JP2002152421A - Telephone apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telephone apparatus capable of telling a desired business to a remote sender surely by using a remote sender call temination notification service. SOLUTION: In a controlling circuit 1, an analog line L is re-supplemented according to a call temination notification of a remote sender by using an SIR arrival, and re-transmission to the remote sender is carried out. Then, a voice message registered beforehand is sent from voice recording and playback circuit 8 to an analog telephone line L according to the response to the re- transmission by the remote sender.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a telephone device,
In particular, the present invention relates to a telephone device connected to a telephone line provided with a call termination destination notification service from a network side.

[0002]

2. Description of the Related Art In a public telephone network, a call termination destination notification service is provided to a subscriber. This service is a service in which, when a calling party is busy, a predetermined registration operation is performed from the calling side telephone apparatus to the network side, so that the network side notifies the calling side telephone apparatus of the subsequent call destination end call. is there. Hereinafter, with reference to FIG. 9 to FIG. FIG. 9 is a sequence diagram showing the operation of the call destination end notification service, FIG. 10 is a signal waveform diagram showing an incoming signal at the time of call destination end call notification, and FIG. 11 is a timing chart of the call destination end call notification. .

In FIG. 9, a calling telephone device and a called telephone device are respectively connected to a telephone network via telephone lines. First, it is assumed that the caller telephone device captures the telephone line in accordance with the operation of the user and dials out the telephone number of the callee, ie, the receiver telephone device, to make a call to the receiver telephone device (step 70). . In response to this, the telephone network checks the status of the receiving telephone device, and if the receiving telephone device is seizing the telephone line and cannot call, such as when the other telephone device is busy, the calling telephone device Is notified that the receiving-side telephone device is in use by a busy tone (BT) or the like (step 7).
1). Then, the calling telephone device disconnects the telephone line (step 72).

[0004] Here, when the user wants to make a telephone call to the called side, the user performs a service registration operation in order to use the caller's end-of-call notification service. First, the calling telephone device captures the telephone line and sends out a dial "159" (step 73). As a result, a voice message regarding the contents of the service is notified from the telephone network (step 74). Then, by sending a dial "1" for instructing service registration from the calling side telephone device, service registration is performed (step 75), and a voice message regarding completion of service registration is notified from the telephone network (step 76). ), The registration process of the call destination end call notification service ends.

Accordingly, the telephone network starts a call destination call end notification service, and in response to the registered call termination of the called-side telephone device, the calling-side telephone device is called by an SIR incoming call described later (step). 80). When the originating telephone device responds to this SIR call (step 81), a voice message regarding the termination of the receiving telephone device is notified from the telephone network (step 82). As a result, the user knows that the receiving-side telephone device has finished talking and is ready to call, and once disconnects the telephone line (step 83).

Subsequently, in order to instruct retransmission from the network side using this service, the telephone line is recaptured and dial "159" is transmitted (step 84).
A voice message about the contents of the service from the telephone network is notified (step 85). Then, a dial "3" is transmitted from the calling telephone device to the network side to instruct retransmission to the called party (step 86), so that the telephone network calls the called telephone device (step 87). ), In response to a response from the called telephone device (step 8).
8) The originating telephone device and the receiving telephone device are connected via the telephone network, and a call between them is started (step 89).

[0007] When the user registers such a call destination end call notification service on the network side, the call end telephone device can know the end of the call receiving telephone device. In addition, it is possible to call the receiving-side telephone device by a simple operation after the notification of the outgoing call destination from the telephone network.

[0008] In this call destination end call notification service, when the call end is notified from the telephone network to the calling telephone device, as shown in FIG.
IR termination is used. At the time of an incoming call, a frequency signal of 16 Hz is used in the analog telephone line, and the ringing pattern of the IR incoming call has an ON period of 1 as shown in FIG.
, And the frequency signals 90, 91,... Of such a pattern are repeated in a cycle of 3 seconds.

On the other hand, in the ringing pattern of the SIR incoming call, as shown in FIG. 10B, after a short ON period (t1 = 0.25 to 0.3 seconds) 95A of the frequency signal,
There is a short off-period (t2 = 0.25 to 0.3 seconds) 95B, and an even shorter on-period (t1 = 0.25 to 0.3 seconds).
95C is provided. Then, patterns 95 and 9 composed of two ON periods sandwiching such a short OFF period
6,... Are repeated every 12 seconds (about 36 seconds).

In the telephone network, assuming that the originating telephone device cannot respond to such an SIR reception for some reason, as shown in FIG. 11, a 5-minute interval (T2) from the first SIR reception. A maximum of four times is used to make a call to the calling telephone device using the SIR reception. At this time, S
The transmission period of the dial "3" following the transmission of the dial "159" after the response to the IR reception, the period during which the call can be redialed from the telephone network is 5 seconds from the response to the SIR reception in consideration of the reduction of the telephone network side load. Limited to a minute. Further, when the response to the SIR call arrives, it is considered that the caller's end-of-call notification service has been completed. Therefore, for example, when responding to the first SIR call, the remaining three SIR calls are terminated.

When monitoring the call termination of the destination telephone device, a period during which the call termination of the destination telephone device is monitored, that is, the waiting time (T
1) is limited to 45 minutes from the point of service registration. As a voice message from the telephone network to the calling telephone device, a registration completion notification message (M
In addition to 1), there is an end-of-call notification message (M2) that is sent out when the calling telephone device responds to the SIR call. If the other party's call waiting time (T1) exceeds 45 minutes, a service end notification message (M3) is sent out when responding to the first SIR call.

In the call destination notification service, when the service is registered, a fee for the service is charged to the telephone line of the caller. Also, during a period in which the service registration is valid, that is, during a period in which the telephone network is monitoring the end of the call destination, the line is captured and the dial "159" is transmitted followed by the dial "8". You can check the phone number of the registered destination. In addition, in the call destination call end notification service, only one call destination can be registered on one telephone line. This is the same for the registered party, that is, the destination, and the registration is not duplicated from a plurality of sources. Note that, by capturing the line and sending out the dial “9” following the dial “159”, it is possible to cancel the setting of the call destination already registered.

[0013]

However, in the conventional telephone device, when a call destination notification service is registered, the SIR from the telephone network for notifying the call termination of the call destination is registered.
After confirming the incoming call, you can re-dial and tell the message,
If the user has to move away from the telephone device for any reason, the S may take up to 45 minutes.
In some cases, it is not possible to wait for an IR call, and the caller may be absent even if the user contacts the caller again while moving or at the destination, and the caller's call will be terminated. However, there is a problem in that a desired message cannot be reliably transmitted to the call destination even though the useful call end notification service for notifying the call destination can be used.
The present invention is to solve such a problem,
It is an object of the present invention to provide a telephone device capable of reliably transmitting a desired message to a call destination using a call termination notification service.

[0014]

In order to achieve such an object, a telephone device according to the present invention re-establishes a telephone line as a call termination notification service when a call destination is busy. A service that notifies the end of the destination by a special incoming call from the network to the source by capturing and sending the specified dial from the source and registering the end of the destination notification on the network side A telephone device connected to a telephone line provided with, which re-captures the telephone line and redials the call destination in response to a call termination notification of the call destination due to a special incoming call Means, and a message sending means for sending a voice message registered in advance to a telephone line in response to a response of a call destination in response to the re-sending by the re-sending means.

Another telephone apparatus according to the present invention provides a call termination service for a call destination, in which when the call destination is busy, the telephone line is reacquired and a predetermined dial is sent from the caller to send the call. By registering the end call notification on the network side,
A telephone device connected to a telephone line provided with a service for notifying the end of a call destination by a special incoming call from the network side to the caller, making a call to the call destination and sending the call destination Is busy, the telephone line is reacquired in response to a predetermined service registration request operation, and a service registration instructing dial for instructing registration of the caller's call termination notification service is sent out, so that the caller's caller Service registration means for registering the call destination in the call notification service, and re-capturing the telephone line in response to the call termination notification of the call destination by a special incoming call after registration by the service registration means, and Re-transmitting means for re-transmitting, and message transmitting means for transmitting a pre-registered voice message to the telephone line in response to a response of the destination in response to the re-transmitting by the re-transmitting means. Is shall.

As a service re-registration, after the re-transmission by the re-transmission means, if the transmission destination is busy, the telephone line is re-acquired and a registration instruction dial for instructing registration of the transmission termination notification service is transmitted. The call destination may be re-registered to the call destination end call notification service. In this case, if the call destination does not answer within a predetermined ringing time after the re-transmission, a further predetermined After waiting for the waiting time, re-registration may be performed. In addition, a timer is provided to start the timer after responding to the special incoming call and to start timekeeping, and to stop after a predetermined retransmission effective period has elapsed. When the timer has not timed out during re-registration, re-registration is performed. Alternatively, the telephone line may be re-captured and a redial instruction dial for instructing the destination to be re-transmitted by the destination communication termination service may be transmitted.

[0017]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a telephone device according to an embodiment of the present invention. In this example, a single telephone connected to an analog telephone line provided with a call termination notification service is provided as an example. It is shown.
This telephone device includes diode bridges DB1, DB
2. Capacitor C, hook switch HS (HS1, HS
2), control circuit 1, incoming signal detection circuit 2, buzzer BZ,
Loop closing circuit 3, dial circuit 4, call circuit 5, handset TR, amplifier circuit 6, tone generator circuit 7, voice recording / reproducing circuit 8, dial key 9, function key 10, memory 11, display circuit 1.
2. Reverse detection unit 13, clock circuit 14, and BT
A (busy tone) detection circuit 15 is provided.

The diode bridge DB1 is connected to both ends of the analog telephone line L.
Rectified and supplied to the subsequent loop closing circuit 3 and communication circuit 5. The loop connection circuit 3 is connected between the diode bridge DB1 and the communication circuit 5, and closes the DC loop of the analog telephone line L in accordance with an instruction from the control circuit 1. A hook switch HS1 is provided in parallel with the loop closing circuit 3. The state of the hook switch is also input to the control circuit 1 using the other contact HS2 of the hook switch HS1.

The diode bridge DB2 is connected to both ends of the analog telephone line L via the capacitor C, and is used for ordinary IR reception and SIR reception (special reception) used in a call destination notification service for a telephone network. Rectifies the incoming signal, that is, the frequency signal of 16 Hz, transmitted from
The rectified output is supplied to the incoming signal detection circuit 2. The incoming signal detection circuit 2 outputs to the control circuit 1 an incoming output signal indicating the presence / absence of a frequency signal according to the ringing pattern of the IR incoming or SIR incoming, that is, on / off, from the rectified output of the diode bridge DB2. In addition, the buzzer BZ is driven in accordance with the ringing pattern at the time of incoming call to send out a ring tone.

The reverse detection circuit 13 detects a reverse signal (polarity inversion signal) transmitted from the telephone network to the analog telephone line L when the callee answers, and outputs the signal to the control circuit 1. The BT detection circuit 15 detects a BT (busy tone) indicating that the other party is busy from the analog telephone line L, and notifies the control circuit 1 of the BT. In the dial circuit 4, the control circuit 1
In response to the instruction from, a predetermined dial, such as the dial "159" used in the destination telephone number and the destination end call notification service, is transmitted to the analog telephone line L via the loop closing circuit 3.

The communication circuit 5 is connected to the analog telephone line L through the loop closing circuit 3 or the hook switch HS (HS1, HS2), and operates the handset TR to perform voice communication. The amplifying circuit 6 amplifies various audio signals, such as the speech from the speech circuit 5 (in the case of a speaker receiving operation), and outputs the amplified signal from the speaker SP. The voice recording / reproducing circuit 8 records the call voice from the amplifier circuit 6 as necessary,
The signal is reproduced and output to the amplifier circuit 6. The sound source circuit 7 outputs various kinds of signal sounds such as a ringing sound, a warning sound, and a confirmation sound to the user to the amplifier circuit 6.

The control circuit 1 comprises a CPU, has a timer 1A for measuring an arbitrary time length, detects the state of the hook switch HS2 and the operation input from the dial keys 9 and the function keys 10, and controls in advance. Each circuit is operated by operating according to a predetermined program stored in the circuit 1 or the memory 11. The memory 11 previously stores a program to be executed by the control circuit 1 as necessary, and stores information necessary for the processing operation of the control circuit 11. The information necessary for the processing operation includes, for example, the operation state of the telephone device itself, the state of the call termination call notification service, abbreviated telephone number, the redial telephone number, and the like. The phone number of the call destination registered in the notification service is stored.

The sound source circuit 7 outputs a warning sound for giving a preliminary warning of the end of the retransmission effective period from the speaker SP via the amplifier circuit 6 in addition to various ringing sounds and confirmation sounds. The voice recording / reproducing circuit 8 records the voice from the communication circuit 5 via the amplification circuit 6, for example, the contents of the call and the voice message of the user input from the handset TR, and reproduces this to reproduce the voice message. Output to the communication circuit 5. The display circuit 12 uses a display element such as an LED or an LCD to visually display the state of the analog telephone line L and the operating state of the telephone device, the state of the call termination service, and the elapse of the retransmission effective period. Visual display of time and remaining time. The clock circuit 10 supplies the control circuit 1 with a clock signal of a predetermined frequency required for time management using the timer 1A of the control circuit 1 in addition to calendar management and time counting operation.

In this embodiment, in the control circuit 1,
In response to the call termination notification of the calling party due to the SIR call, the telephone line is recaptured and redialed to the called party (retransmission means), and in response to the response of the called party corresponding to the retransmission. Thus, a voice message registered in advance is transmitted to the telephone line (message transmitting means). In addition, a service for instructing a call to a destination and instructing the destination to terminate the call by re-acquiring the telephone line in response to a predetermined service registration request operation when the destination is busy. By sending a registration instruction dial, the call destination is registered in the call destination end call notification service (service registration means).

If the destination is busy after redialing in response to the SIR call, re-acquire the telephone line and send out a registration instruction dial for instructing registration of the destination termination notification service. Re-registers the call termination notification service for the call destination (service re-registration means)
It is like that. At this time, if the called party does not answer within the specified ringing time after re-calling,
After waiting for a predetermined standby time, re-registration is performed. Also, after responding to the SIR call, the timer 1A is activated to start counting the retransmission effective period, and when the timer 1A has not timed out during re-registration, the telephone line is not re-registered and the telephone line is not re-registered. It recaptures and sends out a redial instruction dial for instructing a redial to the destination by the destination end call notification service. Note that these functional units are realized by the cooperative operation of the above-described hardware resources including the respective circuit units and the software resources of the programs executed by the control circuit 1.

The present embodiment is not limited to the single telephone shown in FIG. 1, but is also applicable to a key telephone device connected to an analog telephone line as shown in FIG. FIG. 2 is a block diagram showing the key telephone device according to the present embodiment. This key telephone device includes a main device 30 connected to one or more analog telephone lines 31 and a plurality of key telephones (slaves) 20A to 20N connected to these main devices 30 via the extension transmission line 20.
It is composed of

The main unit 30 includes an external line I / F unit 32, an incoming signal detection unit 33, a BT detection unit 34, a voice recording / reproducing unit (recording / reproducing unit) 35, a T switch 36, an extension line I / F unit 37, A control unit 38 and a main storage unit 39 are provided. Outside line I
The / F unit 32 is connected to the analog telephone line 31 from the telephone network, and individually performs termination control such as line capture / disconnection, reverse detection, dial transmission, and analog voice encoding / decoding processing for each line.

The incoming signal detection unit 33 includes an external line I / F unit 32
In parallel with the analog telephone line 31, detects an incoming signal from the telephone network, that is, a frequency signal of 16 Hz individually for each line, and outputs the detection output to the main control unit 38. The BT detection unit 34 is connected to the analog telephone line 31 in parallel with the external line I / F unit 32, individually detects BT (busy tone) indicating that the other party is busy from the telephone network for each line, and outputs the detection output. Output to the main control unit 38.

The extension I / F unit 37 exchanges voice data and control data by performing data transmission with the key telephones 20A to 20N via the extension transmission line 20.
In a T switch (time division switch) 36, a main control unit 38
Line I / F 32 and line I / F 3 in response to an instruction from
7 by exchanging encoded voice data with a predetermined analog telephone line 31 and a key telephone 2
A voice call between any of A to 2N is formed. The audio recording / reproducing unit 35 records the audio data from the T switch 36 and reproduces and outputs the audio data.

The main control unit 38 includes a CPU, has a timer 38A for measuring an arbitrary time length, and operates according to a predetermined program stored in the main control unit 38 and the main storage unit 39 in advance. Control each part of the device. Main memory 3
Reference numeral 9 stores in advance a program to be executed by the main control unit 38 as necessary, and stores information necessary for the processing operation of the main control unit 38. The information necessary for the processing operation includes, for example, the individual state of each analog telephone line 31, the individual operation state of the key telephones 2A to 2N, the abbreviated telephone number and the redial telephone number, the analog telephone line 31 (or the key telephone 2A). ... 2N), the state of the destination communication end notification service is stored, and the telephone number of the transmission destination registered in the destination communication termination notification service is stored in the idle waiting dial area.

Each of the key telephones 2A to 2N has the same configuration, and includes a transmission I / F unit 21 and a voice processing unit 2.
2, a slave unit control circuit 23, an operation unit 24, a display unit 25, and a memory 26 are provided. The transmission I / F unit 21 exchanges voice data and control data by transmitting data with the extension I / F unit 37 of the main device 30 via the extension transmission line 20. The audio processing unit 22 decodes the audio data from the main device 30 received by the transmission I / F unit 21 and outputs it to the handset TR or the speaker SP, and encodes the audio signal from the handset TR into audio data. And outputs it to the transmission I / F unit 21. Further, in addition to various ring tones, confirmation sounds, and the like, a warning sound for giving advance notice of the end of the retransmission effective period is output from the speaker SP.

The display unit 25 uses a display element such as an LED or an LCD to visually display the state of the analog telephone line 31 and the operation state of the key telephone, and also visually displays the state of the called party's end call notification service. I do. The operation unit 24 detects the operation of dial keys and various function keys, for example, an outside line button and a redial button used in a caller's end-of-call notification service, and detects the state of a hook switch and outputs it to the slave unit control unit 23 as operation information. I do.

The slave unit control unit 23 is constituted by a CPU, receives control data from the transmission I / F unit 21,
It operates by a predetermined program stored in advance in the slave unit control unit 23 and the memory 26 to control each unit of the key telephone. Further, it acquires operation information from the operation unit 24 and outputs it to the transmission I / F unit 21 as control data for the main device 30. The memory 26 previously stores a program to be executed by the slave unit control unit 23 as necessary, and stores information necessary for the processing operation of the slave unit control unit 23. As information necessary for the processing operation, for example, the operation state of the key telephone, display data displayed on the display unit 26, and the like are stored.

A known technique can be used as a method for identifying and detecting an IR incoming call (normal incoming call) and an SIR incoming call (special incoming call). When the telephone line is an analog telephone line, as shown in FIG.
Because the ringing pattern is different from the incoming call, its 16Hz
The length of the frequency signal, that is, the length of the ON period, may be measured.

When the incoming call is detected, not only the on-period of the frequency signal but also the off-period length of the frequency signal is measured, so that even if the incoming signal is started in the middle of the on-period, the incoming IR signal is regarded as the SIR incoming signal. Misjudgment does not occur, and an IR incoming call and an SIR incoming call can be accurately identified and detected. In addition, by checking the time length of the off period of the frequency signal, the incoming call can be detected earlier as compared with the case where the determination of the SIR call is made based only on the time length of the on period of the frequency signal. Thereby, the possibility that the SIR reception and the line transmission operation by the user occur almost simultaneously can be reduced, and confusion of the user due to the collision between the SIR reception and the line transmission operation can be reduced.

In the above, the telephone device and the key telephone device connected to the analog telephone line have been described. However, the present embodiment is applicable not only to the telephone device connected to the analog telephone line but also to the ISDN line for transmitting digital data. The present invention can also be applied to a connected telephone device or key telephone device. ISD
In the N line, call control such as incoming call and outgoing call is all performed by control messages exchanged with the network side. In particular, at the time of an incoming call, a call setting message is transmitted from the network side. The network-specific facility (ne
By referring to information from the network side called twork-specific facilities), it is possible to identify whether the incoming call is an IR incoming call or an SIR incoming call. In addition, the response from the caller and the busy state can be confirmed by a response message and a disconnection message from the network side.

FIG. 3 is a block diagram showing a telephone device connected to the ISDN line, and the same or equivalent parts as those in FIG. 1 are denoted by the same reference numerals. In this telephone device,
The external line I / F circuit 16 and the audio processing circuit 17 are different from those in FIG.
Is newly provided. The external line I / F circuit 16
It is connected to the DN line LA and performs digital data transmission with the network side, outputs various control messages from the network side to the control circuit 1, and outputs voice data to the voice processing circuit 17. Also,
Various control messages from the control circuit 1 and the voice processing circuit 1
7 is transmitted to the network side.

In the audio processing circuit 17, the external line I / F circuit 1
6, the audio data received from the network side is decoded into an audio signal and output to the handset TR or the speaker SP, and the audio signal from the handset TR is encoded into audio data and output to the external I / F circuit 16. . In addition to exchanging a voice signal or voice data with the voice recording / reproducing circuit 8, the speaker SP outputs an alarm sound for giving an advance warning of the end of the retransmission effective period, in addition to various ring tones and confirmation sounds.

FIG. 4 is a block diagram showing a main unit of the key telephone apparatus connected to the ISDN line.
The same or equivalent parts are denoted by the same reference numerals. In this key telephone device, an external line I / F 32A for an ISDN line 31A is provided instead of the external line I / F 32 in FIG. The external line I / F 32A is connected to the ISDN line 31.
A is connected to A and performs digital data transmission with the network side, outputs various control messages from the network side to the main control unit 38, and outputs voice data to the T switch 36. The main control unit 3
8 and the voice data from the T switch 36 are transmitted to the network side.

Next, the operation of this embodiment will be described with reference to the drawings, taking the telephone device shown in FIG. 1 as an example. The line transmission processing will be described with reference to FIG.
FIG. 5 is a flowchart showing the line transmission processing. FIG.
In the telephone device of (1), the analog telephone line L is captured by the operation of the hook switch HS1 (HS2) according to the off-hook operation by the user (step 100). Then, the control circuit 1 controls the dial circuit 4 based on the telephone number of the call destination input from the dial key 9 and the telephone number of the call destination stored in the memory 11,
A dial is sent from the loop closing circuit 3 to the analog telephone line L (step 101).

After that, the network calls a call destination corresponding to the telephone number. At this time, if the telephone line of the calling party is in a talking state with another party, a BT (busy tone) is transmitted from the network side to the analog telephone line L. The control circuit 1 confirms the presence or absence of BT, that is, whether the other party is talking, based on the output of the BT detection circuit 15 (step 102).
Is not detected (Step 102: YE
S), the process proceeds to a normal call process (step 103),
A series of processing ends. On the other hand, if the BT is detected and it is confirmed that the other party is busy (step 102: YES), a registration request of the end-call notification service is issued by a user's pressing of a function key, for example, a redial button, that is, a service registration request operation. Check if it was done (Step 10
4).

If there is a call termination service registration request (step 104: YES), after registering the call termination service on the network side (step 105), the user informs the destination of the call. The subject is recorded as a voice message from the receiver TR to the voice recording / reproducing circuit 8 via the amplifying circuit 6 (step 106), and a series of processes is terminated. If there is no end call notification service registration request in step 104 (step 104: NO) and the user performs a call termination operation such as on-hook (step 107: YES), the call termination operation causes an analog telephone line to be transmitted. L is released (step 108), and the series of processing ends.

Here, referring to FIG.
The service registration process will be described. FIG. 6 is a flowchart showing the service registration process. The control circuit 1
First, the telephone number of the called party transmitted earlier is stored in the idle waiting dial area of the memory 11 in preparation for a subsequent redial (step 110). At this time, the transmitted telephone number of the called party is usually stored in the memory 11 as redial data, and may be used.

Then, the loop closing circuit 3 is controlled to send the hooking signal to the analog telephone line L to re-capture the line (step 111), and the dial " 159P1 ”(step 112). Note that "P" means a pause for temporarily stopping dial transmission, which is inserted as necessary, and the period is set (the same applies hereinafter). As a result, the network side registers the destination call end notification service, and then controls the loop closing circuit 3 to release the analog telephone line L (step 11).
3) Control the timer 1A to activate the idle wait timer that counts the idle wait period specified in the call destination end call notification service, that is, the longest time (45 minutes) for monitoring the end of the call destination. Then (step 114), the series of processing ends.

Next, with reference to FIG. 7, a description will be given of the SIR incoming processing executed after the SIR incoming to the analog telephone line L is detected. FIG. 7 is a flowchart showing the SIR incoming processing. When detecting the incoming SIR, the control circuit 1 first controls the loop closing circuit 3 to capture the analog telephone line L, and automatically responds to the incoming SIR (step 120). Then, the timer 1A is controlled to activate a retransmission effective timer (5 minutes) for measuring the retransmission effective period after responding to the SIR call arrival (step 121), and is activated in the service registration process of FIG. Waiting idle timer (45 minutes)
Is checked (step 122).

If the idle waiting timer has not expired (step 122: NO), the loop closing circuit 3 is controlled to send a hooking signal to the analog telephone line L to re-establish the analog telephone line L. Capture (Step 1
23) The dial "159P3" (P is pause) is transmitted (step 124). As a result, re-transmission is performed from the telephone network to the transmission destination. In the control circuit 1, the timer 1
A, the call duration (eg, 1
A call timer for counting minutes is started (step 12).
5) Based on the output from the reverse detection circuit 13, it is checked whether or not the called party has responded to this retransmission (step 126).

If the answer of the call destination is confirmed in step 126 (step 126: YES), the voice recording / reproduction circuit 8 is controlled to record the message when registering the call end notification service of the call destination. The placed voice message is transmitted to the analog telephone line L via the amplifier circuit 6 and the communication circuit 5 (step 127). Then, after the transmission is completed, the loop closing circuit 3 is controlled to open the telephone line L (step 128), and a series of processing ends. As a result, the voice message of the user who recorded the message at the time of registering the call termination notification service of the call destination is notified to the call destination, and the user is away from the telephone device for some reason. Even if it is necessary to move to the destination, the desired message can be reliably transmitted to the destination using the destination end-of-call notification service.

In step 126, if the response of the call destination is not confirmed (step 126: NO) and the busy tone (BT) is detected by the BT detection circuit 13 (step 130: YES), the retransmission effective timer is activated. The time-up is checked (step 131). If the time has not elapsed (step 131: NO), the process returns to step 123. In the caller's call end notification service, even if the caller's caller is in a busy state again by redialing,
After the IR reception, if the retransmission is within the retransmission effective period (5 minutes), the retransmission function from the network side can be used repeatedly. According to the above-described processing procedure, it is possible to make a call again by effectively utilizing the call destination end call notification service. In addition, since it is unlikely that the called party has ended the call even if the call is immediately redone after confirming the BT in step 130, a step of waiting for a predetermined time, for example, about one minute, is added immediately after step 130. May be.

On the other hand, if it is determined in step 131 that the retransmission effective timer has expired (step 13).
1: YES), since the re-transmission function cannot be used repeatedly, the re-transmission processing described later is performed using the analog telephone line L (step 132), and the series of processing ends. Further, if the partner BT is not confirmed in step 130 (step 130: NO), and the calling timer times out (step 133: YES), the process waits for a certain period of time (step 134), and then proceeds to step 131. . Accordingly, if the call is continued to some extent in response to the retransmission in step 124, reregistration or retransmission can be performed again after a predetermined time has elapsed.

Next, the retransmission processing will be described with reference to FIG. FIG. 8 is a flowchart showing the retransmission processing. First, the control circuit 1 re-acquires the analog telephone line L (step 140), and dials the call destination stored in the idle waiting dial area of the memory 11 when registering the call termination notification service. Is transmitted (step 141), and after this retransmission, it is checked whether or not the busy tone (BT) is detected by the BT detection circuit 13 (step 142). Here, when the partner BT is detected (step 142: YES), the service registration process shown in FIG. 6 is executed (step 143), and a series of processes is ended.

Thus, even if the retransmission effective period has elapsed, the call can be automatically retransmitted using the telephone number of the transmission destination stored in the idle waiting dial area.
Even if it is T, re-registration of the caller's end-of-call notification service can be performed. Therefore, in response to the subsequent SIR reception, the above-described SIR reception processing is performed, and the voice message can be transmitted to the transmission destination.

Further, the partner BT is not detected (step 1).
42: NO), if the response of the other party is confirmed by the reverse detection circuit 13 (step 144: YES), the voice recording / reproducing circuit 8 is controlled to record the message at the time of registration of the outgoing call end notification service. The put voice message is transmitted to the analog telephone line L via the amplifier circuit 6 and the communication circuit 5 (step 145). Then, after the transmission is completed, the loop control circuit 3 is controlled to open the telephone line L (step 1).
46), a series of processing ends. As a result, even if the validity of the redialing period has expired, it is possible to automatically redial the call using the telephone number of the call destination stored in the idle waiting dial area, and to send a voice message according to the answer of the call destination. I can tell it ahead.

Although the single telephone shown in FIG. 1 has been described above as an example, in the key telephone shown in FIG. 2, the main control section 38 plays the role of the control circuit 1, and the present invention is implemented in the same manner as described above. The same operation and effect can be obtained. In addition,
In the key telephone device, the telephone line in which the call termination notification service is registered and the key telephone are associated with each other and managed in the main storage unit 39. What is necessary is just to output from the key telephone corresponding to a line. In addition, they are not connected to these analog telephone lines, but are connected to an ISD as shown in FIGS.
The present invention can be carried out in the same manner as described above, except that a single telephone or a key telephone connected to the N line is different from the analog telephone line in that incoming call detection, BT detection, and other party response detection are performed by control messages. The same operation and effect can be obtained.

[0054]

As described above, according to the present invention, as a call termination service for a call destination, when the call destination is busy, the telephone line is reacquired and a predetermined dial is transmitted from the call source. By registering the other party's end call notification to the network side, the network side is connected to a telephone line provided with a service of notifying the end of the call destination by a special incoming call to the caller to the caller. Means for reacquiring the telephone line and redialing the destination in response to the call termination notification of the destination by a special incoming call, and responding to the redial by the redialing means. Message sending means for sending a voice message registered in advance to the telephone line in response to the response of the called party, and in accordance with the response of the called party in response to the redial, Voice message In which it was to be sent to the telephone line. As a result, the voice message of the user who recorded the message at the time of registering the call termination notification service of the call destination is notified to the call destination, and the user is away from the telephone device for some reason. Even if it is necessary to move to the destination, the desired message can be reliably transmitted to the destination using the destination end-of-call notification service.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a telephone device (single telephone for an analog telephone line) according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a telephone device (a key telephone device for an analog telephone line) according to an embodiment of the present invention.

FIG. 3 shows a telephone device (I) according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a single telephone for an SDN line).

FIG. 4 shows a key telephone device (I) according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a main device of a key telephone device for an SDN line).

FIG. 5 is a flowchart showing a line transmission process.

FIG. 6 is a flowchart illustrating a service registration process.

FIG. 7 is a flowchart showing SIR incoming call processing.

FIG. 8 is a flowchart showing a service re-registration process.

FIG. 9 is a sequence diagram showing a processing operation of a call destination end call notification service.

FIG. 10 is a signal waveform diagram showing an incoming signal at the time of notification of a call destination end call.

FIG. 11 is a timing chart of a call destination end call notification.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Control circuit, 1A ... Timer, 2 ... Incoming signal detection circuit,
3: loop closing circuit, 4: dial circuit, 5: speech circuit, 6: amplifier circuit, 7: sound source circuit, 8: voice recording / reproducing circuit,
9: dial keys, 10: function keys, 11: memory, 1
2 display circuit, 13 reverse detection circuit, 14 clock circuit, 15 BT detection circuit, 16 external line I / F circuit, 17
... Sound processing circuit, HS1, HS2 ... Hook switch, L
... Analog telephone line, LA ... ISDN line, 20A-2
0N: key telephone, 20: extension line, 21: transmission I
/ F section, 22: voice processing section, 23: slave unit control section, 24 ...
Operation unit, 25 display unit, 26 memory, 30 main unit,
31 ... analog telephone line, 31A ... ISDN line, 32
... External line I / F section, 32A ... External line I / F section, 33 ... Incoming signal detection section, 34 ... BT detection section, 35 ... Sound recording / reproduction section, 36
... T switch, 37 ... extension I / F section, 38 ... main control section
38A: timer, 39: main storage unit.

Claims (5)

[Claims] Claims: 1. As a call termination service for a call destination, when the call destination is busy, the telephone line is recaptured, a predetermined dial is transmitted from the caller, and the call termination notification is sent to the network side. A telephone device connected to a telephone line provided with a service of notifying the end of the call destination by a special call from the network side to the caller by registering the special call, Re-transmitting means for re-capturing the telephone line and re-transmitting to the transmission destination in response to the call termination notification of the transmission destination by the transmission destination, and responding to the transmission destination in response to the re-transmission by the re-transmission means And a message transmitting means for transmitting a voice message registered in advance to the telephone line in response to the request. 2. As an outgoing call termination notification service, when the outgoing call destination is busy, the telephone line is recaptured, a predetermined dial is transmitted from the caller, and the outgoing call destination notification is sent to the network side. A telephone device connected to a telephone line provided with a service of notifying the end of the call destination by calling the special call from the network side to the call source by registering, If you call ahead and the other party is busy,
In response to a predetermined service registration request operation, by re-acquiring the telephone line and transmitting a service registration instruction dial for instructing registration to the caller's end-of-call notification service,
Service registration means for registering the call destination to a call termination notification service of the call destination; and re-capturing the telephone line in response to the call termination notification of the call destination by a special incoming call registered by the service registration means. Re-transmitting means for re-transmitting to the transmission destination, and transmitting a voice message registered in advance to the telephone line in response to the response of the transmission destination in response to the re-transmission by the re-transmission means. A telephone device comprising: sending means. 3. The telephone device according to claim 1, wherein, after the re-transmission by the re-transmission means, if the transmission destination is busy, the telephone line is re-captured to notify the transmission destination termination service. A telephone re-registering means for re-registering the call destination with the call termination notification service by sending a registration instruction dial instructing registration of the call destination. 4. The telephone device according to claim 3, wherein said service re-registration unit is further configured to determine whether said call destination does not answer within a predetermined ringing time after re-transmission by said service re-transmission unit. The telephone device, wherein the re-registration is performed after waiting for a standby time. 5. The telephone device according to claim 3, further comprising: timer means that starts after responding to the special incoming call and starts counting time, and stops after a predetermined retransmission effective period has elapsed. At the time of the re-registration, if the timer means has not timed out, the telephone line is re-acquired without performing the re-registration, and an instruction to re-transmit the call to the call destination by the call termination communication service is issued. A telephone device for transmitting a redial instruction dial.