JP2008205910A - Extension phone system and relay method of extension phone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technology for reducing cost necessary for installing a plurality of extension phones in an extension phone system using a main unit. <P>SOLUTION: A radio AP 3 and a master unit 21 are connected to an extension network 4 and a slave unit 22 is connected to the extension network 4 via the radio AP 3. Then, the master unit 21 is caused to manage correspondence relationship with the slave unit 22 in parent-child relationship with the self-unit 21 and a voice path to the self-master unit 21 is relayed to the slave unit 22 in the parent-child relationship with the self-unit 21 via the radio AP 3 if necessary. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technology of a parent-child phone system using a main device, and more particularly to a technology of a parent-child phone system suitable for installing a plurality of parent-child phones.

  Patent Document 1 discloses a curled cordless telephone system that operates in three modes. The curl cordless telephone system includes a mode in which the slave unit is connected to the master unit by a curl cord and operates as a handset of the master unit, a mode in which the slave unit is wirelessly connected to the master unit and operates as a master / slave phone, and the slave unit Has a mode of connecting to a private branch exchange via a multi-zone cordless connection device for offices (self-operated BS) and operating as a multi-zone cordless slave unit for offices.

JP 2002-101439 A

  In the curl cordless telephone system described in Patent Document 1, in order to operate the slave unit as a master-slave phone, both the master unit and the slave unit are equipped with wireless interfaces, and the slave unit is connected to the master unit wirelessly. . For this reason, two wireless interfaces are required for each set of parent-child phones. If a plurality of parent / child phones are installed, a wireless interface twice as many as the number of installed phones is required, which increases costs.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technology capable of reducing the cost when a plurality of parent-child telephones are installed in a parent-child telephone system using a main device. There is.

  In order to solve the above-described problems, in the present invention, a wireless access point and an extension telephone master are connected to an extension, and an extension telephone slave is connected to the extension via the wireless access point. Then, let the extension telephone master unit manage the correspondence relationship of the extension telephone slave unit that has a parent-child relationship with the own extension telephone master unit, and if necessary, the voice path to the extension telephone master unit via the wireless access point And relay to the extension telephone slave unit having a parent-child relationship with the own extension telephone master unit.

For example, the present invention provides a main unit that accommodates external lines and internal lines, at least one extension telephone master unit connected to the extension, at least one extension telephone slave unit, and wireless access connected to the extension A parent-child phone system having a point,
The extension telephone cordless handset is
Connected to the extension via the wireless access point,
The extension telephone base unit is
A parent-child relationship storage means for storing information on the extension telephone slave unit in a parent-child relationship with the own extension telephone master unit;
Voice path relay means for referring to the parent-child relationship storage means and relaying the voice path to the extension telephone master unit via the wireless access point to the extension telephone slave unit having a parent-child relationship with the extension telephone master unit;
When a change in a predetermined state occurs in the extension telephone master unit or the extension telephone slave unit in a parent-child relationship with the extension telephone master unit, or when a predetermined operation is performed, Control means for instructing the voice route relay means to relay the voice route to the extension telephone slave unit to the own extension telephone master unit.

  According to the present invention, it is not necessary for the extension telephone master unit to have a wireless interface for wireless communication with the extension telephone slave unit. Therefore, it is possible to reduce the cost when a plurality of parent / child phones are installed.

  Embodiments of the present invention will be described below.

  FIG. 1 is a schematic configuration diagram of a parent-child telephone system to which an embodiment of the present invention is applied.

  As shown in the figure, the parent-child telephone system according to the present embodiment includes a main apparatus 1 that accommodates an external network (for example, WAN) 5 and an internal network (for example, LAN) 4, and a wireless AP (access point) connected to the internal network 4. ) 3 and at least one set of parent-child phone 2.

  The main device 1 relays voice paths between the external line network 5 and the parent / child phone 2 (parent device 21) and between the parent / child phone 2 (parent device 21) and the parent / child phone 2 (parent device 21).

  The parent / child phone 2 includes a parent device 21 connected to the extension network 4 and a child device 22 configured to be placed on the parent device 21. The subunit | mobile_unit 22 has a wireless communication function, and is connected to the extension network 4 via wireless AP3. The parent device 21 manages the child device 22 that has a parent-child relationship with the own device 21. In addition, the parent device 21 changes when the predetermined state of the own device 21 and the child device 22 that has a parent-child relationship with the own device 21 changes, or when the child device 22 has a parent-child relationship with the own device 21 and the own device 21. When a predetermined operation is performed on at least one of the above, the voice path to the own device 21 (parent-child phone 2) is relayed to the child device 22 having a parent-child relationship with the own device 21 via the wireless AP 3.

  Next, each device constituting the parent-child phone system of the present embodiment will be described.

  First, the main device 1 will be described. FIG. 2 is a schematic configuration diagram of the main device 1.

  As shown in the figure, the main device 1 includes an external IF unit 11, an internal IF unit 12, a communication control unit 13, a GW unit 14, a router unit 15, a call control unit 16, and a station data storage unit 17. The main control unit 18.

  The external line IF unit 11 is an interface for connecting to the external network 5.

  The extension IF unit 12 is an interface for connecting to the extension network 4.

  The communication control unit 13 performs processing (error detection, error correction, packet analysis, etc.) necessary for transmitting / receiving communication packets to / from the external network 5 and the internal network 4.

  The GW unit 14 is a gateway that relays between the external network 5 and the internal network 4.

  The router unit 15 performs communication packet routing.

  The call control unit 16 performs call control processing according to a call control protocol such as SIP.

  The station data storage unit 17 stores station data. The station data includes, for each parent / child phone 2, a telephone number assigned to the parent / child phone 2 and address information (IP address, etc.) of the parent device 21 of the parent / child phone 2.

  And the main control part 18 controls each part 11-17 of the independent apparatus 1 centralizedly.

  Specifically, when the main control unit 18 receives call data from the external line network 5 via the external line IF unit 11, the communication control unit 13, the router unit 15, and the GW unit 14, the main control unit 18 refers to the station data storage unit 17. Then, the address information of the parent device 21 of the parent-child phone 2 to which the called number of the call data is assigned is acquired. Then, the call data and the acquired address information are passed to the call control unit 16. In response to this, the call control unit 16 performs incoming processing in cooperation with the main control unit 18, and establishes a voice path (call path) between the base unit 21 specified by the address information and the call data source. Set.

  When the main control unit 18 receives call data from the base unit 21 via the extension IF unit 12, the communication control unit 13, the router unit 15, and the GW unit 14, the main control unit 18 passes this call data to the call control unit 16. . In response to this, the call control unit 16 performs a calling process in cooperation with the main control unit 18, and sets a voice path between the parent device 21 and the destination of the call data.

  Next, the wireless AP 3 will be described. FIG. 3 is a schematic configuration diagram of the wireless AP 3.

  As shown in the figure, the wireless AP 3 includes a wireless IF unit 31, an extension IF unit 32, a communication control unit 33, a child device management unit 34, a child device information storage unit 35, and a main control unit 36. .

  The wireless IF unit 31 is an interface for connecting to a wireless network.

  The extension IF unit 32 is an interface for connecting to the extension network 4.

  The communication control unit 33 performs processing (error detection, error correction, packet analysis, etc.) necessary for transmitting and receiving communication packets to and from the wireless network and the extension network 4.

  The handset management unit 34 manages the handset 22 within the range of the own wireless AP 3. Specifically, the beacon is broadcast to the wireless network via the communication control unit 33 and the wireless IF unit 31, and the management including the slave unit ID of the slave unit 22 transmitted by the slave unit 22 that has received the beacon is transmitted. Data is received via the wireless IF unit 31 and the communication control unit 33. Then, the child device ID included in the received management data is registered in the child device information storage unit 35 as the child device ID of the child device 22 within the range of the own wireless AP 3. Further, the slave unit ID not included in the received management data is deleted from the slave unit information storage unit 35 as the slave unit ID of the slave unit 22 that is out of the range of the own wireless AP 3.

  The main control unit 36 comprehensively controls the units 31 to 35 of the own wireless AP 3.

  Specifically, in cooperation with the wireless IF unit 31, the extension IF unit 32, and the communication control unit 33, relaying is performed between the wireless network and the extension network 4. Further, in cooperation with the slave unit management unit 34, the slave unit ID of the slave unit 22 within the range of the own wireless AP 3 is registered in the slave unit information storage unit 35, and the slave unit 22 that is out of the range of the own wireless AP 3 is registered. The slave unit ID is deleted from the slave unit information storage unit 35. Further, the main control unit 36 returns the status of the slave unit 22 that is in a parent-child relationship with the master unit 21 (whether it is out of range) in response to the slave unit status inquiry from the master unit 21. That is, when receiving the slave unit status inquiry including the slave unit ID from the master unit 21, the main control unit 36 checks whether or not this slave unit ID is registered in the slave unit information storage unit 35. If registered, the slave unit status data indicating that the slave unit 22 specified by the slave unit ID is within the range of the wireless AP 3 is generated. On the other hand, if not registered, handset status data indicating that the handset 22 specified by the handset ID is out of the range of the wireless AP 3 is generated. And the produced | generated subunit | mobile_unit status data is transmitted to the main | base station 21 which is a transmission origin of a subunit | mobile_unit status inquiry.

  Next, the master unit 21 will be described. FIG. 4 is a schematic configuration diagram of the parent device 21.

  As shown in the figure, the base unit 21 includes an extension IF unit 2101, a communication control unit 2102, a call control unit 2103, input keys such as a call button (hands-free button), dial keys, function keys, and an LCD display. An operation panel 2104 provided with an operation unit, an operation control unit 2105, a hands-free unit 2106 provided with a microphone and a speaker, an audio control unit 2107, a slave unit IF unit 2108, a power supply control unit 2109, and a parent-child information storage unit 2110 and a main control unit 2111.

  The extension IF unit 2101 is an interface for connecting to the extension network 4.

  The communication control unit 2102 performs processing (error detection, error correction, packet analysis, etc.) necessary for sending and receiving communication packets with the extension network 4.

  The call control unit 2103 performs call control processing according to a call control protocol such as SIP.

  The operation control unit 2105 receives a user operation or displays information via the operation panel 2104.

  The voice control unit 2107 controls voice input / output with respect to the handsfree unit 2106.

  The slave unit IF unit 2108 is an interface for connecting to the slave unit 22 when the slave unit 22 is placed on the master unit 21. The slave unit IF unit 2108 includes a power supply terminal for charging the slave unit 22, a communication terminal for acquiring the slave unit ID from the slave unit 22, and a sensor for detecting the placement state of the slave unit 22 Have.

  The power control unit 2109 controls charging of the slave unit 22 connected to the slave unit IF unit 2108. Further, the mounting state of the slave unit 22 is detected using a sensor provided in the slave unit IF unit 2108. Furthermore, the power control unit 2109 acquires the slave unit ID of the slave unit 22 connected to the slave unit IF unit 2108.

  The parent-child information storage unit 2110 stores parent-child information of the parent-child phone 2. FIG. 5 is a diagram schematically showing the parent-child information storage unit 2110. As shown in the figure, the parent-child information storage unit 2110 includes a telephone number 2111 assigned to the parent-child phone 2 including the own device 21, a parent device ID 2112 that is identification information of the own device 21, and a child that has a parent-child relationship with the own device 21. A slave unit ID 2113 that is identification information of the slave unit 22, a slave unit state 2114 that indicates whether or not the slave unit 22 is within the range of the wireless AP 3, and whether or not the slave unit 22 is placed on the own unit 21 The mounting state 2115 is registered.

  The main control unit 2111 comprehensively controls each unit 2101 to 2110 of the own device 21.

  FIG. 6 is a flowchart for explaining the operation of base unit 21.

  When the main control unit 2111 receives an incoming call notification from the main apparatus 1 via the extension IF unit 2101 and the communication control unit 2102 (YES in S2101), the main control unit 2111 passes the incoming call notification to the call control unit 2103. In response to this, the call control unit 2103 performs incoming call processing (to be described later) in cooperation with the main control unit 2111 (S2102).

  When the main control unit 2111 detects that the call button is “ON” via the operation panel 2104 and the operation control unit 2105 (YES in S2103), the main control unit 2111 passes a call instruction to the call control unit 2103. In response to this, the call control unit 2103 performs a calling process described later in cooperation with the main control unit 2111 (S2104).

  Further, when the main control unit 2111 receives a call notification from the slave unit 22 having a parent-child relationship with the own unit 21 via the extension IF unit 2101 and the communication control unit 2102 (YES in S2105), The relay of data transmission / reception between the main devices 1 is started, and the call packet received from the handset 22 is transferred to the main device 1 (S2106).

  Further, the main control unit 2111 receives a switching notification from the slave unit 22 during the relay process of the voice path from the main unit 1 to the slave unit 22 having a parent-child relationship with the own unit 21 (YES in S2107). Then, the voice route relay process is stopped, and the voice route from the main device 1 is terminated by the own device 21. Then, a hands-free call is started (S2108). As a result, the call packet sent from the main apparatus 1 is received by the extension IF unit 2101, and voice data is extracted by the communication control unit 2102. The audio data is output from the speaker of the hands-free unit 2106 by the audio control unit 2107. The voice input to the microphone of the hands-free unit 2106 is converted into voice data by the voice control unit 2107. Then, the voice data is stored in a call packet by the communication control unit 2102 and sent from the extension IF unit 2101 to the main apparatus 1.

  When the main control unit 2111 detects that the placement state of the slave unit 22 has changed via the slave unit IF unit 2108 and the power source control unit 2109 (YES in S2109), the main control unit 2111 performs the next parent-child information update process. This is performed (S2110).

  That is, as shown in FIG. 7, when the placement state of the slave unit 22 changes from “non-placed” to “placed” (YES in S21101), the main control unit 2110 passes through the power supply control unit 2109. The ID request is transmitted (S21102). Then, the slave unit ID is acquired from the slave unit 22 (S21103), and it is checked whether or not the slave unit ID matches the slave unit ID 2113 registered in the parent-child information storage unit 2110 (S21104). If they match (YES in S21104), it is determined that the child device 22 having a parent-child relationship with the own device 21 is placed, and the placement state 2115 of the parent-child information storage unit 2110 is changed from “not placed” to “placed”. (S21105). Further, when the placement state of the child device 22 changes from “placement” to “non-placement” (NO in S21101), if the placement state 2115 of the parent-child information storage unit 2110 is “placement” ( This is changed to “non-placement” (S21107).

  FIG. 8 is a flowchart for explaining the incoming call process (S2102 in FIG. 6) of base unit 21.

  First, the call control unit 2103 inquires of the main control unit 2111 about the placement state of the slave unit 22. In response to this, the main control unit 2111 confirms the placement state 2115 from the parent-child information storage unit 2110. When the placement state 2115 is “placement” (“placement” in S210201), the process proceeds to S210202. On the other hand, if the placement state 2115 is “not placed” (“not placed” in S210201), the process proceeds to S210210.

  In step S210202, the call control unit 2103 sends ACK data for the incoming call notification to the main apparatus 1 via the communication control unit 2102 and the extension IF unit 2101.

  Next, the call control unit 2103 receives ring tone data and incoming call display data for displaying the incoming call from the main apparatus 1 via the extension IF unit 2101 and the communication control unit 2102. Wait for. Then, based on the incoming call tone data, the incoming ringing is controlled using a sound source (not shown) and the incoming call is displayed on the LCD of the operation panel 2104 based on the incoming call display data (S210203). Then, the call control unit 2103 waits for the call button to be “ON” or for the placement state of the handset 22 to change from “placed” to “not placed”.

  When the main control unit 2111 detects that the call button on the operation panel 2104 is “ON” via the operation control unit 2105 (YES in S210204), the main control unit 2111 notifies the call control unit 2103 of the call button “ON”. . In response to this, the call control unit 2103 stops ringing (S210205). Then, a voice path is set up with the other party via the main device 1, and a hands-free call is started (S210206). As a result, the call packet sent from the call partner via the main apparatus 1 is received by the extension IF unit 2101, and the voice data is extracted by the communication control unit 2102. The audio data is output from the speaker of the hands-free unit 2106 by the audio control unit 2107. The voice input to the microphone of the hands-free unit 2106 is converted into voice data by the voice control unit 2107. Then, the voice data is stored in a call packet by the communication control unit 2102, and is sent from the extension IF unit 2101 to the call partner via the main device 1.

  Further, when the main control unit 2111 detects that the slave unit 22 placed on the own unit 21 has become “not placed” via the power source control unit 2109 (YES in S210207), that fact. To the call control unit 2103, and the placement state 2115 of the parent-child information storage unit 2110 is changed from “placed” to “not placed”. In response to this, the call control unit 2103 stops ringing the incoming call (S210208).

  In addition, the call control unit 2103 sets a voice path with the other party via the main device 1, and transmits to the child device 22 specified by the child device ID 2113 of the parent-child information storage unit 2110 via the wireless AP 3. Send a switch notification. Then, the relay of the set voice path to the child device 22 is started (S210209). As a result, the call packet sent from the call partner via the main device 1 is transferred to the child device 22 having a parent-child relationship with the own device 21 via the wireless AP 3. Further, the call packet sent from the child device 22 having a parent-child relationship with the own device 21 is transferred to the call partner via the main device 1.

  In step S210210, the main control unit 2111 refers to the parent-child information storage unit 2110, generates a child device status inquiry including the child device ID 2113, and transmits the inquiry to the wireless AP 3. And the subunit | mobile_unit state 2114 of the parent-child information storage part 2110 is updated using the subunit | mobile_unit status received from wireless AP3. Next, the main control unit 2111 checks the slave unit state 2114 of the parent-child information storage unit 2110. If the handset state 2114 is “within range” (“range” in S210211), the process proceeds to S210212, and if it is “out of range” (“out of range” in S21021), the process proceeds to S210202.

  In step S <b> 210212, the main control unit 2111 starts relaying data transmission / reception between the child device 22 and the main device 1 that are in a parent-child relationship with the own device 21. As a result, the ring tone data and the incoming call display data sent from the main apparatus 1 via the extension IF unit 2101 and the communication control unit 2102 are transmitted via the wireless AP 3 to the child device 22 having a parent-child relationship with the own device 21. Forwarded to Further, the call control unit 2103 displays the incoming call display data on the display unit of the operation panel 2104 via the operation control unit 2105 based on the incoming call display data (S210213).

  FIG. 9 is a flowchart for explaining the transmission process (S2104 in FIG. 6) of base unit 21.

  First, the call control unit 2103 sends an off-hook signal with a telephone number assigned to the parent / child phone 2 including the own device 21 to the main apparatus 1 via the communication control unit 2102 and the extension IF unit 2101 (S210401). .

  Next, the call control unit 2103 accepts the telephone number of the call partner input to the dial key of the operation panel 2104 via the operation control unit 2105, and receives the telephone number of the other party from the communication control unit 2102 and the extension IF unit 2101. 1, the control data indicating the telephone number is transmitted (S21402). Then, the call control unit 2103 outputs the ringing tone data received from the main apparatus 1 via the extension IF unit 2101 and the communication control unit 2102 from the speaker of the handsfree unit 2106 via the voice control unit 2107 (S210403). ).

  When the main control unit 2111 detects that the slave unit 22 placed on the own unit 21 has changed from “placed” to “not placed” via the power source control unit 2109 (YES in S210404). ), The placement state 2115 of the parent-child information storage unit 2110 is confirmed.

  If the placement state 2115 is “placement” (YES in S210405), the call control unit 2103 is notified of this, and the placement state 2115 of the parent-child information storage unit 2110 is changed from “placement” to “non-placement”. (S210406). In response to this, the call control unit 2103 sends a switching notification to the slave unit 22 specified by the slave unit ID 2113 of the parent-child information storage unit 2110 via the wireless AP 3. Then, relay of data transmission / reception between the slave unit 22 and the main apparatus 1 is started (S210407). As a result, the ringing tone data sent from the main device 1 is transferred to the child device 22 having a parent-child relationship with the own device 21.

  If the placement state 2115 is “non-placement” (NO in S210405), the main control unit 2111 waits for a connection response from the main apparatus 1 (S210409).

  When the main control unit 2111 receives a connection response from the main apparatus 1 via the extension IF unit 2111 and the communication control unit 2102 (YES in S210408 or S210409), the main control unit 2111 notifies the call control unit 2103 of this. In response to this, the call control unit 2103 sets a voice path with the call partner via the main device 1 and starts a hands-free call (S210410). As a result, the call packet sent from the call partner via the main apparatus 1 is received by the extension IF unit 2101, and the voice data is extracted by the communication control unit 2102. The audio data is output from the speaker of the hands-free unit 2106 by the audio control unit 2107. The voice input to the microphone of the hands-free unit 2106 is converted into voice data by the voice control unit 2107. Then, the voice data is stored in a call packet by the communication control unit 2102, and is sent from the extension IF unit 2101 to the call partner via the main device 1.

  Next, the slave unit 22 will be described. FIG. 10 is a schematic configuration diagram of the slave unit 22.

  As shown in the figure, the handset 22 includes an operation unit including a wireless IF unit 2201, a communication control unit 2202, a call control unit 2203, input keys such as a call button, dial keys, and function keys, and a display unit such as an LCD. Panel 2204, operation control unit 2205, handset unit 2206 having a microphone and a speaker, voice control unit 2207, base unit IF unit 2208, power supply control unit 2209, parent-child information storage unit 2210, main control unit 2211.

  The wireless IF unit 2201 is an interface for connecting to a wireless network.

  The communication control unit 2202 performs processing (error detection, error correction, packet analysis, etc.) necessary for transmitting and receiving communication packets to and from the wireless network.

  The call control unit 2203 performs call control processing according to a call control protocol such as SIP.

  The operation control 2205 accepts user operations and displays information via the operation panel 2204.

  The voice control unit 2207 controls voice input / output with respect to the handset unit 2206.

  The base unit IF unit 2208 is an interface for connecting to the base unit 21 when the base unit 22 is placed on the base unit 21. Base unit IF unit 2208 has a power input terminal for inputting power from base unit 21 and a communication terminal for notifying base unit 21 of the slave unit ID of host unit 22.

  The power control unit 2209 controls the storage of electric power provided from the parent device 21 connected to the parent device IF unit 2208. In addition, the master unit 21 connected to the master unit IF unit 2208 is notified of the slave unit ID of the host unit 22.

  The parent-child information storage unit 2210 stores the child machine ID of the own machine 22, the parent machine ID of the parent machine 21 having a parent-child relationship with the own machine 22, and the telephone number assigned to the parent-child phone 2 including the own machine 22. ing.

  The main control unit 2211 comprehensively controls each unit 2201 to 2210 of the slave unit 22.

  FIG. 11 is a flowchart for explaining the operation of the slave unit 22.

  When the main control unit 2211 receives an incoming notification from the main apparatus 1 via the base unit 21 via the wireless IF unit 2201 and the communication control unit 2202 (YES in S2201), it passes this incoming notification to the call control unit 2203. . In response to this, the call control unit 2203 performs incoming processing described later in cooperation with the main control unit 2211 (S2202).

  When the main control unit 2211 detects that the call button is “ON” via the operation panel 2204 and the operation control unit 2205 (YES in S2203), the main control unit 2211 passes a call instruction to the call control unit 2203. In response to this, the call control unit 2203 performs outgoing processing described later in cooperation with the main control unit 2211 (S2204).

  Further, when the main control unit 2211 receives a switching notification from the parent device 21 having a parent-child relationship with the own device 22 (YES in S2205), the main control unit 2211 starts a call on the call path by transmitting / receiving data to / from the parent device 21. (S2206). As a result, the call packet sent from the main device 1 is received by the wireless IF unit 2201 via the master unit 21 and the wireless AP 3, and the voice data is extracted by the communication control unit 2202. Then, this audio data is output from the speaker of the handset unit 2206 by the audio control unit 2207. In addition, the voice input to the microphone of the handset unit 2206 is converted into voice data by the voice control unit 2207. Then, the voice data is stored in a call packet by the communication control unit 2202, and is transmitted from the wireless IF unit 2201 to the main apparatus 1 via the wireless AP 3 and the parent device 21.

  When the main control unit 2211 receives an ID request from the parent device 21 on which the own device 22 is placed via the parent device IF unit 2208 and the power supply control unit 2209 (YES in S2207), 21 transmits the child device ID registered in advance in the parent-child information storage unit 2210 via the parent device IF unit 2208 (S2208).

  FIG. 12 is a flowchart for explaining the incoming call processing (S2202 in FIG. 11) of the handset 22.

  First, the call control unit 2203 sends ACK data for the incoming call notification to the main apparatus 1 via the wireless AP 3 and the base unit 22 via the communication control unit 2202 and the wireless IF unit 2201 (S220201).

  Next, the call control unit 2203 receives incoming call display data and incoming call display data from the main device 1 via the base unit 21 and the wireless AP 3 via the wireless IF unit 2201 and the communication control unit 2202. Wait for you to be sent. Then, based on the incoming call tone data, the incoming ringing is controlled using a sound source (not shown) and the incoming call is displayed using the LCD of the operation panel 2204 based on the incoming call display data (S220202). Then, the call control unit 2203 waits for the call button to be “ON” or for the switch button (function key) for switching the call from the child device 22 to the parent device 21 to be “ON”.

  When the main control unit 2211 detects that the call button on the operation panel 2204 is “ON” via the operation control unit 2205 (YES in S220203), the main control unit 2211 notifies the call control unit 2203 of the call button “ON”. . In response, the call control unit 2203 stops ringing (S220204) and starts a voice call (S220205). As a result, the call packet sent from the main apparatus 1 is received by the wireless IF unit 2201 via the master unit 21 and the wireless AP 3, and voice data is extracted by the communication control unit 2202. Then, this audio data is output from the speaker of the handset unit 2206 by the audio control unit 2207. In addition, the voice input to the microphone of the handset unit 2206 is converted into voice data by the voice control unit 2207. Then, the voice data is stored in a call packet by the communication control unit 2202, and is transmitted from the wireless IF unit 2201 to the main apparatus 1 via the wireless AP 3 and the parent device 21.

  Further, when the main control unit 2211 detects that the switching button of the operation panel 2204 is “ON” via the operation control unit 2205 (YES in S220206), the main control unit 2211 sends the switching button “ON” to the call control unit 2203. Notice. In response to this, the call control unit 2203 stops ringing the incoming call (S220207). Further, the call control unit 2203 sends a switching notification to the parent device 21 specified by the parent device ID in the parent-child information storage unit 2210 (S220208). As a result, the incoming call processing is taken over by the parent device 21.

  FIG. 13 is a flowchart for explaining the calling process (S2204 in FIG. 11) of the handset 22.

  First, the call control unit 2203 assigns the parent device 21 including the own device 22 to the parent device 21 specified by the parent device ID of the parent-child information storage unit 2210 via the communication control unit 2202 and the wireless IF unit 2201. An off-hook signal with the received telephone number is transmitted (S220401). This off-hook signal is relayed to the main apparatus 1 by the master unit 21.

  Next, the call control unit 2203 accepts the telephone number of the call partner input to the dial key of the operation panel 2204 via the operation control unit 2205, and receives the telephone number of the other party via the communication control unit 2202 and the wireless IF unit 2201. The control data indicating the received telephone number is sent to 21 (S220402). This telephone number is relayed to the main apparatus 1 by the master unit 21.

  Then, the call control unit 2203 receives the ring tone data received from the main device 1 via the base unit 21 and the wireless AP 3 via the wireless IF unit 2201 and the communication control unit 2202, via the voice control unit 2207. The data is output from the speaker 2206 (S220403).

  When the main control unit 2203 receives a connection response from the main apparatus 1 via the base unit 21 and the wireless AP 3 via the wireless IF unit 2201 and the communication control unit 2202 (YES in S220404), it receives this connection control unit. 2203 is notified. In response to this, the call control unit 2203 stops the output of the ringing tone and starts a call (S220405). As a result, the call packet sent from the main apparatus 1 via the base unit 21 and the wireless AP 3 is received by the wireless IF unit 2201 and the voice data is extracted by the communication control unit 2202. Then, this audio data is output from the speaker of the handset unit 2206 by the audio control unit 2207. The voice input to the microphone of the handset unit 2206 is converted into voice data by the voice control unit 2207. The voice data is stored in a call packet by the communication control unit 2202, transmitted from the wireless IF unit 2201 to the base unit 21 via the wireless AP 3, and relayed to the main apparatus 1 by the base unit 21.

  Further, when the main control unit 2211 detects that the switching button of the operation panel 2204 is turned “ON” via the operation control unit 2205 (YES in S220406), the main control unit 2211 sends the switching button “ON” to the call control unit 2203. Notice. In response to this, the call control unit 2203 stops outputting the ringing tone (S220407). Further, the call control unit 2203 sends a switching notification to the parent device 21 specified by the parent device ID in the parent-child information storage unit 2210 (S220408). As a result, the transmission process is taken over by the parent device 21.

  Next, an example of a call by the parent-child phone system to which this embodiment is applied will be described.

  FIG. 14 is a sequence diagram for explaining an example of a call when the handset 22 makes a call when the handset 22 receives an incoming call to the base phone 2 placed on the base 21.

  When there is an incoming call from the external line network 5, the main device 1 recognizes that this incoming call is call data for the parent-child telephone 2 by the router function, gateway function, and call control function (S601). Then, the main apparatus 1 sends an incoming call notification to the parent device 21 constituting the parent-child phone 2 (S602).

  When receiving the incoming call notification from main apparatus 1, base unit 21 sends ACK data for the incoming call notification to main apparatus 1. The main apparatus 1 transfers this ACK data to the call data transmission source (gateway) (S603). After that, the main device 1 receives the ring tone data from the call data transmission source and transfers it to the parent device 21 (S604). In response to this, the base unit 21 starts ringing.

  When the parent device 21 detects that the child device 22 placed on the own device 21 has been lifted (S605), the parent device 21 refers to the parent-child information storage unit 2110. It is checked whether or not the slave unit 22 has a relationship. Then, when it is confirmed that the child device 22 has a parent-child relationship with the own device 21, a switching notification is sent to the child device 21 (S607). Also, a connection response is sent to the main apparatus 1 (S608). This connection response is transferred from the main apparatus 1 to the call data transmission source. When receiving the switching notification from the parent device 21 having a parent-child relationship with the own device 22, the child device 22 starts data transmission / reception with the main device 1 via the parent device 21. As a result, a voice path is formed between the slave unit 22 and the calling party via the master unit 21 and the main device 1 (S609).

  FIG. 15 is a sequence diagram for explaining an example of a call when the slave unit 22 is placed on the master unit 21 and is dialed by the master unit 21 to make a call and the slave unit 22 makes a call. It is.

  When the call button (hands-free button) is “ON” (S701), base unit 21 sends an off-hook signal to main apparatus 1 (S702). Thereafter, input of a destination telephone number is accepted (S703), and control data indicating the accepted destination telephone number is sent to the main apparatus 1 (S704).

  When there is an incoming call from the extension network 4, the main apparatus 1 recognizes that the incoming call is an off-hook signal and control data indicating a destination telephone number by the router function, gateway function, and call control function. Then, call data with the destination telephone number as the called number is generated and sent to the external network 5 (S705).

  Next, the main device 1 receives the ring tone data from the external network 5 and transfers it to the parent device 21 (S706). Then, base unit 21 outputs a ringing tone.

  When the parent device 21 detects that the child device 22 placed on the own device 21 has been lifted (S707), the parent device 21 refers to the parent-child information storage unit 2110. It is checked whether or not the slave unit 22 has a relationship. When it is confirmed that the slave unit 22 has a parent-child relationship with the own unit 21, a switching notification is sent to the slave unit 21 (S708). Further, the base unit 21 transfers the ringing tone data received from the main device 1 to the handset 22 (S709).

  Next, when receiving a connection response from the external network 5, the main device 1 transfers it to the parent device 21. The parent device 21 further transfers this connection response to the child device 22 (S710).

  Now, when receiving the switching notification from the parent device 21 having a parent-child relationship with the own device 22 (S708), the child device 22 starts transmission / reception of data with the main device 1 via the parent device 21. Thereby, the subunit | mobile_unit 22 outputs a ringing tone based on the ringing tone data (S709) received from the main | base station 21. FIG. Further, based on the connection response (S710) received from the parent device 21, a call is started with the call partner via the main device 1 and the parent device 21 (S711).

  The embodiment of the present invention has been described above.

  In the present embodiment, the wireless AP 3 and the parent device 21 are connected to the extension network 4 and the slave device 22 is connected to the extension network 4 through the wireless AP 3. Then, the master unit 21 manages the correspondence relationship between the slave unit 22 having a parent-child relationship with the host unit 21, and the voice path to the host unit 21 is changed to a parent-child relationship with the host unit 21 via the wireless AP 3 as necessary. Relay to a certain handset 22. Therefore, according to the present embodiment, it is not necessary for the parent device 21 to have a wireless interface for wireless communication with the child device 22. Therefore, it is possible to reduce the cost when a plurality of parent-child phones 2 are installed.

  Further, in the present embodiment, when the handset 22 is placed on the base unit 21, the audio path for the base phone 2 is connected to the base unit 21, and the handset 22 is not placed on the base unit 21. In this case, the audio path for the parent / child phone 2 is connected to the child device 22 via the parent device 21. For this reason, the connection destination of the audio path to the parent / child phone 2 is switched by placing the child device 22 on the parent device 21 or lifting the child device 22 placed on the parent device 21 from the parent device 21. Therefore, the usability of the parent-child phone 2 is improved.

  In the present embodiment, when the handset 22 is placed on the base unit 21, a ring tone is sent to the base unit 21. When the handset 22 is not placed on the base unit 21, the incoming call is received. Sound is sent to the slave unit 22 via the master unit 21. For this reason, the transmission destination of the ringtone for the parent / child phone 2 is switched by placing the child device 22 on the parent device 21 or lifting the child device 22 placed on the parent device 21 from the parent device 21. Therefore, the usability of the parent-child phone 2 is improved.

  Further, in the present embodiment, when the handset 22 placed on the base unit 21 that is ringing an incoming call is lifted, a connection response to the incoming call is sent to the base phone 2 having the base unit 21 and the handset 22. It is sent to the external network 5. For this reason, it is possible to simultaneously realize the instruction to switch the connection destination of the voice path to the parent / child phone 2 and the instruction to connect the call to the parent / child phone 2 by the same operation.

  Further, in the present embodiment, when a call is sent to the external network 5, if the handset 22 is placed on the base unit 21, the ringing tone from the external line network 5 is transferred to the base unit 21, When the child device 22 is not placed on the parent device 21, the ringing tone from the external network 5 is transferred to the child device 22 via the parent device 21. For this reason, the transmission destination of the ringing tone to the parent / child phone 2 is switched by placing the child device 22 on the parent device 21 or lifting the child device 22 placed on the parent device 21 from the parent device 21. Therefore, the usability of the parent-child phone 2 is improved.

  Further, in the present embodiment, when the slave unit 22 is out of the range of the wireless AP 3, the voice route is not relayed to the slave unit 22 regardless of the placement state of the slave unit 22 on the master unit 21. . For this reason, it is possible to prevent the call from being disconnected from the parent / child telephone 2.

  In addition, this invention is not limited to said embodiment, Many deformation | transformation are possible within the range of the summary. For example, each configuration of the main device 1, the parent / child phone 2, and the wireless AP 3 may be executed by an integrated logic IC such as an application specific integrated circuit (ASIC) or a field programmable gate array (FPGA). Alternatively, it may be executed in software by a computer such as a DSP (Digital Signal Processor) or a PC (Personal Computer).

  In the present embodiment, the case where the placement state of the slave unit 22 is detected by the sensor provided in the slave unit IF unit 2108 of the master unit 21 has been described as an example. However, the present invention is not limited to this. For example, the mounting state of the child device 22 may be detected by monitoring the charging state of the child device 22 with the power supply control unit 2109 of the parent device 21.

  FIG. 16 is a diagram for explaining a modification of the slave unit IF unit 2108, the power source control unit 2109 of the base unit 21, and the base unit IF unit 2208 of the slave unit 22, and the power source control unit 2209.

  As illustrated, in the parent device 21, the child device IF unit 2108 includes a communication terminal 21081 for acquiring a child device ID from the child device 22 and power supply terminals 21082 and 21083 for supplying power to the child device 22. And having. In addition, the power control unit 2109 measures a power supply 21091 that supplies power to the power supply terminals 21082 and 21083, a resistor 21095 inserted in the power supply line of the power supply 21091, and a current value flowing through the power supply line of the power supply 21091. It has a current meter 21093, a voltage meter 21094 that measures the voltage value between the power supply terminals 21082 and 21083, and a power supply controller 21092 that adjusts the power supplied to the power supply 21091.

  In the child device 22, the parent device IF unit 2208 is connected to the communication terminal 21081 of the parent device 21, a communication terminal 22081 for notifying the parent device 21 of the child device ID, and a power supply terminal 21082 of the parent device 21. 21, and power input terminals 22082 and 22083 for inputting power from the parent device 21. In addition, the power supply control unit 2209 includes a voltage meter 22092 that measures a voltage value between the power input terminals 22082 and 22083, and a battery 22091 that stores electric power input to the diode and the power input terminals 22082 and 22083.

  In the configuration as described above, the power supply controller 21092 controls the supply power of the power supply 21091 based on the measured values of the current meter 21093 and the voltage meter 21094, and determines the placement state of the slave unit 22 based on these measured values. To detect. When the current value of the power supply line is equal to or less than a predetermined value, it is considered that the power supply terminals 21082 and 21083 are open. Further, when the voltage value between the power supply terminals 21082 and 21083 is equal to or lower than a predetermined value, it is considered that some abnormality has occurred in the slave unit 22 and the power input terminals 22082 and 22083 of the slave unit 22 are short-circuited. In such a case, it is determined that the placement state is “non-placement”. Then, when the current value of the power supply line is within a predetermined range and the voltage value between the power supply terminals 21082 and 21083 is within the predetermined range, it is determined that the mounting state is “mounted”.

  Alternatively, the voltage value applied to the resistor 21095 is calculated using the output voltage of the power source 21091 and the measured value of the voltage meter 21094, and the measured value of the voltage meter 22092 of the slave unit 22 is acquired via the communication terminals 21081, 2081. And a mounting state is detected by comparing both. For example, the resistance value of the resistor 21095 is set so as to be larger than the resistance value between the power input terminals 22082 and 22083 of the slave unit 22, and a voltage difference corresponding to the difference between the two resistance values is applied to the resistor 21095. When it occurs between the voltage value and the measured value of the voltage meter 22092, it is determined that the placement state is “placement”. In other cases, it is determined that the placement state is “non-placement”.

  In the present embodiment, it is assumed that the placement state is detected on the base unit 21 side, but the placement state is detected on the handset unit 22 side and this is notified to the base unit 21 via the wireless network. You may make it do.

  In the present embodiment, the handset 22 may have a function as a single phone. That is, a dedicated telephone number different from the telephone number of the parent / child phone 2 is assigned to the child device 22. A changeover switch between the parent-child phone mode and the single phone mode is also provided. When the single telephone mode is selected, communication with other terminals is performed using the telephone number assigned to the own telephone, in the same way as a normal telephone. When the telephone mode is switched, the slave unit 22 notifies the master unit 21 to that effect. The parent device 21 manages the telephone mode of the child device 22 that is in a parent-child relationship with the own device 21, and handles the child device 22 that is operating in the single-phone mode in the same manner as when the child device state is “out of range”. This prevents the incoming call to the parent / child telephone 2 from being transferred to the child device 22.

  Further, in the present embodiment, the case where a wireless LAN is used for the wireless communication of the slave unit 22 has been described. However, the present invention is not limited to this. You may utilize PHS and a mobile telephone for the radio | wireless communication of the subunit | mobile_unit 22. FIG.

  Further, in the present embodiment, when the placement state of the slave unit 22 that is in a parent-child relationship with the master unit 21 is “non-placed”, the master unit 21 has a voice path with respect to the master unit 21 of this slave unit. 22 is being relayed. However, the present invention is not limited to this. When the master unit 21 always connects a slave unit 22 having a parent-child relationship with the master unit 21 via the wireless AP 3, communication data is transmitted from the own unit 21 to the slave unit 22 or from the slave unit 22 to the own unit 21. You may make it always transfer. When the placement state of the slave unit 22 that is in a parent-child relationship with the own device 21 is “non-placed”, the slave device 22 receives the communication data without performing the reception processing of the communication data. Process. On the other hand, in the case of “placement”, the slave device 22 performs communication data reception processing, and the own device 21 does not perform communication data reception processing. By doing in this way, communication control of the main | base station 21 and the subunit | mobile_unit 22 can be simplified.

FIG. 1 is a schematic configuration diagram of a parent-child telephone system to which an embodiment of the present invention is applied. FIG. 2 is a schematic configuration diagram of the main device 1. FIG. 3 is a schematic configuration diagram of the wireless AP 3. FIG. 4 is a schematic configuration diagram of the parent device 21. FIG. 5 is a diagram schematically showing the parent-child information storage unit 2110. FIG. 6 is a flowchart for explaining the operation of base unit 21. FIG. 7 is a flowchart for explaining the parent-child information update process (S2110 in FIG. 6) of the parent device 21. FIG. 8 is a flowchart for explaining the incoming call process (S2102 in FIG. 6) of base unit 21. FIG. 9 is a flowchart for explaining the transmission process (S2104 in FIG. 6) of base unit 21. FIG. 10 is a schematic configuration diagram of the slave unit 22. FIG. 11 is a flowchart for explaining the operation of the slave unit 22. FIG. 12 is a flowchart for explaining the incoming call processing (S2202 in FIG. 11) of the handset 22. FIG. 13 is a flowchart for explaining the calling process (S2204 in FIG. 11) of the handset 22. FIG. 14 is a sequence diagram for explaining an example of a call when the handset 22 makes a call when the handset 22 receives an incoming call to the base phone 2 placed on the base 21. FIG. 15 is a sequence diagram for explaining an example of a call when the slave unit 22 is placed on the master unit 21 and is dialed by the master unit 21 to make a call and the slave unit 22 makes a call. It is. FIG. 16 is a diagram for explaining a modification of the slave unit IF unit 2108, the power source control unit 2109 of the base unit 21, and the base unit IF unit 2208 and the power source control unit 2209 of the slave unit 22.

Explanation of symbols

  1: main device, 2: parent / child phone, 3: wireless AP, 4: extension network, 5: outside network, 11: outside line IF unit, 12: extension IF unit, 13: communication control unit, 14: GW unit, 15: Router unit, 16: call control unit, 17: station data storage unit, 18: main control unit, 21: master unit, 22: slave unit, 31: wireless IF unit, 32: extension IF unit, 33: communication control unit, 34: Slave unit management unit, 35: Slave unit information storage unit, 36: Main control unit, 2101: Extension IF unit, 2102: Communication control unit, 2103: Call control unit, 2104: Operation panel, 2105: Operation control unit, 2106: Hands-free unit, 2107: Voice control unit, 2108: Slave unit IF unit, 2109: Power supply control unit, 2110: Parent-child information storage unit, 2111: Main control unit, 2201: Wireless IF unit, 2202: Communication control unit, 2203: Call control unit 2204: Operation panel, 2205: operation control unit, 2206: handset, 2207: audio control unit, 2208: base unit IF unit, 2209: power supply control unit, 2210: child information storage unit, 2211: The main controller

Claims (9)

A parent and child having a main unit that accommodates an external line and an extension, at least one extension telephone master unit connected to the extension, at least one extension telephone slave unit, and a wireless access point connected to the extension A telephone system,
The extension telephone cordless handset is
Connected to the extension via the wireless access point,
The extension telephone base unit is
A parent-child relationship storage means for storing information on the extension telephone slave unit in a parent-child relationship with the own extension telephone master unit;
Voice path relay means for referring to the parent-child relationship storage means and relaying the voice path to the extension telephone master unit via the wireless access point to the extension telephone slave unit having a parent-child relationship with the extension telephone master unit;
When a change in a predetermined state occurs in the extension telephone master unit or the extension telephone slave unit in a parent-child relationship with the extension telephone master unit, or when a predetermined operation is performed, And a control means for instructing the voice route relay means to relay the voice route from the extension telephone master to the extension telephone slave. The parent-child phone system according to claim 1,
The extension telephone base unit is
A placement state detection means for detecting a placement state of the extension telephone slave unit in a parent-child relationship with the extension telephone master unit on the extension telephone master unit;
The control means includes
The information indicating the placement state detected by the placement state detection means indicates that the extension telephone slave unit having a parent-child relationship with the extension telephone master unit is not placed on the extension telephone master unit. In this case, the parent-child telephone system is characterized by instructing the voice route relay means to relay the voice route to the extension telephone slave unit. The parent-child phone system according to claim 2,
The control means includes
When a call is received, the information indicating the placement state detected by the placement state detection means described above is placed on the extension telephone master unit, the extension telephone slave unit having a parent-child relationship with the extension telephone master unit. If it indicates that the extension telephone cordless handset is not placed on the extension telephone master phone, the ring tone is sent from the acoustic means of the extension phone master phone. A parent-child telephone system characterized by sending a ring tone to the extension telephone handset. The parent-child phone system according to claim 3,
The control means includes
When the ringing tone is being output from the acoustic means of the extension telephone master unit, the extension indicating the placement status detected by the placement status detection means is in the parent-child relationship with the extension telephone master unit. A parent-child telephone system characterized in that, when a telephone handset is changed to one indicating that the telephone handset is not mounted on the own-line telephone main handset, response information for the call is sent to the external line. The parent-child phone system according to claim 2,
The control means includes
When a call is made, the information indicating the placement status detected by the placement status detection means is placed on the extension telephone master unit. In the case where the ringing tone is sent out from the sound means of the extension telephone master unit and the extension telephone slave unit is not placed on the extension telephone master unit, A parent-child telephone system characterized in that a ringing tone is sent to the extension telephone handset. The parent-child phone system according to claim 5,
The control means includes
When the ringing tone is output from the sound means of the extension telephone master unit, the information indicating the placement state detected by the placement state detection means is the extension having a parent-child relationship with the extension telephone master unit. When the telephone cordless handset is changed to one indicating that it is not placed on the extension telephone master unit, the output destination of the ringing tone is switched from the acoustic means of the extension telephone master unit to the extension telephone slave unit. Featured parent-child phone system. The parent-child phone system according to any one of claims 1 to 6,
The control means includes
Refers to the parent-child relationship storage means, and indicates the placement state detected by the placement state detection means when the extension telephone slave unit that is in a parent-child relationship with the extension telephone master unit is outside the range of the wireless access point Regardless of information, the voice path relay means is not instructed to relay the voice path to the extension telephone slave unit. The parent-child phone system according to any one of claims 1 to 7,
The extension telephone cordless handset is
In addition to the telephone number assigned to the parent / child telephone including the extension telephone handset, it has a single telephone communication means for communicating with other terminals using the telephone number assigned to the extension telephone handset. Parent-child phone system. A relay method for a parent-child telephone system using a main unit that accommodates external lines and internal lines,
Connect a wireless access point and extension telephone base unit to the extension,
An extension telephone slave unit connected to the extension telephone master unit via the wireless access point is connected to the extension;
To the extension telephone master unit,
If a change in a predetermined state occurs in the extension telephone master unit or the extension telephone slave unit in a parent-child relationship with the extension telephone master unit, or if a predetermined operation is performed, A method of relaying a parent-child phone system, comprising: relaying a voice route to an extension telephone master unit to the extension telephone slave unit having a parent-child relationship with the own extension phone master unit via the wireless access point.

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