JP2002152375A - Telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit a user to easily recognize whether calling opposite party clear-out service is registered or not by a using telephone line. SOLUTION: In a control circuit 1, the advancing state of calling opposite party clear-out notice service registered by using an analog telephone line L is managed by a memory 11. A visible display showing the advancing state managed by the memory 11 is performed by a display circuit 12 in accordance with an operation for selecting the analog telephone line L. When a system is connected to a plurality of telephone lines such as a key telephone system, the advancing state of service is managed at every telephone line, and the visible display showing the advancing state of the telephone line is performed in accordance with an operation for selecting one of the telephone lines.

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 FIGS. FIG. 12 is a sequence diagram showing the operation of the call destination end call notification service, FIG. 13 is a signal waveform diagram showing an incoming signal at the time of call destination call end notification, and FIG.
Reference numeral 4 is a timing chart of the call destination end call notification.

In FIG. 12, 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, the telephone network checks the state of the receiving telephone device,
When the called telephone device is busy with another telephone device, for example, when the telephone line is seized and a call cannot be made, the called telephone device is in use by a busy tone (BT) to the calling telephone device. Is notified (step 71). 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 outgoing call destination notification service, when the telephone network notifies the outgoing telephone device of the outgoing call destination, as shown in FIG.
IR termination is used. At the time of the 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. 13B, 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 call for some reason, as shown in FIG. 14, a 5-minute interval (T2) from the first SIR call is received. 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 apparatus, only a ring tone is transmitted in response to an SIR call from the telephone network by the call termination notification service of the call destination. There was a problem that the user could not confirm whether the end call notification service was registered. If the call termination service is registered,
After that, the end of the call destination is notified by the SIR reception, so it is better to refrain from using the telephone line if possible. However, if it is not known whether the service is registered in the telephone line to be used from now on, such a measure cannot be taken. An object of the present invention is to solve such a problem, and an object of the present invention is to provide a telephone device that allows a user to easily confirm whether or not a call termination service is registered on a telephone line to be used. And

[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 the telephone line provided with the management means for managing the progress status of the call termination notification service registered using the telephone line, and an operation for selecting the telephone line. Display means for performing a visual display indicating the progress status managed by the management means.

Another telephone apparatus according to the present invention recalls a telephone line and sends a predetermined dial from the caller when the caller is busy as a caller's call termination notification service. By registering the other party's end call notification to the network side, you can connect to multiple telephone lines that provide a service to notify the end of the call destination by a special incoming call from the network side to the caller. Means for managing the progress of the call termination notification service registered using the telephone line for each telephone line, and managing means according to an operation of selecting one of the telephone lines. And a display means for performing a visual display indicating the progress state of the telephone line managed by.

[0016]

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 a capacitor C, and is used for ordinary IR reception and SIR reception (special reception) used in a call termination notification service of a transmission destination. 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 called party answers, and outputs it 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 via 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 is composed of a CPU and has a timer 1A for measuring an arbitrary time length. The control circuit 1 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, from the speaker SP via the amplifier circuit 6, an alarm sound for giving a preliminary warning of the end of the retransmission effective period, in addition to various ring tones 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,
The progress of the call termination / end-of-call notification service registered using the telephone line is managed (management means), and the progress managed by the management means is visually displayed according to the operation of selecting the telephone line (display means). ). In particular, when the telephone line is connected to a plurality of telephone lines such as a key telephone device, the progress of the service is managed for each telephone line, and is managed by the management unit in accordance with an operation of selecting one of the telephone lines. The progress of the telephone line is visually displayed. Note that these functional units correspond to the hardware resources composed of the respective circuit units and the control circuit 1.
This is realized by cooperating with software resources by a program executed by the program.

Further, 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 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 detecting section 33 includes an external line I / F section 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 section 38 comprises a CPU, has a timer 38A for measuring an arbitrary time length, and operates according to a predetermined program stored in the main control section 38 and the main storage section 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 destination communication end 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 comprises a CPU, receives control data from the transmission I / F unit 21, and
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 25, 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.

At the time of this incoming call detection, the off-period length of the frequency signal as well as the on-period of the frequency signal is measured, so that even if the incoming signal transmission 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.

Although the telephone device and the key telephone device connected to the analog telephone line have been described above, the present embodiment is applicable not only to the telephone device connected to the analog telephone line but also to the ISDN line for digital data transmission. 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 16
The audio data received from the network side is decoded into an audio signal, output to the handset TR or the speaker SP, and the audio signal from the handset TR is encoded into audio data, and the external line interface 16
Output to In addition to exchanging audio signals or audio data with the audio recording / reproducing circuit 8, various ring tones,
In addition to the confirmation sound, a warning sound for giving a preliminary warning of the end of the retransmission effective period is output from the speaker SP.

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 apparatus shown in FIG. 1 as an example. The service management process will be described with reference to FIG. FIG. 5 is a flowchart showing the service management process. The control circuit 1 of the telephone device of FIG. 1 repeatedly executes the service management processing shown in FIG. 5 in order to manage the call termination communication service. In the following, the function key 10
As an example, a description will be given assuming that a service button (retransmission request button) for instructing retransmission to the transmission destination registered in the transmission destination end call notification service is provided.

The control circuit 1 firstly performs a service registration operation of the call destination end call notification service by the user based on the operation of the dial key 9 or the function key 10, for example, pressing the dial "1" following the dial "159". The presence / absence of the operation is detected, and in response to the detection of the service registration operation (step 100: YES), a telephone number registration process for registering the dial of the destination of the service registration is performed (step 101). At this time, the service button may also be used, and the operation of pressing the service button when the service registration is not performed may be regarded as the service registration operation. In this case, the operation of pressing the service button may be detected.

Further, based on the incoming call output signal from the incoming call signal detection circuit 2, the SI from the network side corresponding to the call termination of the transmission destination is performed.
If the R incoming call is detected (Step 102: YE
S), an SIR reception process for registering and setting that the service progress state has shifted to the retransmission effective period after the SIR reception is performed (step 103). In addition, in response to the expiration of an idle waiting timer or a retransmission effective timer described later (step 104: YES), a setting release process for releasing the setting of the managed service is performed (step 10).
5).

If a telephone line selection operation such as pressing of an outside line button by the user is detected (step 106: YES), the progress status of the call termination destination notification service for the selected analog telephone line L is performed. Is displayed, and a state display process of shifting to transmission is performed (step 107), and a series of processes is ended. In the case where there are a plurality of telephone lines as in the button telephone operation shown in FIG.
The service is executed individually for the telephone line in which the service is registered. As a result, information on the call termination notification service of the destination, such as idle waiting dial data, presence / absence of service registration in the service registration line area, idle waiting timer, SIR reception count, service progress status, and the like are stored in the memory 11 in each telephone line. It is managed for each.

Next, the telephone number registration process will be described with reference to FIG. FIG. 6 is a flowchart showing the telephone number process. Normally, when dial data input by the dial key 9 or the like is transmitted to the analog telephone line L, the dial data is stored in the memory 11 as redial data. In the control circuit 1, the dial data of the call destination is stored in the memory 11 as redial data at the time of calling to the call destination performed prior to the telephone number registration process.
From the redial data (step 11).
0). Then, the redial data is stored in the idle waiting dial area of the memory 11 in preparation for a subsequent redial (step 111).

Subsequently, the fact that the caller's call termination service has been registered on the telephone line is stored in the service registration line area of the memory 11 (step 112). At this time,
In the case of a key telephone device, a line number indicating the telephone line may be stored. Then, using the timer 1A, an idle waiting timer for measuring a call end wait time (45 minutes) for monitoring the call destination on the network side by the call destination end notification service is activated (step 113). The number of SIR calls indicating the number of SIR calls to the telephone line is cleared (step 114), and the status of waiting for idle is stored in the memory 11 as the progress status of the call termination notification service (step 115). ), And a series of processing ends.

Next, the SIR incoming call processing will be described with reference to FIG. FIG. 7 is a flowchart showing the SIR incoming processing. First, in response to the detection of the SIR call, the control circuit 1 shifts the progress state of the call termination notification service for the telephone line on which the SIR call has been received to the state with the SIR call, ie, the call end call state. This is stored in the memory 11 (step 120). And
The number of incoming SIRs of the telephone line is incremented by 1 (step 12
1) It is checked whether or not a response operation to the SIR call, such as an off-hook operation, has been performed by the user (step 122).

Here, when the response operation is performed (step 122: YES), in response to a subsequent call termination operation such as an on-hook operation by the user (step 123: YE).
S) Using the timer 1A, activate a retransmission effective timer for measuring a period during which retransmission from the network side to the destination using the service is effective, that is, a retransmission effective period (step 124). Is completed. In step 122, no response operation is performed (step 122: N
O) If the number of SIR calls is the fourth, that is, if it is the last SIR call (step 125:
(YES), the process proceeds to step 124, and if less than four times (step 125: NO), a series of processing ends.

Next, the service release processing will be described with reference to FIG. FIG. 8 is a flowchart showing the setting release processing. First, the control circuit 1 clears the empty waiting area of the memory 11 (step 130), and clears the telephone line stored in the service registration line area (step 131). Then, the timer 1A is controlled to stop the idle waiting timer (step 13).
2), stop the retransmission effective timer (step 13)
3). Subsequently, while clearing the display on the display circuit 12 relating to the call termination communication service (step 1).
34), clear the number of incoming SIRs (step 13)
5). Further, the service progress state stored in the memory 11 is cleared (step 136), and a series of processing ends.

Next, the state display processing will be described with reference to FIG. FIG. 9 is a flowchart showing the status display processing. The control circuit 1 first captures the selected analog telephone line L (step 140), and refers to the service registration line area of the memory 11 to determine whether the call termination destination notification service is registered on the telephone line. It is checked whether it is (step 141). At this time, in the case of the key telephone device, a telephone line selected from a plurality of telephone lines is captured, and it is checked whether or not service registration has been performed on the telephone line.

Here, if the service is registered (step 141: YES), the display circuit 12 is controlled to indicate that the caller's end-of-call notification service is registered. Is blinked (step 142), and the lamp of the outside line button is blinked (step 143). And the display circuit 1
A display indicating that the service is being registered is performed on the LCD display unit 2 using characters and symbols (step 144), and the process proceeds to step 145 described later. On the other hand, if the service has not been registered in step 141 (step 14
1: NO), the process proceeds to step 145 without displaying the service button or outside line button lamp, or displaying that the service is being registered on the LCD display unit.

As described above, the progress of the call termination notification service registered using the telephone line is managed, and the progress managed by the management means is visually displayed according to the operation of selecting the telephone line. So, like before,
SI from the telephone network side by the call destination notification service
Compared to the case where only a ring tone is transmitted in response to an R incoming call, it is possible to easily confirm whether or not the caller's end call notification service is registered on the telephone line to be used. As a result, if the caller's call end notification service is registered,
Thereafter, since the end of the call destination by the SIR call is notified, the use of the telephone line is refrained as much as possible, so that the call end notification service of the call destination can be used smoothly.

When the lamp of the service button or the outside line button is made to blink, the display method such as the blinking speed may be changed based on the more detailed progress of the service. For example, when the progress of the service is during service registration indicating the period from the service registration to the arrival of the SIR, the display may be displayed with a slow blink, and after the detection of the SIR, the display may be displayed with a fast blink. This allows the user to be notified of the progress of the service in detail. In addition, since a different display is made according to the presence or absence of the SIR reception after the service registration, for example, before the SIR reception, use of the telephone line is refrained. The user can take appropriate action according to the service status, such as re-transmitting the call.

Thereafter, in the state display processing of FIG. 9, it is checked whether or not the user has ended the call by on-hook operation or the like (step 145). If the call has been ended (step 145: YES), the analog signal captured in step 140 The telephone line L is released (step 146), and a series of processing ends. On the other hand, if the call has not been terminated (step 14
5: NO), and perform a manual transmission process described later (step 1).
47), and a series of processing ends.

Next, the manual transmission process will be described with reference to FIG. FIG. 10 is a flowchart showing the manual transmission process. First, the control circuit 1 controls the dial circuit 4 in accordance with the operation of the dial key 9 by the user, and sends the dialing destination to the analog telephone line L captured by the status display processing of FIG. (Step 151), and the process proceeds to a calling loop.

The calling loop includes steps 152 and 16
1 is comprised. In the calling loop, if a response from the other party is detected via the reverse detection circuit 13, the call is terminated (step 153: YE).
S), the analog telephone line L is released (step 15).
4). Then, it is determined whether or not the transmitted dial matches the dial stored in the idle waiting dial area of the memory 11, that is, the called party whose service is registered (step 155). Here, if they match (step 155: YES), it is determined that the telephone call to the call destination registered with the service has been completed and it is not necessary to redial the call, and a service release process described later is performed (step 156). A series of processing ends.

If they do not match (step 155:
NO), it is checked whether the transmitted dial is the dial "159P3" for instructing the network side to redial (step 157), and if they match (step 157: YE)
S), the above-described setting release processing of FIG. 8 is performed (step 1).
58), and a series of processing ends. On the other hand, step 157
In step 157, if they do not match (step 157: N
O) It is checked whether the transmitted dial is a dial "159P9" for instructing the network side to cancel the service registration (step 159), and according to the coincidence (step 1).
59: YES), the process proceeds to step 158, and in response to the mismatch (step 159: NO), a series of processing ends.

In the calling loop, if the calling is interrupted by the user on-hook operation or the like (step 161: YES), the analog telephone line L is released (step 162), and a series of processing ends. . As described above, even when a call is made to a call destination registered with the service by a user's operation, this is detected and the SIR incoming response state is cleared, so that the service progress state is automatically set. It is updated and the progress can be managed accurately.

Next, the service release processing will be described with reference to FIG. FIG. 11 is a flowchart showing the service release processing. First, the control circuit 1 refers to the memory 11 to check whether the service progress state of the analog telephone line L released in the manual transmission process is SIR incoming (step 170). Here, if the service progress status is SIR incoming (step 170: YES), the service progress status is cleared (step 171). Then, the above-described setting release processing of FIG. 8 is performed (step 172), and a series of processing ends.

If the service progress status does not indicate that there is an incoming SIR (step 170: NO), the loop closing circuit 3 is controlled to capture the analog telephone line L opened in the above-described manual calling process. (Step 173) The dial “15” for controlling the dial circuit 4 and instructing the analog line L to cancel the caller's end call notification service.
9P9 "is transmitted (step 174). In response to this, the network cancels the call termination notification service registered on the analog telephone line L first, and terminates the monitoring of the call termination. On the other hand, the control circuit 1 controls the loop closing circuit 3 to open the analog telephone line L (step 175), and proceeds to step 172. As a result, when there is an SIR call, that state is cleared, and only when there is no SIR call, a service release is instructed to the network side.

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.

[0059]

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. A telephone connected to a telephone line that provides a service that notifies the end of the call destination by a special incoming call to the caller from the network side by registering the call end notification on the network side A management means for managing a progress state of a call termination communication service registered using a telephone line, and a visual indication indicating a progress state managed by the management means in response to an operation of selecting a telephone line. Display means for performing display is provided so as to display the progress of the selected telephone line. Further, in a telephone device connected to a plurality of telephone lines, the managing means manages the progress of the outgoing call termination notification service registered using each telephone line for each telephone line, and the display means According to the operation of selecting the telephone line, a visual display indicating the progress state of the telephone line managed by the management means is performed.

As a result, as in the conventional case, S
Compared to the case where only a ring tone is transmitted in response to an IR call, you can easily check whether the caller's call termination notification service is registered on the telephone line you use, and send the caller's If the call termination notification service is registered, the call termination of the call destination by the SIR call is notified thereafter, so that it is possible to take measures such as refraining from using the telephone line, and to take measures such as ending the call destination already registered. The talk notification service can be used effectively.

[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 illustrating a service management process.

FIG. 6 is a flowchart showing a telephone number registration process.

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

FIG. 8 is a flowchart showing a setting release process.

FIG. 9 is a flowchart showing a status display process.

FIG. 10 is a flowchart showing a manual transmission process.

FIG. 11 is a flowchart showing a service cancellation process.

FIG. 12 is a sequence diagram showing a processing operation of a call destination end-of-call notification service.

FIG. 13 is a signal waveform diagram showing an incoming signal at the time of notification of a call end of a call destination.

FIG. 14 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.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takayuki Inage 2-3-2 Shimomeguro, Meguro-ku, Tokyo F-term in Tamura Electric Works, Ltd. (reference) 5K027 AA03 AA10 BB01 FF01 FF22 GG08

Claims (2)

[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 incoming call from the network side to the call source by registering, wherein the telephone line Management means for managing the progress status of the caller's end-of-call notification service registered using: and display means for performing a visual display indicating the progress status managed by the management means in response to an operation of selecting the telephone line. And a telephone device. 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. By registering, a telephone device connected to a plurality of telephone lines provided with a service of notifying the end of the call destination by a call from the network side to the caller by a special incoming call, Management means for managing, for each telephone line, the progress of the call termination / end-of-call notification service registered using the telephone line; and the management means being managed by the management means in response to an operation of selecting one of the telephone lines. Display means for providing a visual indication of the progress of the telephone line.