JP2023126050A - Missed call notification device, telephone system, program, and missed call notification method - Google Patents

Abstract

To provide a missed call notification technique capable of quickly notifying a user of a missed call to a telephone.SOLUTION: A missed call notification device 1 placed between a telephone 2 and a telephone network 4 is used to notify a user of a missed call to the telephone 2. The missed call notification device 1 monitors a response to an incoming call from a telephone 6 to the telephone 2 via the telephone network 4, and, if the telephone 2 does not respond to the incoming call within a predetermined period of time, transmits a missed call notification including information about the telephone 6, which is a call source of the incoming call, to a mobile terminal 3 associated in advance with the telephone 2.SELECTED DRAWING: Figure 1

Description

The present invention relates to missed telephone call notification technology.

Patent Document 1 discloses a telephone that can determine the degree of urgency of the originator of a missed call. When this telephone receives multiple missed calls from the same caller, it flashes an LED (Light Emitting Diode) to notify the user of the urgency of the caller of the missed call.

Japanese Patent Application Publication No. 2002-271479

However, the telephone described in Patent Document 1 cannot notify the user of the urgency of the caller of the missed call when the LED is out of the user's field of vision. For example, if this telephone is installed at home and the user is out of the house, the user will not know that there has been a highly urgent call until he or she returns home.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a missed call notification technique that can quickly notify a user of a missed call to a telephone.

In order to solve the above problems, the present invention monitors the response to an incoming call to a telephone, and if the telephone does not respond after a predetermined period of time has elapsed, the call is sent to a mobile terminal linked to the telephone in advance. Send a missed call notification with caller information. Here, if the telephone does not respond after a predetermined period of time has elapsed, it will first respond to the call and send voice guidance asking whether or not to call back, and if the operation to request a call back is accepted, A missed call notification containing a message to that effect may be sent to a mobile terminal linked in advance to this telephone.

For example, the present invention
A missed call notification device disposed between a telephone and a telephone network,
response monitoring means for monitoring a response to an incoming call to the telephone;
If the telephone does not respond to the incoming call after a predetermined period of time has elapsed, a missed call notification including caller information of the incoming call is sent to a mobile terminal linked to the telephone in advance. and an incoming call transmission means.

In the present invention, if the telephone does not respond to an incoming call after a predetermined period of time has elapsed, a missed call notification including call origination information is sent to a mobile terminal linked to the telephone in advance. Send. Therefore, by carrying the mobile terminal, the user can be aware of incoming calls to the telephone even when the user is away from the place where the telephone is installed (for example, at home) (for example, when out of the house). Therefore, according to the present invention, it is possible to promptly notify the user of a missed call to the telephone.

FIG. 1 is a schematic configuration diagram of a telephone system according to an embodiment of the present invention. FIG. 2 is a sequence diagram for explaining a first operation example of a missed call in the telephone system according to an embodiment of the present invention. FIG. 3 is a sequence diagram for explaining a first operational example of a missed call in the telephone system according to an embodiment of the present invention, and is a continuation of FIG. 2. FIG. 4 is a sequence diagram for explaining a second operation example of a missed call in the telephone system according to an embodiment of the present invention. FIG. 5 is a sequence diagram for explaining a second operation example of a missed call in the telephone system according to an embodiment of the present invention, and is a continuation of FIG. 4. FIG. 6 is a schematic functional configuration diagram of the missed call notification device 1. As shown in FIG. FIG. 7 is a flow diagram for explaining the operation of the missed call notification device 1. FIG. 8 is a flowchart for explaining the operation of the missed call notification device 1, and is a continuation of FIG. 7. FIG. 9 is a schematic functional configuration diagram of the mobile terminal 3. As shown in FIG. FIG. 10 is a flow diagram for explaining the operation of the mobile terminal 3.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a telephone system according to this embodiment.

As shown in the figure, the telephone system according to the present embodiment includes a missed call notification device 1, a telephone 2 installed at a user's home, etc., and a mobile terminal 3 linked to the telephone 2 and carried by the user. , consists of.

The missed call notification device 1 is placed between the telephone 2 and a telephone network 4 such as an IP (Internet Protocol) telephone network or PSTN (Public Switched Telephone Networks), and monitors incoming calls from the telephone network 4 to the telephone 2. do. Then, the missed call from the telephone 2 is notified to the mobile terminal 3. The telephone set 2 is connected to the telephone network 4 via the missed call notification device 1, and enjoys telephone services provided by the telephone network 4. Furthermore, the mobile terminal 3 is a smart phone, a mobile phone, or the like, and is connected to the telephone network 4 via the base station 5 to enjoy telephone services provided by the telephone network 4 . It is assumed that a telephone 6 is connected to the telephone network 4 in addition to the telephone 2 and the mobile terminal 3.

FIGS. 2 and 3 are sequence diagrams for explaining a first operation example of a missed call in the telephone system according to the present embodiment.

When a call destined for the telephone 2 is sent from the telephone 6 via the telephone network 4, the missed call notification device 1 sends a ring tone to the telephone 2 and allows the telephone 2 to respond to the incoming call. Monitoring is started (S100).

Here, it is assumed that the user of the telephone 2 is not at the installation location of the telephone 2 (at home in this embodiment), but is out with the mobile terminal 3 with him. Therefore, the telephone 2 does not respond to the incoming call and times out after a predetermined period of time has elapsed (S101). In response to this, the missed call notification device 1 primarily responds to this incoming call and establishes a communication path with the telephone 6 (S102). Then, the missed call notification device 1 sends voice guidance to the telephone 6 via this communication path to guide the key operations for inputting whether or not to return the call and record the answering machine (S103).

Next, it is assumed that the user of the telephone 6 performs a callback request operation on the telephone 6 according to the voice guidance (S104). In response, the telephone 6 transmits a callback request, which is a DTMF (Dual-Tone Multi-Frequency) signal in response to the key operation corresponding to the callback request operation, to the missed call notification device 1 via the communication path. (S105).

Thereafter, when the user of the telephone 6 performs a call termination operation on the telephone 6 (S106), the telephone 6 performs a call termination process in cooperation with the missed call notification device 1. As a result, the communication path between the missed call notification device 1 and the telephone set 6 is released (S107).

On the other hand, when the missed call notification device 1 receives the call-back request from the telephone 6 via the communication path, when the communication path with the telephone 6 is released, the missed call notification device 1 receives the caller information including the telephone number of the telephone 6 and the call-back request. A missed call notification including a message indicating that a telephone call is requested is generated, and the missed call notification is sent to the mobile terminal 3 using a communication service such as a short message service or an e-mail (S108). In response to this, the mobile terminal 3 displays a missed call notification to notify the user of the mobile terminal 3 that there is a missed call on the telephone 2 and that the caller has requested a call back.

Next, it is assumed that the user of the mobile terminal 3 returns home, selects the missed call notification displayed on the mobile terminal 3, and performs a proxy calling operation by operating a predetermined key (S109). In response, the mobile terminal 3 uses communication services such as short message service and e-mail to send the missed call notification device 1 to the missed call notification device 1, which identifies the mobile terminal 3 using the caller information included in the selected missed call notification. A proxy call instruction with designation of the telephone 6 is transmitted (S110).

Next, the missed call notification device 1 makes a call to the telephone network 4 with the telephone 6 as the destination in accordance with the substitute call instruction received from the mobile terminal 3 (S111), and transmits a ring tone to the telephone 2, The telephone 2 is made to ring for an incoming call (S112).

Next, when the user of the telephone 6 performs a response operation on the telephone 6 (S113), the telephone 6 transmits a response to the missed call notification device 1 (S114). A communication path is established between the two parties. Similarly, when the user of the telephone 2 performs a response operation on the telephone 2 (S115), the telephone 2 transmits a response to the missed call notification device 1 (S116). A communication path is established between the two parties. Then, the missed call notification device 1 relays between the communication path with the telephone 6 and the communication path with the telephone 2 (S117). Thereby, the user of the mobile terminal 3 who has returned home can operate the mobile terminal 3 to establish a communication path between the telephone 2 and the telephone 6 that is the source of the return call request.

4 and 5 are sequence diagrams for explaining a second operation example of missed calls in the telephone system according to the present embodiment.

S100 to S103 shown in FIG. 2 are performed for a call that the telephone 6 makes to the telephone network 4 with the telephone 2 as the destination, and the call is sent via the communication path established between the missed call notification device 1 and the telephone 6. It is assumed that voice guidance is sent from the missed call notification device 1 to the telephone 6 to guide key operations for inputting whether or not a return call and answering machine are necessary (S130).

Then, it is assumed that the user of the telephone 6 performs an answering machine request operation on the telephone 6 according to the voice guidance (S131). In response to this, the telephone 6 transmits an answering machine request, which is a DTMF signal corresponding to the key operation corresponding to the answering machine requesting operation, to the missed call notification device 1 via the communication path (S132). Thereafter, when the user of the telephone 6 speaks into the telephone 6, the voice message is transmitted to the missed call notification device 1 via the communication path (S133). Then, the missed call notification device 1 records the voice message received from the telephone 6 by linking it to the telephone 6 (S134).

Thereafter, when the user of the telephone 6 performs a call termination operation on the telephone 6 (S135), the telephone 6 performs a call termination process in cooperation with the missed call notification device 1. As a result, the communication path between the missed call notification device 1 and the telephone set 6 is released (S136).

On the other hand, when the call path to the phone 6 is released, the missed call notification device 1 that has recorded the voice message sent from the phone 6 via the call path sends the caller information including the phone number of the phone 6 and A missed call notification is generated that includes a message that the call is recorded. Then, this missed call notification is sent to the mobile terminal 3 using a communication service such as short message service or e-mail (S137). In response to this, the mobile terminal 3 notifies the user of the mobile terminal 3 that there is a missed call on the telephone 2 and that there is an answering machine of the caller by displaying a missed call notification or the like.

Next, it is assumed that the user of the mobile terminal 3 selects the missed call notification displayed on the mobile terminal 3, and performs an answering machine playback operation by operating a predetermined key (S138). In response, the mobile terminal 3 uses communication services such as short message service and e-mail to send the missed call notification device 1 to the missed call notification device 1, which identifies the mobile terminal 3 using the caller information included in the selected missed call notification. An answering machine playback instruction with designation of the telephone 6 is transmitted (S139).

In response to this, the missed call notification device 1 sends a call to the telephone network 4, with the mobile terminal 3 as the destination (S140). Then, the user of the mobile terminal 3 performs a response operation to the call received from the missed call notification device 1 (S141), and the mobile terminal 3 transmits a response to the missed call notification device 1 (S142), thereby receiving the missed call. A communication path is established between the notification device 1 and the mobile terminal 3 (S143). Then, the missed call notification device 1 plays back the recorded voice message linked to the telephone 6 specified in the answering machine playback instruction, and sends the played voice message to the mobile terminal 3 via this communication path. (S144).

Next, details of the missed call notification device 1 and the mobile terminal 3 that constitute the telephone system according to the present embodiment will be explained. Note that since existing telephones can be used as the telephones 2 and 6, detailed explanation thereof will be omitted.

First, details of the missed call notification device 1 will be explained.

FIG. 6 is a schematic functional configuration diagram of the missed call notification device 1. As shown in FIG.

As illustrated, the missed call notification device 1 includes a telephone interface section 10, a telephone network interface section 11, a call control section 12, a relay section 13, a response monitoring section 14, a missed call notification transmission section 15, It includes a voice message recording section 16, a voice message reproduction section 17, and an instruction receiving section 18.

The telephone interface unit 10 is an interface for connecting to the telephone 2 , and the telephone network interface unit 11 is an interface for connecting to the telephone network 4 .

The call control unit 12 implements call control processing. Further, the call control unit 12 includes a primary response unit 120 and a voice guidance sending unit 121.

The primary response unit 120 primarily responds to an incoming call to the telephone 2 and establishes a communication path with the originator of the call.

When a call path is established by the primary response unit 120, the voice guidance sending unit 121 provides a key for inputting whether or not a return call and answering machine are required for the originator of the call that was initially answered via this call path. Sends voice guidance to guide operations.

Relay unit 13 relays communication between telephone 2 and telephone network 4 .

The response monitoring unit 14 monitors the response of the telephone 2 to the incoming call when a call to the telephone 2 is received from the telephone network 4 .

The missed call notification sending unit 15 sends a missed call notification to the mobile terminal 3 to notify the user of a missed call from the telephone 2 using a communication service such as short message service or e-mail.

The voice message recording unit 16 records the voice message received via the communication path established by the primary response unit 120 while linking it to the source of the voice message.

The voice message reproduction section 17 reproduces the voice message recorded by the voice message recording section 16 and transmits it to the mobile terminal 3.

The instruction receiving unit 18 receives an alternate calling instruction and an answering machine playback instruction from the mobile terminal 3 using communication services such as short message service and e-mail.

Note that the functional configuration of the missed call notification device 1 shown in FIG. al Signal Processor ) and other computers. Alternatively, in a general-purpose computer such as a PC (Personal Computer) that includes a CPU (Central Processing Unit), a memory, an auxiliary storage device such as a hard disk or a flash memory, and a communication interface such as a NIC (Network Interface Card), It is realized as a process by the CPU loading a predetermined program from the auxiliary storage device onto the memory and executing it.

7 and 8 are flowcharts for explaining the operation of the missed call notification device 1.

When a call to the telephone 2 is received from the telephone network 4 (YES in S200), the primary response unit 120 sends a ring tone to the telephone 2 and starts monitoring the response of the telephone 2 to this incoming call ( S201). If the telephone 2 does not respond to the incoming call (NO in S202) and times out after a predetermined period of time has elapsed (YES in S203), the primary response unit 120 responds to the incoming call and communicates with the call originator. A communication path is established between them (S204). Then, the voice guidance sending unit 121 sends to the call originator via this communication path voice guidance that guides key operations for inputting the necessity of calling back and recording the answering machine (S205).

Thereafter, when the primary response unit 120 receives a callback request from the originator of the primary answered call via the communication path (“return request” in S206), the primary response unit 120 receives a call termination instruction from the caller. Waiting for this, the call termination process is performed, and the communication path is released (S207). Then, the primary response unit 120 notifies the missed call notification sending unit 15 of the telephone number of the caller and instructs it to send a missed call notification (with a callback request). In response to this, the missed call notification transmitting unit 15 generates a missed call notification including caller information including the telephone number notified by the primary response unit 120 and a message requesting a return call, This missed call notification is sent to the mobile terminal 3 linked to the telephone 2 (S208).

Further, when the primary response unit 120 receives a voicemail request from the originator of the first-answered call via the communication path (“Voicemail request” in S206), the primary response unit 120 sends the voice message recording unit 16 a request to send the first-answered call. Provide your original phone number and instruct a voice message to be recorded. In response to this, the voice message recording unit 16 records the voice message sent from the originator of this call via the communication path established by the primary response unit 120, linking it to the telephone number of the originator. (S209). Then, the primary response unit 120 waits for a call termination instruction to be sent from the caller, performs call termination processing, and releases the communication path (S210). Then, the primary response unit 120 notifies the missed call notification sending unit 15 of the caller's telephone number and instructs it to send a missed call notification (with voice mail). In response to this, the missed call notification sending unit 15 generates a missed call notification including caller information including the telephone number notified by the primary response unit 120 and a message to the effect that there is a voicemail. is transmitted to the mobile terminal 3 linked to the telephone 2 (S211).

Furthermore, upon receiving the proxy call instruction from the mobile terminal 3 (YES in S212), the instruction receiving unit 18 notifies the call control unit 12 of the proxy call instruction. In response to this, the call control unit 12 makes a call to the telephone network 4 to the telephone number designated by the proxy call instruction, and also sends a ring tone to the telephone set 2 (S213). Then, the call control unit 12 receives responses from each of the destination and the telephone 2, and establishes a communication path with each, and the relay unit 13 relays communication between the two (S214). This allows a call between the destination and the telephone 2 to be made.

Further, upon receiving the answering machine playback instruction from the mobile terminal 3 (YES in S215), the instruction receiving unit 18 notifies the call control unit 12 of the answering machine playback instruction. In response to this, the call control unit 12 transmits a call to the telephone network 4 to the mobile terminal 3, which is the source of the answering machine playback instruction, and receives a response from the mobile terminal 3. 3 is established (S216). Next, the call control section 12 notifies the voice message reproduction section 17 of the telephone number specified in the answering machine reproduction instruction and instructs the voice message reproduction section 17 to reproduce the voice message. In response to this, the voice message playback section 17 plays back the recorded voice message linked to this telephone number, and the call control section 12 transmits this voice message to the mobile terminal 3 via the established communication path. (S217).

Next, details of the mobile terminal 3 will be explained.

FIG. 9 is a schematic functional configuration diagram of the mobile terminal 3. As shown in FIG.

As illustrated, the mobile terminal 3 includes a wireless interface section 30, a man-machine interface section 31, a telephone function section 32, a missed call notification receiving section 33, and an instruction transmitting section 34.

The wireless interface section 30 is an interface for connecting to the telephone network 4 via a wireless connection with the base station 5.

The man-machine interface unit 31 is an interface for the user to make a call, present information to the user, or receive various operations from the user, and is equipped with a microphone and speaker that functions as a handset, and a touch sensor function. It has an input/output device such as a display.

The telephone function unit 32 performs processing necessary for the mobile terminal 3 to function as a telephone.

The missed call notification receiving unit 33 receives the missed call notification from the missed call notification device 1 using communication services such as short message service and e-mail.

The instruction transmitter 34 transmits an alternate call instruction and an answering machine playback instruction to the missed call notification device 1 using communication services such as short message service and e-mail.

Note that the functional configuration of the mobile terminal 3 shown in FIG. 9 is also realized in hardware by an integrated logic IC such as an ASIC or FPGA, or by a DSP or the like, similar to the functional configuration of the missed call notification device 1 shown in FIG. 6. It is realized in software by a computer. Alternatively, in a general-purpose computer such as a mobile phone, smart phone, or tablet PC, which is equipped with a CPU, a memory, an auxiliary storage device such as a flash memory, and a wireless communication interface such as a wireless adapter, the CPU assists a predetermined program. It is realized as a process by loading it onto memory from a storage device and executing it.

FIG. 10 is a flow diagram for explaining the operation of the mobile terminal 3.

When the missed call notification receiving unit 33 receives the missed call notification from the missed call notification device 1 via the wireless interface unit 30 (YES in S230), it displays this missed call notification on the man-machine interface unit 31 (S231).

Further, when the instruction transmitting unit 34 receives a proxy calling operation to select a missed call notification that includes a message requesting a call back from among the missed call notifications displayed on the man-machine interface unit 31, ( (YES in S232), generates a proxy call instruction with designation of the telephone number of the caller information included in the missed call notification selected in this proxy call operation, and sends the missed call notification device 1 via the wireless interface unit 30. This proxy call instruction is transmitted to (S233).

Further, when the instruction transmitting unit 34 receives an answering machine playback operation for selecting a missed call notification including a message indicating that there is an answering machine from among the missed call notifications displayed on the man-machine interface unit 31 (YES in S234), ), generates an answering machine playback instruction with designation of the telephone number of the caller information included in the missed call notification selected by this answering machine playback operation, and sends it to the missed call notification device 1 via the wireless interface unit 30. This message reproduction instruction is transmitted (S235). Then, when a call originating from the missed call notification device 1 arrives, the telephone function section 32 sends a ring tone to the man-machine interface section 31. Then, a response operation is received from the user via the man-machine interface unit 31, and a communication path is established with the missed call notification device 1 (S236). Thereafter, the telephone function section 32 receives the voice message from the missed call notification device 1 via this communication path, and outputs it to the man-machine interface section 31 (S237).

An embodiment of the present invention has been described above.

In this embodiment, the missed call notification device 1 monitors the response to the incoming call to the telephone 2, and if the telephone 2 does not respond after a predetermined period of time, the missed call notification device 1 monitors the response to the incoming call to the telephone 2. A missed call notification including call originator information is sent to the terminal 3. Therefore, by carrying the mobile terminal 3, the user of the telephone 2 can be aware of incoming calls to the telephone 2 installed at home even when the user is out. Therefore, according to the present embodiment, it is possible to quickly notify the user of a missed call to the telephone 2.

Furthermore, in the present embodiment, if the telephone 2 does not respond to an incoming call to the telephone 2 even after a predetermined period of time has elapsed, the missed call notification device 1 provides a primary response to the call and terminates the call. Voice guidance is sent to the caller asking whether or not a call should be returned. When a return call request is received from the caller, a missed call notification including a message to that effect is sent to the mobile terminal 3 linked to the telephone 2 in advance. Therefore, according to the present embodiment, it is possible to know from the message included in the missed call notification whether the business of the person receiving the missed call is an urgent matter that requires a call back. Improved convenience.

Furthermore, in the present embodiment, the voice guidance inquires as to whether or not a return call and an answering machine are necessary, and when the missed call notification device 1 receives a request for an answering machine from the caller to whom the call was initially answered, A voice message is received and recorded from the caller, and a missed call notification including a message indicating that there is an answering machine is sent to the mobile terminal 3. Then, when receiving an answering message reproduction instruction from the mobile terminal 3, the recorded voice message is reproduced and sent to the mobile terminal 3. Therefore, according to the present embodiment, the user can know that there is a voicemail from the message included in the missed call notification when out and about, and can also play back the voicemail and check its contents. This further improves convenience.

In addition, in the present embodiment, when the missed call notification device 1 receives from the mobile terminal 3 a substitute call instruction with designation of a phone number in the caller information included in the missed call notification, the missed call notification device 1 inputs this phone number. A call to be called is sent to the telephone network 4, and the telephone 2 is called to establish a communication path between the telephone number and the telephone 2. Therefore, according to the present embodiment, it is possible to establish a communication path between the telephone 2 and the other party of the missed call by operating the mobile terminal 3, thereby further improving convenience.

Note that the present invention is not limited to the above-described embodiments, and many modifications can be made within the scope of the invention.

For example, in the embodiment described above, the missed call notification device 1 sends the missed call notification to the mobile terminal 3 using communication services such as short message service and e-mail. However, the present invention is not limited thereto. The missed call notification device 1 makes a call to the mobile terminal 3, establishes a communication path with the mobile terminal 3, and transmits a missed call notification using a DTMF signal to the mobile terminal 3 via this communication path. You can.

Further, in the embodiment described above, the mobile terminal 3 uses communication services such as short message service and e-mail to send the proxy call instruction and the answering machine playback instruction to the missed call notification device 1. However, the present invention is not limited thereto. The mobile terminal 3 makes a call to the missed call notification device 1, establishes a communication path with the missed call notification device 1, and makes a proxy call to the missed call notification device 1 via this communication path using a DTMF signal. An instruction and an instruction to play an answering machine may also be sent.

Further, in the above embodiment, the voice message recorded in the missed call notification device 1 may be confirmed on the telephone 2. For example, the user puts the telephone 2 off-hook and sends an answering machine playback instruction to the missed call notification device 1 using a DTMF signal. A voice message linked to the number may be played back and sent to the telephone 2.

Further, in the above embodiment, the missed call notification device 1 may be built into the telephone 2.

1: Missed call notification device 2, 6: Telephone 3: Mobile terminal 4: Telephone network 5: Base station 10: Telephone interface section 11: Telephone network interface section 12: Call control section 13: Relay section 14: Response monitoring section 15: Missed call notification transmitting unit 16: Voice message recording unit 17: Voice message playback unit 18: Instruction receiving unit 30: Wireless interface unit 31: Man-machine interface unit 32: Telephone function unit 33: Missed call notification receiving unit 34: Instruction transmitting unit 120: Primary response section 120: Voice guidance sending section

Claims (8)

A missed call notification device disposed between a telephone and a telephone network,
response monitoring means for monitoring a response to an incoming call to the telephone;
If the telephone does not respond to the incoming call after a predetermined period of time has elapsed, a missed call notification including caller information of the incoming call is sent to a mobile terminal linked to the telephone in advance. A missed call notification device comprising: incoming call transmitting means. The missed call notification device according to claim 1,
further comprising voice guidance sending means for initially responding to the incoming call and inquiring whether or not a callback is necessary when the telephone does not respond to the incoming call after a predetermined time has elapsed;
The missed call sending means includes:
If the telephone does not respond to the incoming call after a predetermined period of time and receives a return call request from the caller of the incoming call to which the telephone has responded in the first place, the mobile terminal is requested to return the call. A missed call notification device, characterized in that the missed call notification includes a message to the effect that the missed call notification is sent. The missed call notification device according to claim 1,
If the telephone does not respond to the incoming call after a predetermined period of time has elapsed, a voice guidance sending unit that primarily responds to the incoming call and inquires as to whether or not an answering machine is necessary;
If the telephone does not respond to the incoming call after a predetermined period of time has elapsed and receives a voicemail request from the caller of the incoming call to which the telephone has initially responded, receiving and recording a voice message from the caller; a voice message recording means for
further comprising voice message reproduction means for reproducing the voice message recorded by the voice message recording means and transmitting it to the mobile terminal when a voice message reproduction instruction is received from the mobile terminal,
The missed call sending means includes:
A missed call notification device, characterized in that when a voice message is recorded by the voice message recording means, the missed call notification including a message to the effect that the voice message has been recorded is transmitted to the mobile terminal. The missed call device according to any one of claims 1 to 3,
A missed call notification device, characterized in that it is built into the telephone. A missed call notification device according to any one of claims 1 to 4,
When a proxy call instruction with a designated telephone number is received from the mobile terminal, a call to the telephone number is sent to the telephone network, the telephone is called, and the telephone number is sent to the telephone number. A missed call notification device further comprising call control means for establishing a communication path between the missed call notification device and the missed call notification device. A telephone system comprising: a missed call notification device according to claim 5 disposed between a telephone and a telephone network; and a mobile terminal linked to the telephone in advance,
The mobile terminal is
Missed call receiving means, when receiving a missed call notification from the missed call notification device, displays a telephone number included in the missed call notification to notify the telephone of a missed call;
instruction sending means for transmitting a proxy calling instruction accompanied by designation of a telephone number included in the missed call notification to the missed call notification device when a proxy calling operation for a missed call to the telephone is accepted; A telephone system characterized by: A program that causes a computer to function as a missed call notification device placed between a telephone and a telephone network,
a response monitoring means for monitoring a response to an incoming call to the telephone, and a mobile terminal linked in advance to the telephone when the telephone does not respond to the incoming call after a predetermined period of time; A program that causes the computer to function as a missed call sending unit that sends a missed call notification including caller information of the incoming call. A missed call notification method for notifying a missed call of a telephone using a missed call notification device disposed between a telephone and a telephone network, the method comprising:
The missed call notification device includes:
monitoring responses to incoming calls to the telephone;
If the telephone does not respond to the incoming call after a predetermined period of time has elapsed, a missed call notification including caller information of the incoming call is sent to a mobile terminal linked in advance to the telephone. A missed call notification method characterized by:

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