JP4161836B2 - IP phone adapter counterpart state notification method, IP phone adapter, and IP phone device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an IP telephone adapter for making a telephone call via an IP leased line or the Internet.
[0002]
[Prior art]
Conventionally, in an IP phone, there is a case where a call cannot be made or communication is interrupted during a call due to a communication trouble in an IP dedicated line (hereinafter referred to as an IP line) or the Internet or a problem with a telephone device on the other side. It was. Such a problem has occurred when, for example, congestion occurs due to an increase in the number of packets passing through the IP line connected to the telephone device.
[0003]
Therefore, conventionally, there has been proposed a button telephone device and an Internet communication system that communicate with a partner via a normal telephone line (public switched telephone network) such as an ISDN line when the congestion state exceeds the allowable limit of the Internet network ( For example, see Patent Document 1.)
[0004]
[Patent Document 1]
JP 2000-261553 A (page 4-6, FIG. 1-2)
[0005]
[Problems to be solved by the invention]
According to the button telephone apparatus and the Internet communication system described in Patent Document 1, the system determines the voice communication congestion when the Internet network is used and automatically switches to the normal telephone function. It is possible to solve the troublesome operation such as switching to a normal circuit switching network with stable quality and dialing again. Therefore, even when the Internet network is congested, it is possible to make a reliable call as long as the other party is not busy.
[0006]
An IP telephone is generally set at a lower communication cost than a telephone using a public switched telephone network. However, in this system, as described above, the voice communication congestion is judged by the system and automatically switched to the normal telephone function. Therefore, even when communication via the Internet network is possible, the normal telephone line may be selected. is there. For this reason, while communication quality is maintained, communication costs increase due to the use of regular telephone lines. For users who want to reduce communication costs, the use of this key telephone device and the Internet communication system can reduce communication costs. There was no problem.
[0007]
Also, if the user wants to talk to the other party with an IP phone, if the user is unable to talk to the other party due to congestion, the user will not know when the other party will be able to talk. There was a problem of not becoming.
[0008]
Therefore, according to the present invention, when making an IP phone call, the communication status of the other party is confirmed, and when the other party cannot communicate with the other party due to a trouble in the telephone line, the other party can make a call at a predetermined interval. It is an object of the present invention to provide an IP telephone adapter partner side state notification method for confirming whether or not, an IP telephone adapter and an IP telephone apparatus that implement this method.
[0009]
[Means for Solving the Problems]
The present invention has the following configuration as means for solving the above problems.
[0010]
(1) A method of notifying the other party of an IP telephone adapter that makes a call with an IP telephone via the Internet or an IP dedicated line,
A calling process in which the calling IP phone adapter calls the other IP phone;
A redial process for confirming whether or not the other party IP telephone is able to make a call every predetermined time if the telephone call cannot be made with the other party IP telephone in a reason other than busy in the calling process;
And a notification step of notifying the fact that the counterpart IP phone is capable of making a call in the redial step.
[0011]
In this configuration, if a call cannot be made due to a communication line problem or a problem with the other party's telephone when a call is made to the other party using an IP phone, the problem is solved and the call can be made. Can be confirmed every predetermined time until the problem is solved and a call becomes possible. Therefore, the user can grasp that the other party can make a call without redialing himself / herself when the other party's telephone cannot make a call for reasons other than during the call by placing an IP phone. In addition, by setting, for example, 15 to 30 minutes as the predetermined time and performing redialing at this time, it is possible to repeat redialing without applying a load to the communication line.
[0012]
(2) Redial confirmation for confirming whether or not to repeatedly make a call to the other party's IP phone every predetermined time if the other party's IP phone becomes incapable of talking for reasons other than busy in the calling process It has the process.
[0013]
In this configuration, the user can select whether or not to repeat redial (calling) according to the user's situation when calling the other party. Therefore, when there is no need to rush to the other party, redialing can be repeated until the other party can make a call with the IP phone. Can be used to call the other party.
[0014]
(3) It is characterized in that it has a communication failure notification step of notifying the fact by the notification means that communication with the counterpart IP phone is impossible in the redial step.
[0015]
In this configuration, when redialing with an IP phone, the user can grasp that communication is not possible. For example, by configuring the notification means to display that communication is not possible, the user has left his / her seat for a while. You can easily grasp the result of redialing even in the case of an accident.
[0018]
( 4 A communication means for calling the other party's IP phone via the Internet or an IP dedicated line and communicating with the other party's IP phone;
When the other party IP phone is called by the communication means, if the call is impossible due to reasons other than the busy of the other party IP phone, the other IP phone is called every predetermined time by the communication means, Confirmation means for confirming whether the other party's IP telephone is capable of making a call;
When the other party's IP telephone is capable of making a call, it is provided with an informing means for informing that effect.
[0019]
In this configuration, the same effect as (1) can be obtained.
[0020]
( 5 ) When the communication means becomes unavailable due to a reason other than the busy of the other party's IP telephone, the notification means notifies the other party's IP telephone of a message for confirming whether or not to repeat the call every predetermined time. It is characterized by that.
[0021]
In this configuration, the same effect as (2) can be obtained.
[0022]
( 6 The informing means informs that the other party's IP telephone is incapable of making a call.
[0023]
In this configuration, the same effect as (3) can be obtained.
[0026]
( 7 ) ( 4 ) To ( 6 The IP telephone adapter according to any one of the above is provided.
[0027]
In this configuration, since the IP telephone apparatus includes the IP telephone adapter, when the other party cannot make a call when the IP telephone is placed, the other party's status is checked every predetermined time. Therefore, when the problem is solved, the user can make a call with the other party using the IP phone.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a block diagram showing a schematic configuration of an IP telephone system according to the present embodiment. Here, the IP telephone call control protocol includes ITU-T H.264. 323, SIP (Session Initiation Protocol), MEGACO (ITU-T H.248), etc. are all applicable to the present invention. In the following description, a case where SIP is used as a call control protocol will be described. In the IP telephone system of the present invention, an IP network (IP dedicated line) or the Internet can be used as a communication line, and the case where the Internet is used will be described below. Furthermore, in the following description, a conventional telephone that is generally used using a public switched telephone network is referred to as a general telephone.
[0029]
As shown in FIG. 1, an IP telephone system 1 includes a telephone device 2, a telephone device 3, a SIP proxy server device (hereinafter referred to as a SIP server device) 6 provided by an ISP (Internet Service Provider) 4, and an ISP 5. SIP server device 7 and ENUM (tElephone NUmber Mapping) server device 8. The telephone device 2 is configured to perform data transmission using ADSL, and is connected to the Internet 9 via the splitter 11 and the SIP server device 6. The telephone device 3 is configured to perform data transmission using ADSL, and is connected to the Internet 9 via the splitter 12 and the SIP server device 7. The ENUM server device 8 is directly connected to the Internet 9.
[0030]
The telephone device 2 is connected to the public switched telephone network 10 via the splitter 11 and the exchange (PBX) 13, and the telephone apparatus 3 is connected to the public switched telephone network 10 via the splitter 12 and the exchange (PBX) 14. It is connected. In addition, the Internet 9 is connected to the public switched telephone network 10 via the gateway device 15. Further, a telephone 17 is connected to the public switched telephone network 10 via a switch (PBX) 16.
[0031]
Therefore, the telephone device 2 and the telephone device 3 can make a call not only via the Internet 9 but also via the public switched telephone network 10. Further, the telephone device 2 and the telephone device 3 can make a call with the telephone 17 via the Internet 9 and the public switched telephone network 10.
[0032]
The telephone device 2 includes a telephone 21, a VoIP adapter 22 that is an IP telephone adapter, an ADSL modem 23, and a splitter 24. The telephone device 3 includes a telephone 31, a VoIP adapter 32, an ADSL modem 33, and a splitter 34. Here, in the telephone device 2 and the telephone device 3, the telephone, the VoIP adapter, the ADSL modem, and the splitter may be configured separately or may be configured integrally. For example, the VoIP adapter may be configured integrally with an ADSL modem and a splitter, or a telephone device, a VoIP adapter, an ADSL modem, and a splitter may all be configured integrally as a telephone device. In addition, when each device has a different configuration, it can be used by connecting a telephone for a general telephone to a VoIP adapter.
[0033]
The telephone 21 and the telephone 31 are devices for a user to talk (communicate) with a partner. The VoIP adapter 22 and the VoIP adapter 32 divide the voice data sent from the telephone 21 or the telephone 31 into packet units and transmit them to another telephone apparatus. Further, the VoIP adapter 22 and the VoIP adapter 32 restore the voice data in units of packets transmitted from other telephone devices so that the voice data can be reproduced by the telephone, and output it to the telephone 21 or the telephone 31.
[0034]
The ADSL modem 23 and the ADSL modem 33 modulate digital data to convert it into an analog signal and vice versa in order to perform data communication using a high frequency band not used for voice transmission of a telephone.
[0035]
When performing data communication by ADSL, the splitter 24 and the splitter 34 separate a voice signal and a data signal flowing through the telephone line, or mix and send a voice signal and a data signal to the telephone line. To do.
[0036]
The splitter 11 and the splitter 12 separate a voice signal and a data signal output from the telephone device 2 or the telephone device 3 when performing data communication by ADSL, or a voice signal from the public switched telephone network 10 and the Internet. The data signal from 9 is mixed and sent to the telephone device 2 and the telephone device 3 through a telephone line.
[0037]
ISP 4 and ISP 5 provide the telephone device 2 and the telephone device 3 with a connection service to the Internet 9.
[0038]
The SIP server device 6 and the SIP server device 7 relay a request from the telephone device 2 or the telephone device 3 to another server device or a telephone device connected to the ISP.
[0039]
The ENUM server device 8 is a type of DNS, stores and manages a database describing the correspondence between telephone numbers and URIs (Uniform Resource Identifiers), and is sent from client devices (SIP server devices, telephone devices, etc.). In response to the request, the URI corresponding to the telephone number is notified to the client device. Further, URIs including information such as IP addresses, URLs, and telephone numbers are assigned to the telephone devices 2 and 3, and the URIs of the respective telephone devices are registered in the ENUM server device 8 in advance.
[0040]
The telephone device 2 and the telephone device 3 are not limited to those using ADSL, and may perform data transmission using ISDN, FTTH, or the like.
[0041]
Next, a detailed configuration of the VoIP adapter will be described. FIG. 2 is a block diagram showing a schematic configuration of the VoIP adapter. Here, since the VoIP adapter 22 and the VoIP adapter 32 have the same configuration, the VoIP adapter 22 will be described. As shown in FIG. 2, the VoIP adapter 22 includes a CPU 41, ROM 42, RAM 43, LED controller 44, LED 45, LCD controller 46, LCD 47, buzzer 48, operation switch 49, setting switch 50, codec interface circuit 51, timer 52, and A LAN controller 53 is provided. Further, the VoIP adapter 22 includes a codec 54, a line interface circuit 55, and a SLIC (Subscriber Line Interface Circuit) 56.
[0042]
The CPU 41 controls the operation of each unit provided in the VoIP adapter 22. The ROM 42 stores programs executed by the CPU 41, information on messages to be displayed on the LCD 47, and the like. The RAM 43 stores contents and data that should be temporarily stored. The LED controller 44 controls the turning on / off of the LED 45. The LED 45 blinks when the user can talk to the other party. The LCD controller 46 controls the display on the LCD 47. The LCD 47 displays contents (messages) to be transmitted to the user. The buzzer 48 outputs a warning sound to the user. The operation switch 49 stops the flashing of the LED 45 and the warning sound of the buzzer 48. The setting switch 50 is used by the user to set the time measured by the timer 52 and the like. The codec interface circuit 51 relays an audio signal exchanged between the codec 53 and each unit. The timer 52 measures a plurality of times set by the user. The LAN controller 53 relays data exchanged with the ADSL modem 23.
[0043]
The codec 54 performs data compression / decompression of the audio signal. The line interface circuit 55 exchanges audio signals with the splitter 24. The SLIC 45, also called a subscriber line interface circuit, is an interface between the telephone 21 and the VoIP adapter 22, and relays voice signals such as user voices and tone sounds.
[0044]
The VoIP adapter 22 selects an IP telephone and a general telephone according to the telephone number input from the telephone 21.
[0045]
(1) When a telephone number for IP telephone is input, for example, when the telephone number of the telephone device 3 such as 050-XXXX-YYYY (X and Y are arbitrary numbers) is input from the telephone 21, the CPU 41 It communicates with the telephone device 3 by IP telephone, that is, via the Internet 9.
[0046]
(2) When the telephone number of a general telephone is input, for example, when the telephone number of the telephone device 3 of 0539-VV-WWWW (V and W are arbitrary numbers) is input from the telephone 21, the CPU 41 It communicates with the telephone device 3 by telephone, that is, through the public switched telephone network 10.
[0047]
(3) When the IP telephone priority number and the telephone number of the general telephone are input, for example, when the telephone number of the telephone device 3 of 0539-VV-WWWW is input from the telephone 21 after the IP telephone priority number 1111 In other words, the CPU 41 communicates with the telephone device 3 via an IP phone via a general telephone, that is, via the Internet 9, the gateway device 15, and the public switched telephone network 10.
[0048]
In the telephone device 2, when the user makes a call by IP telephone, the voice input from the handset of the telephone 21 is compressed by the codec 54 via the SLIC 56, and the analog voice signal is converted into a digital voice signal by the codec interface circuit 51. Then, the CPU 41 divides it into voice packets. Each voice packet is sent from the CPU 41 to the ADSL modem 23 via the LAN controller 53 and sent from the splitter 24 to the Internet 9 via the telephone line 25. Voice packets sent from the Internet 9 via the telephone line 25 are sent to the CPU 41 via the splitter 24, ADSL modem 23, and LAN controller 53 and recombined to become digital voice signals. The digital audio signal is converted into an analog audio signal by the codec interface circuit 51, decompressed by the codec 54, sent to the telephone 21 via the SLIC 56, and audio is output from the receiver of the telephone 21.
[0049]
On the other hand, in the telephone device 2, when a user makes a call on a general telephone, the voice input from the handset of the telephone 21 is compressed by the codec 54 via the SLIC 56, and the analog voice signal is sent from the line interface circuit 55 to the telephone from the splitter 24. The analog audio signal is separated by the splitter 15 via the line 25 and sent to the public switched telephone network 10. The analog voice signal sent from the public switched telephone network 10 via the telephone line 25 is separated by the splitter 24 and sent to the codec 54 via the line interface 55 of the VoIP adapter 22. The analog voice signal is decompressed by the codec 54 and sent to the telephone 21 via the SLIC 56, and voice is output from the handset of the telephone 21.
[0050]
Next, the operation when making a telephone call from the telephone device 2 to the telephone device 3 by IP telephone will be described. FIG. 3 is a conceptual diagram for explaining the communication operation of the IP telephone system. Here, the telephone numbers and URIs of the telephone device 2 and the telephone device 3 are registered in the ENUM server device 8 in advance.
[0051]
(1) In the telephone device 2, when the telephone number (050-XXXX-YYYY) for the IP telephone of the telephone device 3 is input from the telephone 21, information on this telephone number is sent to the SIP server device 6.
[0052]
(2) The SIP server device 6 inquires of the URI corresponding to the telephone number to the ENUM server device 8 via the Internet 9.
[0053]
(3) The ENUM server device 8 transmits a URI corresponding to the telephone number inquired to the SIP server device 6.
[0054]
(4) The SIP server device 6 notifies the SIP server device 7 that the telephone device 2 made a call to the telephone device 3 based on the URI sent from the ENUM server device 8.
[0055]
(5) The SIP server device 7 notifies the telephone device 3 that the telephone device 2 has received a call.
[0056]
(6) Upon acquiring this information, the telephone device 3 notifies the telephone device 2 that the ringing tone is being generated via the SIP server device 7 and the SIP server device 6.
[0057]
(7) When the user answers the phone, the telephone device 3 transmits a response signal to the telephone device 2 via the SIP server device 7 and the SIP server device 6.
[0058]
(8) The telephone device 2 directly transmits a signal indicating that the response from the telephone device 3 has been received to the telephone device 3, and the telephone device 3 receives this signal.
[0059]
(9) A call between the telephone device 2 and the telephone device 3 is started.
[0060]
Further, when the telephone device 2 or the telephone device 3 puts the telephone handset, the call ends.
[0061]
Next, when the telephone device 2 makes a telephone call to the telephone device 3 by IP telephone, an operation when the telephone device 3 cannot make a call for a reason other than during a call will be described.
[0062]
In the IP telephone system 1, communication is performed via the Internet 9, so if any device malfunctions or the load on any device increases and congestion occurs, a call is made to the other party. May not communicate. Therefore, in the IP telephone system 1 according to the embodiment of the present invention, when a call is made to the other party using the IP phone, if the other party is not busy and congestion occurs and the call cannot be made to the other party, the VoIP The adapter 22 redials every predetermined time using the IP phone until a call is possible.
[0063]
Note that the VoIP adapter 22 is set so as not to perform redialing when the user makes a call to the other party using a general telephone.
[0064]
When the SIP protocol is used, the VoIP adapter 22 makes a Busy response when the other party is busy and determines that the other party is busy. On the other hand, the VoIP adapter 22 makes a call impossible due to a reason other than during a call when a call is made to the other party by an IP phone and no response is received from the other party even if a predetermined time (for example, 30 seconds) elapses. Judge that it is. Note that the VoIP adapter 22 allows the user to change a certain time until it is determined that a call is impossible.
[0065]
The VoIP adapter 22 is set to repeat redialing when the user switches the redial setting switch of the setting switch 50. In addition, the VoIP adapter 22 can switch whether to repeat redial after confirming with the user or automatically repeat redial without confirming with the user depending on the setting of the redial setting switch.
[0066]
If the setting switch 50 is set to repeat redial after confirming with the user, the VoIP adapter 22 determines whether or not to repeat redial if a call becomes impossible for a reason other than during a call when an IP call is placed. Is displayed on the LCD 47, and a message for confirming whether or not to repeat redialing is output from the speaker 49. The VoIP adapter 22 does not perform redialing when the numeric keypad of the telephone 21 is operated so that redialing is not performed when communication is impossible. On the other hand, when the numeric keypad of the telephone 21 is operated so as to redial, the VoIP adapter 22 checks whether or not the other party's telephone device is able to make a call on the IP telephone every predetermined time. Is displayed on the LCD 47, and a message is sent from the speaker 49 to inform the user that the other party's telephone device is ready for a call. In addition, as a method of confirming whether or not the other party's telephone device is able to make a call by IP phone every predetermined time, redial the telephone number of the other party's telephone device (INVITE) and respond (ok) It is better to check if there is any. Also, it is only necessary to be able to confirm the response from the other party's telephone device. For example, inquire about what function the other party's telephone device has (OPTIONS) and check whether there is a response. You may make it do.
[0067]
In addition, when there is no response from the other party when redialing, the VoIP adapter 22 displays a message on the LCD 47 informing that the other party cannot make a call for reasons other than during the other party's call. The VoIP adapter 22 can also be set to output a message to that effect from the speaker 49 by voice.
[0068]
The cycle in which the telephone device 2 repeats redialing is set to a predetermined time, for example, about 15 minutes to 30 minutes. This is because the reason for the inability to call is thought to be due to the congestion of the line, so if you do not set it to redial after a certain amount of time, the line will become more congested, and the situation of inability to call will improve dramatically. This is because it may be not done. Further, if the time for repeating redialing is, for example, 10 minutes or more, the user can set / change the time for arbitrary time.
[0069]
When the telephone device 2 redials and confirms that the other party's telephone device is able to make a call, the telephone device 2 notifies the user by turning on or blinking the LED 45 or outputting a message from the speaker 49.
[0070]
On the other hand, when the redial setting switch of the setting switch 50 is set so that redialing is automatically repeated without confirming with the user, the VoIP adapter 22 becomes unable to make a call for reasons other than during a call when an IP phone is placed. Then, redialing is repeatedly performed every predetermined time, and the same operation as the case of redialing after confirmation to the user as described above is performed.
[0071]
The telephone device 2 has the following functions. That is, when the telephone device 2 makes a telephone call to the other party's telephone using a general telephone, or when calling the other party's telephone using an ordinary telephone via an IP telephone, the other telephone sets the general telephone and the IP telephone. If both of these can be used, it is possible to confirm at a predetermined time during a call whether or not it is possible to make a call with the other party's telephone using an IP telephone.
[0072]
When a general phone call is made from the telephone device 2 to the telephone device 3, the VoIP adapter 22 is able to respond to the VoIP adapter 32 of the telephone device 3 after a predetermined time (for example, 15 minutes) has elapsed since the general telephone was placed. Is output to the VoIP adapter 32 via the Internet 9. If there is no response from the VoIP adapter 32 after a lapse of a certain time (for example, 30 seconds) from the VoIP adapter 32, the VoIP adapter 22 determines that the IP telephone call is impossible. The elapse of the predetermined time is counted by the timer 52, and when the predetermined time elapses, the above operation is repeated.
[0073]
On the other hand, if the VoIP adapter 22 receives a response from the VoIP adapter 32 before a predetermined time elapses, the VoIP adapter 22 determines that a call can be made by the IP phone, and displays that on the LCD 47 or from the speaker 49 to that effect. Or a voice message such as a predetermined melody. When the user of the telephone device 2 confirms the sound displayed on the LCD 47 and the sound output from the speaker 49, the telephone device 2 (the user of the telephone device 3) informs the other party (user of the telephone device 3) that he / she wants to make a call again. Cut off. The user of the telephone device 2 can make a call using the IP phone by redialing the phone number of the IP phone.
[0074]
Next, the operation when making an IP phone call from the telephone device 2 to the telephone device 3 will be described based on a flowchart. FIG. 4 is a flowchart for explaining the operation when an IP phone call is made. In the following description, in order to simplify the description, detailed description of communication processing operations of the SIP server device 6, the SIP server device 7, and the ENUM server device 8 is omitted.
[0075]
When the telephone number is input from the telephone 21 by the user and the telephone number information is sent from the telephone 21 (s1), the CPU 41 of the VoIP adapter 22 in the telephone device 2 selects a line corresponding to the telephone number and makes a telephone call. While making a phone call to the device 3, the timer 52 starts timing and waits for a response from the phone device 3 (s2). That is, when the telephone number is a number designating an IP telephone (for example, 050-XXXX-YYYY), the CPU 41 sends telephone number information from the LAN controller 53 to the SIP server device 6 via the ADSL modem 23, splitter 24 and splitter 11. And attempts to talk with the telephone device 3 via the Internet 9. If the telephone number is a number that designates a general telephone (for example, 0539-VV-WWWW), the CPU 41 outputs telephone number information from the line interface 55 via the splitter 24 and the splitter 11, and the public switched telephone network 10. A telephone call with the telephone device 3 is attempted via. Further, when the telephone number is an IP telephone priority number and a telephone number of a general telephone (for example, 1111-0539-VV-WWWW), the CPU 41 sends a SIP server from the LAN controller 53 via the ADSL modem 23, the splitter 24 and the splitter 11. The telephone number information is output to the device 6, and a call with the telephone device 3 is attempted via the Internet 9, the gateway device 15, and the public switched telephone network 10.
[0076]
When the CPU 41 becomes able to make a call with the telephone device 3 before 30 seconds elapse (s3), the CPU 41 makes a call with the telephone device 3 (s4). When the call ends (s5), the process is ended.
[0077]
In step s3, if the telephone device 3 is in a call with another telephone and cannot make a call (s3, s6), the CPU 41 ends the process. On the other hand, if no response is received from the telephone device 3 even after 30 seconds have elapsed (s3, s6), the telephone number of the telephone device 3 input from the telephone 21 by the user is not a telephone number dedicated to the IP phone. And (s7), the process ends.
[0078]
When the telephone number of the telephone device 3 is a telephone number dedicated to the IP telephone (s7), the CPU 41 says, “Could not be connected to the other party via the IP telephone. Press the numeric keypad 1. If this processing is not necessary, leave the handset as is. ”Reads out the voice message from the ROM 42, decompresses the voice data with the codec 54, and connects the telephone 21 via the SLIC 56. The voice is output from the receiver (s8).
[0079]
When detecting that the hook button of the telephone 21 has been pressed, the CPU 41 determines that the handset has been placed (s9), and ends the process. On the other hand, when the CPU 41 detects that the numeric keypad 1 of the telephone 21 has been pressed, the timer 52 starts counting time (s10), and when 15 minutes have elapsed (s11), it redials the IP telephone number of the telephone device 3. At the same time, the timer 52 starts timing for 30 seconds (s12).
[0080]
If there is no response from the telephone device 3 even after 30 seconds have elapsed (s13), the CPU 41 performs the processing after step s10 again.
[0081]
On the other hand, when there is a response from the telephone device 3 until 30 seconds elapse, the CPU 41 blinks the LED 45 or operates the buzzer 48 to inform the user that the telephone device 3 can make a call by IP phone. A notification is made (s14). CPU41 will complete | finish a process, if the operation switch 49 is operated by the user and LED45 blinks or the operation | movement of the buzzer 48 is stopped (s15, s16).
[0082]
When the user inputs the telephone number dedicated to the IP telephone of the telephone device 3 from the telephone 21 and the telephone number information is sent from the telephone 21 (s1), the CPU 41 performs the processing from step s2 onward by using the IP telephone. A call is made with the telephone device 3, and the process is terminated when the call ends.
[0083]
Note that the notification means provided in the VoIP adapter 22 is not limited to the LED 45 and the buzzer 48, and may be other devices as long as the information can be notified to the user. For example, a configuration in which a voice message is output from a speaker or a configuration in which a notification mail is sent to a mobile phone possessed by the user may be used.
[0084]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0085]
If you cannot make a call due to a communication line problem or a problem with the other party's phone when you call the other party using an IP phone, the problem will be resolved and you can call Confirmation can be made to notify the user when the problem is solved and the call becomes possible. As a result, the user can grasp that the other party is able to make a call without redialing himself / herself when the other party's telephone cannot make a call for reasons other than during the call by making an IP phone call. In addition, by setting, for example, 15 to 30 minutes as the predetermined time and performing redialing at this time, it is possible to repeat redialing without applying a load to the communication line.
[0086]
In addition, since the user can select whether or not to repeat redial according to the situation of the user when calling the other party, if there is no need to rush to the other party, the IP phone You can repeat redial until you can talk to the other party. Also, if you want to make a call with the other party immediately, you can call the other party using a regular phone.
[0087]
Further, when redialing with an IP phone, the user can grasp that communication is impossible. For example, when the user is away from the seat for a while by configuring the notification means to display that communication is not possible, etc. However, the result of redialing can be easily grasped.
[0089]
In addition, since the IP telephone apparatus is provided with an IP telephone adapter, when an IP telephone is placed, if the other party cannot make a call for a reason other than during a call, the situation of the other party can be confirmed every predetermined time. Therefore, when the problem is solved, the user can make a call with the other party using the IP phone.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of an IP telephone system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a schematic configuration of a VoIP adapter.
FIG. 3 is a conceptual diagram for explaining a communication operation of the IP telephone system.
FIG. 4 is a flowchart for explaining an operation when an IP phone call is made.
[Explanation of symbols]
1-IP phone system 2,3-phone device 3,4-ISP
6,7-SIP server device 8-ENUM server device
9-Internet 10-Public switched telephone network
21,31-telephone 22,32-VoIP adapter

Claims (7)

A method of notifying the other party of an IP telephone adapter that makes a call with an IP telephone via the Internet or an IP dedicated line,
A calling process in which the calling IP phone adapter calls the other IP phone;
A redial process for confirming whether or not the other party IP telephone is able to make a call every predetermined time if the telephone call cannot be made with the other party IP telephone in a reason other than busy in the calling process;
A method of notifying the other party of an IP telephone adapter, comprising: a notifying step for notifying the fact that the other party's IP telephone is able to talk in the redial step.   A redial confirmation step for confirming whether or not to repeatedly make a call to the other party's IP phone every predetermined time when the other party's IP phone becomes incapable of talking for a reason other than busy in the calling step The other party state notification method of the IP telephone adapter according to claim 1.   2. The IP telephone adapter partner side state notification method according to claim 1, further comprising a communication inability notifying step of notifying the fact that the communication unit cannot communicate with the partner IP telephone in the redial step. A communication means for calling a partner IP phone via the Internet or an IP dedicated line and communicating with the partner IP phone;
When the other party IP phone is called by the communication means, if the call is impossible due to reasons other than the busy of the other party IP phone, the other IP phone is called every predetermined time by the communication means, Confirmation means for confirming whether the other party's IP telephone is capable of making a call;
An IP telephone adapter comprising: an informing means for informing when the other party's IP telephone is able to make a call. The informing means informs of a message for confirming whether or not to repeatedly make a call every predetermined time to the other party's IP telephone when a call becomes impossible due to reasons other than the busy of the other party's IP telephone. Item 5. The IP telephone adapter according to Item 4 . The IP telephone adapter according to claim 4 or 5 , wherein the notification means notifies that the other party's IP telephone is unable to talk. IP telephone apparatus provided with the IP telephone adapter according to any one of claims 4 to 6.

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