JP2000286928A - Telephone system and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cancel an incoming call form a third party without bothering a user when it is received the line is busy by detecting a caller number of the incoming call, referring to the detected caller number and a telephone number stored in a memory and executing camp-on processing and switching to the opposite party while the current call is held in camp-on busy. SOLUTION: When a caller number is received during a call, a comparison part 202 compares the caller number with an opposite party number registered in a black list 205, namely, a black list number. When they match, the result is informed to a communication control part 204 and a display control part 203. The communication control part 204 gives an instruction to execute camp-on processing to the incoming call from the opposite party to a camp-on processing part 111 and the camp-on processing part 111 executes camp-on processing to the telephone station. The display control part 203 receives the notice of the result that the number is on the black list number and displays the result that the incoming call is an interruption call and opposite party information corresponding to the caller number on a display part 106.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone apparatus having an information receiving function and a general telephone function and capable of receiving a busy information notification service by an information receiving function during a telephone call and a control method thereof. .

[0002]

2. Description of the Related Art Conventionally, there has been known a telephone device which receives a caller number of a third party from a telephone station by an information receiving function during a telephone call by a telephone function, and notifies the user of the caller number. In such a telephone device, usually, the user registers in advance the destination information including the caller number in the telephone device body. The telephone device is set so as to notify the user of destination information registered corresponding to the caller number based on the caller number received from the third party.

[0003] Further, in such a telephone device, a destination that the user does not want to respond to is registered in a blacklist, and when an incoming call is received from the destination, an incoming call from the destination registered in the blacklist is received. Is provided with a function of notifying the user that this is the case. By confirming this notification, the user can intentionally ignore the incoming call from this destination.

[0004]

However, in the conventional telephone device, the user can ignore the incoming call from the destination registered in the blacklist, but cancels the incoming call from the destination. It cannot be done. For this reason, when ignoring the incoming call, there is a problem that the incoming call must be ignored until the other party gives up.

[0005] Further, during the incoming call, an incoming call display sound indicating that there is an incoming call is continuously transmitted until the user responds to the incoming call or gives up the other party. For this reason, there is a problem that the incoming call display sound interferes with the call.

The present invention has been made in view of the above circumstances, and when an incoming call is received from a third party during a call, the incoming call can be canceled without bothering the user and the incoming call sound is displayed. An object of the present invention is to provide a telephone device capable of making a telephone call without any trouble and a control method thereof.

[0007]

According to the present invention, a caller number for an incoming call during a call is detected, and the call is muted by referring to the detected caller number and a telephone number stored in a memory. Perform catch processing as is and switch the other party.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A telephone device according to a first aspect of the present invention includes a detecting means for detecting a caller number for an incoming call during a call, a catch processing means for performing a catching process for switching a call partner, and a telephone. A configuration is provided which comprises: a memory for storing a number; and control means for performing the catch process while the call is muted with reference to the caller number and the telephone number.

According to this configuration, the caller number detected during the call and the telephone number stored in the memory are referred to,
The control means performs a catch process while the call is in a mute state. For this reason, by storing the desired telephone number in the memory, it is possible to perform a catching process without entering a call state for an incoming call during a call from the other party desired by the user.

In a telephone apparatus according to a second aspect of the present invention, in the first aspect, the memory includes a table for registering a telephone number of a destination to which an incoming call is rejected, and the control means matches the table with the table. When the detected other party's telephone number is detected, the catch process is performed while the call is muted.

According to this configuration, when the other party's telephone number detected by the detector is matched with the other party's telephone number registered in the table, the controller performs the catching process while the call is muted. Therefore, by registering a desired destination telephone number in the table, it is possible to perform a catch process for an incoming call during a call from the destination without entering a call state.

[0012] In a telephone apparatus according to a third aspect of the present invention, in the first or second aspect, the catch processing means may include:
Between a first catching process for sending an off-hook signal for switching a line to a called party who has received a call and a second catching process for sending an on-hook signal for switching a line to the called party who was initially in a talking state A configuration for holding a line for a predetermined time is adopted.

According to this configuration, the line is held for a predetermined time between the first catching process for sending an off-hook signal and the second catching process for sending an on-hook signal.
After holding the line for a predetermined period of time, the line is switched to the other party who was initially in a call state, so the telephone station recognizes that the other party of the line held for a predetermined period of time is on hold. As a result, the telephone station stops transmitting the incoming call display sound signal indicating that there is an incoming call from the other party, thereby preventing the incoming call display sound from interfering with the call.

In the telephone device according to a fourth aspect of the present invention, in the second or third aspect, when the catch processing means performs the catch process, the catch device performs the catch process for the destination registered in the table. A configuration is provided that includes a notifying means for notifying that the user is present.

According to this configuration, when the catch processing means performs the catch processing, the notifying means notifies the user that the catch processing is being performed on the destination registered in the table. As a result, the user recognizes that the telephone device is in the catching process. Therefore, it is possible to prevent the user from erroneously operating the telephone device while performing the catch process.

According to a fifth aspect of the present invention, in the telephone apparatus according to the second to fourth aspects, the control means may be arranged such that when the call state from the other party receiving the call during the call is in a hold state, When the other party detects that the line has been disconnected, the line with the other party in the hold state is disconnected.

According to this configuration, when it is detected that the other party has disconnected the line while the call from the other party receiving the call during the call is in the hold state, the control means sets the hold on hold. Disconnect the line with the other party. For this reason, it is possible to prevent a call from being put on hold with the other party on hold.

A telephone apparatus according to a sixth aspect of the present invention, in the first aspect, adopts a configuration in which the memory includes a table for registering a destination telephone number to which a call is permitted.

According to this configuration, only the other party's telephone number registered in the table is permitted to receive a call during a call. Therefore, by registering a desired destination telephone number in the table, it is possible to place the telephone into a call state only for an incoming call during a call from that destination, while receiving an incoming call from a destination not registered in the table. On the other hand, a catch process can be performed without entering a call state.

[0020] The telephone apparatus according to a seventh aspect of the present invention, in the first aspect, adopts a configuration provided with a function of setting a telephone call number registered in the memory to reject incoming calls.

According to this configuration, if the caller number detected by the detecting means is a telephone number for which rejection has been set in the memory, the caller does not enter a call state for an incoming call from the other party. , Catching process can be performed.

A method for controlling a telephone device according to an eighth aspect of the present invention includes the steps of:
The incoming call destination telephone number is detected, the call destination is referred to and the telephone number stored in the memory, and the catch process is performed while the call is muted.

According to this method, the catching process is performed while the call is muted by referring to the other party's telephone number detected during the call and the telephone number stored in the memory. For this reason, by storing the desired telephone number in the memory, it is possible to perform a catching process without entering a call state for an incoming call during a call from the other party desired by the user.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a telephone device according to one embodiment of the present invention. In FIG. 1, C
The PU 101 controls the entire telephone device according to the program. The CPU 101 is connected to a ROM via a bus 102.
103 and a RAM 104 are connected so as to be accessible. The ROM 103 stores various programs necessary for controlling the telephone device. RAM 104
Is used as a work area of the program.

The telephone device according to the present embodiment includes an operation unit 105, a display unit 106, a voice processing unit 107, a communication unit 108, a modem 109, a network control unit (NCU) 110,
A catch processing unit 111, a timer 112, and the like are provided. These components operate under the control of the CPU 101.

The operation section 105 is a section for inputting an operation of the telephone apparatus or inputting information on the other party. The display unit 106 is for displaying the received caller number, other messages, and the like, and is configured by, for example, an LCD.

The voice processing unit 107 sets the voice on the receiving side or the transmitting side of the communication unit 108 to a mute state,
Release the mute state. The communication unit 108 is a part where the user normally talks with the other party to which the line is connected.

The modem 109 is connected to the NCU 110, and receives, for example, a modem signal (hereinafter, referred to as a "caller number") which is a caller number transmitted from a telephone station in a modem procedure. Then, the received caller number is stored in the CPU 10.
Transfer to 1.

At the time of transmission, NCU 110 sends a calling signal to the telephone office to establish a calling line with the other party,
At the time of reception, the CPU 1 detects a call signal and informs the
Notify 01. The NCU 110 includes the incoming signal detection unit 11
3. It has a polarity reversal detection unit 114 and a line switching unit 115.

The incoming signal detecting section 113 detects an incoming signal such as an incoming display sound signal, an information receiving terminal start-up sound signal (hereinafter referred to as "CAT"), a caller number, etc., transmitted from the telephone station. If these signals are detected, the
Notify U101. When the incoming signal detection unit 113 detects the caller number, it notifies the CPU 101 of the fact and transfers the detected caller number to the CPU 101.

The polarity reversal detecting unit 114 detects the reversal of the polarity of the telephone line performed by the central office. When the polarity reversal of the telephone line is detected, the polarity reversal detecting unit 114 notifies the CPU of the reversal.
Notify 101. The line switching unit 115 controls the connection between the telephone line and the telephone device. The line switching unit 115
The telephone line is closed or released according to the control of the CPU 101.

The catch processor 111 performs a catch process. Specifically, catch processing section 111 sends an on-hook signal and an off-hook signal to the telephone office. The timer 112 is used when the telephone device performs control based on time.

Next, C for controlling such components is described.
The functions of the PU 101 will be described with reference to FIG. FIG. 2 is a functional block showing main functions of the CPU 101.

As shown in FIG. 2, the CPU 101 includes a sound processing control unit 201, a comparison unit 202, a display control unit 203,
It has a communication control unit 204 and the like.

When the voice processing control unit 201 receives a notification that the CAT has been detected from the incoming signal detection unit 113, the voice processing unit 107 sets the voice on the receiving side of the communication unit 108 to the mute state. To do so. When the voice processing control unit 201 receives a notification from the polarity reversal detecting unit 114 indicating that the polarity reversal of the telephone line has been detected, the voice processing control unit 201 mutes the voice on the receiving side of the communication unit 108 to the voice processing unit 107. Instruct to set to state. In addition, after a predetermined process or a predetermined time has elapsed, the voice processing control unit 201 releases the mute state set to the voice on the receiving side of the communication unit 108.

When the comparison unit 202 receives the caller number, the comparison unit 202
A determination of 5 is made. That is, a comparison is made as to whether the received caller number matches the destination number registered in the blacklist 205. Here, the black list 205 is a list in which the user can register an arbitrary destination number. Normally, the destination number that the user does not want to respond to when the user receives a call is registered in the black list 205.

Received Caller ID and Blacklist 2
If the destination numbers registered in 05 match, the comparison unit 2
02 notifies the communication control unit 204 and the display control unit 203 of that effect. On the other hand, when the received caller number does not match the destination number registered in the blacklist 205, the comparing unit 202 notifies the display control unit 203 of the fact.

When the communication control unit 204 receives a notification from the comparison unit 202 that the caller number matches the destination number registered in the black list 205, the catch processing unit 1
11 is instructed to perform catch processing for an incoming call from the other party. Further, when receiving a notification from the polarity reversal detecting unit 114 that the polarity reversal has been detected, the communication control unit 204 instructs the line switching unit 115 to release the connected line. Further, the communication control unit 204 controls settings of the timer 112 or the modem 109 in the telephone device.

When the display control unit 203 receives a notification from the comparing unit 202 that the caller number matches the destination number registered in the blacklist 205, the display unit 106 displays the destination number registered in the blacklist 205. The user is instructed to display that the call has been received from the other party and the destination information corresponding to the caller number. On the other hand, if the comparison unit 202 receives a notification that the caller number does not match the callee number registered in the blacklist 205, the display unit 106 displays the callee information corresponding to the caller number or the caller number. Is displayed.

Next, the operation of the telephone device having the above configuration will be described with reference to FIGS. FIG. 3 is a sequence diagram when an incoming call is received from a destination (hereinafter, referred to as an “interrupt destination”) registered in blacklist 205 during a telephone call with the present telephone device. FIG. 4 is an operation flowchart of the telephone device when an incoming call is received from an interruption destination or another destination during a telephone call with the telephone device.

As shown in FIG. 3, when an interrupt destination calls during a call, the central office sends an incoming call indicating sound signal to the telephone apparatus. This incoming call display sound signal is a signal that informs the user that there is incoming call information that can be displayed. In this case, the incoming call display sound signal not only notifies that the caller number of the interrupt destination can be displayed, but also notifies that there is an incoming call from the interrupt destination.

After a lapse of a predetermined time from the transmission of the incoming call display sound signal, the telephone station transmits a CAT to the telephone apparatus. This CAT is a DTMF signal notifying that the caller number of the interruption destination is transmitted. The telephone office calls this C
The AT is sent to the telephone apparatus, and the line of the other party during the call is temporarily interrupted. This is to make the sound of the caller's number inaudible to the other party during the call.

As shown in FIG. 4, when the telephone apparatus is in a talking state, the incoming signal detecting section 113 transmits
It monitors whether T has been received (ST401). At this time, when the CAT is received from the telephone station, the communication control unit 2
04 sets the timer 112 to 1.5 seconds (ST
402). This 1.5 second indicates a time limit until the caller ID is received.

Next, the voice processing control section 201 instructs the voice processing section 107 to set the voice on the receiving side of the communication section 108 to a mute state. In accordance with this instruction, voice processing section 107 sets the voice on the receiving side of call section 108 to a mute state (ST403). This allows
The voice cannot be heard by the user from the receiving side of the call unit 108.

After a lapse of a predetermined time from the transmission of the CAT, a telephone number is transmitted from the telephone station. Communication control unit 204
Sets the modem 109 for receiving the caller number to receive the caller number (ST404). Thereby, the modem 109 receives the caller number.

Next, communication control section 204 determines whether or not the caller ID has been normally received (ST405). If the caller ID is not normally received, the communication control unit 204
Confirms the count of the timer 112 set in ST402 (ST406). Here, if 1.5 seconds have elapsed without receiving the caller number, the voice processing control unit 201 releases the mute state set to the voice on the receiving side of the call unit 108 by the voice processing unit 107. To do so. In accordance with this instruction, voice processing section 107 cancels the mute state set for the voice on the receiving side of call section 108 (ST407).

At the telephone station, when a predetermined time elapses after the interruption of the call with the called party, the telephone station reconnects to the called party. Thus, the user resumes talking with the other party who was talking.

When the caller number is received normally, the comparing section 202 determines whether or not the caller number matches a destination number registered in the blacklist 205 (hereinafter, referred to as “blacklist number”). A comparison is made (ST408).

If the received caller number is not a blacklist number, the comparing section 202 informs the voice processing section 2 of the fact.
01, it notifies the display control unit 203. Upon receiving this notification, the voice processing control unit 201 instructs the voice processing unit 107 to release the mute state set to the voice on the receiving side of the communication unit 108. In accordance with this instruction, voice processing section 107 cancels the mute state set for the voice on the receiving side of call section 108 (ST409).

Upon receiving notification that the received caller number does not match the blacklist number, the display control unit 203
Instructs display unit 106 to display the destination information or the caller number corresponding to the caller number. In accordance with this instruction, display section 106 displays the destination information or the caller number (ST410).

At the telephone station, after a predetermined period of time elapses from the interruption of the call with the called party, the telephone station reconnects to the called party. Thus, the user resumes talking with the other party who was talking. At this time, during the resumed call, an incoming call sound signal indicating that there is an incoming call is transmitted from the telephone station until the caller stops calling.

On the other hand, if the received caller number is a blacklist number, the comparing section 202 notifies the voice processing control section 201, the communication control section 204, and the display control section 203 of the fact.
Notify. Upon receiving this notification, the voice processing control unit 201
Instructs the voice processing unit 107 to notify the user by a voice signal that an incoming call from the interrupt destination is being processed in order to prevent a user's erroneous operation described later. In accordance with this instruction, voice processing section 107 notifies the user to that effect (ST411). As a means for notifying, in addition to the audio signal, it may be displayed on the display unit 106 to notify the user.

Here, an erroneous operation of the user when receiving an incoming call from the interrupt destination will be described. In the case of performing a catching process upon receiving an incoming call from an interrupt destination, the present telephone device requires about 1 second to receive the caller number of the interrupt destination and about 2 seconds to perform the catching process. It costs. Therefore, there is a possibility that the sound on the receiving side of the communication unit 108 is muted for a maximum of about 3 seconds. If the mute state continues for about 3 seconds during a call, the user may misunderstand that the telephone device has failed or the line is abnormal, and perform an erroneous operation such as releasing the line. For this reason, this telephone device
When it is determined that the blacklist number has been received, the user is first notified of the fact. Thereby, the user recognizes that the telephone device is responding to the incoming call at the interrupt destination. As a result, it is possible to prevent the user from erroneously operating the telephone device.

Next, upon receiving notification that the received caller number is a blacklist number, the communication control unit 204
Instructs the catch processing unit 111 to perform catch processing for an incoming call from the other party. In accordance with this instruction, the catch processing unit 111 performs a catch process on the telephone office.

More specifically, first, the catch processing unit 1
11 transmits an off-hook signal as a first catch process to the telephone station (ST412). Upon receiving this off-hook signal, the central office connects the telephone line to the interrupt destination. As a result, the user enters a call state with the interrupt destination, as shown in FIG. However, the voice on the receiving side of call section 108 is set to a mute state in ST403, so that the call at the interrupt destination is not heard by the user.

Catch processing section 111 holds the line with the interrupt destination in the talking state for a predetermined time (ST413).
Here, the predetermined time is a time until the telephone station can determine the on-hook signal as the second catch process transmitted by the catch processing unit 111.

After holding the line with the interrupt destination for a predetermined time,
Catch processing section 111 sends an on-hook signal as a second catch processing to the telephone station (ST41).
4). Upon receiving this on-hook signal, the central office reconnects the telephone line to the other party who was talking. As a result, the user is in a call state again with the other party on the call. At this time, the interrupt destination is on hold. That is, the interrupt destination is held in a state where it is connected but cannot talk to the user.

As described above, by once connecting the telephone line to the interrupt destination and then reconnecting to the other party who was talking, the telephone station recognizes that the interrupt destination is on hold. For this reason, the telephone station does not transmit the incoming call display sound signal indicating that there is an incoming call from the interrupt destination to the user. As a result, it is possible to prevent the incoming call display sound from interfering with the call.

When the catch processing section 111 completes the catch processing for the telephone station, the voice processing control section 201 instructs the voice processing section 107 to release the mute state set to the voice on the receiving side of the communication section 108. To instruct. In accordance with this instruction, the voice processing unit 107
Then, the mute state set to the voice of the receiving side of No. 8 is released (ST409).

Next, upon receiving a notification that the received caller number is a blacklist number, the display control section 203
Instructs the display unit 106 to display that the call is from the interrupt destination and display the destination information corresponding to the caller number. According to this instruction, the display unit 106
The fact that there is an incoming call from the interrupt destination and the destination information corresponding to the caller number are displayed (ST410). As a result, the user can recognize which interrupt destination has received the incoming call.

As described above, in the present telephone device, when an incoming call is received from an interrupt destination during a call, the sound of the receiving side of the call unit 108 is set to a mute state, and the telephone line is once interrupted in that state. Connect first. After a lapse of a predetermined time, the telephone line is reconnected to the called party. As a result, the interrupt destination is put on hold. Therefore, the interrupt destination is held in a state where it is connected but cannot talk to the user. At this time, if the called party releases the line earlier than the interrupt destination, the central office automatically connects the telephone line to the interrupted destination in the hold state.

For this reason, the present telephone device is used in FIG. 5 and FIG.
Operation control is performed as shown in FIG. FIG. 5 is a sequence diagram in the case where the other party who was talking while the interrupt destination was on hold released the line first. FIG. 6 is an operation flow diagram of the telephone device when the other party who is talking while holding the incoming call of the interrupt destination releases the line first. In FIG. 5, the operation from receiving an incoming call from the interruption destination during a call until the incoming call is put on hold is the same as that in FIG.

As shown in FIG. 5, when the telephone line to which the called party is connected is released, the telephone station inverts the polarity of the telephone line. The telephone apparatus detects the reversal of the polarity of the central office and performs processing based on the reversal of the polarity to prevent the telephone station from being in a communication state with the interrupt destination.

That is, the telephone apparatus performs a catching process for the interrupt destination and, when the interrupt destination is put on hold, the polarity reversal detecting unit 114 monitors whether the polarity of the telephone line is reversed (ST601). ). Here, when the polarity inversion of the telephone line is detected, the polarity inversion detecting unit 114 notifies the voice processing control unit 201 and the communication control unit 204 of the detection. Upon receiving this notification, the voice processing control unit 201 instructs the voice processing unit 107 to set the voice on the receiving side of the communication unit 108 to a mute state. In accordance with this instruction, voice processing section 107 sets the voice on the receiving side of call section 108 to a mute state (ST602). As a result, it is possible to prevent a state in which a call is made with the interrupt destination.

Next, upon receiving the notification that the inversion of the telephone line polarity has been detected, the communication control unit 204 causes the line opening / closing unit 115
Is instructed to release the line connected to the interrupt destination. In accordance with this instruction, line opening / closing section 115 releases the telephone line connected to the interrupt destination (ST603). As a result, the incoming call at the interrupt destination is disconnected.

When the incoming call at the interrupt destination is disconnected, the voice processing control unit 201 instructs the voice processing unit 107 to call the communication unit 10.
The instruction to cancel the mute state set to the voice of the receiving side of No. 8 is issued. According to this instruction, the voice processing unit 10
No. 7 releases the mute state set to the voice on the receiving side of the communication unit 108 (ST604). When the mute state of the voice on the receiving side is released, a carry signal or a busy signal is heard from the receiving side of the communication unit 108. Thereby, the user can recognize that the incoming call from the interrupt destination has been disconnected. In addition, it is possible to prevent the telephone device from being mistaken for a failure of the telephone device or an abnormality of the line.

As described above, according to the telephone apparatus of the present embodiment, when an incoming call is received from an interrupt destination during a call, the communication unit 1
After the voice of the receiving side 08 is set to the mute state and the catch processing is performed, the caller is reconnected to the other party who was talking.
For this reason, the incoming call can be substantially canceled without being in a call state with the interrupt destination. Further, when performing the catching process, the telephone device temporarily enters a communication state with the interrupt destination. Thus, after the catch process is performed, the interrupt destination is in a suspended state. For this reason, when the caller is reconnected to the other party, the incoming call tone signal indicating that there is an incoming call from the interrupt destination is not transmitted from the telephone station. As a result, it is possible to prevent the incoming call display sound from interfering with the call.

According to the telephone device of the present embodiment,
When an incoming call is received from an interrupt destination, a catch process is performed after notifying the user of the fact. With this, even when a mute time of up to about 3 seconds occurs, which can be used from the reception of the caller ID to the catch processing, the user can still use the mute time.
It is possible to recognize that an incoming call of the interrupt destination is being handled. Therefore, it is possible to prevent the user from mistaking the mute state as a failure or the like and performing an erroneous operation.

According to the telephone device of the present embodiment,
If an incoming call from the interrupting party is put on hold during a call, and the other party who is reconnected during that hold releases the line first, the polarity reversal of the telephone line is detected and the voice on the receiving side of the calling unit 108 is turned on. Set to mute state. Then, the incoming call of the interrupt destination is disconnected in the muted state. For this reason, the incoming call can be canceled without entering a call state with the interrupt destination.

In the present embodiment, when the caller number of the other party who receives an incoming call during a call matches the other party number registered in blacklist 205, the telephone which cancels the incoming call without setting the call state is set. The device has been described. However, the present invention is not limited to the case where the caller number of the other party receiving the incoming call matches the other party number registered in the blacklist. That is, an address list in which the destination number can be registered may be provided in the memory on the RAM 104, it may be determined whether or not the address is registered in the address list, and the incoming call may be canceled. In the case where the address list is changed in this way, it is possible to prevent a state in which the other party not registered in the address list is in a call state.

Further, information for identifying whether or not a destination is a blacklist number is added to each destination number registered in the above address list, and the presence / absence of the information is determined. It may be changed to cancel the incoming call from. Even with this change,
The same effect as in the present embodiment can be obtained.

In the present embodiment, whether or not to cancel the incoming call is determined based on the caller number of the interrupt destination detected during the call. However, the information is not limited to the caller number of the interrupt destination, and may be changed to any information as long as the information can be detected from the incoming call of the interrupt destination during a call. Even in such a case, the same effect as that of the present embodiment can be obtained.

[0074]

As described above, according to the present invention,
When a call is received from a third party during a call, the receiver's voice of the calling unit is set to mute state and the catch process is performed by referring to the destination information registered in the device main unit. It is possible to provide a telephone device capable of canceling an incoming call without bothering the user and enabling a telephone call without hindrance by an incoming call display sound, and a control method thereof.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a telephone device according to an embodiment of the present invention.

FIG. 2 is a functional block diagram showing main functions of a CPU of the telephone device according to the embodiment.

FIG. 3 is a sequence diagram when an incoming call is received from a destination registered in a blacklist during a call using the telephone device according to the embodiment;

FIG. 4 is a flowchart for explaining the operation of the telephone device according to the embodiment;

FIG. 5 is a sequence diagram in a case where the other party who has been talking while holding the incoming call of the other party registered in the blacklist on the telephone apparatus according to the embodiment releases the line;

FIG. 6 is a flowchart for explaining the operation of the telephone device according to the embodiment.

[Explanation of symbols]

 101 CPU 103 ROM 104 RAM 107 Voice processing unit 108 Talk unit 110 NCU 111 Catch processing unit 113 Incoming signal detection unit 114 Polarity reversal detection unit 115 Line switching unit 201 Voice processing control unit 202 Comparison unit 203 Display control unit 204 Communication control unit 205 blacklist

Claims (8)

[Claims] 1. A detecting means for detecting a caller number for an incoming call during a call, a catch processing means for performing a catch process for switching a call partner, a memory for storing a telephone number, the caller number and the telephone number Control means for performing the catch process while the call is in a mute state with reference to the above. 2. The memory has a table for registering a telephone number of a callee whose call is rejected, and the control means keeps the call in a muted state when detecting a callee telephone number matching the table. The telephone device according to claim 1, wherein the catch process is performed. 3. The catch processing means includes: a first catch process for transmitting an off-hook signal for switching a line to a called party during a call; and an on-hook signal for switching a line to the called party in the first call state. 3. The telephone device according to claim 1, wherein a line is held for a predetermined time between the transmission and the second catch process. 4. The system according to claim 2, further comprising a notifying unit for notifying that a catching process is being performed on the other party registered in the table when the catching process unit performs the catching process. Item 3. The telephone device according to item 3. 5. The control means detects a disconnection of the line when the call state from the other party receiving a call during the call is in a hold state, and determines whether or not the other party is in a hold state. The telephone device according to any one of claims 2 to 4, wherein the line is disconnected. 6. The telephone device according to claim 1, wherein the memory includes a table for registering a telephone number of a destination to which an incoming call is permitted. 7. The telephone device according to claim 1, wherein the memory is provided with a function of setting a non-permission of an incoming call for a registered telephone number. 8. A call is set to a mute state by an incoming call, the called party's telephone number is detected, and the called party's telephone number and a telephone number stored in a memory are referenced to mute the call. A method for controlling a telephone device, wherein a catch process is performed while keeping the state.