JP2006129158A - On-site telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a call by using a general mobile phone as an IP phone without being conscious of types such as an extension call, an outside call, and a general call.
When a storage medium 2 provided by an IP mobile telephone company 20 is set in a general mobile phone mobile phone 3a to 3n and each of the mobile phone mobile phones 3a to 3n enters a place 19, a foreign agent 12. The proxy home agent 13 accommodates them, and when there is a call request with the mobile phone in the place 19 as the caller, it checks whether the mobile phone that is the callee is in the place 19 and this is If it is 19, use LAN 4 to make a call, and if the mobile phone that is the call destination is outside the hall 19, the call packet is transferred to the IP mobile telephone company 20 via the Internet line 17 and the call is made. I do. [Selection] Figure 1

Description

  The present invention relates to an on-site telephone system used in a factory or on-site.

In recent years, with the spread of Internet technology, the quality of telephone calls and the like has greatly improved, so IP telephones have been attracting attention and have begun to be used in companies and homes.
JP 2002-164934 A

  By the way, since such IP telephones are used by being connected to the Internet line, they should be used only in a fixed place or a limited area such as a personal computer or a telephone connected to the Internet line. I can't. For this reason, in places where the telephones cannot be fixed, such as in places where the equipment is frequently rearranged, such as in factories, etc. There was also a problem that the installation location of the machine had to be changed and the usability was not good.

  Thus, conventionally, IP telephones are mostly connected by wire, and the development of IP mobile telephones that can be used for both internal and external calls and general calls is eagerly desired.

  In view of the above circumstances, the present invention makes it possible to use a general mobile phone as an IP phone without being accommodated in a malicious private base station antenna, and to recognize whether it is an extension call, an external call, or a general call. The purpose is to provide an on-site telephone system that can make a call without any problem.

  In order to achieve the above object, according to the present invention, identification data is given to a mobile phone in an on-site telephone system for making a call using each mobile phone brought into a predetermined area as an IP mobile phone. A storage medium, a LAN that is laid in the predetermined area and supports packet communication between the devices in the predetermined area, and is connected to the LAN and arranged in the predetermined area, and is a callable area A private base station device that transmits and receives radio signals to and from the mobile phone in the network, and is connected to the LAN and exchanges data with the mobile phone via the private base station device and provides the data to the mobile phone A management device for providing a care of address when the ID data being used is usable within the predetermined area; N is connected to N, and the management device receives a call request from the mobile phone to which a care-of address is given, and checks whether the call destination is another mobile phone in the predetermined area. When the call destination is another mobile phone in the predetermined area, the call source's care of address is used to make a call between the call source mobile phone and the call destination mobile phone. And when the call destination is a mobile phone other than the mobile phone in the predetermined area, the IP address of the call destination is sent to the IP mobile telephone company via the Internet line, and the call source mobile phone and It is characterized by having an extension / outside line switching device for making a call with a mobile phone of a call destination.

  According to the present invention, a general mobile phone can be used as an IP phone without being accommodated in a malicious private base station antenna, and without being aware of whether it is an extension call, an external call, or a general call. You can make a call.

  In addition, the billing system can be optimized according to whether the call with the callee is an internal line, an external line, or a general call, and optimal charging according to the service content can be performed.

  FIG. 1 is a block diagram showing an embodiment of an in-field telephone system according to the present invention. In the following description, ID data refers to identification data for preventing an outsider's mobile phone from being accommodated in a private predetermined area, and refers to an ID of a company or the like. The telephone ID indicates a number unique to the device such as a telephone number.

  The on-site telephone system 1 shown in this figure has a storage medium 2 provided by the IP mobile telephone company 20 (see FIG. 4) in a state where ID data for identification is stored, and a general storage medium 2 is set. Mobile phones 3a to 3n, a plurality of Ethernet cables 5a and 5b laid in the hall 19 and constituting the LAN 4, and a designated node 6 among the nodes 6 constituting the Ethernet cables 5a and 5b. Are connected to each other, and a router device 7 that enables packet exchange between the devices connected to the Ethernet cables 5a and 5b, and general mobile phones 3a to 3n installed in various places in the field are within communication range. A plurality of private base station antennas 8a to 8m for transmitting and receiving radio signals to and from each of the mobile phones 3a to 3n, and each Ethernet cable 5a. Storage medium 2 set in each mobile phone 3a-3n that is connected to a designated node 6 among the nodes 6 constituting 5b and is within the communication range of each private base station antenna 8a-8m Based on the ID data, it is determined whether or not each of the cellular phones 3a to 3n can be accommodated. When the cellular phones 3a to 3n can be accommodated, they are accommodated and connected to the respective cellular phones 3a to 3n and the Ethernet cables 5a and 5b. A plurality of base stations 9a to 9m that support data exchange with each device.

  Further, the on-site telephone system 1 stores the same ID data as the ID data in the storage medium set in the mobile phones 3a to 3n permitted to be used in the on-site 19, and the ID confirmation is performed from each base station 9a to 9m. When there is a request, it is determined whether or not the ID data supplied together with this ID confirmation request matches one of the pre-registered ID data. A plurality of IP telephones 11 connected to the designated node 6 and used as telephones among the nodes 6 constituting the Ethernet cables 5a and 5b, and the Ethernet cables 5a and 5b. Of each node 6 connected to the designated node 6 and connected to each Ethernet cable 5a, 5b. While dynamically assigning a P address, the installed foreign agent 12 gives a care of address to each of the mobile phones 3a to 3n, and the installed proxy home agent 13 determines the call destination. Then, the devices connected to the Ethernet cables 5a and 5b and the Internet line 17 (see FIG. 4) via the network server devices 14a and 14b that perform processing for sending packets and the like and the access server device 16 (see FIG. 4). ) Connected to the server device 18 (see FIG. 4) on the IP mobile telephone company 20 side.

  Next, the operation of the on-site telephone system 1 will be described with reference to the block diagram shown in FIG. 1, the flowcharts shown in FIGS. 2 and 3, and the schematic diagrams shown in FIGS.

  First, after ID data for identification is stored in the storage medium 2 in the IP mobile telephone company 20, it is distributed to the holders of the respective mobile phones 3a to 3n, and the in-site telephone system 1 is transmitted from the IP mobile telephone company 20. ID data is notified to the side and registered in each of the ID authentication devices 10a to 10m.

  Next, when the storage medium 2 distributed from the IP mobile telephone company 20 is set by any one of the mobile phones 3a to 3n, for example, the owner of the mobile phone 3a, as shown in the schematic diagram of FIG. In addition, wireless communication is started between the mobile phone 3a and the public base station antenna 21 on the IP mobile telephone company 20 side that covers the place where the owner of the mobile phone 3a is, for example, a home, etc. It is checked whether the telephone ID 3a is one of the telephone IDs assigned by the IP mobile telephone company 20, and the telephone ID of the storage medium 2 set in the mobile phone 3a is the telephone ID assigned by the IP mobile telephone company 20 The mobile phone 3a and the communication line on the IP mobile telephone company 20 side are established via the public base station antenna 21, and the home network Click 22 is set.

  Thereafter, the foreign agent 23 on the IP mobile telephone company 20 side checks whether or not a unique IP address indicating a physical network address is assigned to the mobile phone 3a, and the IP address is assigned to the mobile phone 3a. If not, a care-of address is assigned to the mobile phone 3 a and registered in the home agent 24.

  Next, when the mobile phone 3a is off-hooked at home or the like and a call request is issued, the home agent 24 on the IP mobile telephone company 20 side uses the call destination address added to the call data from the mobile phone 3a, After the routing is performed, packetized call data is transmitted to a destination IP phone, for example, the mobile phone 3c, and a call is performed. The mobile phone 3a, The telephone ID of 3c and the amount of data are collected, and a totaling process that is a basis for charge calculation is performed.

  In addition, the owner of the mobile phone 3a enters the hall 19 away from his / her home, etc., and, as shown in the flowchart of FIG. 2, one within each call range covered by each of the private base station antennas 8a to 8m, for example, When entering the call range covered by the private base station antenna 8m, wireless communication is started between the private base station antenna 8m covering the call range and the mobile phone 3a (step S1).

  Then, each ID data stored in the ID authentication device 10a is referred to by the base station 9a arranged in the hall 19, and the ID data of the storage medium 2 set in the mobile phone 3a is used in the hall 20. If the ID data of the storage medium 2 set in the mobile phone 3a is one of the ID data that can be used in the hall 19, the foreign agent 12 is newly checked. The mobile phone 3a is notified that the mobile phone 3a has entered the callable range, a care-of address is assigned to the mobile phone 3a (step S2), and the router device 15, the access server device 16, Awareness newly assigned via the Internet line 17, server device 18, communication line, etc. The address (care of address) and the telephone ID are notified to the home agent 24 on the IP mobile telephone company 20 side, and to the proxy home agent 13 on the site 19, and the call permission of the mobile phone 3 a is assigned to the 19th site To the proxy agent 13 (step S3).

  Thereafter, the cellular phone 3a is off-hooked and a call request is issued in the format shown in FIG. 5. When this is received by the private base station antenna 8m as shown in the flowchart of FIG. After the call request is encapsulated, it is sent out on the Ethernet cable 5a and transferred to the proxy home agent 13 on the site 19 side.

  Then, the proxy home agent 13 decapsulates the packet, the call destination address is checked against the home addresses indicating the mobile phones 3b to 3n in the hall 19, and the home address that matches the call destination address is found. If there is, it is determined that the call is an extension call (step S12), a care-of address indicating the home address of the call source, a care-of address indicating the home address of the call destination, and call data. Are created (step S13).

  Next, the packet is encapsulated by the proxy home agent 13, sent out on the Ethernet cable 5 a, and transferred to the base station 9 a that accommodates the mobile phone, for example, the mobile phone 3 b, to release the encapsulation. After that, the call is sent to the mobile phone 3b as the call destination via the private base station antenna 8a.

  Further, when the proxy home agent 13 collates the call destination address of the off-hook mobile phone 3a with the home address indicating each of the mobile phones 3b to 3n in the hall 19, the home address that matches the call destination address is obtained. If not (Step S12), the proxy home agent 13 causes the home agent 24 on the IP mobile phone company 20 side to include the care-of address of the caller, the telephone ID as the callee address, and the call data. A destination packet is created and encapsulated, and then transmitted to the Internet line 17 via the router device 15 and the access server device 16.

  Then, the packet sent from the router device 15 is routed on the Internet line 17 and transferred to the home agent 24 via the server device 18, and the call destination address in the packet is registered as a care-of address (care of address). ) And a mobile phone, for example, the mobile phone 3c, in which a packet including the care-of address, the care-of address of the caller, and the call data is called. After being transferred to the accommodated public base station antenna 21 side and decapsulated, it is sent to the mobile phone 3c as the call destination, and the call is started.

  At this time, the caller's care-of address sent from the public base station antenna 21 is cached by the mobile phone 3c as the call destination, and the care-of address is used thereafter to call the call. While the original call is continued, the dedicated server device collects the telephone IDs of the mobile phones 3a and 3c and the amount of data, and performs a totaling process that is the basis of charge calculation.

  In parallel with this operation, the home agent 24 on the IP mobile telephone company 20 side includes the care-of address of the call source and the care-of address of the call destination, and sends the call source to the destination. The response packet is generated and encapsulated, and then transmitted to the Internet line 17 via the server device, transferred to the proxy home agent 13 via the access server device 16 and the router device 15, The decapsulation is released by the proxy home agent 13 and the caller's care-of address and the callee's care-of address are analyzed, and then the callee's care-of address (care of address) is analyzed. address), a packet destined to the caller's care of address is generated and encapsulated and sent over the Ethernet cable 5a. It is.

  Then, the base station 9m that accommodates the caller mobile phone 3a captures this packet, releases the encapsulation, and sends it to the caller mobile phone 3a via the private base station antenna 8m. Then, a care-of address of the call destination is cached in the mobile phone 3a.

  Thereafter, the cellular phone 3a uses the care-of address of the call destination to continue the call with the call destination (step S15).

  As described above, in this embodiment, the storage medium 2 provided from the IP mobile phone company 20 is used as a general mobile phone, for example, the mobile phones 3a to 3a provided from the IP mobile phone company 20 having a call range in each major city. When the telephone set is set to 3n, when calling from a mobile phone as a call source, eg, a mobile phone 3a, to a mobile phone as a call destination, eg, mobile phones 3b to 3n, these mobile phones 3b to 3n If it is within the callable range of the antennas 8a to 8m, the foreign agent 12 and the proxy home agent 13 installed in the network server devices 14a and 14b connected to the LAN 4 can make a call, and the mobile phone that is the call destination The telephones 3b to 3n are outside the communication range of the private base station antennas 8a to 8m. For example, a packet is sent from the proxy home agent 13 on the site 19 side to the Internet line 17, and the home agent 24 of the IP mobile telephone company 20 transfers the packet to the mobile phones 3b to 3n as call destinations. Therefore, it is possible to use general mobile phones 3a to 3n as IP telephones without being accommodated in a malicious private base station antenna, and whether it is an extension call, an external call, or a general call. You can make a call without being conscious of it.

  In the above-described embodiment, when an outside line call and a general call are performed between the mobile phones 3a to 3n, the telephone ID and the data amount of the mobile phone that is making the call are collected by the dedicated server device. Therefore, depending on the number of private base station antennas 8a to 8m constituting the on-site telephone system 1, it is only necessary to pay an extension call charge fixed to the IP mobile telephone company 20 side. Depending on whether the call is an internal line, an external line, or a general call, the billing system can be optimized, thereby making it possible to perform optimum billing according to the service content.

  In the above-described embodiment, the packets sent on the Ethernet cables 5a and 5b and the packets sent on the Internet line 17 are encapsulated. Therefore, the communication source address, the communication destination address, the communication content Etc. can be secured.

  In the above-described embodiment, when each mobile phone 3a-3n enters the callable range of each private base station antenna 8a-8m, the foreign agent 12 on the site 19 side unconditionally cares about the address (care of 6) using a private priority method, a priority method that prioritizes the area designated by the selection button of each of the mobile phones 3a to 3n, an antenna priority method during a call, etc. In addition, when each mobile phone 3a-3n enters the callable range of each private base station antenna 8a-8m, each private base station antenna 8a-8m or IP mobile telephone company 20 depends on the designated priority method. One of the public base station antennas 21 provided on the side may be prioritized.

  As a result, even if the owner of each of the mobile phones 3a to 3n frequently goes in and out of the hall 19, depending on the usage status of each of the mobile phones 3a to 3n, the on-site phone system 1 side, the IP mobile phone company 20 side, The call permission can be exchanged smoothly between the two.

  In the above-described embodiment, the foreign agent 12 and the proxy home agent 13 are installed in the network server devices 14a and 14b. However, as long as the server device is connected to the LAN 4, the foreign agent is assigned to any server device. 12. Even if the proxy home agent 13 is installed, the same effect as the above-described embodiment can be obtained.

  In the above-described embodiment, the ID authentication devices 10a to 10m are arranged for each of the base stations 9a to 9m. However, one of the Ethernet cables 5a and 5b constituting the LAN 4 is connected to one unit. An ID authentication device may be connected and shared by the base stations 9a to 9m.

It is a block diagram which shows one Embodiment of the in-site telephone system by this invention. It is a flowchart which shows the telephone accommodation procedure of the on-site telephone system shown in FIG. It is a flowchart which shows the telephone call procedure of the in-site telephone system shown in FIG. It is explanatory drawing which shows the telephone call operation | movement of the in-site telephone system shown in FIG. It is explanatory drawing which shows an example of the packet used with the in-site telephone system shown in FIG. It is explanatory drawing which shows other embodiment of the in-site telephone system by this invention.

Explanation of symbols

1: On-site telephone system 2: Storage medium 3a-3n: Mobile phone 4: LAN
5a, 5b: Ethernet cable 6: Node 7: Router device 8a-8m: Private base station antenna (private base station device)
9a to 9m: Base station (private base station device)
10: ID authentication device (private base station device)
11: IP telephone 12: Foreign agent (management device)
13: Proxy home agent (extension / external line switching device)
14a, 14b: Network server device 15: Router device 16: Access server device 17: Internet line 18: Server device 19: On-site 20: IP mobile telephone company 21: Public base station antenna 22: Home network 23: Foreign agent 24: Home Agent

Claims (2)

In an on-site telephone system that uses each mobile phone brought into a predetermined area as an IP mobile phone to make a call,
A storage medium that provides identification data to the mobile phone;
A LAN that is laid in the predetermined area and supports packet communication between devices in the predetermined area; and
A private base station apparatus that is connected to the LAN and is arranged in the predetermined area and transmits and receives radio signals to and from the mobile phone in the callable area;
When it is connected to the LAN and exchanges data with the mobile phone via the private base station device, and ID data given to the mobile phone is usable within the predetermined area, A management device that provides a care of address;
When there is a call request from the mobile phone connected to the LAN and given a care-of address by the management device, it checks whether the call destination is another mobile phone in the predetermined area. When the call destination is another mobile phone in the predetermined area, the call source's care of address is used to make a call between the call source mobile phone and the call destination mobile phone. When the call destination is a mobile phone other than the mobile phone in the predetermined area, the IP address of the call destination is sent to the IP mobile telephone company via the Internet line, and the mobile phone of the call source An internal / external line switching device for making a call between the mobile phone and the other party's mobile phone;
An on-site telephone system characterized by comprising: In the on-site telephone system according to claim 1,
The IP mobile telephone company switches the billing calculation formula based on whether the call of the mobile phone of the call source, the call of the mobile phone of the call destination is an internal call, an external call, or a general call,
An on-site telephone system characterized by this.

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