JP2006197104A - Power supply management server, ip telephone system, power supply managing method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power supply management server which can readily perform power supply control of an IP telephone, and to provide an IP telephone system and a power supply management method. <P>SOLUTION: A control section 3d reads out port information 3a2 stored in a connection state storage section 3a, in association with MAC address 3b1 stored in a designation storage section 3b. The control section 3d controls power supply from a port 1c indicated by the port information 3a2 thus read out, based on designation information b2 stored in the designation storage section 3b in relation with its MAC address 3b1. For example, the control section 3d generates a signal for controlling power supply from the port 1c indicated by the port information 3a2 thus read out, based on its designation information 3b2 and transmits the control signal to a power supply hub 1 having that port 1c. Upon receiving the control signal, the power supply hub 1 controls power supply from the port 1c, based on that control signal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a power management server, an IP telephone system, a power management method, and a program, and more particularly, a power management server, an IP telephone system, and a power management method for managing power feeding to an IP telephone connected via a hub port. And program.

  Conventionally, an IP (Internet Protocol) telephone system is known. For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2003-46665) describes an IP telephone system including a plurality of IP telephones, a power hub (power feeding hub), and a private branch exchange (PBX).

  In this IP telephone system, each of the plurality of IP telephones is connected to a power hub port. The power hub supplies power to the IP telephone connected to each port.

  Note that the power hub has a function of controlling on / off of power feeding.

  Patent Document 2 (Japanese Patent Laid-Open No. 2000-287240) describes a key telephone device that can reduce the power consumption of the key telephone. Specifically, a plurality of key telephones are connected to the main apparatus, and the main apparatus controls power feeding to the plurality of key telephones to reduce power consumption of the key telephones.

  For this reason, if the power hub described in Patent Document 1 executes the power supply control technology for the main device described in Patent Document 2, the power consumption of the IP telephone can be reduced.

  When the power hub described in Patent Document 1 executes the power supply control technology described in Patent Document 2, power supply control to the IP telephone is performed in units of power hubs. For this reason, for example, in an IP telephone system having a plurality of power hubs, the power supply control of the IP telephone must be set for each power hub. Therefore, the power supply control setting becomes complicated for the IP telephone system.

  An object of the present invention is to provide a power supply management server, an IP telephone system, a power supply management method, and a program capable of easily performing power supply control of an IP telephone.

  In order to achieve the above object, the power supply management server of the present invention is connected to a hub capable of supplying power to the IP telephone through a port connected to the IP telephone, and supplies power to manage the power supply from the port. A management server, a connection state storage unit that associates and stores identification information of the IP telephone and port information indicating a port connected to the IP telephone; identification information of the IP telephone; and the IP telephone The instruction storage unit stores instruction information for instructing the state of power supply to the storage unit, and stores it in the connection state storage unit in association with the IP telephone identification information stored in the instruction storage unit. And the power supply state from the port indicated by the read port information is stored in the instruction storage unit in association with the identification information of the IP telephone. Instruction information and a control unit which is controlled as shown.

  The power supply management method of the present invention is connected to a hub capable of supplying power to the IP telephone through a port connected to the IP telephone, and includes identification information of the IP telephone and a port connected to the IP telephone. A connection state storage unit that stores the port information in association with each other, and an instruction storage unit that stores the identification information of the IP telephone and the instruction information that indicates the power supply state of the IP telephone in association with each other A power supply management method performed by a management server, wherein a read step of reading port information stored in the connection state storage unit in association with identification information of the IP telephone stored in the instruction storage unit, and the read The instruction information stored in the instruction storage unit in association with the identification information of the IP telephone indicates the power supply state from the port indicated by the port information. And a Gosuru control step.

  According to the above invention, the power supply management server reads the port information stored in the connection state storage unit in association with the identification information of the IP telephone stored in the instruction storage unit, and the read port information is The power supply state from the indicated port is controlled as indicated by the instruction information stored in the instruction storage unit.

  For this reason, the power supply management server can manage the power supply of the hub. Therefore, for example, even in an IP telephone system having a plurality of hubs, the power supply management server can manage the power supply of each hub, and it is not necessary to set power supply control for each hub. Therefore, power supply control of the IP telephone can be easily performed.

  The instruction information indicates a period during which power supply to the IP telephone is stopped, and during the period during which power supply to the IP telephone is stopped, power supply from the port indicated by the read port information is stopped. As such, it is desirable that the hub be controlled.

  According to the above invention, it is possible to stop the power supply to the IP telephone in an arbitrary period.

  The instruction information indicates a period during which power is supplied to the IP telephone, and during the period during which power is supplied to the IP telephone, the hub is configured so that power is supplied from the port indicated by the read port information. It is desirable to be controlled.

  According to the above invention, it is possible to supply power to the IP telephone in an arbitrary period.

  Further, when the identification information of the IP telephone already stored in the connection state storage unit is newly stored in the connection state storage unit, the identification information of the IP telephone already stored and the identification of the IP telephone are stored. The port information associated with the information is preferably deleted from the connection state storage unit.

  According to the above invention, when the connection relationship between the IP telephone and the port changes, the old connection information is deleted. For this reason, the latest connection state is stored in the connection state storage unit.

  The identification information of the IP telephone is preferably a MAC address of the IP telephone.

  An IP telephone system of the present invention is an IP telephone system including the power supply management server, an IP telephone, and a hub capable of supplying power to the IP telephone through a port connected to the IP telephone, The control unit generates a control signal for controlling the power supply state from the port indicated by the read port information to be indicated by the instruction information stored in the instruction storage unit, and the control signal is Transmitting to the hub, the hub controls the power supply state from the port based on the control signal.

  The power management method of the present invention is a power management method performed by an IP telephone system including a power management server, an IP telephone, and a hub capable of supplying power to the IP telephone via a port connected to the IP telephone. The power supply management server reads the port information stored in the connection state storage unit in association with the IP telephone identification information stored in the instruction storage unit; Generating a control signal for controlling the power supply state from the port indicated by the read port information as indicated by the instruction information stored in the instruction storage unit, and transmitting the control signal to the hub And a power supply control step in which the hub controls power supply from the port based on the control signal.

  According to the above invention, the power supply management server can manage the power supply of the hub. Therefore, for example, even in an IP telephone system having a plurality of hubs, the power supply management server can manage the power supply of each hub, and it is not necessary to set power supply control for each hub. Therefore, power supply control of the IP telephone can be easily performed.

  The program of the present invention associates a hub capable of supplying power to an IP telephone through a port connected to the IP telephone, and identification information of the IP telephone and port information indicating a port connected to the IP telephone. And a connection state storage unit for storing the information, and an instruction storage unit for storing the identification information of the IP telephone and the instruction information for instructing the power supply state to the IP telephone in association with each other. A program for executing processing, wherein the read port information is stored in the connection status storage unit in association with the IP telephone identification information stored in the instruction storage unit; and the read port The power supply state from the port indicated by the information is indicated by the instruction information stored in the instruction storage unit in association with the identification information of the IP telephone. A control process for controlling the power supply management processing including causing the computer to perform the.

  According to said invention, it becomes possible to make a computer perform the said electric power feeding management method.

  According to the present invention, power supply control of an IP telephone can be easily performed.

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

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

  In FIG. 1, the IP telephone system is configured on a LAN, and includes a power supply hub 1a, a power supply hub 1b, IP telephones 2a to 2n, and a power supply management server 3.

  In this embodiment, two power supply hubs are used, but the number of power supply hubs can be changed as appropriate. The power supply hub 1a and the power supply hub 1b have the same configuration.

  The power feeding hubs 1a and 1b have a plurality of ports 1c. In addition to the normal hub function, the power supply hubs 1a and 1b can supply power to a device (IP telephone 2) connected to each port 1c.

  Each of the IP telephones 2a to 2i is connected to the port 1c of the power supply hub 1a, and power is supplied from the connected port 1c. Each of the IP telephones 2a to 2i has a LAN power supply function.

  Each of the IP telephones 2j to 2n is connected to the port 1c of the power supply hub 1b, and power is supplied from the connected port 1c. Each of the IP telephones 2j to 2n has a LAN power feeding function. The number of IP telephones 2 can be changed as appropriate.

  The power supply management server 3 is connected to the power supply hubs 1a and 1b via the LAN interface (I / F), and manages the power supply from the ports 1c of the power supply hubs 1a and 1b.

  The power supply management server 3 includes a connection state storage unit 3a, an instruction storage unit 3b, a memory 3c, and a control unit 3d.

  The connection state storage unit 3a stores the identification information of the IP telephones 2a to 2n and the port information indicating the port 1c to which the IP telephone is connected in association with each other. In the present embodiment, the MAC address of the IP phone 2 is used as the identification information of the IP phones 2a to 2n.

  FIG. 2 is an explanatory diagram showing an example of the connection state storage unit 3a.

  In FIG. 2, the connection status storage unit 3a associates the MAC address 3a1 of the IP phone 2, the port information 3a2 indicating the port 1c connected to the IP phone 2, and the extension number 3a3 of the IP phone 2. Stored.

  Returning to FIG. 1, the instruction storage unit 3b stores the identification information of the IP telephones 2a to 2n and the instruction information for instructing the power supply state to the IP telephones in association with each other.

  FIG. 3 is an explanatory diagram showing an example of the instruction storage unit 3b.

  In FIG. 3, in the instruction storage unit 3b, the MAC address 3b1 of the IP telephone 2 and instruction information 3b2 instructing the power supply state to the IP telephone 2 are stored in association with each other.

  The instruction information 3b2 may indicate a period (for example, holiday or night) during which power supply to the IP telephone 2 associated with the instruction information 3b2 is stopped, and is associated with the instruction information 3b2. A period during which power is supplied to the IP telephone 2 that is currently in use may be indicated.

  Returning to FIG. 1, the memory 3c is a computer-readable recording medium. A program that defines the operation of the power supply management server 3 is recorded in the memory 3c.

  The control unit 3d is a computer such as a CPU, and reads a program recorded in the memory 3c and executes the read program to realize various functions as described below.

  The control unit 3d has a clock function and a calendar function.

  The control unit 3d reads the port information 3a2 stored in the connection state storage unit 3a in association with the MAC address 3b1 stored in the instruction storage unit 3b.

  The control unit 3d controls the power supply state from the port 1c indicated by the read port information 3a2 as indicated by the instruction information 3b2 stored in the instruction storage unit 3b in association with the MAC address 3b1. .

  For example, the control unit 3d generates a control signal for controlling the power supply state from the port 1c indicated by the read port information 3a2 as indicated by the instruction information 3b2, and the control signal is transmitted to the port 1c. Is transmitted to the power supply hub 1. When the power supply hub 1 receives the control signal, the power supply hub 1 controls the power supply state from the port 1c based on the control signal.

  When the instruction information 3b2 indicates a period during which power supply to the IP telephone 2 is stopped, the control unit 3d, during that period, the port information 3a2 associated with the instruction information 3b2 via the MAC address. The power supply hub 1 is controlled so as to stop the power supply from the port 1c shown in FIG.

  When the instruction information 3b2 indicates a period during which power is supplied to the IP telephone 2, the control unit 3d determines that the port information 3a2 associated with the instruction information 3b2 via the MAC address is in that period. The power supply hub 1 is controlled so as to supply power from the port 1c shown.

  When the MAC address 3a1 already stored in the connection state storage unit 3a is newly stored in the connection state storage unit 3a, the control unit 3d also stores the MAC address 3a1 and the MAC address 3a1 that are already stored. The port information 3a2 and the extension number 3a3 associated with are deleted from the connection state storage unit 3a.

  The MAC address 3a1 and the port information 3a2 stored in the connection state storage unit 3a are preferably acquired as follows.

  Immediately after the IP telephone 2 is connected to the port 1 c of the power supply hub 1 and the power supply hub 1 starts to supply power to the IP telephone 2, the power supply hub 1 acquires the MAC address of the IP telephone 2.

  The power supply hub 1 stores the MAC address in association with the port information indicating the port 1c to which the IP telephone 2 is connected.

  The power supply hub 1 transmits the MAC address and port information to the power supply management server 3.

  The power supply management server 3 (specifically, the control unit 3d) stores the MAC address and port information in the connection state storage unit 3a in association with each other.

  In addition, although the structure of the Example was described in detail above, since the electric power feeding method of the electric power feeding hub 1 is well known for those skilled in the art and is not directly related to this invention, the detailed structure is abbreviate | omitted.

  The power supply management server 3 may be the main device of the IP telephone system.

  Next, the operation will be described.

  FIG. 4 is a sequence diagram for explaining the operation of the IP telephone system. The operation of the IP telephone system will be described below with reference to FIG.

  In step S401, the IP telephone 2 is connected to the port 1c of the power supply hub 1. When IP telephone 2 is connected to port 1c of power supply hub 1, power supply hub 1 executes step S402.

  In step S402, the power supply hub 1 supplies power to the IP telephone 2 connected to the port 1c. When power is supplied to the IP phone 2, the IP phone 2 executes Step S403.

  In step S <b> 403, the IP telephone 2 outputs an extension registration request addressed to the power supply management server 3 to the power supply hub 1. At this time, the IP telephone 2 outputs its own MAC address to the power supply hub 1 together with the extension registration request.

  When the power supply hub 1 receives the extension registration request and the MAC address from the IP telephone set 2, the power supply hub 1 executes step S404.

  In step S404, the power supply hub 1 stores the MAC address in association with the port information indicating the port 1c to which the IP telephone 2 is connected. Thereafter, the power supply hub 1 transmits an extension registration request addressed to the power supply management server 3, its MAC address, and its port information to the power supply management server 3.

  When receiving the extension registration request addressed to the power supply management server 3, its MAC address, and its port information, the power supply management server 3 (specifically, the control unit 3d) executes Step S405.

  In step S405, the control unit 3d stores the MAC address and the port information in the connection state storage unit 3a in association with each other.

  Thereafter, the control unit 3d assigns an extension number to the IP telephone 2 that has transmitted the extension registration request. Specifically, the control unit 3d stores the extension number in the connection state storage unit 3a in association with the MAC address of the IP telephone 2 to which the extension number is assigned.

  Thereafter, the control unit 3d executes Step S406.

  In step S406, the control unit 3d notifies the extension number to the IP telephone 2 that has transmitted the extension registration request via the power supply hub 1.

  When receiving the notification of the extension number, the IP telephone 2 sets the extension number and performs normal operation.

  On the other hand, the administrator of the IP telephone system inputs the MAC address of the IP telephone 2 and instruction information for instructing the power supply state to the IP telephone 2 to the power supply management server 3. When the control unit 3d of the power supply management server 3 receives the MAC address of the IP phone 2 and the instruction information, the control unit 3d executes Step S407.

  In step S407, the control unit 3d associates the MAC address of the IP telephone 2 with the instruction information, and stores them in the instruction storage unit 3b.

  The control unit 3d reads the port information stored in the connection state storage unit 3a in association with the MAC address stored in the instruction storage unit 3b.

  The control unit 3d controls the power supply state from the port 1c indicated by the read port information based on the instruction information stored in the instruction storage unit 3b in association with the MAC address.

  For example, when a period (nighttime or holiday) during which power supply to the IP telephone 2 is stopped is used as the instruction information, the control unit 3d operates as follows.

  When the current date and time is a period in which power supply to the IP telephone 2 is stopped, the control unit 3d executes step S408.

  In step S408, the control unit 3d sends a command (control signal) for stopping power supply from the port 1c connected to the IP telephone 2 having the MAC address associated with the instruction information to the power supply hub 1. When receiving the command, the power supply hub 1 executes Step S409.

  In step S409, the power supply hub 1 stops the power supply from the port 1c based on the command. For this reason, the power supply of the IP telephone 2 is turned off.

  When the current date and time is out of the period for stopping the power supply to the IP telephone 2, the control unit 3d executes step S410.

  In step S410, the control unit 3d sends a command (control signal) for starting power supply from the port 1c connected to the IP telephone 2 having the MAC address associated with the instruction information to the power supply hub 1. When receiving the command, the power supply hub 1 executes Step S411.

  In step S411, the power supply hub 1 starts power supply from the port 1c based on the command. For this reason, the power supply of the IP telephone 2 is turned on. Thereafter, the IP telephone 2 executes Step S403.

  As described above, since the power supply management server 3 controls on / off of power supply to the IP telephone 2, it is possible to reduce the power consumption of the IP telephone 2 and to save electricity costs.

  Next, an operation when the IP telephone 2 connected to the port 1c of the power supply hub 1 is moved to another port 1c will be described.

  When the IP telephone 2 is removed from the port 1c of the power supply hub 1, the power supply hub 1 executes Step S412.

  In step S412, the power supply hub 1 stops power supply from the port 1c from which the IP telephone 2 has been removed. In subsequent step S413, the IP telephone 2 is reconnected to the other port 1c of the feeding hub 1. When the IP telephone 2 is connected to the other port 1c of the power supply hub 1, the power supply hub 1 executes Step S402. Thereafter, steps S403 and S404 are executed.

  When step S404 is executed, the control unit 3d executes step S414.

  In step S414, the control unit 3d stores the MAC address and the port information in the connection state storage unit 3a in association with each other.

  Thereafter, the control unit 3d assigns an extension number to the IP telephone 2 that has transmitted the extension registration request. Specifically, the control unit 3d stores the extension number in the connection state storage unit 3a in association with the MAC address of the IP telephone 2 to which the extension number is assigned.

  Thereafter, when the MAC address already stored in the connection state storage unit 3a is newly stored in the connection state storage unit 3a, the control unit 3d is associated with the already stored MAC address and the MAC address. The port information and extension number that have been deleted are deleted from the connection state storage unit 3a.

  According to the present embodiment, the following effects can be obtained.

  The first effect is that the power consumption of the IP telephone 2 can be managed to reduce the power consumption.

  The second effect is that, since the power supply management server 3 manages the power supply to the IP telephone 2, the power management for each IP telephone or the power management for each group of IP telephones can be performed.

  IP phones are likely to consume more power than existing phones. Therefore, by using VoIP, the communication cost of the IP telephone can be reduced, but the electricity cost of the IP telephone cannot be reduced.

  According to the present embodiment, it is possible to reduce the power consumption of the IP telephone, and thus it is possible to reduce the electricity bill.

  In the present embodiment, the power supply management server 3 reads the port information stored in the connection state storage unit 3a in association with the MAC address (identification information) of the IP telephone stored in the instruction storage unit 3b. The power supply state from the port indicated by the read port information is controlled as indicated by the instruction information stored in the instruction storage unit 3b.

  For this reason, the power supply management server 3 can manage the power supply of the power supply hub 1. Therefore, for example, even in an IP telephone system in which a plurality of power supply hubs 1 exist, the power supply management server 3 can manage the power supply of each power supply hub 1 and there is no need to set power supply control for each power supply hub 1. Therefore, power supply control of the IP telephone 2 can be easily performed.

  In the present embodiment, the instruction information indicates a period during which the power supply to the IP telephone 2 is stopped, and the control unit 3d displays the instruction information and the MAC address during the period during which the power supply to the IP telephone 2 is stopped. The power supply hub 1 is controlled so as to stop the power supply from the port indicated by the port information associated therewith. In this case, the power supply to the IP telephone can be stopped in an arbitrary period.

  In addition, the instruction information indicates a period during which power is supplied to the IP telephone 2, and in a period during which the control unit 3d supplies power to the IP telephone 2, the port information associated with the instruction information via the MAC address is It is desirable to control the feeding hub 1 so as to supply power from the port shown. In this case, it is possible to supply power to the IP telephone in an arbitrary period.

  Further, in this embodiment, when the MAC address of the IP telephone already stored in the connection state storage unit 3a is newly stored in the connection state storage unit 3a, the control unit 3d stores the already stored IP address. The MAC address of the telephone and the port information associated with the MAC address are deleted from the connection state storage unit 3a.

  In this case, when the connection relationship between the IP telephone 2 and the port 1c changes, the old connection information is deleted. For this reason, the latest connection state is stored in the connection state storage unit 3a.

  In the embodiment described above, the illustrated configuration is merely an example, and the present invention is not limited to the configuration.

  For example, the identification information of the IP telephone is not limited to the MAC address of the IP telephone and can be changed as appropriate.

  In FIG. 1, the connection state storage unit 3a and the instruction storage unit 3b are shown as separate components, but the connection state storage unit 3a and the instruction storage unit 3b may be combined into one storage unit. In this case, the storage unit (including the connection state storage unit 3a and the instruction storage unit 3b) includes the identification information of the IP telephone, the port information indicating the port connected to the IP telephone, and the IP telephone. It is desirable to store the instruction information indicating the power supply state in association with each other.

It is the block diagram which showed the IP telephone system of one Example of this invention. It is explanatory drawing which showed an example of the connection state storage part 3a. It is explanatory drawing which showed an example of the instruction | indication storage part 3b. It is a sequence diagram for demonstrating operation | movement of an IP telephone system.

Explanation of symbols

1a, 1b Power supply hub 1c Port 2 IP telephone 3 Power supply management server 3a Connection state storage unit 3b Instruction storage unit 3c Memory 3d Control unit

Claims (13)

A power supply management server connected to a hub capable of supplying power to the IP telephone through a port connected to the IP telephone and managing power supply from the port of the hub;
A connection state storage unit that associates and stores identification information of the IP telephone and port information indicating a port connected to the IP telephone;
An instruction storage unit for storing the identification information of the IP telephone and instruction information for instructing a power supply state to the IP telephone in association with each other;
The port information stored in the connection state storage unit in association with the IP telephone identification information stored in the instruction storage unit is read, and the power supply state from the port indicated by the read port information is read out from the instruction And a control unit that performs control as indicated by the instruction information stored in association with the identification information of the IP telephone in the storage unit. The power supply management server according to claim 1,
The instruction information indicates a period during which power supply to the IP telephone is stopped,
The power supply management server, wherein the control unit controls the hub so that power supply from a port indicated by the read port information is stopped during a period in which power supply to the IP telephone is stopped. The power supply management server according to claim 1,
The instruction information indicates a period during which power is supplied to the IP phone,
The power supply management server, wherein the control unit controls the hub so that power is supplied from a port indicated by the read port information during a period in which power is supplied to the IP telephone. In the power supply management server according to any one of claims 1 to 3,
When the identification information of the IP telephone already stored in the connection state storage unit is newly stored in the connection state storage unit, the control unit stores the identification information of the IP telephone already stored and the IP telephone A power supply management server that deletes port information associated with telephone identification information from the connection state storage unit. The power supply management server according to any one of claims 1 to 4,
The power supply management server, wherein the identification information of the IP telephone is a MAC address of the IP telephone. 6. An IP telephone system comprising: the power supply management server according to claim 1; an IP telephone; and a hub capable of supplying power to the IP telephone via a port connected to the IP telephone. Because
The control unit generates a control signal for controlling the power supply state from the port indicated by the read port information to be indicated by the instruction information stored in the instruction storage unit, and the control signal is To the hub,
The IP telephone system, wherein the hub controls a power supply state from the port based on the control signal. A connection that is connected to a hub capable of supplying power to the IP telephone through a port connected to the IP telephone, and stores the identification information of the IP telephone and the port information indicating the port connected to the IP telephone in association with each other A power supply management method performed by a power supply management server including a state storage unit and an instruction storage unit that stores identification information of the IP telephone and instruction information for instructing a power supply state to the IP telephone in association with each other. ,
A step of reading out the port information stored in the connection state storage unit in association with the identification information of the IP telephone stored in the instruction storage unit;
A control step of controlling the power supply state from the port indicated by the read port information as indicated by the instruction information stored in the instruction storage unit in association with the identification information of the IP telephone. Management method. The power supply management method according to claim 7,
The instruction information indicates a period during which power supply to the IP telephone is stopped,
In the control step, the power supply management method of controlling the hub so as to stop the power supply from the port indicated by the read port information during a period in which the power supply to the IP telephone is stopped. The power supply management method according to claim 7,
The instruction information indicates a period during which power is supplied to the IP phone,
In the control step, a power supply management method of controlling the hub so that power is supplied from a port indicated by the read port information during a period of supplying power to the IP telephone. The power supply management method according to any one of claims 7 to 9,
When the identification information of the IP telephone already stored in the connection state storage unit is newly stored in the connection state storage unit, the identification information of the IP telephone and the identification information of the IP telephone already stored The power supply management method further comprising a deletion step of deleting the associated port information from the connection state storage unit. In the electric power feeding management method of any one of Claims 7 thru | or 10,
The power management method, wherein the identification information of the IP telephone is a MAC address of the IP telephone. 6. An IP telephone system comprising: the power supply management server according to claim 1; an IP telephone; and a hub capable of supplying power to the IP telephone via a port connected to the IP telephone. Is a power management method performed by
The power supply management server reads the port information stored in the connection state storage unit in association with the IP telephone identification information stored in the instruction storage unit;
The power supply management server generates a control signal for controlling the power supply state from the port indicated by the read port information to be indicated by the instruction information stored in the instruction storage unit, and the control signal Transmitting to the hub; and
And a power supply control step in which the hub controls a power supply state from the port based on the control signal. Connection state storage for storing a hub capable of supplying power to the IP telephone through a port connected to the IP telephone, and identification information of the IP telephone and port information indicating a port connected to the IP telephone in association with each other And a command storage unit for storing the identification information of the IP telephone and the instruction information for instructing the power supply state to the IP telephone in association with each other. There,
A read process for reading the port information stored in the connection status storage unit in association with the identification information of the IP telephone stored in the instruction storage unit;
Control processing for controlling the power supply state from the port indicated by the read port information as indicated by the instruction information stored in the instruction storage unit in association with the identification information of the IP telephone. A program for causing the computer to execute power supply management processing.

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