JP2013034260A - Telephone system, radio telephone terminal, fixed telephone terminal, and telephone control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology for establishing a communication path between a call partner of a call which is originated from a radio telephone terminal or terminated at the radio telephone terminal and a fixed telephone terminal close to the radio telephone terminal, without passing through the radio telephone terminal.SOLUTION: A mobile telephone terminal 1A transmits a callback command with an ID of a call partner of a call, which is an originating call of the mobile telephone terminal 1A to a mobile telephone network 4 or an incoming call to the mobile telephone terminal 1A from the mobile telephone network 4, to a fixed telephone terminal 2A close to the mobile telephone terminal 1A by short-range radio communication 6. When receiving the callback command from the radio telephone terminal 1A through the short-range radio communication 6, the fixed telephone terminal 2A originates a call whose transmission destination is the ID given to the callback command, to a fixed telephone network 5.

Description

  The present invention relates to a technique for establishing a communication path between a call partner of a call that originates from or arrives at a wireless telephone terminal and a fixed telephone terminal in the vicinity of the wireless telephone terminal.

  Patent Document 1 discloses a technology for forming a wireless transmission path between a mobile phone terminal and a non-mobile phone terminal (fixed phone terminal) and transferring a call received at the mobile phone terminal to the non-mobile phone terminal. It is disclosed. In addition, a technique for transferring a call to another non-mobile phone terminal by the hold operation of the non-mobile phone terminal is disclosed.

JP 2005-294969 A

  In the technique described in Patent Document 1, a mobile phone terminal that receives an incoming call relays a call. For this reason, the mobile phone terminal must maintain call relay until the call at the transfer destination ends. Therefore, the user of the mobile phone terminal cannot make another call until the call at the transfer destination is terminated. In addition, it is inconvenient because it is necessary to be careful not to disconnect a call being relayed by an incorrect operation or to be disconnected by moving to a place where the mobile radio wave environment is bad. Further, since the call relay is maintained, the battery of the mobile phone terminal is consumed.

  If a transfer service provided by a mobile phone operator or the like is used, a call received at a mobile phone terminal can be transferred to another fixed phone terminal without relaying the mobile phone terminal. However, when the transfer service is used, it is necessary to notify the mobile phone network of the telephone number of the transfer destination fixed telephone terminal. Therefore, the transfer service cannot be used unless the telephone number of the transfer destination fixed telephone terminal is known.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a call partner of a call originated from or received at a wireless telephone terminal, a fixed telephone terminal in the vicinity of the wireless telephone terminal, and the like. In the meantime, it is desirable to provide a technology for establishing a communication path without going through a wireless telephone terminal.

  In order to solve the above problems, the present invention provides a wireless communication between a wireless telephone terminal connected to a wireless communication network and a fixed telephone terminal connected to a fixed telephone network connected to the wireless communication network. By (for example, short-range wireless communication), the wireless telephone terminal transmits to the fixed telephone terminal a callback instruction accompanied with the ID of the other party of the call that is transmitted to the wireless communication network or received from the wireless communication network. Then, the fixed telephone terminal sends a call to the fixed telephone network with the ID added to the callback instruction received from the wireless telephone terminal as the transmission destination.

For example, the present invention is a telephone system having a wireless telephone terminal connected to a wireless communication network and at least one fixed telephone terminal connected to a fixed telephone network connected to the wireless communication network,
The wireless telephone terminal
Fixed telephone terminal interface means for performing wireless communication with the fixed telephone terminal;
Callback instruction means for transmitting a callback instruction accompanied with the ID of the other party of a call originating from or received from the wireless communication network to the fixed telephone terminal via the fixed telephone terminal interface means; Have
The fixed telephone terminal is
Radio telephone terminal interface means for performing radio communication with the radio telephone terminal;
Callback instruction receiving means for receiving a callback instruction from the wireless telephone terminal via the wireless telephone terminal interface means;
Call back means for sending a call to the fixed telephone network with the ID added to the callback instruction received by the callback instruction receiving means as a transmission destination.

  According to the present invention, a call path between a call partner of a call originating from or received at a wireless telephone terminal and a fixed telephone terminal in the vicinity of the wireless telephone terminal without passing through the wireless telephone terminal Can be established.

FIG. 1 is a schematic diagram of a telephone system to which the first embodiment of the present invention is applied. FIG. 2 is a schematic configuration diagram of the mobile phone terminal 1 shown in FIG. FIG. 3 is a flowchart for explaining the operation related to the call transfer of the cellular phone terminal 1 shown in FIG. FIG. 4 is a schematic configuration diagram of the fixed telephone terminal 2 shown in FIG. FIG. 5 is a flowchart for explaining the operation related to the call transfer of the fixed telephone terminal 2 shown in FIG. FIG. 6 is a schematic configuration diagram of the telephone control device 3 shown in FIG. FIG. 7 is a flowchart for explaining the operation related to the call transfer of the telephone control device 3 shown in FIG. FIG. 8 is a sequence diagram for explaining operations related to call transfer in the telephone system to which the first embodiment of the present invention is applied. FIG. 9 is a schematic configuration diagram of a mobile phone terminal 1A according to a telephone system to which the second embodiment of the present invention is applied. FIG. 10 is a flowchart for explaining the operation related to the callback of the cellular phone terminal 1A shown in FIG. FIG. 11 is a schematic configuration diagram of a fixed telephone terminal 2A according to a telephone system to which the second embodiment of the present invention is applied. FIG. 12 is a flowchart for explaining the operation related to the callback of the fixed telephone terminal 2A shown in FIG. FIG. 13 is a sequence diagram for explaining the operation related to the callback of the telephone system to which the second embodiment of the present invention is applied.

  Embodiments of the present invention will be described below.

[First embodiment]
FIG. 1 is a schematic diagram of a telephone system to which the first embodiment of the present invention is applied.

  As shown in the figure, the telephone system according to the present embodiment includes a mobile phone terminal 1 connected to a mobile phone network 4 and at least one mobile phone terminal 5 connected to a fixed telephone network 5 such as a PSTN, ISDN, or IP telephone network. A fixed telephone terminal 2 and a telephone control device 3 that performs telephone exchange control of the mobile telephone network 4 and the fixed telephone network 5 are provided.

  In FIG. 1, the mobile phone terminal 1 receives a call transfer instruction from a user, or a predetermined call transfer event such as when an automatic response is made after a predetermined time has elapsed without receiving a response operation from the user for an incoming call. Occurs, the short-distance wireless communication 6 such as a wireless LAN, Bluetooth (registered trademark), wireless USB, RFID, infrared communication, etc., makes an ID (telephone number, etc.) of the fixed telephone terminal 2 from any fixed telephone terminal 2 get. Then, a transfer instruction message for a call originating from or received from the mobile phone network 4 is transmitted to the telephone control device 3 together with the acquired ID (transfer destination ID) of the fixed telephone terminal 2. In response to this, the telephone control device 3 identifies the call established between the mobile phone terminal 1 and the other party by the transfer destination ID specified in the transfer instruction message from the mobile phone terminal 1. Transfer to the fixed telephone terminal 2.

  FIG. 2 is a schematic configuration diagram of the mobile phone terminal 1 shown in FIG.

  As illustrated, the mobile phone terminal 1 includes a mobile phone network interface unit 11, a short-range wireless interface unit 12, a user interface unit 13, a mobile phone function unit 14, and a transfer control unit 15.

  The mobile phone network interface unit 11 is an interface for connecting to the mobile phone network 4.

  The short-range wireless interface unit 12 is an interface for communicating with the fixed telephone terminal 2 by the short-range wireless communication 6.

  The user interface unit 13 is an interface for a user to perform a call and various operations, and includes an operation unit such as a handset and a dial key, and a display unit such as a liquid crystal display (not shown).

  The mobile phone function unit 14 is a processing unit for realizing the original function of the mobile phone terminal 1, and includes a call control unit 141 and a call processing unit 142.

  The call control unit 141 processes outgoing and incoming calls with respect to the mobile phone network 4 and establishes a communication path with the other party via the mobile phone network interface unit 11.

  The call processing unit 142 transmits the voice input to the user interface unit 13 to the call partner via the call path established by the call control unit 141, and the voice received from the call partner via the call path. Is output to the user interface unit 13.

  The transfer control unit 15 is a processing unit for controlling the transfer to the fixed telephone terminal 2 of a call that is transmitted to or received from the mobile phone network 4, and includes a transfer destination candidate determination unit 151, a terminal ID An acquisition unit 152 and a transfer instruction unit 153 are included.

  The transfer destination candidate determination unit 151 registers the fixed telephone terminal 2 that can communicate by the short-range wireless communication 6 as a call transfer destination candidate together with the received radio wave intensity of the fixed telephone terminal 2 in the short-range wireless interface unit 12. This received radio wave intensity is used as a transfer priority.

  The terminal ID acquisition unit 152 acquires the ID of the fixed telephone terminal 2 from the fixed telephone terminal 2 that is the transfer destination candidate with the highest priority among the registered transfer candidates via the short-range wireless interface unit 12. Try. If the ID acquisition fails, the ID of the fixed telephone terminal 2 is similarly acquired for the fixed telephone terminal 2 which is the transfer destination candidate with the second highest priority after the fixed telephone terminal 2. This process is repeated in descending order of priority until the ID of any fixed telephone terminal 2 is acquired.

  The transfer instruction unit 153 transmits a call instruction message for a call that is transmitted to or received from the mobile phone network 4 together with the ID (transfer destination ID) of the fixed telephone terminal 2 acquired by the terminal ID acquisition unit 152. The data is transmitted to the telephone control device 3 via the network interface unit 11.

  FIG. 3 is a flowchart for explaining the operation related to the call transfer of the cellular phone terminal 1 shown in FIG.

  This flow is performed when a call transfer instruction during a call is received from the user, or when the call control unit 141 automatically answers after a predetermined time without receiving a response operation from the user for an incoming call. Triggered when a call transfer event occurs.

  First, the transfer destination candidate determination unit 151 transmits a fixed telephone terminal search message, which is a message for searching for the fixed telephone terminal 2 in the vicinity of the own mobile phone terminal 1, from the short-range wireless interface unit 12 by multicast (S101). ).

  Next, the transfer destination candidate determination unit 151 performs registration processing of the fixed telephone terminal 2 that is a call transfer destination candidate until a predetermined time (for example, several to several tens of seconds) elapses (S102, S103). ). That is, the transfer destination candidate determination unit 151 uses the transmission source address (MAC address or the like) of the response message received from the fixed telephone terminal 2 to the short-range wireless interface unit 12 as a call transfer destination candidate. Register with the received radio wave intensity of this response message.

  Next, the terminal ID acquisition unit 152 determines whether or not call transfer destination candidates are registered (S105). If a call transfer destination candidate is registered (YES in S105), terminal ID obtaining unit 152 selects a transfer destination candidate having the highest radio wave intensity among the registered transfer destination candidates (S106). Then, an ID transmission request with the destination address as the transmission destination is transmitted (S107).

  Thereafter, the terminal ID acquisition unit 152 does not receive the ID within a predetermined time (for example, several to tens of seconds) t from the fixed telephone terminal 2 that is the transmission destination of the ID transmission request via the short-range wireless interface unit 12. If it is determined that the forced termination operation has not been received from the user via the user interface unit 13 (NO in S113), as the transfer destination candidate of the fixed telephone terminal 2 that is the transmission destination of the ID transmission request Is deleted (S114), and the process returns to S105. If a forced termination operation has been received from the user via the user interface unit 13 (YES in S113), the terminal ID acquisition unit 152 outputs a message from the user interface unit 13 that the call has not been transferred. A predetermined transfer failure notification is made (S115), and this flow is terminated.

  On the other hand, when the terminal ID acquisition unit 152 receives an ID within the predetermined time t from the fixed telephone terminal 2 that is the transmission destination of the ID transmission request via the short-range wireless interface unit 12 (YES in S108), this ID Is transferred to the transfer instruction unit 153. In response to this, the transfer instruction unit 153 generates a transfer instruction message in which this ID is designated as the transfer destination ID (S109), and this transfer instruction message is transmitted to the telephone control device 3 via the mobile phone network interface unit 11. (S110).

  Thereafter, if the transfer instruction unit 153 does not receive a transfer disable message from the telephone control device 3 via the mobile phone network interface unit 11 within a predetermined time (NO in S111), for example, the call is transferred. A predetermined transfer success notification such as outputting a message to that effect from the user interface unit 13 is performed (S112), and this flow is terminated. On the other hand, if a transfer impossible message is received from the telephone control device 3 (YES in S111), a predetermined transfer failure notification such as a message indicating that the call transfer has not been performed is output from the user interface unit 13 is performed. (S115), this flow ends.

  If the call transfer destination candidate is not registered (NO in S105), the terminal ID acquisition unit 152 notifies the transfer instruction unit 153 to that effect. In response to this, the transfer instructing unit 153 performs a predetermined transfer failure notification such as outputting a message indicating that the call has not been transferred from the user interface unit 13 (S115), and ends this flow.

  FIG. 4 is a schematic configuration diagram of the fixed telephone terminal 2 shown in FIG.

  As shown in the drawing, the fixed telephone terminal 2 includes a fixed telephone network interface unit 21, a short-range wireless interface unit 22, a user interface unit 23, a fixed telephone function unit 24, a response message transmission unit 25, and a terminal ID notification. Part 26.

  The fixed telephone network interface unit 21 is an interface for connecting to the fixed telephone network 5.

  The short-range wireless interface unit 22 is an interface for communicating with the mobile phone terminal 1 by the short-range wireless communication 6.

  The user interface unit 23 is an interface for a user to perform a call and various operations, and includes an operation unit such as a handset and a dial key, and a display unit such as a liquid crystal display, although not illustrated.

  The fixed telephone function unit 24 is a processing unit for realizing the original function of the fixed telephone terminal 2 and includes a call control unit 241 and a call processing unit 242.

  The call control unit 241 processes incoming and outgoing calls to the fixed telephone network 5 and establishes a communication path with the other party via the fixed telephone network interface unit 21.

  The call processing unit 242 transmits the voice input to the user interface unit 23 to the call partner via the call path established by the call control unit 241 and also receives the voice received from the call partner via the call path. Output to the user interface unit 23.

  The response message transmission unit 25 transmits a response message to the fixed phone terminal search message received from the mobile phone terminal 1 to the mobile phone terminal 1 via the short-range wireless interface unit 22.

  The terminal ID notification unit 26 transmits the ID of the self-fixed telephone terminal 2 to the mobile phone terminal 1 via the short-range wireless interface unit 22.

  FIG. 5 is a flowchart for explaining the operation related to the call transfer of the fixed telephone terminal 2 shown in FIG.

  When the response message transmission unit 25 receives the fixed telephone terminal search message from the mobile phone terminal 1 via the short-range wireless interface unit 22 (YES in S201), the call control unit 241 is not in the process of calling and receiving, and the call processing If the unit 242 is not busy (NO in S202), a response message is returned to the mobile phone terminal 1 via the short-range wireless interface unit 22 (S203). On the other hand, if the call control unit 241 is processing outgoing / incoming calls or the call processing unit 242 is busy (YES in S202), it does not respond to the fixed telephone terminal search message.

  Further, when the terminal ID notification unit 26 receives an ID transmission request from the mobile phone terminal 1 via the short-range wireless interface unit 22 (YES in S204), the call control unit 241 is not in the process of making / receiving calls, and the call processing If the unit 242 is not busy (NO in S205), the ID of the self-fixed telephone terminal 2 is returned to the mobile phone terminal 1 via the short-range wireless interface unit 22 (S206). On the other hand, if the call control unit 241 is processing outgoing / incoming calls or the call processing unit 242 is busy (YES in S205), it does not respond to the ID transmission request.

  FIG. 6 is a schematic configuration diagram of the telephone control device 3 shown in FIG.

  As shown in the figure, the telephone control device 3 includes a fixed telephone network interface unit 31, a mobile phone network interface unit 32, a telephone exchange function unit 33, and a transfer control unit 34.

  The fixed telephone network interface unit 31 is an interface for connecting to the fixed telephone network 5.

  The mobile phone network interface unit 32 is an interface for connecting to the mobile phone network 4.

  The telephone exchange function unit 33 performs telephone exchange control (switching) for the fixed telephone network 5 and the mobile telephone network 4.

  In accordance with the transfer instruction message received from the mobile phone terminal 1 via the mobile phone network interface unit 32, the transfer control unit 34 designates a call established with the mobile phone terminal 1 by the transfer instruction message. The call is transferred to the fixed telephone terminal 2 specified by the transfer destination ID.

  FIG. 7 is a flowchart for explaining the operation related to the call transfer of the telephone control device 3 shown in FIG.

  This flow is started when the transfer control unit 34 receives a transfer instruction message from the mobile phone terminal 1 via the mobile phone network interface unit 32.

  First, the transfer control unit 34 specifies the transfer destination ID specified in the transfer instruction message (S301). Then, the transfer control unit 34 performs a call transfer process in cooperation with the telephone exchange function unit 33 (S302 to S307).

  That is, the transfer control unit 34, in cooperation with the telephone exchange function unit 33, sends an announcement indicating that the transfer is in progress and a holding tone to the other party of the transfer instruction message transmission source (S302), and uses the transfer destination ID. A call is made to the specified fixed telephone terminal 2 (S303).

  If there is a response from the fixed telephone terminal 2 specified by the transfer destination ID within a predetermined time (YES in S304), a call is established with the fixed telephone terminal 2 specified by the transfer destination ID. Then, the call established between the call and the call partner of the transfer instruction message transmission source is connected (S305), and the call established between the transfer instruction message transmission source is disconnected (S306). ), This flow is finished.

  On the other hand, if there is no response from the fixed telephone terminal 2 specified by the transfer destination ID within a predetermined time (NO in S304), the transfer is a message indicating that transfer has not been performed to the transfer instruction message transmission source. An impossible message is transmitted (S307), and this flow ends.

  Next, an operation example of the telephone system to which this embodiment is applied will be described.

  FIG. 8 is a sequence diagram for explaining operations related to call transfer in the telephone system to which the first embodiment of the present invention is applied.

  Here, a case where there are two fixed telephone terminals 2-1 and 2-2 in the vicinity of the mobile phone terminal 1 will be described as an example.

  When a call connection request message is received from the telephone control device 3 to the mobile phone terminal 1 via the mobile phone network 4 (S401), when the user of the mobile phone terminal 1 performs a response operation such as off-hook (S402). The mobile phone terminal 1 transmits a response message to the telephone control device 3 via the mobile phone network 4 (S403). As a result, a call is established between the mobile phone terminal 1 and the communication partner via the mobile phone network 4 and the telephone control device 3 (S404).

  When the mobile phone terminal 1 receives a transfer operation from the user (S405), the mobile phone terminal 1 multicasts a fixed phone terminal search message by the short-range wireless communication 6 (S406). In response to this, the fixed telephone terminals 2-1 and 2-2 in the vicinity of the mobile phone terminal 1 are neither in the process of making / receiving calls nor in the call. Then, a response message is transmitted to the mobile phone terminal 1 by the short-range wireless communication 6 (S407).

  Next, the cellular phone terminal 1 registers the fixed telephone terminals 2-1 and 2-2, which are transmission sources of the response message, together with the received radio wave intensity of the response message as call transfer destination candidates. Then, the cellular phone terminal 1 selects a transfer destination candidate having the highest radio wave intensity among the registered transfer destination candidates (fixed phone terminals 2-1 and 2-2). Here, it is assumed that the fixed telephone terminal 2-1 is selected. The cellular phone terminal 1 transmits an ID transmission request to the fixed telephone terminal 2-1 that is the selected transfer destination candidate by the short-range wireless communication 6 (S409).

  Here, in the fixed telephone terminal 2-1, it is assumed that the user performs a calling operation prior to receiving the ID transmission request (S408). In this case, the fixed telephone terminal 2-1 does not return the ID of the own fixed telephone terminal 2-1.

  When the predetermined time t has elapsed without receiving the ID from the fixed telephone terminal 2-1, the mobile telephone terminal 1 deletes the fixed telephone terminal 2-1 from the registered transfer destination candidates. Then, the mobile phone terminal 1 selects a transfer destination candidate having the highest radio wave intensity from the remaining transfer destination candidates. Here, since the destination candidate is only the fixed telephone terminal 2-2, the fixed telephone terminal 2-2 is selected. The cellular phone terminal 1 transmits an ID transmission request to the fixed telephone terminal 2-2 that is the selected transfer destination candidate by the short-range wireless communication 6 (S410).

  In response, the fixed telephone terminal 2-2 transmits the ID of the self-fixed telephone terminal 2-2 to the mobile telephone terminal 1 by the short-range wireless communication 6 (S411).

  Next, when the mobile phone terminal 1 receives the ID of the fixed phone terminal 2-2 from the fixed phone terminal 2-2, the mobile phone terminal 1 sends a transfer instruction message in which the ID of the fixed phone terminal 2-2 is specified as the transfer destination ID. Generate. Then, this transfer instruction message is transmitted to the telephone control device 3 via the mobile phone network 4 (S412).

  When the telephone control device 3 receives the transfer instruction message from the mobile phone terminal 1 via the mobile phone network 4, the telephone control device 3 transmits an announcement indicating that the transfer is in progress and a hold tone to the other party of the mobile phone terminal 1 (S413). ). Further, the telephone control device 3 sends a call connection request message to the fixed telephone terminal 2-2 specified by the transfer destination ID specified by the transfer instruction message via the fixed telephone network 5.

  Now, a call connection request message arrives at the fixed telephone terminal 2-2 from the telephone control device 3 via the fixed telephone network 5 (S414), and the user of the fixed telephone terminal 2-2 responds to the call by a response operation such as off-hook. (S415), the fixed telephone terminal 2-2 transmits a response message to the telephone control device 3 via the fixed telephone network 5 (S416). In response to this, the telephone control device 3 establishes a call with the fixed telephone terminal 2-2 and connects this call with a call established between the mobile telephone terminal 1 and the other party. (S417). As a result, a call is established between the fixed telephone terminal 2-2 and the communication partner via the fixed telephone network 5 and the telephone control device 3 (S418).

  The telephone control device 3 transmits a call disconnection request message to the mobile phone terminal 1 via the mobile phone network 4 to disconnect the call established with the mobile phone terminal 1 (S419).

  The first embodiment of the present invention has been described above.

  In the present embodiment, the cellular phone terminal 1 acquires the ID of the fixed telephone terminal 2 from the nearby fixed telephone terminal 2 as the call transfer destination ID by the short-range wireless communication 6. Then, the mobile phone network 4 sends a call transfer instruction message to or from the mobile phone network 4 via the mobile phone network 4 together with the acquired ID (transfer destination ID) of the fixed telephone terminal 2. And to the telephone control device 3 that performs telephone exchange control for the fixed telephone network 5. In response to this, the telephone control device 3 transfers the call from the mobile phone terminal 1 to the fixed telephone terminal 2 specified by the transfer destination ID added to the transfer instruction message.

  Therefore, according to the present embodiment, even if the user of the mobile phone terminal 1 does not know the ID of the fixed phone terminal 2 in the vicinity, the call originated from or received from the mobile phone terminal 1 A call path can be established between the other party and the nearby fixed telephone terminal 2 without passing through the mobile telephone terminal 1.

  Further, in the present embodiment, the cellular phone terminal 1 transmits an ID transmission request to the fixed telephone terminal 2 by the short-range wireless communication 6 and waits for a predetermined time t for a reply of the ID from the fixed telephone terminal 2. The operations are repeated in order from the fixed telephone terminal 2 having the highest priority until an ID is returned from any of the fixed telephone terminals 2. On the other hand, if the fixed telephone terminal 2 receives the ID transmission request from the portable telephone terminal 1 by the short-range wireless communication 6, the portable telephone terminal 1 can be used only when the own fixed telephone terminal 2 is not talking or making / receiving calls. The ID of the self-fixed telephone terminal 2 is returned.

  Therefore, according to the present embodiment, when there are a plurality of fixed telephone terminals 2 in the vicinity of the mobile telephone terminal 1, a fixed telephone terminal 2 capable of transferring a call is automatically selected from these fixed telephone terminals 2. You can search and transfer the call.

  In the present embodiment, the mobile phone terminal 1 stops the ID transmission request to the fixed phone terminal 2 by the short-range wireless communication 6 when the user forcibly terminates the operation. Can be forcibly terminated.

  In the present embodiment, the cellular phone terminal 1 determines the priority of the fixed phone terminal 2 that transmits the ID transmission request based on the radio wave intensity of the received radio wave from each fixed phone terminal 2 in the short-range wireless communication 6. Has been decided. Therefore, according to the present embodiment, a call can be transferred to the fixed telephone terminal 2 that is closest to the mobile telephone terminal 1 among the fixed telephone terminals 2 that can transfer the call.

  In the present embodiment, instead of connecting the cellular phone network 4 and the fixed telephone network 5 by the telephone control device 3, a telephone control device having a transfer service function for performing telephone exchange control on the cellular phone network 4, The mobile telephone network 4 and the fixed telephone network 5 may be connected by connecting a telephone control device having a transfer service function for performing telephone exchange control to the fixed telephone network 5 through a gateway.

[Second Embodiment]
The telephone system to which the second embodiment of the present invention is applied is different from the telephone system to which the first embodiment shown in FIG. 1 is applied in that the mobile phone terminal 1 and the fixed telephone terminal 2 are replaced by a mobile phone. The telephone terminal 1A and the fixed telephone terminal 2A are provided. Other configurations are the same as those of the telephone system to which the first embodiment is applied. In the present embodiment, the transfer control unit 34 of the telephone control device 3 may be omitted. That is, the telephone control device 3 of the present embodiment may not have a transfer service function.

  FIG. 9 is a schematic configuration diagram of a mobile phone terminal 1A according to a telephone system to which the second embodiment of the present invention is applied.

  As shown in the figure, the mobile phone terminal 1A is different from the mobile phone terminal 1 shown in FIG. 2 in that a callback control unit 16 is provided in the mobile phone terminal 1A in place of the transfer control unit 15.

  The callback control unit 16 is a processing unit for causing a call partner of a call that is transmitted to or received from the mobile phone network 4 to call back from the fixed telephone terminal 2, and includes a callback source candidate determination unit 161 and A callback instruction unit 162.

  The callback source candidate determination unit 161 registers the fixed telephone terminal 2 communicable by the short-range wireless communication 6 as a callback source candidate together with the received radio wave intensity of the fixed telephone terminal 2 in the short-range wireless interface unit 12. This received radio wave intensity is used as a priority for callback.

  The callback instruction unit 162 sends the ID of the mobile phone terminal 1A to the fixed telephone terminal 2 having the highest priority among the registered callback source candidates via the short-range wireless interface unit 12. And a callback instruction message with the ID of the other party of the mobile phone terminal 1A as the callback destination ID is transmitted. If there is no callback start notification from the fixed telephone terminal 2 within a predetermined time, the call is similarly made to the fixed telephone terminal 2 that is the second highest priority call source candidate after the fixed telephone terminal 2. Send back instruction message. This process is repeated in order until a callback start notification is received from any of the fixed telephone terminals 2.

  FIG. 10 is a flowchart for explaining the operation related to the callback of the cellular phone terminal 1A shown in FIG.

  This flow is performed when a call back operation from the user to the call partner is accepted, and when the call control unit 141 automatically responds after a predetermined time without accepting a response operation from the user for an incoming call. Triggered when a callback event occurs.

  First, the callback source candidate determination unit 161 transmits a fixed telephone terminal search message, which is a message for searching for the fixed telephone terminal 2A in the vicinity of the mobile phone terminal 1A, by multicast from the short-range wireless interface unit 12 ( S151).

  Next, the callback source candidate determination unit 161 performs registration processing of the fixed telephone terminal 2A that is a callback source candidate until a predetermined time (for example, several to several tens of seconds) T elapses (S154). S153). That is, the callback source candidate determination unit 161 uses the transmission source address (MAC address or the like) of the response message received from the fixed telephone terminal 2A to the short-range wireless interface unit 12 as a callback source candidate, and the short-range wireless interface unit 12 Register with the received radio wave intensity of this response message.

  Next, the callback instruction unit 162 determines whether a callback source candidate is registered (S155). If the callback source candidate is registered (YES in S155), the callback instructing unit 162 selects the callback source candidate having the highest radio wave intensity among the registered callback source candidates (S156). Then, the callback instruction unit 162 generates a callback instruction message with the address of the callback source candidate as the transmission destination address (S157). The callback instruction message includes the ID of the mobile phone terminal 1A, and the ID of the other party of the mobile phone terminal 1A is specified as the callback destination ID. Then, the callback instruction message is transmitted from the short-range wireless interface unit 12 to the fixed telephone terminal 2A as the callback source candidate (S158).

  Thereafter, the callback instruction unit 162 notifies the start of the callback within a predetermined time (for example, several to several tens of seconds) T from the fixed telephone terminal 2 that is the transmission destination of the callback instruction message via the short-range wireless interface unit 12. Is not received (NO in S159), and if the forced termination operation is not received from the user via the user interface unit 13 (NO in S163), the fixed telephone terminal 2 that is the transmission destination of the callback instruction message The registration as a callback source candidate is deleted (S164), and the process returns to S155. If a forced termination operation is received from the user via the user interface unit 13 (YES in S163), a predetermined callback failure notification such as a message indicating that no callback has been performed is output from the user interface unit 13. (S165) to end this flow.

  On the other hand, when the callback instruction unit 162 receives a callback start notification within a predetermined time T from the fixed telephone terminal 2 that is the transmission destination of the callback instruction message via the short-range wireless interface unit 12 (S159). YES), an announcement to the effect that a call back is executed is made in cooperation with the call processing unit 142 (S161). Then, the callback instruction unit 162 disconnects the call with the other party in cooperation with the call control unit 141 (S162), and ends this flow.

  Further, when the callback source candidate is not registered (NO in S155), the callback instruction unit 162 fails to perform a predetermined callback such as outputting a message indicating that the callback has not been performed from the user interface unit 13. Notification is made (S165), and this flow is finished.

  FIG. 11 is a schematic configuration diagram of a fixed telephone terminal 2A according to a telephone system to which the second embodiment of the present invention is applied.

  As shown in the figure, the fixed telephone terminal 2A is different from the fixed telephone terminal 2 shown in FIG. 4 in that a callback control unit 27 is provided in the fixed telephone terminal 2A in place of the terminal ID notification unit 26.

  The callback control unit 27 is a processing unit for executing a callback in accordance with an instruction from the mobile phone terminal 1 </ b> A, and includes a callback instruction receiving unit 271, a transmission instruction unit 272, and a history holding unit 273.

  The callback instruction receiving unit 271 receives a callback instruction message from the mobile phone terminal 1A via the short-range wireless interface unit 22.

  In accordance with the callback instruction message received from the mobile phone terminal 1A, the transmission instruction unit 272 cooperates with the call control unit 241 to make a call connection request with the callback destination ID specified in the callback instruction message as the transmission destination. The message is transmitted to the telephone control device 3 via the fixed telephone network interface unit 21.

  For each received callback instruction message, the history holding unit 273 includes history information (the ID of the mobile phone terminal 1A that is the transmission source of the callback instruction message, the reception date and time of the callback instruction message, the callback destination ID, the call Back execution status etc.) is stored. The history information stored in the history holding unit 273 can be output from the user interface unit 23.

  FIG. 12 is a flowchart for explaining the operation related to the callback of the fixed telephone terminal 2A shown in FIG.

  When the response message transmission unit 25 receives the fixed telephone terminal search message from the mobile phone terminal 1A via the short-range wireless interface unit 22 (YES in S251), the call control unit 241 is not in the process of making / receiving calls and the call processing If unit 242 is not busy (NO in S252), a response message is returned to mobile phone terminal 1A via short-range wireless interface unit 22 (S253). On the other hand, if call control unit 241 is processing outgoing / incoming calls or call processing unit 242 is busy (YES in S252), it does not respond to this fixed telephone terminal search message.

  Further, when the callback instruction receiving unit 271 receives the callback instruction message from the mobile phone terminal 1A via the short-range wireless interface unit 22 (YES in S254), the call control unit 241 is performing outgoing / incoming processing or call processing. If unit 242 is busy (YES in S255), it does not respond to this callback instruction message. The response message transmission unit 25 adds a new record to the history holding unit 273, and in this record, the ID of the mobile phone terminal 1A that is the transmission source of the callback instruction message, the reception date and time of the callback instruction message, the callback destination History information such as ID and callback execution status “unexecuted” is registered (S265).

  On the other hand, if the call control unit 241 is not processing outgoing / incoming calls and the call processing unit 242 is not calling (NO in S255), the user interface unit 23 outputs a ringing sound indicating a callback (S256).

  Then, the callback instruction receiving unit 271 rings if a predetermined response operation such as off-hook is performed from the user via the user interface unit 23 within a predetermined time (for example, several seconds to several tens of seconds) (YES in S257). The sound output is stopped (S258), and a callback start notification is transmitted to the mobile phone terminal 1A via the short-range wireless interface unit 22 (S259). Thereafter, the callback instruction receiving unit 271 extracts the callback destination ID from the callback instruction message (S260), and notifies the transmission instruction unit 272 of it. In response to this, the calling instruction unit 272 cooperates with the call control unit 241 to transmit a call connection request message having the callback destination ID as a transmission destination to the telephone control device 3 via the fixed telephone network interface unit 21. (S261).

  Next, if there is a response to the call from the callback destination within a predetermined time (YES in S262), the call instruction unit 272 notifies the callback instruction unit 271 to that effect. In response to this, the callback instruction unit 271 adds a new record to the history holding unit 273, and receives the ID of the mobile phone terminal 1A that is the transmission source of the callback instruction message and the reception of the callback instruction message in this record. History information such as date / time, callback destination ID, and callback execution status “executed (response received)” is registered (S265).

  If there is no response to the call from the callback destination within a predetermined time (NO in S262), the call instructing unit 272 stops the call to the callback destination (S263), and a callback instruction is sent to that effect. Inform the section 271. In response to this, the callback instruction unit 271 adds a new record to the history holding unit 273, and receives the ID of the mobile phone terminal 1A that is the transmission source of the callback instruction message and the reception of the callback instruction message in this record. History information such as date / time, callback destination ID, and callback execution status “executed (no response)” is registered (S265).

  On the other hand, when a predetermined response operation such as off-hook is not performed from the user via the user interface unit 23 within a predetermined time (NO in S257), the callback instruction receiving unit 271 only stops the output of the ringing sound. The callback start notification is not transmitted to the mobile phone terminal 1A (S264). Further, the callback instruction receiving unit 271 adds a new record to the history holding unit 273, and in this record, the ID of the mobile phone terminal 1A that is the transmission source of the callback instruction message, the reception date and time of the callback instruction message, History information such as the callback destination ID and the callback execution status “unexecuted” is registered (S265).

  Next, an operation example of the telephone system to which this embodiment is applied will be described.

  FIG. 13 is a sequence diagram for explaining the operation related to the callback of the telephone system to which the second embodiment of the present invention is applied.

  Here, a case where there are two fixed telephone terminals 2A-1 and 2A-2 in the vicinity of the mobile telephone terminal 1A will be described as an example.

  When a call connection request message arrives at the mobile phone terminal 1A from the telephone control device 3 via the mobile phone network 4 (S451), when the user of the mobile phone terminal 1A performs a response operation such as off-hook (S452). The mobile phone terminal 1A transmits a response message to the telephone control device 3 via the mobile phone network 4 (S453). As a result, a call is established between the mobile phone terminal 1A and the communication partner via the mobile phone network 4 and the telephone control device 3 (S454).

  When the mobile phone terminal 1A receives a callback (CB) operation from the user (S455), the mobile phone terminal 1A multicasts a fixed phone terminal search message by the short-range wireless communication 6 (S456). In response, the fixed telephone terminals 2A-1 and 2A-2 in the vicinity of the mobile phone terminal 1A are neither in the process of making / receiving calls nor in the call processing of the fixed telephone terminals 2A-1 and 2A-2, respectively. Then, a response message is transmitted to the mobile phone terminal 1A by the short-range wireless communication 6 (S457).

  Next, the cellular phone terminal 1A registers the fixed telephone terminals 2A-1 and 2A-2, which are transmission sources of the response message, together with the received radio wave intensity of the response message as callback source candidates. Then, the cellular phone terminal 1A selects the callback source candidate having the highest radio field intensity from the registered callback source candidates. Here, it is assumed that the fixed telephone terminal 2A-1 is selected. The cellular phone terminal 1A transmits a callback instruction message in which the other party's ID is specified as the callback destination ID to the fixed telephone terminal 2A-1 by the short-range wireless communication 6 (S459).

  Here, it is assumed that the fixed telephone terminal 2A-1 performs a transmission operation by the user prior to receiving the callback instruction message (S458). In this case, the fixed telephone terminal 2A-1 does not transmit a callback start notification to the mobile phone terminal 1A, records history information indicating that the callback execution status is “unexecuted” (S460), and ends the process. .

  When the predetermined time T has elapsed without receiving the callback start notification from the fixed telephone terminal 2A-1, the mobile phone terminal 1A deletes the fixed telephone terminal 2A-1 from the registered callback source candidates. . Then, the cellular phone terminal 1A selects a callback source candidate having the highest radio field intensity from the remaining callback source candidates. Here, since the call-back source candidate is only the fixed telephone terminal 2A-2, the fixed telephone terminal 2A-2 is selected. The cellular phone terminal 1A transmits a callback instruction message in which the ID of the other party is specified as the callback destination ID to the fixed phone terminal 2A-2 by the short-range wireless communication 6 (S461).

  In response to this, the fixed telephone terminal 2A-2 outputs a ringing sound indicating a callback (S462). When the user performs a response operation to the callback (S463), a callback start notification is transmitted to the mobile phone terminal 1A by the short-range wireless communication 6 (S464). Thereafter, the output of the ringing sound indicating the callback is stopped (S465).

  When the mobile phone terminal 1A receives the callback start notification from the fixed phone terminal 2A-2, the mobile phone terminal 1A transmits an announcement for executing the callback to the other party of the mobile phone terminal 1A (S466). Thereafter, the call established with the other party is disconnected (S467).

  On the other hand, the fixed telephone terminal 2A-2 transmits a call connection request message having the callback destination ID specified in the callback instruction message as a transmission destination to the telephone control device 3 via the fixed telephone network 5 (S468). ). Also, history information indicating that the callback execution status is “executed” is recorded (S469).

  Thereafter, when the fixed telephone terminal 2A-2 receives a response message from the callback destination via the telephone control apparatus 3 (S470), the fixed telephone terminal 2A-2 via the fixed telephone network 5 and the telephone control apparatus 3 is received. And a call destination are established (S471).

  The second embodiment of the present invention has been described above.

  In the present embodiment, the mobile phone terminal 1A transmits a callback instruction message with the call partner of the mobile phone terminal 1A as a callback destination to the nearby fixed phone terminal 2A by the short-range wireless communication 6. In response to this, the fixed telephone terminal 2A calls the call connection request message with the callback destination ID specified in the callback instruction message received from the mobile telephone terminal 1A as the transmission destination via the fixed telephone network 5. A call is sent to the control device 3.

  Therefore, according to the present embodiment, even when the user of the mobile phone terminal 1A does not know the ID of the fixed phone terminal 2A in the vicinity, the call of the call that originates from the mobile phone terminal 1A or arrives at the mobile phone terminal 1A A communication path can be established between the other party and the nearby fixed telephone terminal 2A without going through the mobile telephone terminal 1A. In addition, according to the present embodiment, even when the mobile phone network 4 does not have a call transfer service function, the call partner of the call originating from or received at the mobile phone terminal 1A and the fixed phone terminal A communication path can be established with 2A.

  In the present embodiment, the cellular phone terminal 1A transmits a callback instruction message to the fixed telephone terminal 2A by the short-range wireless communication 6, and waits for a predetermined time T from the fixed telephone terminal 2A for a callback start notification. The processing is repeated in order from the fixed telephone terminal 2A having the highest priority until a callback start notification is received from any of the fixed telephone terminals 2A. On the other hand, if the fixed telephone terminal 2A receives the callback instruction message from the mobile telephone terminal 1A by the short-range wireless communication 6, the fixed telephone terminal 2A is not in a call or in-call processing, and the user performs a response operation. Only when the call is accepted, a callback start notification is transmitted to the mobile phone terminal 1A to start the callback.

  Therefore, according to the present embodiment, when there are a plurality of fixed telephone terminals 2A in the vicinity of the mobile telephone terminal 1A, the fixed telephone terminal 2A that can be called back is automatically searched from these fixed telephone terminals 2A. Then, the fixed telephone terminal 2A can be called back.

  Further, in the present embodiment, the mobile phone terminal 1A stops the transmission of the callback instruction message to the fixed telephone terminal 2A by the short-range wireless communication 6 when the user's forced termination operation is performed. The automatic search for the telephone terminal 2A can be forcibly terminated.

  In the present embodiment, the cellular phone terminal 1A uses the priority order of the fixed telephone terminal 2A that transmits a callback instruction message based on the radio field intensity of the received radio wave from each fixed telephone terminal 2A in the short-range wireless communication 6. Is determined. Therefore, according to the present embodiment, the fixed telephone terminal 2A that is closest to the mobile telephone terminal 1A among the fixed telephone terminals 2 that can be called back can be called back.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the gist.

  For example, in each of the above-described embodiments, the case where the cellular phone terminals 1 and 1A are used as radio telephone terminals has been described as an example. However, the present invention is not limited to this. The wireless telephone terminal may be another wireless telephone terminal such as a PHS terminal or a wireless IP telephone terminal. In this case, a wireless telephone network corresponding to a wireless telephone terminal such as a PHS network or a wireless IP telephone network is used in place of the mobile telephone network 4, and the telephone control device 3 makes a telephone call to the wireless telephone network and the fixed telephone network 5. Perform exchange control.

  In the above embodiment, the cellular phone terminals 1, 1 A shown in FIGS. 2 and 9, the fixed phone terminals 2, 2 A shown in FIGS. 4 and 11, and the telephone control device 3 shown in FIG. It may be executed in hardware by an integrated logic IC such as Application Specific Integrated Circuit (FPGA) or Field Programmable Gate Array (FPGA), or may be executed by a computer such as a DSP (Digital Signal Processor). Good. 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.

  1, 1A: mobile phone terminal, 2, 2A: fixed phone terminal, 3: telephone control device, 4: mobile phone network, 5: fixed phone network, 6: near field communication, 11: mobile phone network interface unit, 12 : Near field wireless interface unit, 13: user interface unit, 14: mobile phone function unit, 15: transfer control unit, 16: callback control unit, 21: fixed telephone network interface unit, 22: near field wireless interface unit, 23 : User interface unit, 24: Fixed telephone function unit, 25: Response message transmission unit, 26: Terminal ID notification unit, 27: Callback control unit, 31: Fixed telephone network interface unit, 32: Mobile phone network interface unit, 33 : Telephone exchange function unit, 34: transfer control unit, 141: call control unit, 142: call processing unit, 151: transfer destination candidate determination unit, 52: terminal ID acquisition unit, 153: transfer instruction unit, 161: callback source candidate determination unit, 162: callback instruction unit, 241: call control unit, 242: call processing unit, 271: callback instruction reception unit, 272 : Calling instruction unit, 273: History holding unit

Claims (6)

A telephone system comprising: a wireless telephone terminal connected to a wireless communication network; and at least one fixed telephone terminal connected to a fixed telephone network connected to the wireless communication network,
The wireless telephone terminal
Fixed telephone terminal interface means for performing wireless communication with the fixed telephone terminal;
Callback instruction means for transmitting a callback instruction accompanied with the ID of the other party of a call originating from or received from the wireless communication network to the fixed telephone terminal via the fixed telephone terminal interface means; Have
The fixed telephone terminal is
Radio telephone terminal interface means for performing radio communication with the radio telephone terminal;
Callback instruction receiving means for receiving the callback instruction from the wireless telephone terminal via the wireless telephone terminal interface means;
Calling means for sending a call to the fixed telephone network that uses the ID added to the callback instruction received by the callback instruction receiving means as a transmission destination. The telephone system according to claim 1,
The callback instruction means includes
The process of transmitting the callback instruction to the fixed telephone terminal via the fixed telephone terminal interface means and waiting for a predetermined time for a response from the fixed telephone terminal, in order from the fixed telephone terminal having a higher priority, From the fixed telephone terminal, it repeats until it receives a response to execute the callback,
The callback instruction receiving means includes
If the callback instruction is received from the wireless telephone terminal via the wireless telephone terminal interface means, the callback is made to the wireless telephone terminal only when the callback execution instruction is received from the operator. Notify the response to implement,
The callback means includes
The ID added to the callback instruction received by the callback instruction receiving means only when the callback instruction receiving means notifies the wireless telephone terminal of a response to execute the callback. A telephone system characterized in that a call having a transmission destination as a destination is transmitted to the fixed telephone network. The telephone system according to claim 2,
The callback instruction means includes
The telephone system according to claim 1, wherein the priority order is determined based on a radio wave intensity of a radio wave received from each of the fixed telephone terminals in the radio telephone terminal interface means.   A wireless telephone terminal that functions as the wireless telephone terminal in the telephone system according to any one of claims 1 to 3.   A fixed telephone terminal that functions as the fixed telephone terminal in the telephone system according to any one of claims 1 to 3. A call partner of a call originating from the wireless telephone terminal to the wireless communication network or receiving from the wireless communication network to the wireless telephone terminal, and a fixed telephone terminal connected to the fixed telephone network connected to the wireless communication network A telephone control method for establishing a communication path between
Due to short-range wireless communication between the wireless telephone terminal and the fixed telephone terminal, the wireless telephone terminal is accompanied by the ID of the other party of the call that originated in the wireless communication network or received from the wireless communication network. Send callback instructions,
The telephone control method, wherein the fixed telephone terminal sends a call to the fixed telephone network with the ID added to the callback instruction received from the wireless telephone terminal as a transmission destination.

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