JP2016144165A - Telephone control device with event adaptive power saving function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of reducing power consumption to the utmost limit by stopping power sully at all the time excepting for a time in which an extension telephone is being used, in a telephone control device in which a plurality of extension telephones are accommodated.SOLUTION: When a telephone call is incoming to the telephone control device itself, a power supply control part discriminates whether an origination source telephone number of the incoming call is matched with any one of telephone sets which are registered in a power supply starting extension telephone number registration part. If matched, based on power supply starting time setting and power supply ending time setting, it is discriminated whether to start power supply to an extension telephone corresponding to the telephone number. If a call origination instruction command is received from a control terminal 4, after power supply to an extension telephone of a call origination target designated by the received call origination instruction command is started, the power supply control part executes processing of call origination to a telephone number that is designated by the call origination instruction command. If it is detected that the extension telephone becomes unused, power supply to the extension telephone is stopped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a telephone control apparatus that accommodates a plurality of extension telephones, and relates to a technique for reducing power consumption by stopping power supply to an extension telephone.

  As a prior art, Patent Document 1 discloses a key telephone system that reduces power consumption by stopping power supply to an extension telephone when the office is unattended at night or on holidays. The same document also states that low power consumption is achieved by stopping power supply to the extension telephone when any means such as a human sensor or a light sensor is used to detect whether the user is away. A technique for achieving the above is disclosed.

  Patent Document 2 discloses a technique in which power supply to an IP telephone is constantly stopped, but power supply is started and switched to a normal operation by switching the IP telephone to an on-hook state or an off-hook state by a user operation. During normal operation, when it is detected that a period of no user operation has exceeded a predetermined set time, power supply is stopped to switch to the power saving mode. Specifically, power consumption is reduced by stopping power supply to the IP telephone when there is no operation for a certain period of time.

  However, in the key telephone system described in Patent Document 1, when the user is present, power is continuously supplied to the extension telephone regardless of whether or not the user is using the extension telephone. Therefore, during the time when the user is present but the extension telephone is not used, the power supply to the extension telephone is continued as usual, and there is a problem that the effect of reducing power consumption must be reduced.

  Furthermore, in the IP telephone set described in Patent Document 2, normal operation and power saving operation are switched by detecting an on-hook or off-hook operation using a built-in battery. Although power consumption is reduced by using a built-in battery, it is necessary to incorporate a battery in all of the many extension telephones, and there is a problem that an increase in cost is inevitable.

JP 2009-218880 A JP 2007-173923 A

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a telephone control apparatus that accommodates a plurality of extension telephones without incorporating a special battery in the extension telephone and when not in use. It is to provide a technology capable of reducing power consumption to the limit by always stopping power feeding.

In order to solve the above problems, the present invention provides:
A telephone control device that accommodates a plurality of extension telephones and supplies operating power to the extension telephones,
When the predetermined telephone number and the telephone number coincide with the caller telephone number of the incoming call that has arrived at its own device, the extension telephone that starts power supply and the incoming call that has arrived at its own apparatus, Phone number registration means for registering in association with a time zone for permitting the start of power supply and a transfer destination number for transferring an incoming call that has arrived at the own device outside the time zone for permitting the start of power supply, and an incoming call that has arrived at the own device Power supply control means for determining whether or not the source telephone number of the telephone number coincides with any of the telephone numbers registered in the telephone number registration means,
When the incoming call arrives at the own device, the power supply control means determines whether the incoming caller telephone number matches any of the telephone numbers registered in the telephone number registration means, and determines that they match , Start supplying power to the extension telephone corresponding to the telephone number,
The power supply control unit stops power supply to the extension telephone when detecting that the extension telephone is not used.

  According to the present invention, when there is an external line incoming event from a caller telephone number that a user registered in advance in the telephone control apparatus desires to make a call, power supply to a predetermined extension telephone corresponding to the user is started. When an incoming call rings and a user performs a response operation to make a call and detects that the extension telephone is not used, power supply to the extension telephone is stopped. Further, when the time when the external line is received from the caller telephone number that the user desires to call is other than the time when the start of power supply is permitted, the external line is transferred to a predetermined transfer destination number. Therefore, even when the user is present, the power supply to the extension telephone is stopped, and when the user receives an outside line from the caller telephone number that the user desires to call and when the user is present, that is, when using the extension telephone. This is an event-friendly power saving function that starts power supply to an extension telephone only. For this reason, power consumption can be suppressed to the limit.

In the embodiment of the present invention, the extension telephone whose power supply is stopped can start or stop the power supply of the designated extension telephone by using the extension telephone supplied with power from the telephone control apparatus or by notification from the telephone control apparatus. A form using a power supply hub having a function or a form using an extension telephone having a function capable of starting or stopping power supply from an external power supply such as an adapter by notification from the telephone control device may be used.

  Also, in the present invention, when a user makes a call to a destination that he / she wants to call, a call instruction command is transmitted to the telephone control device using a control terminal such as a PC (Personal Computer) used by the user. The telephone control device analyzes the received call instruction command event and starts supplying power to the extension telephone specified by the call instruction command. Then, the telephone control device automatically sets the destination telephone number specified by the call instruction command. Outgoing. Then, when it is detected that the extension telephone has been used and has not been used, the power supply to the extension telephone is stopped. Therefore, even when the user is present, power supply to the extension telephone is stopped, and power supply to the extension telephone can be started only when the user makes an outside line call using the control terminal, that is, when the extension telephone is used. It is a power saving function that can handle events. For this reason, power consumption can be suppressed to the limit.

It is a schematic block diagram of the telephone control apparatus 1 which concerns on one Embodiment of this invention. It is the figure which represented typically the example of the registration content of the electric power feeding start extension telephone number registration part. It is a flowchart which shows operation | movement of one Embodiment of this invention. It is a sequence diagram for demonstrating the operation | movement which the telephone control apparatus 1 starts electric power feeding at the time of an external line incoming. FIG. 4 is a sequence diagram for explaining an operation in which the telephone control device 1 starts power supply in response to a call instruction command from the control terminal 4.

  Hereinafter, an embodiment of the present invention will be described.

FIG. 1 is a schematic functional configuration diagram of a telephone control device 1 according to an embodiment of the present invention.
As shown in the figure, the telephone control device 1 includes an external line interface unit 101, a caller telephone number extraction unit 102, a power supply control unit 103, a call control unit 104, a call control unit 105, and a power supply start extension telephone number registration. Unit 106, extension telephone interface unit 107, control terminal interface unit 108, and outgoing call command receiving unit 109. Also, the description of the communication path is omitted in the figure.

  The external line interface unit 101 is an interface for connecting to an external line network 5 such as PSTN, ISDN, IP telephone network or the like.

  Since the external line interface unit 101 detects the incoming call and notifies the incoming call when the telephone control device 1 receives an external line call, the caller telephone number extraction unit 102 calls the telephone of the caller of the external line incoming call. The number is extracted and notified to the power supply control unit 103.

  The power feeding control unit 103 determines whether the source telephone number received from the source telephone number extracting unit 102 matches any of the source telephone numbers registered in the power feeding start extension telephone number registration unit 106. judge. At this time, if the caller telephone number received from the caller telephone number extraction unit 102 matches any one of the caller telephone numbers registered in the power supply extension telephone number registration unit 106, The power supply start extension telephone number registration unit 106 reads the power supply start time setting 203 and the power supply end time setting 204 registered in correspondence with the caller telephone number, and is also registered in correspondence with the caller telephone number. It is determined whether or not to start power supply to the extension telephone 2 of the extension telephone number (the extension telephones 2-1 and 2-2 in FIG. 1 are collectively referred to as the extension telephone 2; the same applies hereinafter).

Specifically, the time from the power supply start time setting 203 to the time of the power supply end time setting 204 is calculated as the power supply permission time zone, and it is determined whether the current time is within the power supply permission time zone. When it is determined that it is within the power supply permission time zone, power supply to the extension telephone 2 is permitted.

  Further, the power supply control unit 103 starts power supply of the extension telephone 2 when it is determined that it is within the power supply permission time zone, and when it is determined that it is outside the power supply permission time zone, the power supply start extension telephone number registration unit. A transfer destination telephone number is acquired from the transfer destination number 205 corresponding to the caller telephone number 202 of 106, and the call control unit 105 is notified to transfer to the transfer destination number.

  Here, the power supply control unit 103 does not match the transmission source telephone number received from the transmission source telephone number extraction unit 102 with any of the transmission source telephone numbers registered in the power supply start extension telephone number registration unit 106. In this case, a predetermined extension telephone is determined in advance as a reception extension telephone, the reception extension telephone is registered in the power supply start extension telephone number registration section 106, and the call control unit is configured to call the reception extension telephone. You may make it notify to 105. FIG.

  In addition, the power supply control unit 103 matches the caller telephone number received from the caller telephone number extraction unit 102 with one of the caller telephone numbers registered in the power supply start extension telephone number registration unit 106. If the current time is outside the power supply permission time zone and the transfer destination number is not registered in the field 205 in the record 200 in which the matching source telephone number is registered, the reception extension telephone is You may make it notify to the call control part 105 so that it may call. For example, when there is a record in which the extension telephone number registered in the field 201 is set to 999, the extension telephone 2 corresponding to the extension telephone number is set as the reception extension telephone, and the power supply start extension telephone number registration unit 106 The reception extension telephone may be called when it does not match any registered caller telephone number or when the transfer destination number is not registered in the field 205 in the record 200.

  Further, when the user designates a destination telephone number desired to make a call using the control terminal 4 and inputs a call instruction command, the call instruction command receiving unit 109 sends the call instruction command through the control terminal interface unit 108. Receiving and notifying the power supply control unit 103. The transmission instruction command includes a “control terminal ID” for recognizing the control terminal, an “extension telephone number” for designating the extension telephone 2 to be transmitted, and a “destination telephone number” for requesting a call. Receiving the notification, the power supply control unit 103 instructs the call control unit 105 based on the transmission instruction command to start power supply to the extension telephone 2 specified by the transmission instruction command.

  Further, the power supply control unit 103 notifies the call control unit 105 of the call destination telephone number designated by the call instruction command, and the call control unit 105 makes a call to the call destination telephone number via the call control unit 104.

  Further, when there is an incoming line call and a call is made between the external line and the extension telephone 2, the call control unit 105 passes through the extension telephone interface unit 107 and the extension telephone 2 Is detected, the power supply control unit 103 is notified of the detection result, and the power supply control unit 103 stops the power supply of the extension telephone 2 via the extension telephone interface unit 107.

  Further, in a state where a call is being performed between the external line and the extension telephone 2 by the call instruction command, the call control unit 105 passes through the extension telephone interface unit 107 and ends the call of the extension telephone 2. Is detected, the power supply control unit 103 is notified of the detection result, and the power supply control unit 103 stops the power supply of the extension telephone 2 via the extension telephone interface unit 107.

  The call control unit 104 establishes a call connection with the external line network 5 via the external line interface unit 101.

  The call control unit 105 detects a response operation from the extension telephone 2 to the incoming call notification by the off-hook of the extension telephone 2, and performs call control in cooperation with the extension telephone 2.

Further, the call control unit 105 performs the incoming call transfer process according to the incoming call transfer destination number received from the power supply control unit 103.

  Further, the power supply control unit 103 analyzes the transmission instruction command received from the control terminal 4 via the transmission instruction command receiving unit 109, and the power supply control unit 103 notifies the call control unit 105 of the destination telephone number of the analysis result. . The call control unit 105 makes an outside line call via the call control unit 104 to the destination telephone number received from the power supply control unit 103.

  Further, the call control unit 105 notifies the extension telephone 2 that has started power feeding based on the caller telephone number of the incoming incoming call via the extension telephone interface unit 107.

  The power supply start extension telephone number registration unit 106 registers in advance one or a plurality of caller telephone numbers that the user desires to call for each user. When the external line interface unit 101 detects an incoming call from the external line network 5 and the caller telephone number extraction unit 102 notifies the power supply control unit 103 of the caller telephone number extracted from the external line call, the power supply control unit 103 starts power supply. The record 200 registered in the extension telephone number registration unit 106 is referred to obtain a record that matches the caller telephone number.

  FIG. 2 is a diagram schematically showing the registration contents of the power supply start extension telephone number registration unit 106. As shown in the figure, a record 200 is registered for each extension telephone number in the power supply start extension telephone number registration unit 106. The record 200 includes an extension telephone number 201 for starting power supply, a caller telephone number 202 for registering a caller telephone number for which a user call is desired, a power supply start time setting 203 for setting a time for starting power supply permission, It has a power supply end time setting 204 for setting a time for ending the permission, and a transfer destination number 205 for transferring an outside line when it is outside the power supply permission time zone.

  The extension telephone interface unit 107 is an interface for connecting to an extension telephone.

  The control terminal interface unit 108 is an interface for connecting to the control terminal 4 such as a PC (Personal Computer). For example, serial bus transmission such as LAN, wireless LAN, USB (Universal Serial Bus), or Bluetooth (registered trademark). ) Or the like is used.

  The transmission instruction command receiving unit 109 receives a transmission instruction command from the control terminal 4 via the control terminal interface unit 108 and notifies the power supply control unit 103 of the received transmission instruction command.

  FIG. 3 is a flowchart for explaining the operation up to the start of power feeding. This flowchart starts when the telephone control device 1 is turned on.

  First, the outside line interface unit 101 determines whether or not there is an outside line incoming call (S301).

  Then, the power supply control unit 103 refers to the power supply start extension telephone number registration unit 106 and registers the external telephone call source telephone number extracted by the transmission source telephone number extraction unit 102 in the field 202 in the record 200. It is verified whether it matches any one of the caller telephone numbers (S302).

As a result of the collation, when the caller telephone number of the incoming incoming call matches any one of the registered call numbers (S303), it is next determined whether or not the current time is within the power supply permission time zone (S304).

  Specifically, when the power supply control unit 103 determines that they match, the extension telephone number to start power supply is registered in the field 201 in the acquired record 200, and reads this. It is assumed that the same caller telephone number cannot be registered in the power supply start extension telephone number registration unit 106.

  For example, it is other than the power supply permission time period from the power supply start time setting registered in the field 203 of the record 200 read from the power supply start extension telephone number registration unit 106 to the power supply end time setting registered in the field 204. In this case, the transfer operation is performed to the transfer destination number registered in the field 205 without starting the power supply of the extension telephone 2. If the transfer destination number is not registered in the field 205, the call control unit 105 sends a non-response guidance to the external line 5 via the call control unit 104 or performs transfer processing (S310).

  If the time is not set in the power supply start time setting registered in the field 203 of the record 200 read from the power supply start extension telephone number registration unit 106 and the power supply end time setting registered in the field 204, the field The extension telephone 2 corresponding to the extension telephone number registered in 201 may be always supplied with power, and when the same time is set, a constant transfer operation may be performed.

  It should be noted that there is no record 200 in which the field 202 in the record 200 registered in the power supply extension telephone number registration unit 106 matches the source telephone number of the incoming incoming call extracted by the source telephone number extraction unit 102. Or when the power supply of the extension telephone 2 corresponding to the extension telephone number registered in the field 201 is started from the record 200 that matches the caller telephone number of the incoming incoming call, the user responds to the incoming incoming call by leaving the seat If not, the transfer operation is performed to the transfer destination number registered in the field 205. If there is no matching record 200 or the transfer destination number is not registered in the field 205, the call control unit 105 sends a non-response guidance to the external network 5 via the call control unit 104 (S310). .

  Next, when it is determined that the current time is within the power supply permission time zone, power supply to the extension telephone 2 corresponding to the extension telephone number in the field 201 registered in the record 200 read from the power supply start extension telephone number registration unit 106 is started. To do. Further, the incoming call is notified to the extension telephone 2 that has started power feeding and has been in normal operation (S305).

  When the call control unit 105 detects that the user has responded with the extension telephone 2 that has started power feeding by the off-hook of the extension telephone 2 (S306), the call control unit 104 makes a call with the external network 5 via the external line interface unit 101. Connect (S307) and make a call.

  The call control unit 105 detects that the user has finished the call by the on-hook of the extension telephone 2 and notifies the power supply control unit 103 (S308), and the power supply control unit 103 passes through the extension telephone interface unit 107. Is stopped (S309).

  Specifically, the power supply control unit 103 detects that the extension telephone 2 has finished the call via the extension telephone interface unit 107 by the on-hook of the extension telephone 2 and receives the detection information. As a result, the power supply of the extension telephone 2 is stopped through the extension telephone interface unit 107.

  Further, when the power supply control unit 103 receives a call instruction command from the control terminal 4 via the call instruction command receiving unit 109 (S311), the power supply of the extension telephone 2 specified by the call instruction command is supplied through the extension telephone interface unit 107. Start. Further, the call control unit 104 transmits to the external network 5 via the external line interface unit 101 (S312).

  When the call control unit 104 detects that there is a response from the external line network 5 via the external line interface unit 101 (S313), the call control unit 104 establishes a call connection between the external line network 5 and the extension telephone 2 (S314), Make a call.

  When the call control unit 105 detects that the user has finished the call and has finished talking by the on-hook of the extension telephone 2 via the extension telephone interface unit 107 (S315), the call control unit 105 notifies the power supply control unit 103 of the detection. The power supply control unit 103 stops the power supply of the extension telephone 2 via the extension telephone interface unit 107 (S316).

  The call control unit 105 detects that the extension telephone 2 has finished the call via the extension telephone interface unit 107 by the on-hook of the extension telephone 2, and the call control unit 105 notifies the power supply control unit 103 of the detection information. Until the power supply control unit 103 stops power supply to the extension telephone 2 via the extension telephone interface unit 107, the power supply time of the extension telephone 2 is extended by a predetermined time in order to confirm the call time and the call charge. Also good.

  FIG. 4 is a sequence diagram for explaining an operation of starting the power supply of the extension telephone 2 when the caller telephone number at the time of an incoming call from the telephone control device 1 is the caller telephone number that the user desires to call. It is. This sequence diagram is started when the outside line interface unit 101 detects an incoming line from the outside line network 5.

  First, when the telephone control apparatus 1 detects that there is an incoming call from the external line interface unit 101 (S401), the power supply control unit 103 instructs the power supply start extension telephone number registration unit 106 to send the caller by this external line incoming call. It is determined whether the caller telephone number extracted by the telephone number extraction unit 102 matches any of the caller telephone numbers registered in the field 202 in the record 200 registered in the power supply start extension telephone number registration unit 106. If there is a match, the record 200 in which the matched caller telephone number is registered is acquired from the power supply start extension number registration unit 106, and the extension telephone of the extension telephone number registered corresponding to the caller telephone number 2 is started (S402).

  Next, the call control unit 105 notifies the incoming call to the extension telephone 2 that has started power supply and has started normal operation via the extension telephone interface unit 107 (S403). The extension telephone 2 makes an outside line ringing (S404). When the call control unit 105 detects that the user has responded to the incoming call from the extension telephone 2 by the off-hook of the extension telephone 2 (S405), the call control unit 104 establishes a call connection with the external network 5 via the external line interface unit 101. (S406) The user of the extension telephone 2 can make an outside line call (S407).

  Then, when the call control unit 105 detects that the extension telephone 2 has finished the call via the extension telephone interface unit 107 by the on-hook of the extension telephone 2 (S408), the call control unit 104 transmits the external line via the external line interface unit 101. The disconnection of the call is notified to the network 5 (S409). The call control unit 105 notifies the power supply control unit 103 of the detection information, and the power supply control unit 103 stops the power supply of the extension telephone 2 via the extension telephone interface unit 107 (S410).

  FIG. 5 is a diagram for explaining an operation in the telephone control device 1 to start the power supply of the extension telephone and make a call when receiving a call instruction command for calling the call destination telephone number that the user desires to call from the control terminal 4. FIG.

  First, when a user selects a destination telephone number desired to be called from a list of destination telephone numbers such as a telephone directory application (Application) from a control terminal 4 such as a PC (Personal Computer), the telephone control device 1 transmits a call instruction command in which a call destination telephone number for which a call is desired is described (S501).

  The transmission instruction command reception unit 109 receives the transmission instruction command via the control terminal interface unit 108 and notifies the power supply control unit 103 of the transmission instruction command. The power supply control unit 103 starts power supply to the extension telephone 2 designated by the outgoing call instruction command via the extension telephone interface unit 107 (S502), and the call control unit 105 notifies the extension telephone 2 of outgoing call, and the extension telephone 2 Performs a call display and sends a dial tone from the handset (S503).

  Then, the call control unit 104 sends an outside line to the outside line network 5 via the outside line interface unit 101 (S504), and the user of the extension telephone 2 can make an outside line call (S505).

  When the call control unit 105 detects that the extension telephone 2 has finished the call via the extension telephone interface unit 107 by the on-hook of the extension telephone 2 (S506), the call control unit 104 transmits the call via the external line interface unit 101. Call disconnection is notified to the external network 5 (S507). The call control unit 105 notifies the detected information to the power supply control unit 103, and the power supply control unit 103 stops the power supply of the extension telephone 2 via the extension telephone interface unit 107 (S508).

  The embodiment of the present invention has been described above.

Further, as another embodiment of the present invention, a power supply start time setting 203 and a power supply end time setting 204 are set in the power supply start extension telephone number registration unit 103 shown in FIG. The power supply permission time zone may be set as the system batch setting in the telephone control device 1 for determination.

  Further, as another embodiment of the present invention, a telephone number is registered in the caller telephone number 202 shown in FIG. 2. However, by registering an extension telephone number in the caller telephone number 202, extension transmission and extension reception The power supply of the extension telephone 2 designated sometimes may be started. Further, in FIG. 3, the call instruction command from the control terminal 4 is an example of an outside line call, but an extension call is made with the destination telephone number as an extension telephone number, and the power supply control unit 103 determines that the call is a call instruction command. Regardless of the coincidence between the caller telephone number and the record 200 registered in the power supply start extension telephone number registration unit 106, the transmission specified by the call instruction command simultaneously with the start of power supply of the extension telephone 2 specified by the call instruction command You may make it start the electric power feeding of the extension telephone 2 applicable to a previous telephone number.

  The description of the embodiment has been made with the extension telephone 2, but it is common to the extension telephones 2-1 and 2-2. Since the difference between the extension telephones 2-1 and 2-2 is whether or not the power supply hub 3 is provided externally, the contents of the explanation are not affected.

  Further, in the above embodiment, the functional configurations of the telephone control device 1, the extension telephone 2-1, the extension telephone 2-2, the power supply hub 3, and the control terminal 4 shown in FIG. 1 are ASIC (Application Specific Integrated Circuit), FPGA. It may be realized in hardware by an integrated logic IC such as (Field Programmable Gate Array), or may be realized in software by a computer such as DSP (Digital Signal Processor). Alternatively, in a general-purpose computer such as a PC (Personal Computer) equipped with an auxiliary storage device such as a CPU, memory, HDD, DVD-ROM, and a communication interface such as a NIC (Network Interface Card) and a modem, the CPU executes a predetermined program. It may be realized by loading from an auxiliary storage device onto a memory and executing it.

DESCRIPTION OF SYMBOLS 1: Telephone control apparatus, 2-1: Extension telephone, 2-2: Extension telephone, 3: Power supply hub, 4: Control terminal, 5: External network, 101: External line interface part, 102: Originator telephone number extraction part, 103: power supply control unit 104: call control unit 105: call control unit 106: power supply start extension telephone number registration unit 107: extension telephone interface unit 108: control terminal interface unit 109: call instruction command reception unit

Claims (5)

A telephone control device that accommodates a plurality of extension telephones and supplies operating power to the extension telephones,
When the predetermined telephone number and the telephone number coincide with the caller telephone number of the incoming call that has arrived at its own device, the extension telephone that starts power supply and the incoming call that has arrived at its own apparatus, Phone number registration means for registering in association with a time zone for permitting the start of power supply and a transfer destination number for transferring an incoming call that has arrived at the own device outside the time zone for permitting the start of power supply, and an incoming call that has arrived at the own device Power supply control means for determining whether or not the source telephone number of the telephone number coincides with any of the telephone numbers registered in the telephone number registration means,
When the incoming call arrives at the own device, the power supply control means determines whether the incoming caller telephone number matches any of the telephone numbers registered in the telephone number registration means, and determines that they match , Start supplying power to the extension telephone corresponding to the telephone number,
The telephone control apparatus having an event-corresponding power saving function, wherein the power supply control means stops power supply to the extension telephone when it detects that the extension telephone is not used. The telephone control device according to claim 1,
If it is determined that the power supply control unit starts to supply power to the extension telephone based on the caller telephone number, the power supply control unit is configured to perform the predetermined power supply based on a time zone permitted to start power supply registered in the telephone number registration unit. A telephone control device having an event-corresponding power saving function, further determining whether or not to start power supply to the extension telephone. The telephone control device according to claim 1,
If a call instruction command is received from a predetermined control terminal connected to its own device, the power supply control means starts the power supply to the extension telephone to be transmitted designated by the received call instruction command, and then sends the call instruction command. A telephone control device having a power saving function corresponding to an event, characterized in that a call processing to a telephone number designated by is executed. The telephone control device according to claim 1, wherein
The power supply control means starts power supply to the extension telephone based on the caller telephone number and calls the extension telephone, but there is no response for a certain period of time, or the time period when the power supply control means permits the start of power supply Based on the above, when it is determined that the power supply of the predetermined extension telephone is not started, a transfer operation to the transfer destination number registered in the telephone number registration means is performed. Telephone control device. The telephone control device according to claim 2,
When the same time is set as the power supply start time and the power supply end time in the time zone for permitting the power supply start registered in the telephone number registration means, the predetermined extension telephone is always started without power supply. A telephone control having an event-related power saving function, wherein the incoming call is forwarded to a forwarding number, and the predetermined extension telephone is always powered when the time period for permitting the start of power feeding is not registered apparatus.

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