JP2001024820A - Communication equipment and storing medium recording method for controlling it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to select such a charge discount service that minimizes communication charge from various complicated charge tables and to suppress the voice quality of speech within its preferable range. SOLUTION: The communication equipment is provided with an optimum communication service selecting software storing section 106 storing the optimum communication service selecting software which selects such a communication route or communication charge discount service that can suppress communication charges to low amounts by using a plurality of communication charge lists prepared for different communication charge discount services and stored in a charge list storing section 107 and a control section 103 which selects such a communication route or communication charge discount service that can suppress the communication charge to a low amount by using the optimum communication service selecting software stored in the storing section 106 and switches communication to the selected route or discount service.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a communication device for connecting to both the Internet and a public network, which selects a communication fee discount service capable of reducing the communication fee from various communication fee discount services. Communication device capable of suppressing communication charges lower than before and also ensuring communication quality by selecting an appropriate communication method of using the Internet or using a public network, and a storage medium recording a control method thereof About.

[0002]

2. Description of the Related Art Conventionally, there are various kinds of charge discount services for keeping communication charges low, and a method of automatically selecting an optimal communication charge discount service and a communication carrier from among them has been studied. There is an LCR function for selecting a communication carrier according to the transmission time and the transmission area so that the communication charge of the line is minimized.

[0003] In addition, a technology for performing voice communication using the Internet using IP packets has been developed, and it has become possible to use the Internet to reduce the communication fee as compared with using a public network.

[0004]

However, in the conventional communication carrier selection method, since a plurality of communication providers provide various communication charge discount services and the charge system is complicated, the optimum communication charge discount is required. It was impossible to pick a service. In addition, there is a monthly call service, and it is no longer optimal to judge each call. Further, since communication having a different tendency is performed for each user on the caller side, it was impossible to uniquely determine a call service for all users.

[0005] On the other hand, in voice communication, the use of the Internet makes it possible to keep the communication fee lower than when using a public network. Depending on the usage rate, there is a possibility that the communication quality is deteriorated, such as delay, interruption, and superposition of noise. For this reason, there is a possibility that communication at the call voice quality desired by the user may not be performed, and the communication fee is low, but the Internet is difficult to use for voice communication.

The present invention has been made in view of the above circumstances, and is characterized in that both the Internet and a public network can be used as a communication network. Therefore, in order to reduce the communication fee, it is distributed to communication devices every time the price list of various communication fee discount services provided by the telecommunications carrier is updated, and the communication fee is calculated based on the distributed complex price list. In addition to selecting a fee discount service that minimizes the cost, the Internet can be used for voice communication to further reduce communication charges. In this case as well, if the call voice quality is less likely to deteriorate, and if the deterioration becomes severe, the public network is automatically selected during the call so that the call voice quality can be kept within the user's preference. It is an object of the present invention to provide a storage medium in which an apparatus and a control method thereof are recorded.

[0007]

In order to achieve the above object, a communication apparatus according to the present invention comprises: a data communication interface for connecting to the Internet; a public network interface for connecting to a public network; Switching means for switching a communication path between the communication network and the public network; charge table storage means for storing communication fee tables for a plurality of communication fee discount services distributed from the Internet or the public network; Optimum communication storing optimal communication service selection software for selecting a communication path and communication charge discount service capable of suppressing communication charges using the communication charge table for each of the plurality of communication charge discount services stored in the means. Service selection software storage means, and the optimum communication service stored in the optimum communication service selection software storage means. Control means for selecting a communication path or communication charge discount service capable of suppressing communication charges using service selection software, and switching communication to the selected communication path and communication charge discount service. It is assumed that.

[0008] That is, every time the complicated fee schedule of various communication fee discount services is updated, the communication network distributes the fee schedule to the communication device. A fee discount service and software for selecting a communication carrier are also distributed each time the communication network updates.
It is possible to reduce the communication fee by selecting and using the communication method, communication fee discount service and communication carrier that minimizes the communication fee among the complicated fee structures using the delivered fee list and software Communication device.

The present invention also relates to the communication apparatus, wherein the communication history storing means for storing a communication history, a communication path and a communication charge discount capable of suppressing a communication charge using optimum communication service selection software. Control means for using statistical data of communication history stored in the communication history storage means when selecting a service.

[0010] In other words, by using the statistical information of the communication history for each destination number for selecting a communication method, a communication charge discount service, and a communication carrier capable of suppressing communication charges, selection with higher accuracy can be achieved. Make it possible.

[0011] The present invention is also the communication apparatus, wherein a communication path and a communication charge discount service candidate capable of suppressing a communication charge selected by using optimum communication service selection software are used by a communication device user. Display means, a user selects a communication path and a communication charge discount service presented by using the display means, and a communication path and a communication charge discount service selected by using the operation means. And control means for switching to the used communication.

[0012] That is, a communication method capable of keeping communication charges low, a communication charge discount service, and some candidates for communication carriers are presented, and the user is allowed to select one of them, thereby reflecting communication intentions of the user. System, communication fee discount service and carrier,
A communication device that can more efficiently reduce a communication fee by using a communication method, a communication fee discount service, and a communication carrier with a more accurate fee.

[0013] The present invention is also the communication device, wherein a user selects a call voice quality using an operation means, and a communication fee is suppressed in a range of voice quality equal to or higher than the selected communication voice quality. Control means for selecting a possible communication route and a communication fee discount service by using the optimum communication service selection software stored in the optimum communication service selection software storage means.

[0014] That is, by giving priority to the speech voice quality over the fee, the communication device is capable of communicating at the speech voice quality desired by the user although there is low-cost communication.

The present invention also relates to the communication device, wherein the communication device constantly grasps a utilization rate with respect to a communication capacity of the Internet,
The communication network monitoring means for modifying the selection of the communication path and the communication charge discount service that can reduce the communication charge using the optimum communication service selection software according to the usage rate.

That is, in selecting a communication method, there are two cases: a case in which good communication with a low Internet utilization rate can be expected; and a case in which good communication with a high utilization rate cannot be expected.
This is a communication device that can correct the selection of a communication method that can keep the communication fee low, thereby assuring more accurate call quality.

Further, the present invention is the communication apparatus, further comprising a power failure detecting means for constantly monitoring a power supply voltage and switching to a public network interface means using a switching means when detecting that power supply has stopped. It is characterized by the following.

That is, in order to perform communication using the power supplied from the public network in the state where the power supply is stopped at the time of a power failure or the like, if the stop of the power supply is detected, the communication network is used. Is a communication device for automatically switching to public network use.

The storage medium storing the communication device control method according to the present invention may further comprise a procedure for confirming the version of the optimum communication service selection software stored in the optimum communication service selection software storage unit from the Internet or a public network. If the communication service selection software is an old version, a procedure for distributing a new version of the software from the Internet or the public network and setting up and using the new version of the software is stored in the charge table storage unit from the Internet or the public network. Check the update date and time of the communication charge table, and if necessary, distribute the charge table from the Internet or public network and store it in the charge table storage unit, the optimal communication service selection software stored in the software storage unit Communication service selection software and communication charges stored in the charge table storage unit To select the communication method, communication charge discount service, and communication carrier that minimizes the communication charge by using, and to switch the selected communication using the switching unit and send it to the computer. It is.

The present invention is also a storage medium storing the control method of the communication device, wherein a charge of a communication history stored in a communication history storage unit is calculated using software of an optimum communication service selection software storage unit. Then, based on the calculated communication fee and the statistical information of the communication history stored in the communication history storage unit, using the optimum communication service selection software stored in the optimum communication service selection software storage unit, more accurately. This is for causing a computer to execute an optimal communication method, a communication fee discount service, a procedure for selecting a communication carrier, and a procedure for storing a communication history using a communication history storage unit after communication is completed.

According to the present invention, there is also provided a storage medium storing the control method of the communication device, wherein the communication fee is kept low by using the optimum communication service selection software stored in the optimum communication service selection software storage unit. Possible communication methods,
Select a communication fee discount service and a candidate for a telecommunications carrier, present the candidate to the user of the communication device using the display unit,
A user selects a communication method, a communication charge discount service and a communication carrier from the candidates using the operation unit, and causes the computer to execute the selected communication method, the communication charge discount service and a procedure for using the communication carrier. belongs to.

According to the present invention, there is provided a storage medium storing the control method of the communication device, wherein a user selects a call voice quality and is stored in an optimum communication service selection software storage unit in a future process. When selecting a communication method, communication charge discount service and communication carrier that can keep communication charges low using the optimal communication service selection software, the selection range should be set to a range that is higher than the selected call voice quality. This is for making the computer execute the limiting procedure.

The present invention is also a storage medium storing the control method of the communication apparatus, wherein the storage medium acquires Internet traffic data and stores the optimum data stored in an optimum communication service selection software storage unit in a future process. Using a communication service selection software, a communication method that can keep communication charges low, a communication charge discount service, and a range that is higher than the call voice quality when selecting a communication carrier. To make a computer execute the procedure.

The present invention is also a storage medium storing the control method of the communication device, wherein a power supply is monitored, and when power supply is stopped, communication is switched to use of a public network by using a switching unit. This is for causing the computer to execute a procedure of returning to the original state and continuing to monitor the power when it is detected that the supply of power is restarted.

As described above, each time the various communication systems, communication fee discount services, and charge tables corresponding to the communication carriers in the Internet and the public network are updated, they are distributed to the communication device side. Based on the table, select the optimal communication system, communication fee discount service and communication carrier. In addition, an optimal communication method, a communication fee discount service, and a candidate of a communication carrier are presented to the user of the communication device, and the user can select a communication fee discount service that suits his / her preference from the presented.

On the other hand, the user can arbitrarily set the communication quality during voice communication, and a communication method and communication rate discount that can keep the communication rate low within a range that guarantees the set communication quality. The communication device can calculate and use the service and the communication carrier. At this time, when selecting the communication method, monitor the Internet usage rate,
By correcting the optimal communication method candidate according to the usage rate,
More accurate call quality assurance can be performed.

[0027]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In the following description, for convenience, the data communication interface is an interface with a dedicated line that is always connected to the Internet, and the public network is assumed to be an ISDN network.

FIG. 1 is a block diagram showing a first embodiment of the present invention. This communication apparatus includes a data communication interface unit 101 connected to the Internet (data communication network), a public network interface unit 102 connected to a public network (ISDN network), and a charge table for storing a charge table for various distributed communication charge discount services. A storage unit 107, a communication system capable of suppressing communication charges distributed from the Internet or a public network, a communication charge discount service, and an optimum communication service selection software storage unit for storing optimum communication service selection software for selecting a communication carrier; 106, a switching unit 104 for switching a communication path between the communication apparatus and the Internet and the public network, and the control unit 103 reduces a communication fee distributed via the data communication interface unit 101 or the public network interface unit 102. Store the service charge table in the charge table storage unit 107 Also, the optimum communication service selection software is stored in the optimum communication service selection software storage unit 106, and the Internet or public network communication system, communication charge discount service, and communication using the charge table and the optimum communication service selection software are used. Control to select and use the business operator.

FIG. 7 is an operation flowchart of this communication device in the first embodiment of the present invention. The version of the optimum communication service selection software stored in the optimum communication service selection software storage unit 106 is confirmed from the Internet or a public network (S100). If it is an old version (S101), a new version of software is distributed from the Internet or a public network (S10).
2), a new version of software is set up and used (S103).

Next, the update date and time of the communication charge table stored in the charge table storage unit 107 is confirmed from the Internet or the public network (S104), and if the communication charge table needs to be updated (S1).
05), the charge table is distributed from the Internet or the public network and stored in the charge table storage unit 107.

The control unit 103 uses the optimum communication service selection software stored in the optimum communication service selection software storage unit 106 and the communication charge table stored in the charge table storage unit 107 to minimize the communication charge. A communication system, a communication fee discount service, and a communication carrier are selected (S10).
7). The switching unit 104 switches to the selected optimal communication method, communication fee discount service, and communication using the communication carrier.
(S108). Then, the call is transmitted (S109). As an example, when using voice communication, IS
A communication fee discount service and its services that offer the cheapest communication fees depending on the originating time and destination area when communicating using the Internet, which is cheaper than the DN network, or voice communication using ISDN. It is conceivable that communication is performed by using a communication carrier that provides the service.

For convenience, the use of the Internet and the public network are described in the case of an ISDN outside line network. However, the Internet and ISDN are merely examples, and in addition to the Internet, digital communication networks such as dedicated lines such as frame relays and ATM networks. Is also conceivable. On the other hand, the public network can be applied not only to the ISDN but also to various types of communication networks such as an analog public network, a mobile phone network, and a PHS network.

FIG. 2 is a block diagram showing a second embodiment of the present invention. In the following description, the same components are denoted by the same reference numerals, and description thereof will be omitted. The communication device according to the second embodiment further includes a communication history storage unit 108 that stores a communication history transmitted by a user of the communication device, in addition to the communication device according to the first embodiment. In addition to the control of 103, the optimal communication service selection software storage unit 106 uses the communication history statistical information stored in the communication history storage unit 108 when selecting the optimum communication charge discount service and the communication carrier. And more precisely, control for selecting an optimal communication fee discount service and a communication carrier.

FIG. 8 is an operation flowchart of the communication device. The operation flow (S10) of the first embodiment of FIG.
0 to S106), the charge of the communication history stored in the communication history storage unit 108 is calculated using the software of the optimum communication service selection software storage unit 106 (S12).
0), the calculated communication fee and the communication history storage unit 1
Based on the statistical information of the communication history stored in the storage unit 08, the optimum communication service selection software stored in the optimum communication service selection software storage unit 106 is used to more accurately optimize the optimum communication method, communication charge discount service, and communication. A business is selected (S121). Hereinafter, the operation flow is the same as the operation flow (S108 to S109) of the first embodiment example of FIG. 7, but after the communication is completed, the communication history is stored using the communication history storage unit 108 (S122). As an example of this, as a communication history,
The communication time, the communication hold time and the number of communications for each communication location are accumulated, and in areas where the communication hold time is long, communication using the always-connected Internet is performed so that the communication fee is minimized when the communication hold time is long. It is conceivable to select a communication service that provides the lowest communication fee when the number of communications is large, for a destination where the number of communications is large. Another feature is that the target of the selected location is not only the area but also the individual number.

FIG. 3 is a block diagram showing a third embodiment of the present invention. The communication device according to the third embodiment is the same as the communication device according to the second embodiment, and further includes a communication method and a communication fee discount selected using the optimum communication service selection software stored in the optimum communication service selection software storage unit 106. A display unit 11 for presenting to a user of a communication device a candidate capable of keeping a communication fee of a service and a communication carrier low.
0, and an operation unit 111 for selecting a presented candidate. The control unit 123 uses the display unit 110 in addition to the control of the control unit 113, and uses the display unit 110 for a communication method, a communication charge discount service, and a communication charge of a communication carrier. Is presented to the user of the communication device, and control is performed using the operation unit 111 to allow the user of the communication device to select a communication method, a communication fee discount service, and a communication carrier.

FIG. 9 is an operation flowchart of the communication device. The operation flow (S10) of the first embodiment of FIG.
0 to S106) and the operation flow (S120 to S121) of the second embodiment shown in FIG. 8, and the communication fee is suppressed by using the optimum communication service selection software stored in the optimum communication service selection software storage unit 106. A possible communication method, a communication fee discount service, and a candidate for a communication carrier are selected (S130), and the candidates are presented to the user of the communication device (extension network user) using the display unit 110 (S13).
1) The user selects a communication method, a communication fee discount service, and a communication carrier from the candidates using the operation unit 111 (S
132), using the selected communication method, communication fee discount service and communication carrier. The following is an operation flow (S108 to S109) of the first embodiment of FIG.
This is the same as the operation flow (S122) of the embodiment. Examples of this include a flat-rate communication fee service with different call holding times and a discount service that increases the call time at the same rate. The user can select the communication method, communication fee discount service and communication carrier in consideration of the call holding time expected for the communication, and more accurately select the communication service with the lowest communication fee. It is possible to make it possible.

FIG. 4 is a block diagram showing a fourth embodiment of the present invention. The control unit 133 in the communication device of the fourth embodiment is a communication device in which the voice quality used for communication is variable by using a plurality of voice information coding techniques. In addition to the control, the call voice quality used by the user is set, communication is limited to that range, and the optimum communication service selection software storage unit 106 stores the call voice quality within a range where the call voice quality does not become lower than the set call voice quality. It performs control to correct the communication system, communication fee discount service and communication carrier selected using the optimum communication service selection software.

FIG. 10 is an operation flowchart of this apparatus. The operation flow of the first embodiment of FIG. 7 (S100
To S106), the user selects the call voice quality (S140), and lowers the communication charge by using the optimum communication service selection software stored in the optimum communication service selection software storage unit 106 in future processing. When selecting a communication method, a communication charge discount service, and a communication carrier that can be suppressed, the selection range is limited to a range that is equal to or higher than the selected call voice quality (S141). Hereinafter, the operation flow (S120 to S121) of the second embodiment of FIG. 8 and the operation flow (S130 to S13) of the third embodiment of FIG.
2), the operation flow of the first embodiment of FIG.
S109), the operation flow (S1) of the second embodiment of FIG.
Same as 22). This processing is, for example, when the user selects a sound quality similar to that of a subscribed telephone, or in the case of communication using the Internet, a CODEC that has a sound quality within the range.
Select and use. Alternatively, depending on the fee discount service, switching to an ISDN network capable of communication with voice quality higher than that of a subscriber telephone and performing communication may be considered.

FIG. 5 is a block diagram showing a fifth embodiment of the present invention. The communication device according to the fifth embodiment is, in addition to the communication device according to the fourth embodiment, a communication network monitoring unit that monitors the use state and utilization rate of the Internet and predicts and corrects voice communication quality when using the Internet. 130
The control unit 143 uses the communication network monitoring unit 130 and, in addition to the control of the control unit 133, lowers the communication charge by using the optimal communication service selection software stored in the optimal communication service selection software storage unit 106. When the range is limited when selecting a communication method that can be suppressed, a communication fee discount service, and a communication carrier, control is performed to correct the range according to the Internet usage status.

FIG. 11 is an operation flowchart of the communication device. The operation flow (S1) of the first embodiment of FIG.
00 to S106) and the operation flow (S140 to S141) of the fifth embodiment of FIG. 10, and also acquires Internet traffic data (S150), and stores it in the optimal communication service selection software storage unit 106 in the future processing. A communication method that can keep communication charges low by using the accumulated optimal communication service selection software, communication charge discount service, and limiting Internet traffic to a range limited to voice quality when selecting a carrier The range is corrected accordingly (S151). Hereinafter, the operation flow (S120 to S121) of the second embodiment example in FIG. 8, the operation flow (S130 to S132) of the third embodiment example in FIG. 9, and the operation flow (S108 to S108) in the first embodiment example in FIG. S109),
This is the same as the operation flow (S122) of the second embodiment example in FIG. Operation flow S151 of the fifth embodiment example in FIG.
Are shown in FIG. First, when the transmission delay (communication delay) of the Internet is long (S152), it is set not to use the Internet (S157). The determination as to whether the transmission delay is long is made, for example, based on the magnitude of the delay time arbitrarily set by the user. If the delay time is allowed, the speech voice quality when using the Internet is set according to the high / medium / low bucket loss rate (packet loss rate) of the Internet (S153). As an example, high, medium, and low are distinguished in three user-arbitrarily set ranges. If the ratio is low, it is determined that communication is performed well, and the communication is set to the same level as a subscriber telephone (S154). In the case of medium, it is determined that interruption and noise increase, and the quality is set to bad (S15).
5). If the value is high, it is determined that normal communication cannot be performed, and a setting is made not to use the Internet (S157). If the communication voice quality set by the user of this communication device is not satisfied even in the case of medium / low (S156), it is conceivable to set not to use the Internet (S157). In determining the communication traffic, the utilization rate of the data communication band, the response time of the communication destination, and the like can be considered. As an example of this processing, when data communication traffic is very high and voice communication is expected to be poor,
It is also conceivable to divert communication to the ISDN network.

FIG. 6 is a block diagram showing a sixth embodiment of the present invention. The communication device according to the sixth embodiment, in addition to the communication device according to the fifth embodiment, constantly monitors a power supply voltage, and uses the switching unit 104 to detect the power supply stoppage. Further includes a power failure detection unit 160 that switches to communication using

FIG. 13 is an operation flowchart of the communication device. The power failure detection unit 160 operates independently of the flow up to FIG. 12, monitors the power supply (S160), and switches the communication to use the public network using the switching unit 104 when the power supply is stopped (S161). ).

When it is detected that the supply of power is restarted (S162), the process returns to the original state and the monitoring of the power is continued (S160). As an example, a communication device capable of communication using station-supplied power of a public network has a backup power supply such as a battery and a capacitor, monitors a power supply voltage, and, when the power supply voltage becomes almost zero, a backup power supply. It is conceivable to perform an operation of switching only the changeover switch using the power of the power supply, and to enable communication even when the power supply from the main power supply is stopped.

In the above, the present invention has been described as having two physical interfaces for the two communication networks of the Internet and the public network. However, the same interface is used and the communication network is switched as necessary. Is also conceivable.

The operation flow of the communication device according to each embodiment of the present invention is specifically described in a control method of the communication device recorded in a predetermined storage medium in advance by a computer such as a personal computer (PC). It is executed based on.

[0047]

As described above, according to the present invention, it is possible to select a communication system with a minimum communication fee with higher accuracy than before by selecting an optimum communication route using two different communication networks, that is, a public network and the Internet. It is possible to do. Also,
Based on the communication history, a more accurate optimal communication route can be selected in order to optimally select a communication method, a communication fee discount service, and a communication carrier according to the communication status of each individual user. In addition, the present invention responds to the complicated communication fee discount service by upgrading the software version and updating the fee table, so that accurate fee calculation can be performed.

On the other hand, since it is possible to select not only the charge but also the communication of the public network where the voice quality of the call is guaranteed, it is also possible to realize the communication route selection capable of guaranteeing the voice quality of the call. Is possible. Further, by monitoring the usage status on the Internet side, it is possible to improve the accuracy of both the guarantee of the voice quality of the call and the selection of the lowest-priced communication path.

By summing up the above, it is possible to efficiently reduce the communication fee of the communication device user and to guarantee the voice quality of the call.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing a second embodiment of the present invention.

FIG. 3 is a block diagram showing a third embodiment of the present invention.

FIG. 4 is a block diagram showing a fourth embodiment of the present invention.

FIG. 5 is a block diagram showing a fifth embodiment of the present invention.

FIG. 6 is a block diagram showing a sixth embodiment of the present invention.

FIG. 7 is an operation flowchart of the embodiment shown in FIG. 1;

FIG. 8 is an operation flowchart of the embodiment shown in FIG. 2;

FIG. 9 is an operation flowchart of the embodiment shown in FIG. 3;

FIG. 10 is an operation flowchart of the embodiment shown in FIG. 4;

FIG. 11 is an operation flowchart of the embodiment shown in FIG. 5;

FIG. 12 is a diagram showing a detailed operation flow of S151 in FIG. 5;

FIG. 13 is an operation flowchart of the embodiment shown in FIG. 6;

[Explanation of symbols]

101 data communication interface unit (data communication interface unit) 102 public network interface unit (public network interface unit) 103, 113, 123, 133, 143 control unit (control unit) 104 switching unit (switching unit) 106 optimal communication service selection software Storage unit (optimal communication service selection software storage unit) 107 Charge table storage unit (charge table storage unit) 108 Communication history storage unit (communication history storage unit) 110 Display unit (display unit) 111 Operation unit (operation unit) 130 Communication network Monitoring unit (communication network monitoring means) 160 Power failure detection unit (power failure detection means)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsuhiko Ogawa, Inventor 3--19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Inside Japan Telegraph and Telephone Co., Ltd. No. 2 Nippon Telegraph and Telephone Corporation (72) Inventor Wataru Inoue 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo F-Term within Nippon Telegraph and Telephone Corporation 5K025 AA08 BB02 CC01 EE03 EE04 EE05 EE30 5K030 GA20 HC02 HC04 HC14 HD05 LB05 5K101 LL01 LL02 LL03 NN48 QQ07 9A001 BZ03 CC07 DD10 HH34 JJ12 JJ25

Claims (12)

[Claims] 1. a data communication interface for connecting to the Internet; a public network interface for connecting to a public network; a switching unit for switching a communication path between the Internet and the public network; Or, a charge table storing means for storing a communication charge table for each of the plurality of communication charge discount services distributed from the public network; and a communication charge table for each of the plurality of communication charge discount services stored in the charge table storage means. An optimal communication service selecting software storing means for storing an optimal communication service selecting software for selecting a communication route or a communication fee discount service capable of suppressing a communication charge using The communication fee can be kept low by using the optimal communication service selection software Communication apparatus selects the Do communication path and communication charge discount service, and having a control means for switching the communication to the selected communication path and the communication charge discount service. 2. The communication device according to claim 1, wherein a communication history storing means for storing a communication history, a communication path and a communication charge capable of suppressing a communication charge by using optimum communication service selection software. A communication unit that uses statistical data of communication history stored in the communication history storage unit when selecting a discount service. 3. The communication device according to claim 2, wherein a communication path and a communication charge discount service candidate that can reduce the communication charge selected by using the optimum communication service selection software are used for the communication device. Display means for presenting to a user, operating means for selecting a communication route and a communication charge discount service presented by the user using the display means, and a communication path and communication charge discount service selected using the operating means Control means for switching to communication using
A communication device comprising: 4. The communication device according to claim 3, wherein the user selects a call voice quality using the operation means, and suppresses a communication fee in a range of voice quality equal to or higher than the selected communication voice quality. A communication apparatus characterized by comprising control means for selecting a communication path and a communication charge discount service that can be performed by using the optimum communication service selection software stored in the optimum communication service selection software storage means. 5. The communication device according to claim 4, wherein the communication rate using the optimum communication service selection software can be kept low by constantly grasping the utilization rate with respect to the communication capacity of the Internet. A communication apparatus comprising communication network monitoring means for correcting selection of a communication path and a communication charge discount service. 6. The communication device according to claim 5, wherein the power supply voltage is constantly monitored, and when a power supply stoppage is detected, the power failure detection means for switching to the public network interface means using the switching means. A communication device comprising: 7. A procedure for confirming the version of the optimal communication service selection software stored in the optimal communication service selection software storage unit from the Internet or a public network. Procedures for distributing the new version of software from the network, setting up and using the new version of the software, and confirming the update date and time of the communication charge table stored in the charge table storage unit from the Internet or the public network In this case, the procedure for distributing the charge table from the Internet or the public network and storing it in the charge table storage unit, the optimal communication service selection software stored in the storage unit for optimal communication service, and the storage in the charge table storage unit The communication method and communication fee that minimize the communication fee using the communication fee table A storage medium which records a control method of a communication device for causing a computer to execute a discount service and a procedure of selecting a communication carrier and switching and transmitting the selected communication using a switching unit. 8. A storage medium storing the control method of the communication device according to claim 7, wherein the charge of the communication history stored in the communication history storage unit is calculated using software of the optimum communication service selection software storage unit. Based on the calculated communication fee and the statistical information of the communication history stored in the communication history storage unit, the communication service selection software stored in the optimum communication service selection software storage unit is used for more accurate calculation. A method for selecting a communication method, a communication charge discount service, and a communication carrier that are most suitable for a computer; a procedure for storing a communication history using a communication history storage unit after communication is completed; The storage medium on which it was recorded. 9. A storage medium in which the control method of a communication device according to claim 8 is recorded, wherein a communication charge is suppressed by using an optimum communication service selection software stored in an optimum communication service selection software storage unit. Selects a communication method, communication charge discount service and communication carrier candidate that can be used, presents the candidate to the user of the communication device using the display unit, and allows the user to select the communication method, communication charge discount service and communication from the candidate. A storage medium storing a control method of a communication device for causing a computer to select a business operator using an operation unit, and to cause a computer to execute a selected communication method, a communication fee discount service, and a procedure for using the communication business operator. 10. A storage medium storing the control method of a communication device according to claim 9, wherein a user selects a speech voice quality and is stored in an optimum communication service selection software storage unit in a future process. When selecting a communication method, communication charge discount service and communication carrier that can keep communication charges low using the optimal communication service selection software that is available, the selection range is equal to or higher than the selected call voice quality The storage medium which recorded the control method of the communication apparatus for making a computer perform the procedure limited to. 11. A storage medium recording the control method of a communication device according to claim 10, wherein traffic data of the Internet is obtained and stored in an optimum communication service selection software storage unit in a future process. A communication method that can keep communication charges low by using the optimal communication service selection software, a communication charge discount service, and a range limited according to Internet traffic to a range that is equal to or higher than the voice quality when selecting a carrier A storage medium that records a control method of a communication device for causing a computer to execute a correcting procedure. 12. A storage medium storing the control method for a communication device according to claim 11, wherein the power supply is monitored, and when the power supply is stopped, the communication is switched to the use of the public network by using the switching unit. A storage medium for recording a control method of a communication apparatus for causing a computer to execute a procedure of returning to an original state and continuing monitoring of power when it is detected that power supply is restarted.