. Starts.

  The transmission / reception unit 51 of the management system 50 transmits a notification indicating that the connection destination is changed from the relay device 30a to the relay device 30c and connection information for connecting to the relay device 30c to the terminal 10aa (step S34).

  The transmission / reception unit 51 of the terminal 10aa receives a notification indicating that the connection destination is changed from the relay device 30a to the relay device 30c and connection information for connecting to the relay device 30c. In response to receiving the notification of the change of the connection destination, the transmission / reception unit 51 of the terminal 10aa transmits a logout request to the relay device 30a (step S35). When receiving the logout request from the terminal 10aa, the relay device 30a performs logout processing of the terminal 10aa. Thereby, the session sed between the relay device 30a and the terminal 10aa is disconnected.

  The transmission / reception unit 11 of the terminal 10aa transmits a login request including connection information for connecting to the relay device 30c to the relay device 30c (step S36). When the terminal 10aa logs into the relay device 30c, the session sed between the terminal 10aa and the relay device 30c is established (step S37).

  The communication management unit 58 of the management system 50 relays the communication ID “01aa” of the terminal 10aa associated with the communication ID “111a” of the relay device 30a in the relay device management table (see FIG. 7A). Update to associate with the communication ID “111b” of the device 30c (step S38).

  After the terminal 10aa is connected to the relay device 30c, the process of establishing communication between the caller terminal 10aa and the callee terminal 10ba is that the callee is replaced with the terminal 10ba and the relay device is replaced with the relay device 30c. Except for this, it is the same as the processing after symbol A ′ in FIG.

<<< Effect of Embodiment >>>
According to the communication management method of the above embodiment, the management system 50 manages communication between the terminals 10. A history management DB 5006 (an example of a management unit) of the management system 50 manages a communication ID of a transmission source and a transmission destination, and a communication start time as communication history information by the terminal 10. The communication management unit 58 (an example of an estimation unit) of the management system 50 estimates the destination of the terminal 10 based on the history information managed in the history management DB 5006 (an example of an estimation process). The communication management unit 58 (an example of a selection unit) of the management system 50 selects the relay device 30 that relays communication between the terminals 10 based on the combination of the terminal 10 and the destination estimated by the communication management unit 58. (Example of selection process). The transmission / reception unit 51 (an example of a connection unit) of the management system 50 relays the terminal 10 by transmitting connection information for connecting the terminal 10 to the relay device 30 selected by the communication management unit 58 to the terminal 10. Connect to the device 30 (an example of connection processing). According to this method, since the terminal 10 can be connected to the relay device 30 before the terminal 10 is transmitted, it is possible to shorten the time from the transmission to the start of communication.

  The communication management unit 58 of the management system 50 estimates the destination of the terminal 10 before receiving the outgoing message transmitted from the terminal 10 after the terminal 10 logs into the management system 50. According to this method, since the terminal 10 can be connected to the relay device 30 before the terminal 10 is transmitted, it is possible to shorten the time from the transmission to the start of communication.

  A destination list management DB 5004 (an example of a management unit) of the management system 50 manages communication IDs of destinations that can be specified for each terminal 10. The communication management unit 58 of the management system 50 calculates the evaluation value R (x, y) based on the information indicating the destinations that can be specified and managed in the destination list management DB 5004, and estimates the destination of the terminal 10. According to this method, the communication partner of the terminal 10 can be estimated based on the registration status of the destination of the terminal 10.

  A terminal management DB 5003 (an example of a management unit) of the management system 50 manages information indicating the operating state of the terminal 10. The communication management unit 58 of the management system 50 estimates the destination of the terminal 10 based on information indicating the operating state managed in the terminal management DB 5003. According to this method, the communication partner of the terminal 10 can be estimated based on the operating state.

  The history information managed in the history management DB 5006 of the management system 50 includes communication start time information. The communication management unit 58 of the management system 50 estimates the communication partner of the terminal 10 based on the communication start time information managed in the history management DB 5006. According to this method, the communication partner of the terminal 10 can be estimated based on a history of outgoing calls such as regular video conferences.

  When the transmission destination included in the outgoing message is different from the transmission destination estimated by the communication management unit 58 and the transmission source and the transmission destination are connected to different relay devices 30, the communication management unit 58 of the management system 50 The relay device 30 that relays communication between the terminals 10 is selected based on the combination of the terminal 10 and the destination included in the outgoing message. The transmission / reception unit 51 of the management system 50 transmits the change notification of the connection destination relay device 30, thereby selecting the terminal 10 based on the combination of the terminal 10 and the transmission destination included in the outgoing message. 30. According to this method, even when the terminal 10 does not transmit as estimated, communication between the terminal 10 and the transmission destination can be established.

  After connecting to the relay device 30 selected in the management system 50, the terminal 10 waits for reception of a response to the outgoing call and starts transmitting content data to the relay device 30. According to this method, it is possible to prevent the communication between the terminal 10 and the destination terminal 10 from being started before the response.

<< Supplement of Embodiment >>
The terminal 10 and the management system 50 in each of the above embodiments may be constructed by a single computer, or may be constructed by a plurality of computers arbitrarily assigned by dividing each unit (function or means). Good.

  In addition, a recording medium storing a terminal program, a relay device program, and a communication management program of the communication system 1, and the HD 204 storing these programs are all known as program products in Japan. Or provided abroad.

  Each function of the embodiment described above can be realized by one or a plurality of processing circuits. Here, the “processing circuit” in this specification refers to a processor programmed to perform each function by software, such as a processor including an electronic circuit, or an ASIC designed to perform each function described above. A device such as (Application Specific Integrated Circuit) or a conventional circuit module is included.

JP 2012-75073 A

10 terminal 11 transmission / reception unit 12 operation input reception unit 14 display control unit 19 storage / reading unit 30 relay device 50 management system 51 transmission / reception unit 52 authentication unit 53 terminal management unit 58 communication management unit 59 storage / reading unit 1000 storage unit 5000 storage unit 5001 Relay device management DB
5002 Authentication management DB
5003 Terminal management DB
5004 Destination list management DB
5005 Priority management DB
5006 History management DB

Claims (10)

A communication management system for managing communication between communication terminals,
Management means for managing communication history information by the communication terminal;
Estimating means for estimating a communication partner of the communication terminal based on history information managed by the managing means;
A selection unit that selects a relay device that relays communication between communication terminals based on the combination of the communication terminal and the destination estimated by the estimation unit;
Connection means for connecting the communication terminal to the relay device selected by the selection means;
A communication management system. The said estimation means estimates the transmission destination of the said communication terminal before receiving the message of the transmission transmitted by the said communication terminal after the said communication terminal logs in to the said communication management system. Communication management system. The management means manages information indicating a destination that can be specified for each communication terminal;
The communication management system according to claim 1, wherein the estimation unit estimates a destination of the communication terminal based on information indicating the destination that can be specified, which is managed by the management unit. The management means manages information indicating an operating state for each communication terminal managed in the communication management system,
The communication management system according to any one of claims 1 to 3, wherein the estimation unit estimates a destination of the communication terminal based on information indicating the operation state managed by the management unit. The history information managed by the management means includes information on the start time of communication,
The communication management system according to any one of claims 1 to 4, wherein the estimation unit estimates a transmission destination of the communication terminal based on information on a start time of the communication managed by the management unit. When the destination included in the outgoing message is different from the destination estimated by the estimating means, the selecting means is based on a combination of the communication terminal and the destination included in the outgoing message. Select a relay device that relays communication between communication terminals,
The communication management system according to claim 2, wherein the connection unit connects the communication terminal to a relay device selected based on a combination of the communication terminal and a destination included in the outgoing message. A communication management system according to any one of claims 1 to 6;
The communication terminal;
A communication system. The communication system according to claim 7, wherein the communication terminal is connected to the relay device selected in the communication management system, waits for reception of a response to the call, and starts transmitting content data to the relay device. In a communication management system having a management means for managing history information of communication by a communication terminal,
An estimation process for estimating a communication partner of the communication terminal based on the history information managed by the management means;
A selection process for selecting a relay device that relays communication between communication terminals based on the combination of the communication terminal and the destination estimated by the estimation process;
A connection process for connecting the communication terminal to the relay device selected by the selection process;
Management method to execute. In a communication management system having a management means for managing history information of communication by a communication terminal,
An estimation process for estimating a communication partner of the communication terminal based on the history information managed by the management means;
A selection process for selecting a relay device that relays communication between communication terminals based on the combination of the communication terminal and the destination estimated by the estimation process;
A connection process for connecting the communication terminal to the relay device selected by the selection process;
A program that executes

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