JP5376688B2 - Telephone device and call transfer method - Google Patents

Description

  The present invention relates to a telephone device capable of performing short-range wireless communication, and more specifically, can be used as a call input / output unit for short-distance wireless communication for calls received at a partner terminal connected via short-range wireless communication. The present invention relates to a telephone device and a call transfer method thereof.

  2. Description of the Related Art Recently, a voice transfer function for making a call via a short-range wireless communication call device connected via short-range wireless communication for a call received by a portable terminal using a mobile communication line has been created.

  These voice transfer functions have names such as hands-free and speakerphone, and are configured so that a mobile terminal and a headset or a car can be connected by short-range wireless communication to make a call.

  As a technology related to the voice transfer function, Patent Literature 1 and Patent Literature 2 can be cited.

  Japanese Patent Laid-Open No. 2004-151867 discloses vehicle-mounted short-range wireless communication using short-range wireless communication (Bluetooth (registered trademark)) for exchanging call voice in a call via a mobile communication line set between portable terminals. A technique that can be performed via a communication device (hands-free device) is disclosed. In addition, a technology is disclosed in which a call on a handset of a mobile terminal and a call on a short-range wireless communication call device can be switched by receiving a predetermined operation after the mobile terminal and the short-range wireless communication call device are connected. Yes.

  Also, in Patent Document 2, mobile terminals can register each other as a hands-free set (slave side), and an incoming call to one mobile terminal via a mobile communication line can be transferred to another mobile terminal via Bluetooth communication. And a technique related to a portable terminal configured to allow the other portable terminal to receive an incoming call and to make a call thereafter.

JP 2008-306769 A JP 2010-278857 A

  When transferring a call made by another communication terminal via the short-range wireless communication technology, a communication terminal preset by the user when the call is started from the communication terminal in the call to the transfer destination device. The call is handed over between the connected devices so that it operates.

  However, with the existing technologies as described above, calls at various locations desired by the user cannot be performed. In other words, the telephone system cannot provide a good call environment to the user.

  For example, a telephone device that is fixedly installed at home or the like cannot receive a call via a short-range wireless communication technology. Also, in a living room where such a telephone device is placed, the user has a request to make a call for a long time or while moving in the room, but the call setting is switched. Without being able to make various requests. In addition, there are many information devices that do not have compatibility with existing telephone devices and require new operation knowledge from users.

  An object of the present invention is to solve the above-described problems and provide a telephone device that can accept a call made by a call set in another communication terminal at a location desired by a user.

  A telephone device according to the present invention includes a short-range wireless unit that can be connected to a communication terminal, a distance estimation unit that estimates a distance between the communication terminal and the own device from electric field strength, and a first call unit provided as a handset. A call using either the first call means or the second call means based on the estimated distance from a second call means comprising a speaker and a microphone used for a call not via the handset And determining means for determining whether or not to provide the environment to the user, and determining based on the value obtained by the distance estimating means when receiving a call transfer by connecting to a communication terminal via the short-range wireless means And a call environment is provided to the user using either the first call means or the second call means.

  An object of the present invention is to provide a telephone device that can accept a call made by a call set in another communication terminal at a location desired by a user.

It is the schematic which shows the network structure of the telephone system used for description. 1 is a block diagram showing a schematic configuration of a telephone device 10. FIG. It is explanatory drawing of the example of a table which showed the some threshold value regarding the electric field strength of the short distance radio | wireless communication which concerns on 1st Embodiment. 4 is a flowchart illustrating a schematic overall operation example of the telephone device 10. It is a flowchart which shows the schematic whole operation example of the telephone apparatus 10 in 2nd Embodiment. It is explanatory drawing of the example of a table which showed the some threshold value regarding the electric field strength of the short distance radio | wireless communication which concerns on 2nd Embodiment. It is the schematic which shows the network structure of the telephone system which concerns on 3rd Embodiment. It is a perspective view which shows the schematic external appearance structure of the telephone apparatus 10-1 which concerns on 3rd Embodiment. It is explanatory drawing of the example of a table which showed the some threshold value regarding the electric field strength of the short distance radio | wireless communication which concerns on 3rd Embodiment.

  An embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a schematic diagram showing a network configuration required for explanation of the telephone system according to the present embodiment.
As shown, the telephone system includes a telephone device 10 according to the present invention, a known mobile terminal 20 and a known mobile communication network. The portable terminal 20 has a built-in short-range wireless communication module and can use the telephone device 10 according to the present invention as a communication partner.

  The mobile terminal 20 communicates with the telephone device 10 via short-range wireless communication after setting a call by a predetermined operation such as reception of a paging from the mobile communication network or making a call, or before or during the setting of the call. Short range wireless connection is possible. This short-range wireless communication connection may be performed when a call is taken over, or the connection state may be maintained before that time.

  The portable terminal 20 may be any portable terminal as long as it can perform short-range wireless communication and call setting. For example, a general mobile phone terminal, a smart phone, and a tablet terminal can be exemplified. Further, a PHS terminal connected to the PHS network may be used.

FIG. 2 is a block diagram illustrating a schematic configuration of the telephone device 10.
As shown in the figure, the telephone device 10 includes an IP phone function unit 11 that provides a function as an IP phone, a handset 12, a speaker and a microphone 13 that are used as a speakerphone, and a short-range radio unit 14 and a control unit. The distance estimation unit 15 and the determination unit 16 are included.

  The short-range wireless unit 14 can perform communication by connecting to the mobile terminal 20 by performing necessary short-range communication. For the short-range wireless unit 14, for example, a Bluetooth module may be used.

  The control unit operates the processor based on the program recorded in the storage unit, and operates the distance estimation unit 15 and the determination unit 16.

  The distance estimation unit 15 estimates the distance between the communication terminal 20 and the own device based on the information regarding the electric field strength obtained from the short-range wireless unit 14. The information regarding the electric field strength may be a value indicating the electric field strength or a value indicating an approximate strength obtained by dividing the electric field strength value into levels.

  The determination unit 16 uses the information from the distance estimation unit 15 when the device is connected to the portable terminal 20 by performing short-range radio, and based on the distance, the handset 12 or the speaker and microphone 13 It is determined whether to provide a user with a call environment. In this determination, the operation setting may be fixed in advance, or the operation setting may be performed with reference to table information as shown below.

  When the telephone device 10 is configured to use table information, the telephone device 10 stores various information in the storage unit, and holds a plurality of threshold values indicating the electric field strength with the communication terminal 20 to be connected as table information. .

  FIG. 3 is an example of a table showing a plurality of threshold values related to the electric field strength of short-range wireless communication. In this way, it is determined whether to provide the user with a call environment using either the handset 12 or the speaker and the microphone 13 based on the obtained distance in comparison with the threshold value.

If the output power of short-range wireless communication is a fixed value determined in advance, the operation of which call means to use may be determined directly from the electric field strength.
Moreover, you may make it estimate the distance of the communication terminal 20 and an own apparatus from the signal of the short distance radio | wireless transmitted / received before connecting.

Next, the operation of the telephone device 10 according to the embodiment will be described.
First, as a precondition for explaining the operation, it is assumed that the telephone device 10 and the mobile terminal 20 are set for pairing. Here, the pairing setting is various conditions for mutual short-range wireless connection between devices.
In addition, it is assumed that the mobile terminal 20 capable of short-range wireless communication is in a call state (call has been set) with another telephone terminal via the mobile communication network.
In addition, it is assumed that the portable terminal 20 receives a predetermined operation from the user and switches to a voice path to short-range radio.

FIG. 4 is a flowchart showing a schematic operation example during transfer of the telephone device 10.
The telephone device 10 accepts a short-distance wireless connection request from the portable terminal 20 in a call state with another telephone terminal and confirms the connection, and then accepts a call transfer request and transfers the call to the own device. Processing is started (step S1). The connection request may be made from the telephone device 10 to the mobile terminal 20. For example, a connection button for performing a short-range wireless connection may be provided on the apparatus main body, and a connection request may be made to the portable terminal 20 by pressing the connection button. Alternatively, a call transfer request may be accepted and a connection request may be made from the telephone device 10 to the mobile terminal 20. For example, when a call transfer request is received by the main body of the apparatus by short-range wireless communication, the following operation may be performed while connecting to the other party. In the connection confirmation, it is only necessary to confirm that the pairing setting is correct and that there is an electric field strength so that predetermined communication quality can be maintained.

  The telephone device 10 that has received the call transfer request determines whether or not to accept the call on the call set in the portable terminal for the portable terminal 20, and if accepted (Yes), proceeds to the next step and does not accept it. In the case (No), transfer is rejected (step S2).

  The telephone device 10 that has accepted the transfer estimates the distance using the strength measurement result of the short-range radio wave with the connected mobile terminal 20 (step S3). When estimating the distance, the output of the short-range radio wave to be transmitted from the telephone device 10 to the portable terminal 20 may be designated as necessary. In addition, the telephone device 10 may receive a notification from the mobile terminal 20 regarding the output value of the transmitted short-range wireless radio wave. The timing used for the calculation of the electric field strength may be any method as long as negotiation is performed between the two devices. For example, a sequence number or a time stamp of a short-range wireless communication signal can be used.

Next, the telephone device 10 determines whether the value based on the estimated electric field strength is equal to or less than a predetermined threshold value A set in advance, and proceeds to each step (step S4).
The specified value A here is a value for determining whether the call path of the telephone device 10 after switching is a hands-free call or a handset call.

  If it is determined that the calculated value is equal to or less than the specified value A (the radio wave is weak), the mobile terminal 20 is identified as being away from the telephone device 10, and the hands-free call path of the telephone device 10 is effectively functioned (step S5). ). That is, the speaker and the microphone 13 are operated as a call means.

  On the other hand, if it is determined that the calculated electrolytic strength exceeds the specified value A (strong radio wave), the mobile terminal 20 is identified as being near the telephone device 10 and the handset call path of the telephone device 10 is effectively functioned. (Step S6). That is, the handset 12 is operated as a call means. At this time, the telephone device 10 may notify a signal indicating that a call can be made using the handset 12 by sound, light, a message, or the like. Further, the handset may be vibrated or a message may be displayed on the mobile terminal 20 side.

  Thereafter, communication related to the call via the short-range wireless connection between the mobile terminal 20 and the telephone device 10 is started. As a result, the telephone device 10 is in a call state with another mobile terminal that has been set up for a call with the mobile terminal 20 via the handset or speakerphone.

  At this time, the call is established by the connection between the telephone device 10 and the portable terminal 20 via the short-range wireless communication, and the connection between the portable terminal 20 and another portable terminal or the like via the mobile communication network or the like.

  Through the above operation, according to the present embodiment, the telephone device after the short-distance wireless connection is established by recognizing and using the strength of the short-range wireless electric field strength between the communication terminal and the own device during the call. The user can automatically select either a hands-free or handset call path, and can provide uninterrupted location-free conversations to the user.

Next, a second embodiment will be described with reference to FIGS.
The second embodiment has the same configuration as that of the first embodiment, and is different from the first embodiment in the processing operation after estimating the distance based on the electric field strength.

FIG. 5 is a flowchart illustrating a schematic overall operation example of the telephone device 10 according to the second embodiment.
The telephone device 10 is connected to the mobile terminal 20 that is in a call state with another telephone by short-range radio, receives a call transfer request, and determines whether or not to accept a call in a call set in the mobile terminal If it is accepted (Yes), the process proceeds to the next step. If it is not accepted (No), the transfer is rejected (Steps S1 to S2).

  The telephone device 10 that has accepted the transfer estimates the distance using the strength measurement result of the short-range radio wave with the connected mobile terminal 20 (step S3).

Next, the telephone device 10 determines which range of the preset electric field strength the value based on the estimated electric field strength falls and proceeds to each step (step S4).
The specified value A here is a threshold value for determining whether the call path of the telephone device 10 after switching is a hands-free call or a handset call.
The specified value B is a threshold value for determining a required distance when the telephone device 10 performs hands-free. In the present embodiment, the specified value B is used to determine whether the call path of the telephone device 10 after switching is to increase or decrease the call volume of the hands-free call.

FIG. 6 is a table example showing a plurality of threshold values relating to the electric field strength of the short-range wireless communication according to the second embodiment.
In addition, you may comprise so that each threshold value corresponding to the distance set beforehand can be changed arbitrarily. As a result, it is possible to reflect the short-range wireless output strength of the connected mobile terminal, antenna characteristics, user requirements, radio environment at the place of use, and the like.

  In addition, the “large” and “small” values of the hands-free volume setting can be arbitrarily changed. In addition, by providing a plurality of setting values without setting the prescribed value as one B, it is possible to provide a large number of volume settings based on the electric field strength and change them linearly.

  If it is determined that the calculated value is less than the specified value B (weak radio wave), the mobile terminal 20 is identified as being away from the telephone device 10, and the volume (volume or sensitivity) of the speaker and microphone 13 is adjusted to a large level. Then, the hands-free call path of the telephone device 10 is made to function effectively (step S5-1).

  If it is determined that the calculated value is less than the prescribed value A and greater than B (the radio wave is medium), the mobile terminal 20 is identified as being far away from the telephone device 10 and the volume of the speaker and microphone 13 is adjusted to a small level. Then, the hands-free call path of the telephone device 10 is made to function effectively (step S5-2).

  If it is determined that the calculated value exceeds the specified value A (strong radio wave), the mobile terminal 20 is identified as being near the telephone device 10 and the handset call path of the telephone device 10 is effectively functioned (step S6). ).

  Thereafter, communication related to the call via the short-range wireless connection between the mobile terminal 20 and the telephone device 10 is started. As a result, the telephone device 10 is in a call state with another mobile terminal that has been set up for a call with the mobile terminal 20 via the handset or speakerphone. At this time, for a hands-free call, the volume of the speakerphone is automatically adjusted according to the distance between the mobile terminal and the telephone device.

  For hands-free calls, distance estimation may be repeated at predetermined time intervals to adjust the volume appropriately.

  With the above operation, according to the present embodiment, the telephone device after the short-distance wireless connection is established by recognizing and using the strength of the short-range wireless electric field strength between the portable terminal and the own device during the call. The call path can be automatically selected as a hands-free call or a handset, and the volume in the hands-free call can be automatically adjusted, so that a continuous conversation can be provided to the user.

Next, a third embodiment will be described with reference to FIGS.
FIG. 7 is a schematic diagram showing a network configuration of a telephone system according to the third embodiment.

  As shown in the figure, the telephone system includes a telephone device 10 (master unit 10-1, slave unit 10-2) according to the present invention, a known portable terminal 20, and a known mobile communication network (not shown). .

  The telephone device 10-1 is connected to a public telephone line network and operates as a base phone of a general subscriber telephone, and has a handset 12, a speaker and a microphone 13 used as a speakerphone. Moreover, the short distance radio | wireless part 14, the distance estimation part 15, and the determination part 16 are included similarly to 1st Embodiment. Further, as can be seen from the appearance, the housing has a portion on which the communication terminal can be placed.

  The telephone device 10-2 is a telephone terminal that has the same configuration as a general slave unit and can perform a cordless call with the master unit. The telephone device 10-2 has a speakerphone function. The communication standard may be any standard such as a specific low power wireless communication standard or a PHS standard.

FIG. 8 is a perspective view showing a schematic external structure of the telephone device 10-1 according to the third embodiment.
As shown in the figure, the telephone device 10-1 has a mounting surface 17 on which a communication terminal can be mounted on the main body, and the communication terminal can be charged as necessary.

  In the figure, reference numeral 12 denotes a handset, 13 denotes a microphone (13-1) and a speaker (13-2), 18 denotes a function button, and 19 denotes a short-range wireless button. In addition, a speaker button, a volume, an LED lamp, and the like are provided and used for various operations. The mounting surface 17 is provided with a cushion for a communication terminal.

  The distance estimation unit 15 of the present embodiment estimates the distance between the mobile terminal 20 and the device itself using the obtained transmission power value together with the electric field strength. The transmission power value is a power value of the short-range wireless communication output from the mobile terminal 20, and may be obtained by receiving notification from the mobile terminal 20 about the output value at a specific timing, or by other methods. You may ask for it. By using the transmission power value in this way, it is possible to reduce the influence on the distance estimation even in a communication in which the transmission power value varies each time.

  The short-range wireless button 19 is a button that, when pressed, starts a short-range wireless connection via a short-range wireless module built in the main body.

  The control unit receives an operation on the short-range wireless button 19 and connects to a communication terminal that can be connected via the short-range wireless unit, and performs processing for receiving a transfer of a call for which a call is set. Is possible. In this process, when a predetermined distance to the extent that the portable terminal 20 is placed on the placement surface 14 is detected, an operation on the short-range wireless button 19 can be omitted. If comprised in this way, the telephone call with the handset 12 will be attained by putting the portable terminal 20 in a call on the mounting surface 14.

  It is also possible to accept a dial number operated on the portable terminal 20 and make a call via the public telephone line network by pressing the button and connecting to the portable terminal 20 at normal times. Various settings for such operations may be performed via a connected portable terminal, function button 18 or the like.

FIG. 9 is an example of a table showing a plurality of threshold values relating to the electric field strength of the short-range wireless communication according to the third embodiment.
The determination unit 16 uses the information from the distance estimation unit 15 to provide the user with which call environment to provide to the user when the device is connected to the portable terminal 20 by performing short-range wireless communication. Determine.

  When threshold values such as those illustrated in FIG. 9 are used, depending on the state based on the obtained distance, transition to the standby state of the handset call (threshold A or higher) and speakerphone call with necessary volume adjustment (Thresholds A to B, thresholds B to C) are performed. Further, the telephone device 10-1 may be configured to use a microphone or a speaker included in the slave device 10-2 according to the setting. In this case, it is only necessary to connect to a slave unit as a master unit and to provide a call means to a required slave unit 10-2. Moreover, it is good also as using the microphone and speaker of the portable terminal 20 currently connected. In this case, the volume may be adjusted so that the conversation from the other party is sent out from the speaker at a small volume so that the presence or absence of the conversation can be confirmed.

  The telephone device 10-1 uses the determination unit 16 to select one or more required objects from a plurality of speakers and microphones capable of transmitting sound as a calling means without using the handset 12 of the main body, and uses the calling environment as a user. By providing this information, the good call state of the transferred call is maintained.

  As described above, according to the present embodiment, the voice call path from the mobile terminal that is in a call is switched to the telephone device side, and at that time, a hands-free call or a handset call is automatically selected according to the estimated distance. In this automatic selection, if the call is started with a certain volume setting (default value or predetermined setting value) regardless of the position (far or near) where the caller (self) wants to speak, the appropriate speaker volume or microphone Since the sensitivity is not provided and the call cannot be heard or is troublesome, an appropriate call environment can be provided by selecting an appropriate call means in the determination unit 16.

  If necessary, the control unit may select and perform acoustic operation processing such as howling countermeasures and echo processing corresponding to the distance in correspondence with the selected call means.

  As described above, the telephone device to which the present invention is applied enables the transfer of a call that can be accepted at a location desired by the user in a call that is performed by a call set in another communication terminal.

  Note that the connection between the telephone device and the communication terminal having a call may be operated as a master unit (master) and the other party as a slave unit (slave).

  In addition, the specific configuration of the present invention is not limited to the above-described embodiment, and changes within a range not departing from the gist of the present invention are included in the present invention.

In addition, a part or all of the above-described embodiments can be described as follows. Note that the following supplementary notes do not limit the present invention.
[Appendix 1]
Short-range wireless means capable of connecting to a communication terminal;
Distance estimation means for estimating a distance between the communication terminal and the device from electric field intensity;
A first calling means provided as a handset;
A second call means comprising a speaker and a microphone used for a call not via the handset;
Determining means for determining whether to provide a user with a calling environment using either the first calling means or the second calling means based on the estimated distance;
Including
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
A telephone device that performs determination based on a value obtained by the distance estimating unit and provides a user with a calling environment using either the first calling unit or the second calling unit. .

[Appendix 2]
The determination means includes
The telephone apparatus according to the above supplementary note, wherein the volume of the speaker when using the second call means is adjusted based on the estimated distance.

[Appendix 3]
The determination means includes
The telephone apparatus according to the above supplementary note, wherein the microphone sensitivity when using the second call means is adjusted based on the estimated distance.

[Appendix 4]
The second call means can be composed of one or more speakers and one or more microphones,
The determination means includes
The telephone apparatus according to the above supplementary note, wherein a speaker and a microphone to be used as the second call means are determined based on the estimated distance.

[Appendix 5]
The determination means selects a microphone of the communication terminal connected via the short-range wireless means as the second call means based on the estimated distance, and maintains the call state. The telephone apparatus according to the above supplementary note, which is characterized.

[Appendix 6]
The telephone apparatus according to the above supplementary note, wherein the distance estimation unit estimates a distance between the communication terminal and the own apparatus by using the obtained transmission power value together with the electric field strength.

[Appendix 7]
The determination unit is configured to select a speaker and a microphone included in the handset of the own device as the second call unit based on the estimated distance, and to maintain a call state. Telephone device.

[Appendix 8]
Having a place where the communication terminal can be placed on the main body,
Call transfer requesting means for accepting an operation to a predetermined input means, connecting to a communication terminal that can be connected via the short-range wireless means, and performing processing for receiving transfer of a call for which a call has been set Have
When the call transfer request means detects a predetermined distance to the extent that the communication terminal is placed at a place where the call can be placed, the call transfer request means omits an operation to the predetermined input means and receives a call transfer. The telephone device according to the above supplementary note, wherein the telephone device is performed.

[Appendix 9]
The telephone device according to the above supplementary note, which is a general subscriber telephone or an IP telephone.

[Appendix 10]
The telephone apparatus according to the above supplementary note, wherein the short-range wireless means uses a Bluetooth (registered trademark) standard.

[Appendix 11]
The short-range wireless means uses the Bluetooth standard,
The telephone apparatus as described in the above supplementary note, wherein the communication apparatus is connected as a slave with the own apparatus as a master and the communication terminal connected through the short-range wireless means as a slave.

[Appendix 12]
The telephone apparatus according to the above supplementary note, wherein the short-range wireless means uses a wireless LAN standard.

[Appendix 13]
The telephone apparatus according to the above supplementary note, wherein the short-range wireless means performs data communication using a power-saving wireless communication standard.

[Appendix 14]
The determination means refers to the table information in which the threshold value is recorded, and based on the estimated distance, uses the first call means or the second call means to inform the user of the call environment. The telephone device according to the above supplementary note, wherein it is determined whether to provide the telephone device.

[Appendix 15]
The determination unit determines a speaker and a microphone to be used as the second call unit based on the estimated distance with reference to table information in which a plurality of threshold values are recorded. apparatus.

[Appendix 16]
The telephone apparatus according to the above supplementary note, wherein the distance estimating means specifies the output intensity of a radio wave used for distance estimation to a connected communication terminal.

[Appendix 17]
The distance estimation means receives the output intensity of a radio wave used for distance estimation from a connected communication terminal.

[Appendix 18]
The telephone apparatus according to the above supplementary note, wherein when the call is continued, the distance is repeatedly estimated at predetermined time intervals, and the volume is adjusted appropriately.

[Appendix 19]
The telephone device as described in the above supplementary note, wherein acoustic operation processing for howling countermeasures is selected in correspondence with the distance in correspondence with the selected call means.

[Appendix 20]
The telephone apparatus according to the above-mentioned supplementary note, wherein the acoustic operation process of the echo process is selected in correspondence with the distance in correspondence with the selected call means.

[Appendix 21]
For short-distance wireless means that can be connected to a communication terminal, distance estimation means for estimating the distance between the communication terminal and its own device from electric field strength, first call means provided as a handset, and for calls not via the handset Whether to provide the user with a call environment using either the first call means or the second call means based on the estimated distance and the second call means comprising a speaker and a microphone to be used Using a telephone device having a determination means for determining,
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
Connected to the communication terminal via short-range wireless means;
Based on the value obtained by the distance estimating means, it is determined whether to use the first calling means or the second calling means,
A call transfer method comprising: providing a call environment to a user using a determined call means.

[Appendix 22]
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The call transfer method according to the above supplementary note, wherein the determination unit adjusts a speaker volume when the second call unit is used based on the estimated distance.

[Appendix 23]
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The call transfer method according to the above supplementary note, wherein the determination means adjusts microphone sensitivity when using the second call means based on the estimated distance.

[Appendix 24]
The second call means can be composed of one or more speakers and one or more microphones,
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The call transfer method according to the above supplementary note, wherein the determination unit determines a speaker and a microphone to be used as the second call unit based on the estimated distance.

[Appendix 25]
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The determination means selects a microphone of the communication terminal connected via the short-range wireless means as the second call means based on the estimated distance, and maintains the call state. The call transfer method according to the above supplementary note, which is characterized in that

[Appendix 26]
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The distance estimating means estimates the distance between the communication terminal and the own apparatus using the obtained transmission power value together with the electric field strength.

[Appendix 27]
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The determination unit is configured to select a speaker and a microphone included in the handset of the own device as the second call unit based on the estimated distance, and to maintain a call state. Call transfer method.

[Appendix 28]
The telephone device body has a place where a communication terminal can be placed,
Call transfer requesting means for accepting an operation to a predetermined input means, connecting to a communication terminal that can be connected via the short-range wireless means, and performing processing for receiving transfer of a call for which a call has been set Have
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The call transfer request means, when detecting a predetermined distance to the extent that the communication terminal is placed at a place where the call can be placed, omits an operation to the predetermined input means and receives a call transfer The call transfer method according to the above supplementary note, wherein:

[Appendix 29]
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The determination unit determines a speaker and a microphone to be used as the second call unit based on the estimated distance with reference to table information in which a plurality of threshold values are recorded. Transfer method.

[Appendix 30]
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
The call transfer method according to the above supplementary note, wherein the acoustic operation process is selected and performed in correspondence with the distance in correspondence with the selected call means.

  The present invention can be applied to many telephone apparatuses such as a subscriber telephone apparatus, a multi-function button telephone apparatus, and an IP telephone apparatus.

DESCRIPTION OF SYMBOLS 10 Telephone apparatus 11 IP telephone function part 12 Handset 13 Speaker and microphone 14 Short distance radio | wireless part 15 Distance estimation part 16 Judgment part 17 Mounting surface of a telephone apparatus 18 Function button 19 Short distance radio | wireless button 20 Portable terminal

Claims (10)

Short-range wireless means capable of connecting to a communication terminal;
Distance estimation means for estimating a distance between the communication terminal and the device from electric field intensity;
A first calling means provided as a handset;
A second call means comprising a speaker and a microphone used for a call not via the handset;
Determining means for determining whether to provide a user with a calling environment using either the first calling means or the second calling means based on the estimated distance;
Including
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
A telephone device that performs determination based on a value obtained by the distance estimating unit and provides a user with a calling environment using either the first calling unit or the second calling unit. . The determination means includes
2. The telephone device according to claim 1, wherein a speaker volume when using the second call means is adjusted based on the estimated distance. The determination means includes
The telephone apparatus according to claim 1 or 2, wherein a microphone sensitivity when using the second call means is adjusted based on the estimated distance. The second call means can be composed of one or more speakers and one or more microphones,
4. The telephone device according to claim 1, wherein the determination unit determines a speaker and a microphone to be used as the second call unit based on the estimated distance. 5.   The determination means selects a microphone of the communication terminal connected via the short-range wireless means as the second call means based on the estimated distance, and maintains the call state. 5. The telephone device according to claim 4, wherein   The distance estimation unit estimates the distance between the communication terminal and the device itself using the obtained transmission power value together with the electric field strength. Telephone equipment.   5. The determination unit according to claim 4, wherein the determination unit selects a speaker and a microphone included in the slave unit of the own device as the second call unit based on the estimated distance, and maintains the call state. The telephone device described. Having a place where the communication terminal can be placed on the main body,
Call transfer requesting means for accepting an operation to a predetermined input means, connecting to a communication terminal that can be connected via the short-range wireless means, and performing processing for receiving transfer of a call for which a call has been set Have
When the call transfer request means detects a predetermined distance to the extent that the communication terminal is placed at a place where the call can be placed, the call transfer request means omits an operation to the predetermined input means and receives a call transfer. The telephone apparatus according to claim 1, wherein the telephone apparatus is performed.   The telephone device according to any one of claims 1 to 8, wherein the telephone device is a general subscriber telephone or an IP telephone. For short-distance wireless means that can be connected to a communication terminal, distance estimation means for estimating the distance between the communication terminal and its own device from electric field strength, first call means provided as a handset, and for calls not via the handset Whether to provide the user with a call environment using either the first call means or the second call means based on the estimated distance and the second call means comprising a speaker and a microphone to be used Using a telephone device having a determination means for determining,
When receiving a call transfer by connecting to a communication terminal via the short-range wireless means,
Connected to the communication terminal via short-range wireless means;
Based on the value obtained by the distance estimating means, it is determined whether to use the first calling means or the second calling means,
A call transfer method comprising: providing a call environment to a user using a determined call means.

Images