JP2006140729A - Mobile communication system, its network apparatus, radio communication terminal, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely secure a line for emergency communication without generating congestion even at the occurrence of a disaster or the like, and to perform stable system operation. <P>SOLUTION: A terminal management database 131 for storing the IP addresses of radio IP telephone terminals and the propriety of transmission corresponding to respective regulation levels is prepared. A CPU 11 in a management server MSVa compares an inputted regulation revel with regulation levels stored in regulation level data 132 by a regulation level changing program 142 and accesses the terminal management database 131 on the basis of the compared result to retrieve a radio IP telephone terminal whose transmission is to be regulated. Then the CPU 11 prepares a transmission flag for regulating transmission and transmits the transmission flag to the retrieved radio IP telephone terminal. The radio IP telephone terminal receiving the transmission flag controls transmission regulation in accordance with the transmission flag. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mobile communication system using a private network constructed by a wireless LAN or the like, its network device, a wireless communication terminal, and a program.

  In the event of a disaster, it is very important for residents in the affected areas to be able to use information communication, particularly voice communication, for reasons such as safety confirmation and disaster information collection. However, in calls using landlines and mobile phones using the public network, communication traffic is concentrated from the whole country to the places where disasters occur, and congestion may occur, making it impossible for residents in the affected areas to make calls.

  Therefore, in order to avoid such a situation, it is considered to use a regional intranet operated independently by local governments in each region. A regional intranet is a system that allows local governments to connect government offices, public halls, educational facilities, hospitals, police, etc. via a network so that residents can obtain the information they need when they need it. Since this regional intranet is a unique communication network that can be occupied and used by residents in the region, the bandwidth inside the intranet is guaranteed.

  In addition, most conventional regional intranets are constructed by a wired LAN in which a LAN cable is laid for each terminal. However, recently, in order to cope with disasters and improve convenience, regional infrastructure using wireless LAN access points is gradually being developed.

  On the other hand, a service using a wireless IP telephone terminal equipped with a wireless LAN module has reached a technical level that can be put into practical use. However, if telephone calls are made simultaneously by a large number of terminals, there is a problem that the sound quality is deteriorated and the service cannot be performed. In view of this, a system has been proposed that enables stable operation by setting priority control information and allowable values of simultaneously connected terminals in an access point (see, for example, Non-Patent Document 1).

NIKKEI COMMUNICATIONS, “Priority Control Essential for Mobile IP Phones”, September 1, 2004, p. 70-71

  However, in the conventional system described above, priority control and simultaneous connection terminal control are performed at the access point, so in the event of a disaster, outgoing calls from many wireless communication terminals are performed simultaneously, and the load is concentrated on the access point. End up. For this reason, it becomes impossible to secure a line for emergency communication, which may cause a delay in disaster countermeasures.

  The present invention has been made paying attention to the above circumstances, and secures a line for emergency communication even when a disaster occurs, and a mobile communication system capable of stable operation, its network device, a wireless communication terminal, and Is to provide a program.

  In order to achieve the above object, a mobile communication system and its network device, wireless communication terminal and program according to the present invention comprise a plurality of wireless communication terminals and at least a private network for transferring information between these wireless communication terminals. A network device, and the network device of the private network stores transmission priorities preset for the plurality of wireless communication terminals. Then, based on the stored priority, a wireless communication terminal subject to outgoing call restriction is selected, and information for instructing outgoing call restriction is notified to the selected wireless communication terminal. On the other hand, the wireless communication terminal is configured to set its own terminal in a transmission restriction mode when information for instructing transmission restriction is notified from the network device of the private network.

  Therefore, according to the present invention, transmission restriction instruction information is notified to the wireless communication terminal subject to restriction according to the priority, thereby restricting transmission from the wireless communication terminal. For this reason, since transmissions from a large number of wireless communication terminals do not become congested in the event of a disaster or the like, it is possible to reduce the load on the network device, thereby reliably securing a line for emergency communication.

The present invention is also characterized by having the following various configurations.
In the first configuration, the network device of the private network further selects a wireless communication terminal to cancel the call restriction based on the stored priority, and the call restriction of the selected wireless communication terminal is selected. Notify the information to cancel. In addition, the wireless communication terminal cancels the transmission restriction mode of the terminal when the transmission restriction mode is set and the network device of the private network is notified of information instructing cancellation of the transmission restriction. .

  With this configuration, when there is no need for outgoing call restriction, the outgoing call restriction state of the wireless communication terminal is released according to the release instruction from the network device. For this reason, it is possible to reliably set the wireless communication terminal to the outgoing call restricted state during a period requiring outgoing call regulation. Further, when there is no need for outgoing call restriction, the outgoing call restriction state of the wireless communication terminal can be quickly released, and thus the user can quickly make a call from the own terminal.

  In the second configuration, when the network device and the wireless communication terminal of the private network have a function of performing communication with an upper network, the network device of the private network is configured such that the wireless communication terminal is outside the communication range of the private network. The wireless communication terminal that is determined to exist outside the communication area of the private network is notified of information that instructs the call restriction via the upper network.

  If comprised in this way, even if it is a case where a radio | wireless communication terminal exists out of the communicable area of a private network, transmission control information is notified via a high-order network. As a result, it is possible to reliably notify the radio communication terminal of a call restriction instruction, and to ensure a channel for emergency communication more reliably.

According to a third configuration, when the network device of the private network and the wireless communication terminal include means for communicating with the host network, the network device of the private network is configured such that the wireless communication terminal is outside the communication range of the private network. The wireless communication terminal determined to exist outside the communication area of the private network is notified of information for instructing cancellation of the transmission restriction via the upper network.
In addition, it is possible to reliably notify the wireless communication terminal of the instruction to cancel the outgoing call restriction.

According to a fourth configuration, the wireless communication terminal notifies the user of a message indicating that the outgoing call is restricted when the information indicating the outgoing call restriction is notified from the network device of the private network.
As a result, the user can instantly and clearly recognize that his / her terminal is restricted from outgoing calls, and can suppress irritation and the like for being unable to make outgoing calls.

In the fifth configuration, the wireless communication terminal notifies the user of a message indicating that the outgoing call restriction has been released when information for instructing the release of the outgoing call restriction is notified from the network device of the private network.
Thereby, since the user is notified that the outgoing call restriction of the terminal is released, the user can clearly recognize that the outgoing call restriction has been released.

  According to a sixth configuration, when the private network is configured by a wireless LAN and the wireless communication terminal has an IP (Internet Protocol) communication function capable of connecting to the wireless LAN, the network device of the private network Instruction information for restricting transmission by the IP communication function is notified to the selected wireless communication terminal. On the other hand, when the instruction information is notified from the network device of the private network, the wireless communication terminal sets the terminal to a mode for restricting transmission by the IP communication function.

  With this configuration, the present invention can also be applied to a case where the private network is configured by a wireless LAN and the wireless communication terminal has an IP communication function that can be connected to the wireless LAN.

  In short, according to the present invention, it is possible to provide a mobile communication system, a network device thereof, a wireless communication terminal, and a program capable of reliably securing a line for emergency communication and capable of stable operation even when a disaster occurs. it can.

(First embodiment)
FIG. 1 is a schematic configuration diagram showing a wireless IP telephone system employing a mobile communication system according to the first embodiment of the present invention. A management server MSVa and private networks LNW1 to LNWn constructed in each region are respectively shown. It is connected. The network device according to the present invention includes the management server MSVa, the private network server LSV1, and the access points AP1 to APi in FIG.

  The private networks LNW1 to LNWn are regional intranets in which government offices, public halls, educational facilities, hospitals, police, and the like are connected by a network in order to achieve administrative information and regional information. Since the private networks LNW2 to LNWn have the same configuration as the private network LNW1, the following describes the private network LNW1.

  The private network LNW1 includes a private network server LSV1 and connects the private network server LSV1 and wireless access points AP1 to APi installed on each floor to form a network. The access points AP1 to APi are also connected to each other, and the wireless IP telephone terminals MA1 to MAj can perform wireless communication via the access points AP1 to APi. Furthermore, since the private network server LSV1 is connected to the management server MSVa, wireless communication can be performed via the management server MSVa with the wireless IP telephone terminals existing in the other private networks LNW2 to LNWn.

  FIG. 2 is a block diagram showing a functional configuration of the management server MSVa. The management server MSVa includes a central processing unit (CPU) 11 such as a microprocessor. A data memory 13 a and a program memory 14 a are connected to the CPU 11 via a bus 12. Further, an input / output interface (input / output I / F) 15 and a first communication interface (first communication I / F) 16 are connected. Is connected.

  An input unit 151 such as a keyboard or a mouse is connected to the input / output I / F 15 and has a function of capturing information input from a user. Further, a display unit 152 constituted by a liquid crystal display unit (LCD) or the like is connected to the input / output I / F 15. The first communication I / F 16 communicates with the wireless IP telephone terminals MA1 to MAj via the private networks LNW1 to LNWn under the control of the CPU 11.

  The data memory 13a uses, for example, a RAM or a hard disk as a storage medium, and the terminal management database 131 and the outgoing call restriction level are stored in the data memory 13a. The terminal management database 131 is created for each of the private networks LNW1 to LNWn. FIG. 3 shows an example of the storage result of the terminal management database 131 in the private network LNW1. The IP addresses of wireless IP telephone terminals MA1 to MAj belonging to private network LNW1 and the availability of transmission at each restriction level are stored in association with the terminal ID. For example, in FIG. 3, level 0 is a normal time with no call restriction, and can be sent from all terminals (indicated by “◯”). The higher the numerical values of Level 1 and Level 2, the larger the disaster scale, and the number of terminals (indicated by “x”) subject to transmission restriction increases. The restriction level data 132 stores the current restriction level set by the system administrator.

The program memory 14a stores a terminal management database creation program 141, a restriction level change program 142, a call restriction terminal search program 143, and a call permission terminal search program 144 as control programs according to the present invention.
The terminal management database creation program 141 executes the process for creating the terminal management database 131 described above according to the data input operation of the system administrator using the input unit 151 and the display unit 152.

  The restriction level change program 142 is a resident program and operates as a waiting state for the restriction level input by the system administrator. When the restriction level is input from the input unit 151, the input restriction level is compared with the current restriction level stored in the restriction level data 132, and a call restriction terminal search program 143 or a call permission terminal search described later is performed. The program 144 is executed.

  The outgoing call restriction terminal search program 143 is executed when the input restriction level is changed to a level higher than the current restriction level, and searches for the wireless IP telephone terminals MA1 to MAj subject to outgoing restriction. On the other hand, the call permission notification program 144 is executed when the input restriction level is changed to a level lower than the current restriction level, and searches for the wireless IP telephone terminals MA1 to MAj to be permitted to make a call. It has the function to do.

FIG. 4 is a block diagram showing a functional configuration of the wireless IP telephone terminal MA1. Since the wireless IP telephone terminals MA2 to MAj have the same configuration as the wireless IP telephone terminal MA1, the following description will be made on the wireless IP telephone terminal MA1.
The wireless IP telephone terminal MA1 includes a CPU 21, a data memory 23 and a program memory 24a are connected via a bus 22, and an output I / F 25 and a first wireless communication I / F 26 are connected. A display unit 251 such as a liquid crystal display unit (LCD) is connected to the output I / F 25. The first wireless communication I / F 26 performs wireless communication with another wireless IP telephone terminal and the management server MSVa via the access point AP1 under the control of the CPU 21. The wireless communication standard between the wireless IP telephone terminal MA1 and the access point AP1 is IEEE802.11b or the like, and the voice communication protocol is VoIP (Voice over IP) that exchanges voice data in IP packets.

  The data memory 23 is composed of a RAM or the like, and stores a transmission flag 231. The outgoing flag 231 is a flag for restricting or permitting the outgoing voice call from the own terminal MA1, and has two states of “restricted” and “permitted”. Normally, it is in the “permitted” state, and it is possible to make a voice call. When “restricted”, the voice call from the terminal MA1 is prohibited.

The program memory 24a stores a first transmission flag reception program 240, a transmission restriction display program 241, a transmission restriction control program 242, a transmission permission display program 243, and a transmission permission control program 244 as programs according to the present invention.
The first transmission flag reception program 240 operates as a resident program, and performs processing for receiving a transmission flag transmitted from the management server MSVa via the first wireless communication I / F 26.

  The transmission restriction display program 241 displays a message using text data such as “cannot be transmitted due to a disaster” on the display unit 251 when the transmission flag 231 is in the “restricted” state. Further, the transmission restriction control program 242 performs control so as to prohibit transmission even when a transmission operation from the user is detected when the transmission flag 231 is in the “restricted” state. On the other hand, when the transmission flag 231 is in the “permitted” state, the transmission permission display program 243 displays a message using text data such as “transmission is possible” on the display unit 251. When the transmission flag 231 is in the “permitted” state, the transmission permission control program 244 cancels the transmission restriction performed by the transmission restriction control program 242 and performs a transmission operation according to a transmission operation from the user. To control.

Next, the operation of the wireless IP telephone system configured as described above will be described.
(1A) Creation of terminal management database
FIG. 5 is a flowchart showing the creation procedure and contents of the terminal management database 131 of the management server MSVa. The terminal management database 131 is created by an input operation by a system administrator. First, the CPU 11 of the management server MSVa executes the terminal management database creation program 141 and creates a database frame in step S4a. Then, in step S4b to step S4g, registration processing is performed for all wireless IP telephone terminals MA1 to MAj to be controlled. That is, for the wireless IP telephone terminal MA1, first, the CPU 11 of the management server MSVa accepts the IP address input from the input unit 151 by the system administrator in step S4c. Next, in step S4d, an input of call availability data for each restriction level is accepted. In step S4e, a terminal ID for the wireless IP telephone terminal MA1 is issued, and the previously input IP address and call availability data are associated with the issued terminal ID and written in the terminal management database 131 in step S4f. This process is repeated for all the wireless IP telephone terminals MA1 to MAj. FIG. 3 shows an example of the terminal management database 131 created in this way.

(1B) Call processing and call permission notification process
FIG. 6 is a flowchart showing a notification procedure of outgoing call restriction and outgoing permission for the wireless IP telephone terminals MA1 to MAj in the management server MSVa and the processing contents thereof. Prior to this, it is assumed that a disaster or the like has occurred and the system administrator has performed an operation for changing the restriction level using a keyboard or mouse provided in the management server MSVa.

  In step S5a, the CPU 11 of the management server MSVa executes the restriction level change program 142 and is in a waiting state for a restriction level change instruction from the system administrator. In response to an operation by the system administrator, the input from the input unit 151 is detected, and the input restriction level is received. Next, in step S5b, the restriction level data 132 stored in the data memory 13a is accessed, and the current restriction level is read. In step S5c, it is determined whether or not the input restriction level is higher than the read restriction level. If the input restriction level is high as a result of this determination, the process proceeds to step S5d, and the CPU 11 of the management server MSVa executes the outgoing call restriction terminal search program 143. Then, the terminal management database 131 is accessed to search for all the wireless IP telephone terminals that are prohibited from calling at the input restriction level. Next, after creating a transmission flag with “restriction” in step S5e, in step S5h the first communication I / F 16 sends the created transmission flag to all wireless IP telephone terminals subject to transmission restriction. To send through. Thereafter, in step S5i, the restriction level stored in the restriction level data 132 is updated to the input restriction level.

  On the other hand, if it is determined in step S5c that the input restriction level is lower than the read restriction level, the process proceeds to step S5f, and the CPU 11 of the management server MSVa executes the outgoing call permission terminal search program 144. Then, the terminal management database 131 is accessed to search for all terminals that are permitted to be transmitted at the input restriction level. Next, in step S5g, the transmission flag is created as “permitted”, and in step S5h, the created transmission flag is transmitted to the corresponding terminal via the first communication I / F 16. Thereafter, in step S5i, the restriction level table 13b is accessed and updated to the restriction level of the input department.

  Thus, every time a restriction level change is input by the system administrator, a terminal corresponding to outgoing restriction or outgoing permission is searched according to the inputted restriction level, and outgoing restriction or outgoing permission is found for the searched terminal. A transmission flag representing is transmitted. Next, the operation of the radio IP telephone terminals MA1 to MAj that have received the transmitted call flag will be described.

(1C) Call restriction and call permission operation
FIG. 7 is a flowchart showing the operation procedure and details of outgoing call restriction and outgoing call permission in the wireless IP telephone terminals MA1 to MAj. As described above, it is assumed that there is a change in the restriction level and a transmission flag indicating transmission restriction or transmission permission is transmitted from the management server MSVa to the wireless IP telephone terminal MA1.

  The CPU 11 of the wireless IP telephone terminal MA1 is in the execution state of the first transmission flag reception program 240, and is in a standby state for the transmission flag in step S6a. In this state, the transmission flag transmitted from the management server MSVa is received via the first wireless communication I / F 26. Next, in step S6b, it is determined whether or not the received transmission flag is “restricted”. In this determination, if the transmission flag is “restricted”, the process proceeds to step S <b> 6 c, the transmission restriction display program 241 is executed, and the transmission restriction information is displayed on the display unit 251. Then, in step S6d, the transmission restriction control program 242 is executed, and transmission restriction control is performed so that no transmission operation is performed when the user performs a transmission operation.

  On the other hand, if it is determined in step S6b that the call flag is “permitted”, the process proceeds to step S6e, and the CPU 11 of the wireless IP telephone terminal MA1 executes the call permission display program 243 and displays it on the display unit 251. Display outgoing call permission information. Then, in step S6f, the transmission permission control program 244 is executed, the transmission restriction performed in step S6d is canceled, and control is performed so as to perform a transmission operation according to a transmission operation by the user.

  As described above, in the first embodiment, the terminal management database 131 storing the IP address of the wireless IP telephone terminal and the availability of outgoing calls corresponding to each restriction level is provided. The CPU 11 of the management server MSVa compares the input restriction level with the restriction level stored in the restriction level data 132 by the restriction level change program 142. Based on this comparison, the terminal management database 131 is accessed to search for wireless IP telephone terminals that are subject to outgoing restriction or outgoing permission. Then, a transmission flag for restricting or permitting the transmission to the searched wireless IP telephone terminal is created and transmitted. The wireless IP telephone terminal that has received this call flag controls call restriction or call permission according to the call flag.

  Therefore, according to the first embodiment, the wireless IP telephone terminals MA1 to MAj are notified of a call restriction instruction in accordance with the priority order stored in the terminal management database 131 created in advance, whereby the wireless IP telephone terminal MA1. ~ Sends outgoing calls from MAj. As a result, it is possible to ensure an emergency call even when a disaster occurs. In addition, since the load is not concentrated on the access point or the like, a stable system operation can be performed without causing line down in an emergency.

  Furthermore, in this embodiment, the radio IP telephone terminals MA1 to MAj display a message indicating that the call is restricted or permitted depending on the received call flag. Thereby, not only the transmission restriction but also the user is notified of the restriction of the transmission or the transmission permission, so that it can be used in an emergency without causing confusion.

(Second Embodiment)
FIG. 8 is a schematic configuration diagram showing a radio IP telephone system employing a mobile communication system according to the second embodiment of the present invention. In the figure, the same parts as those in FIG.
The mobile phone public network PNW is a mobile communication network for mobile phone subscribers, and the management server MSVb and the wireless IP phone terminals MB1 to MB6 have a function of transmitting and receiving data via the mobile phone public network PNW.

  FIG. 9 is a block diagram showing a functional configuration of the management server MSVb. In the figure, the same parts as those in FIG. A second communication I / F 17 is newly connected to the CPU 11 of the management server MSVb. The second communication I / F 17 performs communication with the wireless IP telephone terminals MB1 to MB6 via the mobile telephone public network PNW under the control of the CPU 11. In addition to the terminal management database creation program 141, the restriction level change program 142, the outgoing call restriction terminal search program 143, and the outgoing call permission terminal search program 144, the transmission determination program 145 is newly stored in the program memory 14b.

  The transmission determination program 145 determines whether or not the first communication I / F 16 has transmitted through the private network LNW1 in the transmission of the transmission flag to the wireless IP telephone terminal described in (1B). If the transmission fails due to this determination, a transmission flag is transmitted via the mobile telephone public network PNW by the second communication I / F 17.

FIG. 10 is a block diagram showing a functional configuration of the wireless IP telephone terminal MB1. In the figure, the same parts as those in FIG. Further, since the wireless IP telephone terminals MB2 to MB6 have the same configuration as the wireless IP telephone terminal MB1, only the wireless IP telephone terminal MB1 will be described below.
A second wireless communication I / F 27 is newly connected to the CPU 21 of the wireless IP telephone terminal MB1. The second wireless communication I / F 27 communicates with the management server MSVb via the mobile phone public network PNW under the control of the CPU 21. In addition to the first transmission flag reception program 240, the transmission restriction display program 241, the transmission restriction control program 242, the transmission permission display program 243, and the transmission permission control program 244, the program memory 24b newly adds a second transmission flag. A reception program 245 is stored.

The second outgoing flag reception program 245 has a function of receiving the outgoing flag transmitted from the management server MSVb via the mobile phone public network PNW by the second wireless communication I / F 27.
Next, the operation of the wireless IP telephone system configured as described above will be described. Here, as shown in FIG. 8, radio IP telephone terminals MB1, MB3, MB5 exist outside the communicable area of private network LNW1. It is assumed that a disaster or the like occurs in this state, and a transmission flag notifying transmission restriction or transmission permission is transmitted to the wireless IP telephone terminal MB1 by the management server MSVb as described in (1B).

(2A) Transmission of outgoing flag using mobile phone public network PNW
FIG. 11 is a flowchart showing a notification procedure of transmission restriction and transmission permission using the mobile phone public network PNW by the management server MSVb and the processing contents thereof.
The CPU 11 of the wireless IP telephone terminal MB1 executes the transmission determination program 145, and determines whether or not the transmission of the transmission flag performed via the private network LNW1 by the first communication I / F 16 is successful. If it is determined that the transmission of the transmission flag is successful, the state transits to the above-described restriction level standby state. On the other hand, if the wireless IP telephone terminal MB1 is outside the communicable area of the private network LNW1, the CPU 11 of the wireless IP telephone terminal MB1 detects a transmission error in step S8a. Then, in S8b, the management server MSVb transmits the created call flag to the wireless IP phone terminal MB1 via the mobile phone public network PNW by the second communication I / F 17.

  Thereafter, in step S8c, the transmission flag is transmitted via the private network LNW1 by the first communication I / F 16. In step S8d, the transmission determination program 145 determines whether or not the transmission is successful. If a transmission error is detected again by this determination, the process proceeds to step S8e, and after a predetermined time has elapsed, a transmission flag is transmitted to the wireless IP telephone terminal MB1 by the first communication I / F 16 in step S8c. The above operation is repeated until the transmission succeeds via the private network LNW1 in the determination in step S8d.

(2B) Reception of outgoing flag using mobile phone public network PNW
FIG. 12 is a flowchart showing a reception procedure of outgoing call restriction and outgoing call permission notification using the mobile phone public network PNW in the wireless IP telephone terminal MB1, and its processing contents.
The CPU 21 of the wireless IP telephone terminal MB1 executes the second transmission flag reception program 245 as a resident program together with the first transmission flag reception program 240. Since the wireless IP telephone terminal MB1 exists outside the wireless communication area of the private network LNW1, in step S9a, the second wireless communication I / F 27 receives the transmission flag transmitted via the mobile telephone public network PNW. . And it is determined whether the transmission flag received by step S9b is "regulation". If the result of this determination is “restriction”, the process proceeds to step S9c, where the call restriction information is displayed on the display unit 251 via the output I / F 25. On the other hand, if it is determined in step S9b that the transmission flag is “permitted”, the process proceeds to step S9d, where the transmission permission information is displayed on the display unit 251.

  On the other hand, when the wireless IP telephone terminal MB1 has moved into the wireless communicable area of the private network LNW1, the first outgoing flag reception program 240 sets the outgoing flag transmitted from the management server at regular time intervals. Via the first wireless communication I / F 26 immediately. Then, the operations from Step S6a to Step S6f described in (1C) are performed.

  As described above, in the second embodiment, the management server MSVb and the wireless IP telephone terminals MB1 to MB6 have a function of performing communication by being connected via the mobile telephone public network PNW. Then, when the communication management server MSVb transmits a transmission flag to the wireless IP telephone terminal MB1 via the private network LNW1, it is determined whether or not the transmission is successful. If the transmission is unsuccessful as a result of this determination, the transmission flag is transmitted by the second communication I / F 17 via the mobile telephone public network PNW. Thereafter, the CPU 11 of the management server MSVb repeats the transmission of the transmission flag at a constant time interval until the transmission of the transmission flag is successful via the private network LNW1.

  Therefore, even when the wireless IP telephone terminals MB1 to MB6 exist outside the communicable area of the private network LNW1, the call restriction instruction and the call permission instruction are transmitted via the mobile telephone public network PNW. ~ Notified to MB6. For this reason, even when the wireless IP telephone terminals MB1 to MB6 move into the communicable area of the private network LNW1, the outgoing calls from the wireless IP telephone terminals MB1 to MB6 can be surely restricted. In addition, the wireless IP telephone terminals MB1 to MB6 that have moved out of the communicable area of the private network LNW1 can be surely notified of the outgoing call restriction release instruction, and thus the outgoing call restricted state is released. In addition, it is possible to prevent a problem that the outgoing call restriction state continues. That is, stable operation is possible without causing confusion due to inability to communicate.

(Third embodiment)
Since the configuration of the wireless IP telephone terminal system adopting the mobile communication system according to the third embodiment of the present invention is the same as that of the first embodiment, description will be made here with reference to FIG.
FIG. 13 is a block diagram showing a functional configuration of the management server MSVc in the third embodiment. In the figure, the same parts as those in FIG.

  In the data memory 13c, a department correspondence terminal management database 133 and a department-specific regulation level table 134 are stored. The department-corresponding terminal management database 133 stores the department data of the user who owns the wireless IP telephone terminals MAi to MAj in the terminal management database 131 in association with the terminal ID. FIG. 14 shows an example of the configuration of this department correspondence terminal management database 133. The division level restriction level table 134 stores restriction levels set for each division. FIG. 15 shows an example of the storage result of the departmental regulation level table 134.

  In addition to the outgoing call restriction terminal search program 143 and the outgoing call permission terminal search program 144, the program memory 14c newly stores a department-compatible terminal management database creation program 146 and a department-specific restriction level change program 147. The department-corresponding terminal management database creation program 146 performs an input reception process of the department data of the user who owns the wireless IP telephone terminals MAi to MAj in the registration process of the wireless IP telephone terminals MAi to MAj in the terminal management database creation program 141. It is added. An example of the department correspondence terminal management database 133 created by the department correspondence terminal management database creation program 146 is shown in FIG.

  On the other hand, the department-specific regulation level change program 147 operates as a resident program and accepts a regulation level change input to each department. FIG. 16 is a diagram illustrating an example of a restriction level change screen displayed on the display unit 152 provided in the management server MSVc. In this restriction level change screen, the organization structure is represented in a tree shape, and each department is provided with a selection button for setting the restriction level. The system administrator operates the mouse pointer with the input unit 151 such as a mouse to select this selection button, and changes the restriction level.

Next, the operation of the wireless IP telephone system configured as described above will be described.
(3) Restriction level change operation by restriction level change screen
When the restriction level is changed on the restriction level change screen, the department-specific restriction level change program 147 operating as a resident program takes in the department and restriction level changed by the operation of the input unit 151. The management server MSVb accesses the department-specific regulation level table 134 and reads the current regulation level of the changed department. Then, the input restriction level is compared with the read restriction level. If the input restriction level is high as a result of this determination, the department corresponding terminal management database 133 is accessed to search for a wireless IP telephone terminal belonging to the department and transmit a call flag (“regulation”). On the other hand, if the input restriction level is low as a result of the above determination, the department corresponding terminal management database 133 is accessed to search for a wireless IP telephone terminal belonging to the relevant department and transmit a call flag (“permitted”).

  As described above, in the third embodiment, the management server MSVc includes the department corresponding terminal management database 133 and the department-specific regulation level table 134. Then, in the restriction level change screen displayed by the department-specific restriction level change program 147, the changed department and restriction level are captured. The outgoing flag is transmitted to the wireless IP telephone terminal belonging to the department according to the taken department and the regulation level.

Therefore, the system administrator can dynamically change the outgoing call restriction level for each department in the business office or office where the private network is laid by operating the mouse or the like of the input unit 151 according to the disaster situation. it can.
(Other embodiments)
In each of the above-described embodiments, when a message for restricting transmission and permission for transmission is displayed on the display unit 251 by the transmission restriction display program 241 and the transmission permission display program 243, the data format is not limited to text data, but icons and images May be used. In addition, by using voice synthesis means, a voice message indicating the above-mentioned outgoing call restriction and outgoing call permission may be generated, and the generated voice message may be output from a speaker.

  Further, although the case where the system administrator changes the outgoing call restriction level has been described as an example, communication traffic information generated by the access points AP1 to APi is collected in the management server MSVa, and the collected communication traffic information is also stored. Alternatively, the outgoing call restriction level may be adaptively changed. If it does in this way, not only a disaster scale but an appropriate transmission regulation can be performed corresponding to a communication state.

In addition, although a system using a wireless LAN has been described as an example of the mobile communication system in each of the above embodiments, a local PHS (Personal Handyphone System) system or the like can also be used.
Further, the configuration of each system, the configuration of each database and table stored in the data memory provided in each management server and the items stored, the processing procedure and processing contents of various programs stored in the program memory of each management server However, various modifications can be made without departing from the scope of the present invention.

  In short, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in each embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is a schematic configuration diagram showing an embodiment of a wireless IP telephone system according to the present invention. The block diagram which shows the function structure of the information management server shown in FIG. The figure which shows an example of the terminal management database memorize | stored in the data memory shown in FIG. The block diagram which shows the function structure of the radio | wireless IP telephone terminal shown in FIG. The flowchart which shows the preparation procedure and the content of the terminal management database shown in FIG. The flowchart which shows the notification procedure and the content of transmission control in the information management server and transmission permission. The flowchart which shows the process sequence of the transmission control reception in a radio | wireless IP telephone terminal, and its processing content. The schematic block diagram which shows 2nd Embodiment of the radio | wireless IP telephone system concerning this invention. The block diagram which shows the function structure of the information management server shown in FIG. The block diagram which shows the function structure of the radio | wireless IP telephone terminal shown in FIG. The flowchart which shows the notification procedure of the transmission control and transmission permission via a mobile telephone public network in a management server, and the content. The flowchart which shows the reception procedure of the transmission restrictions and transmission permission via a mobile telephone public network in a wireless IP telephone terminal, and the content. The block diagram which shows the function structure of the management server used for 3rd Embodiment of the radio | wireless IP telephone system concerning this invention. The figure which shows an example of the terminal management database memorize | stored in the data memory shown in FIG. The figure which shows an example of the control level table memorize | stored in the data memory shown in FIG. The figure which shows an example of the screen structure at the time of the regulation level change displayed on the display part shown in FIG.

Explanation of symbols

  MSVa, MSVb, MSVc: management server, LNW1 to LNWn ... private network, LSV1 to LSVn ... private network server, AP1 to APi ... access point, MA1 to MAj, MB1 to MB6 ... wireless IP phone terminal, PNW ... mobile phone public Network, 11 ... CPU, 12 ... Bus, 13a, 13c ... Data memory, 131 ... Terminal management database, 132 ... Regulation level data, 133 ... Department corresponding terminal management database, 134 ... Regulation level table according to department, 14a, 14b, 14c ... Program memory, 141 ... Terminal management database creation program, 142 ... Regulation level change program, 143 ... Outgoing restriction terminal search program, 144 ... Outgoing permission terminal search program, 145 ... Transmission judgment program, 146 ... Department correspondence terminal management database creation program 147 ... Restriction level change program for each department, 15 ... Input / output I / F, 151 ... Input section, 152 ... Display section, 16 ... First communication I / F, 17 ... Second communication I / F, 21 ... CPU, 22 ... bus, 23 ... data memory, 231 ... transmission flag, 24a, 24b ... program memory, 240 ... first transmission flag reception program, 241 ... transmission restriction display program, 242 ... transmission restriction control program, 243 ... transmission Permission display program, 244 ... Transmission permission control program, 245 ... Second transmission flag reception program, 25 ... Output I / F, 251 ... Display section, 26 ... First wireless communication I / F, 27 ... Second wireless Communication I / F.

Claims (19)

A plurality of wireless communication terminals, and at least a network device of a private network for transferring information between these wireless communication terminals;
The network device of the private network is
Means for storing a priority of transmission set in advance for the plurality of wireless communication terminals;
Means for selecting a wireless communication terminal subject to outgoing call restriction based on the stored priority;
Means for notifying information for instructing outgoing calls to the selected wireless communication terminal,
The wireless communication terminal is
A mobile communication system comprising means for setting a local terminal to a transmission restriction mode when information for instructing transmission restriction is notified from a network device of the private network. The network device of the private network is
Based on the stored priority, means for selecting a wireless communication terminal to cancel the outgoing call restriction;
Means for notifying the selected wireless communication terminal of information for instructing cancellation of outgoing call restriction;
The wireless communication terminal is
Means for canceling the call restriction mode of the terminal itself when information instructing release of call restriction is notified from the network device of the private network in the state where the call restriction mode is set. The mobile communication system according to claim 1, wherein: In the case where the network device of the private network and the wireless communication terminal include means for communicating with the upper network,
The network device of the private network is
Means for determining whether the wireless communication terminal exists outside the communication range of the private network;
The wireless communication terminal determined to exist outside the communication area of the private network further includes means for notifying information instructing the outgoing call control via the upper network. Mobile communication system. In the case where the network device of the private network and the wireless communication terminal include means for communicating with the upper network,
The network device of the private network is
Means for determining whether the wireless communication terminal exists outside the communication range of the private network;
The wireless communication terminal determined to exist outside the communication area of the private network further includes means for notifying information for instructing cancellation of the call restriction via the upper network. The mobile communication system described. The wireless communication terminal is
4. The apparatus according to claim 1, further comprising means for notifying a user of a message indicating that outgoing calls are restricted when information indicating outgoing calls is notified from the network device of the private network. Mobile communication system. The wireless communication terminal is
The information processing apparatus further comprises means for notifying a user that a call restriction has been released when information indicating a call release restriction is notified from the network device of the private network. 4. The mobile communication system according to 4. When the private network is configured by a wireless LAN and the wireless communication terminal has an IP (Internet Protocol) communication function capable of connecting to the wireless LAN,
The network device of the private network notifies the selected wireless communication terminal of instruction information for restricting transmission by the IP communication function,
2. The mobile communication according to claim 1, wherein when the instruction information is notified from a network device of the private network, the wireless communication terminal sets the self-terminal to a mode for restricting transmission by an IP communication function. system. In a private network device that transfers information between a plurality of wireless communication terminals,
Means for storing a priority of transmission set in advance for the plurality of wireless communication terminals;
Means for selecting a wireless communication terminal subject to outgoing call restriction based on the stored priority;
Means for notifying the selected wireless communication terminal of information for instructing outgoing calls, and a network device for a private network. Based on the stored priority, means for selecting a wireless communication terminal to cancel the outgoing call restriction;
9. The network device for a private network according to claim 8, further comprising means for notifying the selected wireless communication terminal of information for instructing cancellation of outgoing call restriction. In the case where the network device of the private network and the wireless communication terminal include means for communicating with the upper network,
Means for determining whether the wireless communication terminal exists outside the communication range of the private network;
9. The information processing apparatus according to claim 8, further comprising: a unit that notifies the wireless communication terminal determined to exist outside the communication range of the private network via the host network, the information instructing the outgoing call restriction. Self-supporting network equipment. In the case where the network device of the private network and the wireless communication terminal include means for communicating with the upper network,
Means for determining whether the wireless communication terminal exists outside the communication range of the private network;
The wireless communication terminal determined to exist outside the communication area of the private network further includes means for notifying information instructing cancellation of the outgoing call restriction via the upper network. 9. The network device of the private network according to 9. A plurality of wireless communication terminals, and at least a network device of a private network that transfers information between these wireless communication terminals, and the network device has a priority of transmission set in advance for the plurality of wireless communication terminals A means for storing a degree, a means for selecting a wireless communication terminal subject to outgoing call restriction based on the stored priority, and information for instructing outgoing call restriction to the selected wireless communication terminal A wireless communication terminal used in a mobile communication system comprising:
A wireless communication terminal comprising: means for setting a local terminal in a transmission restriction mode when information for instructing transmission restriction is notified from a network device of the private network. When the network device further comprises means for notifying the selected wireless communication terminal of information for instructing cancellation of outgoing call restriction,
The information processing apparatus further comprises means for canceling the call restriction mode of the own terminal when the network device of the private network is notified of information instructing to release the call restriction while the call restriction mode is set. The wireless communication terminal according to claim 12.   13. The wireless communication system according to claim 12, further comprising means for notifying a user that a call is restricted when information indicating a call restriction is notified from a network device of the private network. Communication terminal.   14. The information processing apparatus according to claim 13, further comprising means for notifying a user of a message indicating that the call restriction has been released when information for instructing the release of the call restriction is notified from the network device of the private network. The wireless communication terminal described. A program used in a network device of a private network that transfers information between a plurality of wireless communication terminals,
A process of storing the input priority in association with the plurality of wireless communication terminals according to a priority setting input operation;
Based on the stored priority, a process of selecting a wireless communication terminal subject to outgoing call regulation,
A program for causing the network device to execute a process of notifying the selected wireless communication terminal of information for instructing outgoing call restriction. Based on the stored priority, a process of selecting a wireless communication terminal to cancel the outgoing call restriction,
17. The program according to claim 16, further causing the network device to execute a process of notifying the selected wireless communication terminal of information for instructing cancellation of outgoing call restriction. In the case where the network device of the private network and the wireless communication terminal include means for communicating with the upper network,
A process for determining whether or not the wireless communication terminal is outside the communication range of the private network;
The network device further causes the network device to execute a process of notifying a wireless communication terminal determined to exist outside the communication range of a private network via the higher-level network, the information instructing the outgoing call restriction. Item 16. The program according to Item 16. In the case where the network device of the private network and the wireless communication terminal include means for communicating with the upper network,
A process for determining whether or not the wireless communication terminal is outside the communication range of the private network;
Causing the network device to further execute a process of notifying the wireless communication terminal determined to exist outside the communication area of the private network via the higher-level network, the information instructing cancellation of the outgoing call restriction; and The program according to claim 17.

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