JP2002185527A - Internet telephone system - Google Patents

Abstract

(57) [Summary] An object of the present invention is to provide an Internet telephone system that allows a user to recognize call quality. An Internet telephone system for making a voice call using the Internet includes an own Internet telephone device 2 and a partner Internet telephone device 3 connected via the Internet. A buffer control unit 22 that stores a total number of transmitted and received packets transmitted and received in a voice call between the own Internet telephone device 2 and the partner Internet telephone device 3;
A control unit 21 for controlling the whole; the control unit 21 transmits the total number of transmitted / received packets to the other party's Internet telephone device 3, The call quality such as the packet loss rate is derived from the number of packets and the derived call quality is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an Internet telephone system for making a voice call using the Internet.

[0002]

2. Description of the Related Art In recent years, an Internet telephone system for making a voice call using the Internet has been developed, and its service is being put to practical use.

Hereinafter, a conventional Internet telephone system will be described with reference to the drawings.

FIG. 9 is a block diagram showing a conventional Internet telephone system.

In FIG. 9, 1 is the Internet, 2
A and 3A are user's Internet telephone devices. Voice communication between the Internet telephone devices 2A and 3A via the Internet 1 becomes possible.

FIG. 10 is a block diagram showing the Internet telephone devices 2A and 3A of FIG.

In FIG. 10, reference numeral 11 denotes a user input unit for dialing a destination number or the like and inputting an operation from the user;
Reference numeral 12 denotes a display unit for displaying a caller number, a charge, etc., 13 a call control unit for performing signaling such as connection and disconnection with the other party's Internet telephone device, 14 a voice input unit for taking in a user's voice and converting it into an electric signal, Reference numeral 15 denotes an audio output unit that converts an electric signal into audio and allows the user to listen to the audio. Reference numeral 16 denotes encoding and decoding of data and A / D conversion and D / A.
A voice compression / decoding processing unit for performing conversion; a packet processing unit for performing packetization and depacketization; a buffer for storing data to be transmitted / received; a transmission buffer;
8b is a reception buffer, 19 is an audio input unit 14, an audio output unit 15, an audio compression / decoding processing unit 16, a packet processing unit 1.
7, an audio processing unit including a buffer 18, a network I / F unit (network interface unit) 20 for connection to the Internet 1, and a control unit 21 for controlling each of them.

The operation of the thus configured Internet telephone system will be described.

When a call is made between the user's Internet telephone device (own Internet telephone device) 2A and the partner Internet telephone device 3A, the user inputs the telephone number or partner IP address of the partner Internet telephone device 3A from the user input unit 11. input. The entered number is
The call is processed by the call control unit 13, connected to the other party's Internet telephone device 3 </ b> A, and a voice call becomes possible via the Internet 1.

Next, processing of voice during a call will be described.

[0013] The voice uttered by the user of the Internet telephone device 2 A is first sent to the voice compression / decoding processing unit 16 by the voice input unit 14 as an electric signal. The audio compression / decoding processor 16 converts the received electric signal into a digital signal.
/ D conversion; 729 and the like. The voice-compressed data is packetized by the packet processing unit 17 for transmission to the Internet 1, stored in the transmission buffer 18 a, and transmitted to the Internet 1 via the network I / F unit 20.

Next, the voice from the other party's Internet telephone device 3A is received as data via the network I / F unit 20, and is first stored in the reception buffer 18b. The stored data is depacketized by the packet processing unit 17 and sent to the audio compression / decoding processing unit 16. The data received by the audio compression / decoding processing unit 16 is decoded, converted into an electric signal by A / D conversion, and heard as audio by the user through the audio output unit 15.

The Internet telephone devices 2A and 3A constituting the conventional Internet telephone system perform the above-described operations. In this case, even if the voice processing capability of the Internet telephone devices 2A and 3A is improved by improving the processing capability of the DSP, packet loss on the Internet 1 can occur as long as the Internet 1 is used. Call quality is impaired.

[0014]

However, in the conventional Internet telephone system, when packet loss occurs on the Internet and communication quality is impaired, it is not possible to recognize how much the communication quality has been impaired. Had a point.

In this Internet telephone system, it is required that the user can recognize the communication quality.

An object of the present invention is to provide an Internet telephone system in which a user can recognize the call quality in order to satisfy this demand.

[0017]

SUMMARY OF THE INVENTION In order to solve the above problems, an Internet telephone system according to the present invention is an Internet telephone system for making a voice call using the Internet, wherein the Internet telephone system is connected via the Internet. A buffer control unit for storing a total number of transmitted and received packets transmitted and received in a voice call between the own Internet telephone device and the partner Internet telephone device, and a buffer control unit having the device and a partner Internet telephone device; The control unit transmits the total number of transmitted / received packets to the other party's Internet telephone device, and determines the packet loss rate and the like based on the total number of transmitted / received packets of its own Internet telephone device and the total number of transmitted / received packets of the other party's Internet telephone device. Call quality and display the derived call quality. It has a configuration that.

As a result, an Internet telephone system that allows the user to recognize the call quality can be obtained.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An Internet telephone system according to a first aspect of the present invention is an Internet telephone system for making a voice call using the Internet, wherein the Internet telephone system is connected to its own Internet telephone device connected via the Internet. A buffer control unit for storing a total number of transmitted and received packets transmitted and received in a voice call between the own Internet telephone device and a partner Internet telephone device, and a control unit for controlling the entire Internet telephone device The control unit transmits the total number of transmitted / received packets to the other party's Internet telephone device, and determines the communication quality such as a packet loss rate from the total number of transmitted / received packets of its own Internet telephone device and the total number of transmitted / received packets of the other party's Internet telephone device. And display the derived call quality. Than it is.

According to this configuration, the call quality derived from the total number of transmitted packets and the total number of received packets is displayed on the display unit, so that the user can recognize the call quality.
This has the effect of giving the user a sense of security and a sense of satisfaction.

According to a second aspect of the present invention, there is provided the Internet telephone system according to the first aspect, wherein a network I / F for connecting to the Internet, and user information, call history information, and call quality information are stored. Communication quality data indicating communication quality transmitted from the own Internet telephone device or the other party's Internet telephone device by communicating with the own Internet telephone device or the other party's Internet telephone device. And receive
This is to store call quality data in a database.

With this configuration, the communication quality data can be accumulated in the quality management server, and can be used as reference data for statistical processing of the communication quality of the service provider and service improvement.

According to a third aspect of the present invention, there is provided the Internet telephone system according to the first aspect, wherein a network I / F for connecting to the Internet, and user information, call history information, and call quality information are stored. The own Internet telephone device or the partner Internet telephone device communicates with the quality management server at the end of the Internet telephone call, and uploads the call quality data indicating the call quality to the quality management server. And store it in a database.

With this configuration, there is an effect that the call quality data can always be stored in the database of the quality management server at the end of the Internet telephone call.

According to a fourth aspect of the present invention, in the Internet telephone system according to the third aspect, the own Internet telephone device or the partner Internet telephone device uploads automatically or manually based on setting conditions such as timing. It was decided that.

With this configuration, it is possible to accumulate call quality data flexibly on the basis of the set conditions, and it is possible to improve the operability because it can be manually performed.

According to a fifth aspect of the present invention, there is provided an Internet telephone system according to any one of the second to fourth aspects, wherein the own Internet telephone device or the partner Internet telephone device communicates with a quality management server. In this case, the communication quality data stored in the database is displayed.

With this configuration, even if past call quality data is not stored in the own Internet telephone device or the partner Internet telephone device, the call quality data is referred to from the own device or the partner device by accessing the quality management server. It has the effect that it becomes possible.

According to a sixth aspect of the present invention, in the Internet telephone system according to any one of the second to fifth aspects, the Internet telephone system is connected to the quality management server via the Internet and accesses the quality management server. An information terminal such as a personal computer for graphically displaying the call quality data stored in the database using an Internet protocol such as an HTML format is provided.

With this configuration, it is possible to graphically refer to statistical call quality data that could not be viewed in text display, and to access from any terminal capable of viewing HTML. Therefore, there is an effect that the convenience of the user can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

(Embodiment 1) FIG. 1 is a configuration diagram showing an Internet telephone system according to Embodiment 1 of the present invention.

In FIG. 1, 1 is the Internet, 2 is an Internet telephone device (own Internet telephone device), 3 is an Internet telephone device (other party's Internet telephone device), 4 is an information terminal such as a personal computer, and 5 is a quality management server. .

FIG. 2 shows the Internet telephone device 2 of FIG.
FIG.

In FIG. 2, a user input unit 11, a display unit 12, a call control unit 13, a voice input unit 14, a voice output unit 1
5, audio compression / decoding processing unit 16, packet processing unit 17,
Buffer 18, transmission buffer 18a, reception buffer 18
b, the voice processing unit 19, the network I / F unit 20, and the control unit 21 are the same as those in FIG. A buffer control unit 22 stores the number of packets.

The operation of the Internet telephone system configured as described above will be described.

To make a call between the user's Internet telephone device 2 and the other party's Internet telephone device 3, the user inputs the telephone number or the other party's IP address of the other party's Internet telephone device 3 from the user input unit 11.
The input number is processed by the call control unit 13 and connected to the other party's Internet telephone device 3 so that a call can be made via the Internet 1.

Next, processing of voice during a call will be described.

The voice uttered by the user of the Internet telephone device 2 is first sent by the voice input unit 14 to the voice compression / decoding processing unit 16 as an electric signal. The audio compression / decoding processing unit 16 converts the received electrical signal into a digital signal
D conversion, 729 and the like. The voice-compressed data is packetized by the packet processing unit 17 for transmission to the Internet 1 and stored in the transmission buffer 18a. Then, the packet stored in the transmission buffer 18a is sent to the Internet 1 via the network I / F unit 20, but every time a packet is sent from the transmission buffer 18a to the network I / F unit 20,
The buffer control unit 22 counts the number of transmission packets and stores the total number of transmission packets.

The voice from the other party's Internet telephone device 3 is received as data via the network I / F unit 20 and is first stored in the reception buffer 18b. The buffer control unit 22 counts the number of received packets and stores the total number of received packets. The stored data is depacketized by the packet processing unit 17 and is subjected to voice compression /
It is sent to the decryption processing unit 16. Audio compression / decoding processing unit 16
Is decoded, converted into an electric signal by A / D conversion, and can be heard as audio by the user through the audio output unit 15.

FIG. 3 is a sequence diagram showing an Internet telephone disconnection operation according to the first embodiment of the present invention.
An operation of notifying the partner device of the number of stored transmission / reception packets will be described with reference to FIG. In FIG. 3, the operation of the Internet telephone devices 2 and 3 is controlled by the control unit 2.
This is operation 1.

The user of the Internet telephone device 2 performs on-hook processing and the like, and performs an operation of terminating the call (S
1). A "disconnect" message is transmitted from the Internet telephone device 2 to the Internet telephone device 3 (S2).
The Internet telephone device 3 that has received the disconnection message sounds a busy tone or the like to the user to notify that the other user has ended the call (S3). After transmitting the “disconnect” message, the Internet telephone device 2 transmits a “quality management notification” message including the stored total number of transmitted and received packets to the Internet telephone device 3 (S4). Internet telephone device 3 notified that the other user has ended the call
The user terminates the call by, for example, on-hooking the own device (S5). The Internet telephone device 3 that has finished the call transmits a "release" message to the Internet telephone device 2 (S6). In addition, the Internet telephone device 3 that has finished talking has the total number of received packets stored in its own device, the total number of transmitted packets of the Internet telephone device 2 notified in step S4, and the total number of stored in its own device. From the number of transmitted packets and the total number of received packets of the Internet telephone device 2 notified in step S4, the call quality of the voice call is derived and displayed on the display unit 12 of the Internet telephone device 3 (S7). Also,
The Internet telephone device 3 is the Internet telephone device 2
Transmits a "quality management notification" message including the total number of transmitted and received packets stored in the Internet telephone device 3 (S8). The Internet telephone device 2 that has received the “quality control notification” message derives the communication quality of the voice call from the total number of received and transmitted packets of the Internet telephone device 3 and receives the Internet telephone device 2.
Is displayed on the display unit 12 (S9). Finally, the Internet telephone device 2 transmits a "release complete" message notifying that the disconnection message has been received to the Internet telephone device 3 (S10).

Here, step S4 and step S
8, the total number of transmitted / received packets is included in the “quality control notification” message, but “disconnection” (S2) and “release”
The total number of transmitted and received packets may be included in the message of (S6). In short, it is only necessary that the other device can be notified of the total number of transmitted and received packets of the own device using some message. Also, instead of the total number of transmitted / received packets, call quality data derived by one of the Internet telephone devices may be directly included in the message. In this case, call quality data derived by the Internet telephone device 3 may be used instead of the total number of transmitted and received packets in step S8. In some cases, a message corresponding to the final “release completed” is unnecessary. Further, here, the total number of transmitted / received packets is automatically notified at the end of the call. However, as a manual notification function, a user operation (input from the user input unit 11) is used as a trigger to generate the "quality control notification". A corresponding message may be transmitted to the partner device.

As described above, in this embodiment, by transmitting the total number of transmitted / received packets and the call quality data during a call to the Internet telephone device of the other party, the call quality of the Internet telephone can be displayed. Can give a sense of security and consent to the quality of Internet telephone calls.

(Embodiment 2) The configuration of an Internet telephone system and an Internet telephone device according to Embodiment 2 of the present invention are the same as those of Embodiment 1 in the configurations of FIG. 1 and FIG.

FIG. 4 is a block diagram showing a quality management server 5 constituting the Internet telephone system according to the second embodiment of the present invention.

In FIG. 4, reference numeral 31 denotes a network I / F.
The unit 32 is a database.

The operation of the Internet telephone system configured as described above (the operation of notifying the quality management server 5 of the number of transmitted and received packets) will be described with reference to FIG. FIG. 5 is a sequence diagram showing a quality management notification operation between the Internet telephone devices 2 and 3 and the quality management server 5 according to the second embodiment of the present invention. In FIG. 5, the operation of the Internet telephone devices 2 and 3 is controlled by the control unit 2.
This is operation 1.

First, the user of the Internet telephone device 2 performs processing such as on-hook and the like, and performs an operation of terminating the call (S11). A “disconnect” message is transmitted from the Internet telephone device 2 to the Internet telephone device 3 (S
12). The Internet telephone device 3 that has received the disconnection message sounds a busy tone or the like to the user, and notifies that the other user has ended the call (S13). After transmitting the "disconnect" message, the Internet telephone device 2 transmits a "quality management notification" message including the stored total number of transmitted and received packets to the Internet telephone device 3 (S14).
The user of the Internet telephone device 3 notified that the other user has ended the call ends the call by, for example, on-hooking the own device (S15). The Internet telephone device 3 that has finished the call transmits a "release" message to the Internet telephone device 2 (S16). The Internet telephone device 3 that has finished the call determines the call quality in the voice call from the total number of transmitted / received packets stored in itself and the total number of transmitted / received packets of the Internet telephone device 2 notified in step S14. It is derived and displayed on the display unit 12 of the Internet telephone device 3 (S1).
7). In addition, the Internet telephone device 3 sends a “quality management notification” to the Internet telephone device 2 including the total number of transmitted and received packets stored in the Internet telephone device 3.
The message is transmitted (S18). The Internet telephone device 2 that has received the “quality management notification” message derives the communication quality of the voice call from the total number of packets transmitted and received by the Internet telephone device 3 and displays it on the display unit 12 of the Internet telephone device 2 (S19). .

The Internet telephone device 3 displaying the call quality in step S17 instructs the quality management server 5 to include the total number of transmitted / received packets stored in the Internet telephone device 3 or the call quality data of the Internet telephone device 3. Quality control notification ”message (S
20). In addition, the Internet telephone device 2 displaying the call quality in step S19 transmits to the quality management server 5 the “quality” including the total number of transmitted / received packets stored in the Internet telephone device 2 or the call quality data of the Internet telephone device 2. Send a "management notification" message (S
21). The quality management server 5, which has received the “quality management notification” message in step S20 and step S21,
The total number of received and transmitted packets or the communication quality data is stored in the database 32 (S22). Finally, the Internet telephone device 2 transmits a "release complete" message notifying that the disconnection message has been received to the Internet telephone device 3 (S23).

Here, the total number of transmitted / received packets is included in the “quality management notification” message in steps S14 and S18, but the total number of transmitted / received packets is included in the “disconnect” (S12) and “release” (S16) messages. May be included. The point is that it is sufficient if the total number of transmitted / received packets of the own terminal can be notified to the partner device using some kind of message. Also, instead of the total number of transmitted / received packets, call quality data derived by one of the Internet telephone devices may be directly included in the message. In this case, call quality data derived by the Internet telephone device 3 may be used instead of the total number of transmitted and received packets in step S18. In some cases, a message corresponding to the final “release completed” is unnecessary. Further, step S
If the total number of transmitted / received packets or the communication quality data included in the "quality management notification" message in step 20 and step S21 is the same, either one of the messages may be used. Further, here, the total number of transmitted / received packets is automatically notified by a “quality management notification” message triggered by the end of the call, but the timing set by the user or the service provider (the quality management server administrator) (for each call) / Every day / weekly / etc.) As a trigger, this “quality management notification” message may be transmitted to the quality management server 5. Further, as a manual notification function, a message corresponding to the “quality management notification” may be transmitted to the partner device, triggered by a user operation (input from the user input unit 11).

As described above, in the present embodiment, call quality data is accumulated in the quality management server 5 and can be used as reference data for statistical processing of service quality of a service provider and service improvement. Also, by automatically operating the call quality data upload function according to the conditions set by the user or the service provider, data can be stored flexibly. Also, by having a manual upload function, the operability of the system can be improved.

(Third Embodiment) The configuration of an Internet telephone system and an Internet telephone device according to a third embodiment of the present invention are the same as those of the first embodiment, as shown in FIGS.

Referring to FIG. 6 and FIG. 7, the reference operation from the Internet telephone device in the Internet telephone system configured as described above will be described. FIG. 6 is a sequence diagram when the Internet telephone device 1 refers to data in the quality management server 5, and FIG. 7 is a display diagram showing a display example of call quality according to the third embodiment of the present invention.

In FIG. 6, when a user who wants to refer to data in the quality management server 5 performs an operation such as pressing a button from the user input unit 11 of the Internet telephone device 2 (S
31), a “quality management request” message is transmitted to the quality management server 5 (S32). The quality management server 5 that has received the “quality management request” message performs authentication processing from the IP address or the like if necessary, and extracts user data from the database (S33). The quality management server 5 transmits the extracted data to the Internet telephone device 2 by a "quality management confirmation" message (S34). The Internet telephone device 2 that has received the “quality control confirmation” message displays the contents shown in FIG. 7 on the display unit 12 (S35).

As described above, in the present embodiment, even when past call quality data is not stored in the own Internet telephone device 2, the data is referred from the own device 2 by accessing the quality management server 5. It becomes possible.

(Embodiment 4) The configuration of an Internet telephone system and an Internet telephone device according to Embodiment 4 of the present invention are the same as those of Embodiment 1 in the configurations of FIG. 1 and FIG.

The operation of referring to the data stored in the quality management server 5 from the information terminal 4 in the Internet telephone system thus configured will be described with reference to FIG. FIG. 8 is a screen diagram showing a display example of call quality according to Embodiment 4 of the present invention.

The quality management server 5 according to the present embodiment also has an HTTP server function.
, The call quality data collected from each of the Internet telephone devices 2 and 3 can be browsed graphically as shown in FIG. The information terminal 4 and the quality management server 5 communicate with R such as HTTP, HTML, and URL.
The general Internet protocol described in FC is used.

As described above, in the present embodiment, it is possible to graphically refer to statistical call quality information that cannot be seen in text display. In addition, any terminal that can be connected to the Internet and can display HTML can be accessed from any terminal, thereby improving user convenience.

[0061]

As described above, according to the Internet telephone system according to the first aspect of the present invention, there is provided an Internet telephone system for making a voice call using the Internet. A buffer control unit having an Internet telephone device and a partner Internet telephone device, wherein the own Internet telephone device stores a total number of transmitted and received packets transmitted and received in a voice call between the own Internet telephone device and the partner Internet telephone device; The control unit transmits the total number of transmitted and received packets to the other party's Internet telephone device, and determines the packet loss based on the total number of transmitted and received packets of its own Internet telephone device and the total number of transmitted and received packets of the other party's Internet telephone device. Rate and other call quality, and the derived call quality By indicating, the call quality derived from the total number of transmitted packets and the total number of received packets is displayed on the display unit, so that the user can recognize the call quality and give the user a sense of security and satisfaction. This has the advantageous effect of being able to perform.

According to the Internet telephone system of the present invention, in the Internet telephone system of the present invention, a network I / F for connecting to the Internet, user information, call history information, and call quality information And a quality management server having a database for accumulating the data. The quality management server communicates with the own Internet telephone device or the other party's Internet telephone device, and indicates a call quality transmitted from the own Internet telephone device or the other party's Internet telephone device. By receiving the quality data and storing the call quality data in the database, the call quality data can be stored in the quality management server and used as reference data for the service provider's statistical processing of call quality and service improvement. Has the advantageous effect of being able to

According to the third aspect of the present invention, there is provided the Internet telephone system according to the first aspect, wherein a network I / F for connecting to the Internet, user information, call history information, and call quality information are provided. A self-internet telephone device or a partner Internet telephone device communicates with the quality management server at the end of an Internet telephone call, and transmits call quality data indicating call quality to the quality management server. And storing the data in the database at the end of the Internet telephone call, the call quality data can always be stored in the database of the quality management server.

According to the Internet telephone system of the fourth aspect, in the Internet telephone system of the third aspect, the own Internet telephone device or the partner Internet telephone device is automatically or manually operated based on setting conditions such as timing. By uploading, it is possible to accumulate call quality data flexibly on the basis of the setting conditions, and it is possible to improve the operability because it can be performed manually.

According to the Internet telephone system of the fifth aspect, in the Internet telephone system of any one of the second to fourth aspects, the own Internet telephone device or the partner Internet telephone device communicates with the quality management server. And display the call quality data stored in the database. Even if past call quality data is not stored in the local or remote Internet telephone device, access to the quality management server An advantageous effect is obtained that data can be referred to from the own device or the other device.

According to the Internet telephone system of the sixth aspect, in the Internet telephone system of any one of the second to fifth aspects, the Internet telephone system is connected to the quality management server via the Internet and accesses the quality management server. By providing an information terminal such as a personal computer that graphically displays the call quality data stored in the database in an Internet protocol such as HTML, the statistical call quality data that could not be viewed in text display is graphically displayed. In addition, any terminal capable of viewing HTML can be accessed from any terminal, so that an advantageous effect of improving user convenience can be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an Internet telephone system according to a first embodiment of the present invention;

FIG. 2 is a block diagram showing the Internet telephone device of FIG. 1;

FIG. 3 is a sequence diagram showing a disconnection operation of the Internet telephone according to the first embodiment of the present invention.

FIG. 4 is a block diagram showing a quality management server constituting an Internet telephone system according to a second embodiment of the present invention;

FIG. 5 is a sequence diagram showing a quality management notification operation between the Internet telephone device and the quality management server according to the second embodiment of the present invention.

FIG. 6 is a sequence diagram when referring to data in the quality management server from the Internet telephone device.

FIG. 7 is a display diagram showing a display example of call quality according to Embodiment 3 of the present invention.

FIG. 8 is a screen diagram showing a display example of call quality according to Embodiment 4 of the present invention.

FIG. 9 is a configuration diagram showing a conventional Internet telephone system.

FIG. 10 is a block diagram showing the Internet telephone device of FIG. 9;

[Explanation of symbols]

Reference Signs List 1 Internet 2 Internet telephone device (own Internet telephone device) 3 Internet telephone device (other party Internet telephone device) 4 Information terminal 5 Quality management server 11 User input unit 12 Display unit 13 Call control unit 14 Voice input unit 15 Voice output unit 16 Voice Compression / decoding processing unit 17 packet processing unit 18 buffer 18a transmission buffer 18b reception buffer 19 audio processing unit 20 network I / F unit 21 control unit 22 buffer control unit 31 network I / F unit 32 database

Claims (6)

[Claims] 1. An Internet telephone system for making a voice call using the Internet, comprising: an own Internet telephone device and a partner Internet telephone device connected via the Internet; A buffer control unit that stores a total number of transmitted and received packets transmitted and received in a voice call between the own Internet telephone device and the partner Internet telephone device,
A control unit for controlling the whole, the control unit transmits the total number of transmitted and received packets to the other Internet telephone device, the total number of transmitted and received packets of the own Internet telephone device and the An Internet telephone system which derives call quality such as a packet loss rate from the total number of transmitted and received packets and displays the derived call quality. 2. A quality management server having a network I / F unit for connecting to the Internet, and a database for storing user information, call history information, and call quality information, wherein the quality management server is connected to the Internet. It communicates with a telephone device or the other party's Internet telephone device, receives call quality data indicating the call quality transmitted from the own Internet telephone device or the other party's Internet telephone device, and stores the call quality data in the database. The Internet telephone system according to claim 1, wherein: 3. A quality control server having a network I / F unit for connection to the Internet and a database for storing user information, call history information, and call quality information, wherein the own Internet telephone device or the other party's Internet is provided. The telephone device communicates with the quality management server at the end of an Internet telephone call, uploads call quality data indicating the call quality to the quality management server, and stores the call quality data in the database. Internet telephone system as described in. 4. The Internet telephone system according to claim 3, wherein said own Internet telephone device or said other party's Internet telephone device uploads automatically or manually based on set conditions such as timing. 5. The apparatus according to claim 2, wherein said own Internet telephone apparatus or said other party's Internet telephone apparatus communicates with said quality management server and displays said call quality data stored in said database. 4
The Internet telephone system according to any one of the above. 6. A personal computer connected to the quality management server via the Internet, and displaying the call quality data stored in the database graphically using an Internet protocol such as an HTML format by accessing the quality management server. The Internet telephone system according to any one of claims 2 to 5, further comprising an information terminal such as: