JP4662739B2 - Pager system and pager callback method - Google Patents

Description

  The present invention relates to a pager system having a callback function and a pager callback method.

  Currently, a pager system using a PHS (Personal Handyphone System) has become common, and is used for calling people who work in a wide range of factories, hospitals, transportation companies, etc., and transmitting messages.

  For example, a pager system used as part of a monitoring system is used in a factory production line. In the factory, there are a huge number of monitoring sensors and alarms. When an abnormality is detected, the alarm is transmitted to the production line monitoring system, and the contents are sent to a computer device such as a messaging server. It is sent to the pager using the PHS of the on-site maintenance staff in charge. After confirming the warning content displayed on the pager, the maintenance staff goes to the site response. In this way, by having a pager, the line maintenance staff can easily grasp the situation of the jurisdiction place without being at the site.

  Japanese Laid-Open Patent Publication No. 2003-319090 discloses a technique for transmitting character data directly to a pager using a PHS accommodated in an extension of a private branch exchange without using a public line (see Patent Document 1). ).

  For this reason, it is possible to send an arbitrary text message individually or in a broadcast immediately without calling charges.

  However, the conventional pager only displays the display data transmitted from the computer device, and the call function of the PHS is not utilized.

  On the other hand, in a communication system in which a plurality of slave units communicate with a master unit connected to a communication line, a method for appropriately calling back a slave unit that has called a communication destination is disclosed in Japanese Patent Laid-Open No. 2002-158766. Has been. When making a callback from the communication destination to the slave unit, the master unit records the correspondence between the slave unit and the communication destination, makes a call to the communication destination for callback, and receives an incoming call from the communication destination. The parent device is a method of calling back by specifying the called child device with reference to the correspondence. (See Patent Document 2)

However, in the conventional method, if there is no callback information indicating that a callback is made between the slave unit and the communication destination, the base unit cannot record the correspondence between the slave unit and the communication destination. The communication between the handset and the communication destination cannot be secured. For this reason, the pager cannot call back to a communication destination such as a telephone.
Japanese Patent Laid-Open No. 2003-319090 JP 2002-158766 A

  An object of the present invention is to provide a pager system that realizes bidirectional communication by providing a callback function to a pager system using PHS.

  [Means for Solving the Problems] will be described below using the numbers and symbols used in [Best Mode for Carrying Out the Invention] in parentheses. This number / symbol is added to clarify the correspondence between the description of [Claims] and the description of the best mode for carrying out the invention. It should not be used for interpreting the technical scope of the invention described in [Scope].

  The pager system according to the present invention uses a button telephone device (10) connected to a computer device (20) for creating data and a PHS accommodated in the button phone device (10) via a local antenna (30). A handset pager (40) and a telephone connected to the key telephone device (10) are provided. The key telephone device (10) is based on data input from the computer device (20), and the handset pager (40). ), A call and data are transmitted to the child device pager (40), and the called child device pager (40) rings and character information included in the received data. Is displayed. The called handset pager (40) transmits a response signal to the key telephone apparatus (10), and the button telephone apparatus (10) receiving the response signal calls the telephone based on the data. The called telephone device transmits a response signal to the key telephone device (10), and receives the response signal. The button telephone device (10) secures a transmission path between the slave pager (40) and the telephone, Communication is possible between the slave pager (40) and the telephone.

  The button telephone device (10) accommodates the extension telephone (50), is connected to the external telephone (70) via the public network (60), and receives the response signal from the slave pager (40), A call is made to the telephone number of the included extension telephone (50) or the telephone number of the external telephone (70), and between the handset pager (40) and the internal telephone (50) or the external telephone (70). The communication path is secured to enable communication.

  According to the pager system and the pager callback method of the present invention, display data is transmitted to the pager by providing a callback function to the pager using the PHS (Personal Handyphone System) accommodated in the switching apparatus. Only one-way communication and two-way communication capable of transmitting display data and communicating with an extension telephone.

  Embodiments of a pager system according to the present invention will be described below with reference to the accompanying drawings.

  The configuration and operation of the pager system will be described below with reference to FIGS.

  FIG. 1 shows an example of the configuration of an embodiment of a pager system according to the present invention. The pager system according to the present invention is accommodated in a button telephone device 10, a computer device 20 connected to the button telephone device 10, which creates character data and a telephone number of a callback destination, and is accommodated in the button telephone device 10 and used on the premises. A PHS handset pager 40, a plurality of extension telephones 50 accommodated as extension lines of the button telephone apparatus 10, and a plurality of external telephones 70 connected to the button telephone apparatus 10 via the public network 60. The

  As shown in FIG. 2, the key telephone apparatus 10 according to the present invention includes a CTI control unit 11, a CPU 12, an antenna control unit 13, an extension control unit 14, a call switch 15, a memory 16, an external line control unit 17, and a call abandonment timer 18. The information processing function of the computer device 20 and the communication function of the key telephone device 10 are integrated, and incoming call information is displayed on the screen of the computer device 20 or from data including a telephone number input from the computer device. Can make a call automatically. Further, by connecting via the local antenna 30, the PHS can be accommodated and the slave pager 40 can be used as an extension terminal. Further, it is connected to the external telephone 70 via the public network 60. In the present embodiment, the button telephone device 10 is used, but an exchange device may be used as long as the function of the present invention can be implemented.

  The CTI control unit 11 is connected to the computer device 20 and controls input / output of data and signals to / from the computer device 20. Data input from the computer device 20 is processed by the data processing unit 12b of the CPU 12 and stored in the memory 16 as a memory table. Further, a signal input to the key telephone device 10 from another terminal device such as the slave pager 40 or the extension telephone 50 or a signal generated by the CPU 12 is output to the computer device 20.

  The memory 16 stores data input from the computer device 20 as a memory table.

  An example of the memory table is shown in FIG. The memory table is displayed on the slave unit display unit 41 of the slave unit pager 40, for example, the generation time indicating the occurrence time of the failure of the device, the extension number of the slave unit pager 40 that is the call destination, the call abandonment time described later. The displayed text and the telephone number of the extension telephone 50 of the callback destination are stored in association with each other.

  The CPU 12 includes an exchange processing unit 12a, a data processing unit 12b, and a signal processing unit 12c. The CPU 12 processes signals in the key telephone device 10 and issues commands to the control units to control the entire key telephone device 10.

  The exchange processing unit 12a refers to the memory table stored in the memory 16 and performs call processing and call processing for the child pager 40, the extension telephone 50, or the external telephone 70 that is the target of the call or call. Then, a response signal and a disconnection signal from the terminal device connected to the key telephone device 10 are processed, and a transmission path is secured or abandoned through each control device in the key telephone device 10. Further, the communication switch 15 is controlled to exchange the communication line.

  Further, call abandonment processing is performed in accordance with the start and end of the call abandon timer 18, and a call is abandoned by transmitting a disconnection signal to the handset pager 40, the extension telephone 50 or the like. The call abandonment time is a waiting time from when the key telephone apparatus 10 calls the handset pager 40 until a response signal is returned from the handset pager 40, and when no response signal is received within the call abandonment time. The call is abandoned by transmitting a disconnection signal.

  The call abandon timer 18 starts measuring the call abandon time according to an instruction from the exchange processor 12a when the exchange processor 12a transmits a call signal to the child pager 40, and ends when the call abandon time has passed. Further, when a response signal is received from the slave pager 40 within the call abandonment time, the measurement of the call abandonment time is stopped by an instruction from the exchange processing unit 12a.

  The data processing unit 12 b processes data input from the computer apparatus 20 via the CTI control unit 11 and stores a memory table in the memory 16. Further, the display data in the memory table is extracted and transmitted to the called slave unit pager 40 via the antenna control unit 13.

  The signal processing unit 12c processes a response signal and a disconnection signal from each terminal device connected to the key telephone device 10, and transmits a connection status with each terminal device to the computer device 20 via the CTI control unit 11. To do.

  The antenna control unit 13 is connected to the local antenna 30 and controls the local antenna 30 to accommodate the handset pager 40 which is a PHS terminal in the button telephone device 10. Control sending and receiving data.

  The extension control unit 14 is connected to the extension telephone 50 accommodated in the key telephone apparatus 10 and controls transmission / reception of signals and data between the key telephone apparatus 10 and the extension telephone 50.

  The call switch 15 switches the transmission path according to a command from the exchange processing unit 12a. For example, the transmission path between the key telephone apparatus 10 and the slave pager 40 and the transmission path between the key telephone apparatus 10 and the extension telephone 50 are switched, and the transmission is performed between the slave pager 40 and the extension telephone 50. Form a road.

  The external line control unit 17 is connected to the external telephone 70 via the public network 60 and controls transmission and reception of signals and data between the key telephone apparatus 10 and the external telephone 70.

  The computer device 20 has software capable of realizing the CTI function, and can send and receive data to and from the key telephone device 10. The data transmitted to the button telephone device 10 has a data format as shown in FIG. 4A, for example. The extension number of the called child device pager 40, the call abandon time, and the child device pager 40 The display data to be displayed and the telephone number of the callback destination are included. The display data includes character information such as a display position, a background color, a character font, and display text when displayed on the child device pager 40.

  Furthermore, a response signal or a disconnection signal can be received from the key telephone device 10, and the connection status of each terminal device connected via the key telephone device 10 can be displayed and stored.

  The computer device 20 is installed in the vicinity of the button telephone device 10 or via a network such as an IP network, and can transmit data to the slave pager 40 via the button phone device 10 from the remote place.

  The data may be input manually by a user using the computer device 20, or may be automatically transmitted based on data input in advance or data input from an external device. For example, display data that automatically notifies a failure when a failure of a certain device is detected, or data that makes a call with an extension telephone 50 that is a callback destination may be transmitted to a specific slave pager 40.

  The slave pager 40 using the PHS terminal as a pager is connected to the local antenna 30 via a wireless line and is accommodated in the key telephone device 10. FIG. 5 shows the configuration of the slave pager 40. The slave unit pager 40 includes a slave unit display unit 41 for displaying display text received from the key telephone device 10, a call unit 42 for making a call with the extension telephone 50 and the external telephone 70, a slave unit antenna 43, A transmission / reception unit 44, a slave unit CPU 45, a slave unit memory 46, a ringing unit 47, a signal control unit 48, and a signal button 49 are provided.

  The handset antenna 43 is connected to a communication line using PHS, and transmits and receives data and signals to and from the key telephone device 10. The transmission / reception unit 44 transmits various signals and voices processed by the handset CPU 45 to the button telephone device 10, and transmits signals and various data received from the button telephone device 10 to the handset CPU 45.

  The CPU 45 processes the data and signals received by the transmission / reception unit 44 and transmits them to each unit in the slave pager 40 to display display text, ring processing, incoming / outgoing call processing, call processing, the key telephone device 10 and the extension telephone. Signal processing of response signal and disconnection signal to 50 is performed. The received data is stored in the handset memory 46, the telephone number of the called party is extracted as necessary, and the calling process is performed.

  The handset memory 46 records display data received from the key telephone device 10, and a display text is extracted at the request of the handset CPU 45.

The ringing unit 47 rings according to a command from the slave CPU 45 that has processed the call signal received from the key telephone device 10.
The signal button 49 connected to the signal control unit 48 includes a response button 49a and a disconnect button 49b. By pressing each button, a response signal and a disconnect signal are input to the signal control unit 48, respectively. The signal control unit 48 transmits each signal input by the signal button 49 to the transmission / reception unit 44 based on a command from the slave CPU 45.

  The call unit 42 includes a speaker 42a, a microphone 42b, and a call circuit 42c, and enables a call with the key telephone apparatus 10 and the extension telephone 50. Audio data received from the transmission / reception unit 44 and processed by the slave CPU 45 is output as audio from the speaker 42a via the call circuit 42c. Also, the voice input from the microphone 42b is converted into voice data through the call circuit 42c, processed by the handset CPU 45, and transmitted from the transmitting / receiving unit 44 to the opposing extension telephone 50 or the like via the handset antenna 43. Is possible.

  Data received from the transmission / reception unit 44 is processed by the slave CPU 45 and displayed on the slave display unit 41. For example, as shown in FIG. 6, display data included in the data is displayed.

  A first embodiment of a pager system according to the present invention will be described below with reference to FIGS.

  A preferred use example of the pager system according to the present invention will be described as an example. The pager system according to the present invention notifies the maintenance staff A who manages the equipment of the status of the equipment failure occurring in the factory, and further makes a call between the person in charge B who manages the equipment and the maintenance staff A. At this time, it is assumed that the maintenance staff A has the slave pager 40 (extension number 200), and the person in charge B is in the vicinity of the extension telephone 50 (phone number 350) as the callback destination. In addition, the computer device 20 that notifies the failure status is assumed to receive failure information from a system or a monitor who monitors the failure status in the factory. The embodiment of the pager system according to the present invention is not limited to the above embodiment.

  FIG. 7 shows an operation sequence of the pager system according to the present invention when there is no response from the slave pager 40 within the call abandonment time.

  The computer device 20 to which the failure status of the device in the factory is inputted, inputs data in the data format as shown in FIG. 4 (a) (data at the generation time 11:10) to the key telephone device 10 and the child device. A request for calling the pager 40 and a request for displaying the display text included in the data are made to the key telephone apparatus 10 (step SA1).

  Data input via the CTI control unit 11 of the key telephone device 10 is stored in the memory 16 as a memory table shown in FIG. 3A by the data processing unit 12b. In the memory table, the generation time (11:10) that is the time when the data was transmitted, the extension number (200) of the called child device pager 40, the call abandonment time (30 seconds), and the child device pager 40 The display text (failure occurrence) to be displayed and the telephone number (350) of the extension telephone 50 held by the person in charge B who is called back are recorded.

  The exchange processing unit 12a reads the called extension number (200) from the memory table stored in the memory 16, and causes the antenna control unit 13 to secure a wireless transmission path with the called child device pager 40 ( Step SA2), calling processing is performed. Further, the data processing unit 12 b extracts display data included in the data and transmits it to the antenna control unit 13. The antenna control unit 13 transmits display data to the PHS network as wireless data via the local antenna 30 (step SA3). Further, the exchange processing unit 12a extracts the call abandonment time (30 seconds) from the memory table, and causes the call abandonment timer 18 to start measuring the call abandonment time. (Step SA4).

  The slave pager 40 with the extension number 200 that has received the wireless data from the local antenna 30 rings and displays the received display data on the slave display unit 41 as shown in FIG. The data is stored in the memory 46 (step SA5).

  When the answer button 49a is not pressed down by the maintenance staff A who owns the child pager 40 and the response signal is not transmitted to the key telephone device 10, and the call abandonment time (30 seconds) elapses, the exchange processing unit 12a The timer 18 finishes measuring the call abandonment time (step SA6), transmits a disconnection signal to the slave pager 40, and opens the wireless transmission path (step SA7).

  The slave pager 40 that has received the disconnection signal stops ringing (step SA8). In addition, the exchange processing unit 12a opens a transmission path between the key telephone device 10 and the slave pager 40 (SA9). The display data is displayed until the maintenance button A is pressed by the maintenance staff A, and when the disconnect button 49b is pressed, the display is erased from the slave unit display unit 41 (step SA10). The display data that is no longer displayed can be recalled from the slave memory 46 and displayed.

  The signal processing unit 12c that has transmitted a disconnection signal from the slave pager 40 transmits a call abandon signal to the computer device 20 indicating that a transmission path between the callback destination extension telephone 50 and the slave pager 40 cannot be secured. The computer device 20 stores the connection status between the slave pager 40 and the extension telephone 50 as a log (step SA11).

  Next, a case in which a response signal is received within a call abandoning time after the key telephone apparatus 10 calls the handset pager 40 and communication is performed between the handset pager 40 and the extension telephone 50 as a callback destination. This will be described using the operation sequence of FIG.

  The computer device 20 to which the failure status of the device in the factory is inputted, inputs data in the data format as shown in FIG. 4 (a) (data at the generation time 11:10) to the key telephone device 10 and the child device. A request for calling the pager 40 and a request for displaying the display text included in the data are made to the key telephone device 10 (step SB1).

  Data input via the CTI control unit 11 of the key telephone device 10 is stored in the memory 16 as a memory table shown in FIG. 3A by the data processing unit 12b. In the memory table, the generation time (11:10) that is the time when the data was transmitted, the extension number (200) of the called child device pager 40, the call abandonment time (30 seconds), and the child device pager 40 The display text to be displayed (failure occurrence) and the telephone number (200) of the extension telephone 50 held by the person in charge B who is called back are recorded.

  The exchange processing unit 12a reads the called extension number (200) from the memory table stored in the memory 16, and causes the antenna control unit 13 to secure a wireless transmission path with the slave pager 40 (step SB2). Then, a calling process is performed on the slave pager 40. Further, the data processing unit 12 b extracts display data included in the data and transmits it to the antenna control unit 13. The antenna control unit 13 transmits display data to the PHS network as wireless data via the local antenna 30 (step SB3). Further, the exchange processing unit 12a extracts the call abandonment time (30 seconds) from the memory table, and causes the call abandonment timer 18 to start measuring the call abandonment time. (Step SB4).

  The slave pager 40 having the extension number 200 that has received the wireless data from the local antenna 30 rings and displays the received display data on the slave display unit 41, and stores the display data in the slave memory 46 (step). SB5).

  When the response button 49a is pressed by the maintenance person A holding the slave pager 40 within the call abandonment time (30 seconds) after receiving the data (step SB6), the ringing stops and the response signal is signal-controlled. The data is transmitted from the unit 48 to the key telephone apparatus 10 via the transmission / reception unit 44. (Step SB7).

  The signal processing unit 12c of the key telephone device 10 that has received the response signal reports that the response signal has been received to the computer device 20, and the computer device 20 stores that the slave pager 40 has responded as a log ( Step SB8).

  The exchange processing unit 12a reads the telephone number 350 of the callback destination extension telephone 50 from the memory 16 in response to the response signal and transmits a calling signal to the extension telephone 50 of the telephone number 350 (step SB9). A calling signal is transmitted to the machine pager 40 informing that the extension telephone 50 is being called (step SB10). At this time, a sound indicating the calling is generated from the speaker 42a of the child device pager 40, and the maintenance staff A can confirm that the person in charge B as the callback destination is being called.

  The extension telephone 50 rings when it receives the calling signal, and the person in charge B sends a response signal to the key telephone apparatus 10 by response means such as off-hook (step SB11). At this time, the off-hook method is not limited as long as a response signal is transmitted, such as a method by picking up the handset or pressing a reception button.

  The exchange processing unit 12a processes the response signal received by the key telephone device 10, secures a transmission path to the extension telephone 50 (step SB12), and stops transmission of the calling signal (step SB13). Further, the communication switch 15 is controlled to switch the transmission path between the handset pager 40 and the extension telephone 50 to secure the transmission path between the handset pager 40 and the extension telephone 50. To do. A call can be made between the maintenance staff A who uses the slave pager 40 and the person in charge B who uses the extension telephone 50 through the secured transmission path (step SB14).

  When the disconnect button 49b is pressed by the maintenance staff A who has finished the call, the display data displayed on the slave unit display unit 41 of the slave unit pager 40 is erased, a disconnect signal is transmitted to the key telephone device 10, and the key phone is called. The exchange processing unit 12a of the device 10 opens a transmission path between the key telephone device 10 and the slave pager 40 (step SB15a). In addition, when receiving the disconnection signal, the exchange processing unit 12a of the key telephone apparatus 10 transmits a disconnection signal to the extension telephone 50, and opens the transmission path between the key telephone apparatus 10 and the extension telephone 50 (SB16a). The signal processing unit 12c reports to the computer device 20 that the transmission path between the slave pager 40 and the extension telephone 50 has been disconnected, and the computer apparatus 20 confirms the disconnection of the transmission path and records it as a log (step SB17). ).

  On the other hand, when the person in charge B who has finished the call goes on-hook before the person in charge A, the disconnection signal is transmitted to the key telephone device 10, and the exchange processing unit 12 a (Step SB15b), and the exchange processing unit 12a that receives the disconnection signal opens the transmission path to the slave pager 40 (step SB16b). After cutting, the process proceeds to step SB17.

  It should be noted that the timing of disconnection of the transmission path of the slave pager 40 and the extension telephone 50 may be any of the first, and even when the extension telephone 50 transmits a disconnection signal first, the process proceeds to step SB17 and the computer device 20 is disconnected. Make a report.

  Further, as shown in FIG. 11, when the key telephone apparatus 10 transmits a calling signal to the extension telephone 50, if the extension telephone 50 is busy or if the person in charge B is absent and does not answer, the maintenance staff A When the disconnect button 49b of the handset pager 40 is pressed and a disconnect signal is transmitted to the key telephone device 10 (step SD18c), the key phone device 10 stops transmitting the calling signal and the calling signal (step SD18c). SD19c), a disconnection signal is transmitted to the child device pager 40 to open the transmission path to the child device pager 40 (step SD20c). After the transmission line is opened, the operation is the same as step SB17.

  In the above embodiment, the callback destination is the extension telephone 50, but it may be the external telephone 70. In this case, the data includes the telephone number of the callback destination, and the outside line control unit 17 operates instead of the extension line control unit 14. In this case, by registering the telephone number of the external telephone as the telephone number of the callback destination, it is possible to determine that the handset pager 40 has responded in a remote place different from the place where the button telephone device 10 is installed, and a telephone call is possible. Become.

  As described above, the pager system according to the present invention is different in that information such as failure of equipment in the factory is transmitted as character information to the maintenance staff A having the slave unit pager 40 away from the site, and the maintenance staff responds. Call back automatically to the extension telephone 50 (person in charge B) at the location. If the slave pager 40 does not respond after a certain time (call abandonment time), the slave pager 40 stops ringing and is not connected to the callback destination. For this reason, it is possible to perform two-way communication that can notify the transmission side whether or not the user of the child pager 40 has confirmed the displayed data. Further, when the call abandonment time is set to a very short time or the telephone number of the callback destination is not designated, it plays the same role as a conventional pager.

  Next, a second embodiment of the pager system according to the present invention will be described with reference to FIGS. 3 (b), 4 (b), and FIGS. 9 to 11. FIG.

  When a device failure occurs in the factory, the maintenance person A who manages the device is notified of the failure state, and a call is made with the person in charge B who has jurisdiction over the device. At this time, it is assumed that the maintenance staff A has the slave pager 40 (extension number 200) and the person in charge B is in the vicinity of the extension telephone 50 (phone numbers 350 to 35n) as the callback destination.

  FIG. 4 shows an operation sequence in the case where data including a plurality of (extension telephones 50 (1 to n)) callback destination telephone numbers as shown in FIG. 4B is input from the computer device 20 to the key telephone device 10. 9 shows.

  An operation (corresponding to step SB1 to step SB8) until the button telephone device 10 calls the child device pager 40 based on the data inputted from the computer device 20 and secures a transmission path with the child device pager 40; The operations up to the disconnection after the call between the machine pager 40 and the callback destination extension telephone 50 (corresponding to step SB15a or SB15b to step SB17) are the same as those in the first embodiment of the present invention, and are therefore omitted. To do. However, an example of the memory table is shown in FIG. 3 (b), the generation time is 11:40, the extension number of the called child device pager 40 is 200, the call abandonment time is 30 seconds, the display text is a failure, and the callback destination The telephone number is 350 to 35n.

  After securing the transmission path between the button telephone device 10 and the slave pager 40, the exchange processing unit 12a reads the telephone number of the callback destination from the memory 16 in response to the response signal and sends it to the extension telephone 50. A call signal is transmitted. At this time, 350 is selected from the plurality of callback destination telephone numbers in the memory table, and a calling signal is transmitted to the extension telephone 50 (350) having the telephone number 350 (step SC9).

  In addition, a calling signal is transmitted to the child pager 40 to notify that the extension telephone 50 (350) is being called (step SC10), and a sound to notify the calling is generated from the speaker 42a of the child pager 40. The maintenance staff A who uses the slave pager 40 confirms that the person in charge B as the callback destination is called.

  When the extension telephone 50 (350), which is the destination of the call signal, is busy, the key telephone apparatus 10 receives a busy tone to notify the busy from the extension telephone 50 (350) (step SC11). 12a selects the callback destination telephone number 351 in the memory table, switches the callback destination extension telephone 50, and transmits a call signal to the extension telephone 50 (351) (step SC12a).

  When the maintenance person B cannot answer from the extension telephone 50 (351) that receives the call signal (for example, when the maintenance person B is not in the vicinity of the extension telephone 50 (351)), the exchange processing unit 12a is called back. A call time for transmitting a call signal to the extension telephone 50 is set in advance, or the call time is included in data input from the computer device 20 and the call time is read by the exchange processing unit 12a. When there is no response from the transmitted extension telephone 50 (351) after the calling time, the extension telephone 50 (352) is selected from the memory table and a calling signal is transmitted (step SC12b).

  Note that the method of reading the telephone number when there are a plurality of callback destination telephone numbers is not limited to the order of description or the prioritized extraction in advance. Further, the extension telephone 50 to which a busy tone is returned from the extension telephone 50 that is called and the extension telephone 50 that does not transmit a response signal even after the call time elapses are not limited to the above order.

  The ringing signal is transmitted by repeating Step 12a or Step 12b until the extension telephone 50 that transmits the response signal appears, and the person in charge B uses a means such as picking up the handset of the extension telephone 50 (35n). A response signal is transmitted to (step SC13).

  The exchange processing unit 12a processes the response signal received by the key telephone device 10, secures a transmission path to the extension telephone 50 (35n) (step SC14), and stops transmitting the calling signal (step SC14). SC15). Further, the communication switch 15 is controlled to switch the transmission path between the handset pager 40 and the extension telephone 50 to secure the transmission path between the handset pager 40 and the extension telephone 50. To do. A call can be made between the maintenance staff A who uses the slave pager 40 and the person in charge B who uses the extension telephone 50 (35n) through the secured transmission path (step SC16).

  FIG. 10 shows the operation of the key telephone apparatus 10 when a call is made to all the telephone numbers of the callback destination in the data and there is no response signal from the last extension telephone 50 (35n) even if the call time elapses. Shown in

  When there is no response signal from the last extension telephone 50 (35n), the key telephone apparatus 10 transmits a calling signal to the extension telephone 50 (35n) and a calling signal to the slave pager 40 as shown in FIG. 10a. (Step SD18a), a disconnection signal is transmitted to the child device pager 40, and the call on the transmission line is abandoned (step SD19a). Alternatively, as shown in FIG. 10B, the call destination is switched to the extension telephone 50 (350) that first transmitted the call signal (step SD18b), and the call signal is transmitted to the extension telephone 50 (350) ( Step SD19b), step SC12a or step SC12b is repeated until the slave unit pager 40 disconnection signal is transmitted. Further, the number of regressions in step SD18b can be freely selected.

  FIG. 11 shows the operation when the key telephone apparatus 10 transmits a disconnection signal from the handset pager 40 to the key telephone apparatus 10 while calling the extension telephone 50. This operation is the same in the first embodiment of the present invention.

  When the person in charge A who operates the child pager 40 presses the disconnect button 49b while the key telephone apparatus 10 is calling the extension telephone 50, a disconnect signal is transmitted to the key telephone apparatus 10 (step SD18c). The telephone device 10 stops the transmission of the calling signal and the calling signal (step SD19c), transmits a disconnection signal to the child device pager 40, and opens the transmission path to the child device pager 40 (step SD20c). After the transmission line is opened, the operation is the same as step SB17.

  In the above embodiment, the callback destination is a plurality of extension telephones 50, but may be a plurality of external telephones 70. In this case, the data includes the telephone numbers of a plurality of external telephones 70 as callback destinations, and the outside line control unit 17 operates instead of the extension line control unit 14.

  As described above, in the second embodiment according to the present invention, by setting a plurality of callback destinations, a call between the user having the slave pager 40 and the related contact can be ensured. . Further, by using a plurality of computer devices 20 for inputting data to the key telephone device 10, a more convenient system can be constructed.

FIG. 1 is an example of a configuration of an embodiment of a pager system according to the present invention. FIG. 2 is a block diagram of the button telephone apparatus. FIG. 3 is an example of a memory table. FIG. 4 is an example of a data format. FIG. 5 is a configuration diagram of the slave pager. FIG. 6 is an example of a display screen of the slave pager. FIG. 7 is an operation sequence of the pager system according to the present invention when there is no response from the slave pager within the call abandonment time. FIG. 8 is an operation sequence of the pager system according to the present invention when there is a response from the slave pager within the call abandonment time. FIG. 9 shows an operation sequence of the pager system according to the present invention when data including a plurality of callback destination telephone numbers is input from the computer device 20 to the button telephone device 10. FIG. 10 shows an operation sequence of the pager system according to the present invention in a case where all the telephone numbers of the callback destination in the data are called and there is no response signal from the last extension telephone even when the ringing time elapses. FIG. 11 shows an operation sequence of the pager system according to the present invention when a disconnection signal is transmitted from the slave pager to the key telephone device while the key telephone device is calling the extension telephone 50.

Explanation of symbols

10: Button telephone device 11: CTI control unit 12: CPU
12a: exchange processing unit 12b: data processing unit 12c: signal processing unit 13: antenna control unit 14: extension control unit 15: call switch 16: memory 17: outside line control unit 18: call abandonment timer 20: computer device 30: local antenna 40: handset pager 41: handset display section 42: call section 42a: speaker 42b: microphone 42c: call circuit 43: handset antenna 44: transmission / reception section 45: handset CPU
46: handset memory 47: ringing unit 48: signal control unit 49: signal button 49a: response button 49b: disconnect button 50: extension telephone 60: public network 70: external telephone

Claims (18)

A computer device that retains data associated with the child device, the telephone, and display data indicating the failure content of the device ;
An exchange device connected to the computer device;
Said slave unit that utilizes a wireless communications system which is accommodated in said switching device,
Comprising a said telephone connected to the exchange unit,
The exchange device secures a first transmission path with the slave unit included in the data input from the computer device, and transmits display data included in the data by wireless calling.
The slave unit receives and displays the display data,
If the child machine, and transmits a first response signal to the radio call to the exchange unit,
In response to the first response signal , the exchange device calls the telephone set included in the data,
The telephone receiving the call sends a second response signal to the exchange;
When the exchange device receives the second response signal, it secures a second transmission path between the slave unit and the telephone, and controls communication between the slave unit and the telephone ,
When the predetermined call abandoning time has elapsed without receiving the first response signal, the switching apparatus opens the first transmission path and opens a transmission path between the handset and the telephone. A pager system that notifies the computer device that it could not be secured . The system of claim 1, wherein
The data includes character information and a telephone number of the telephone,
The slave unit displays the character information received by wireless calling from the exchange device,
The switching apparatus that receives the first response signal calls the telephone having the telephone number associated with the character information, and uses the second transmission path between the handset and the telephone. A pager system that secures and controls communication. The system according to claim 1 or 2 ,
When the switching apparatus receives the first response signal from the slave unit within the call abandon time after making a wireless call to the slave unit,
The pager system, wherein the exchange device secures a second transmission path between the slave unit and the telephone and controls communication between the slave unit and the telephone. The system according to any one of claims 1 to 3 ,
The data includes n telephone numbers (n is an integer of 2 or more) of a plurality of telephones connected to the switching device and associated with the failure content ,
It said switching device, when the plurality of the n-th telephone from the first phone in the phone and call Te turn toggle does not receive the second response signal from the n-th telephone call signal Pager system that stops sending messages. The system of claim 4 , wherein
When the switching device receives the second response signal from the telephone of the call destination, the switching device secures the second transmission path between the slave unit and the telephone that has transmitted the second response signal. A pager system for controlling communication between the handset and the telephone that has transmitted the second response signal . The system according to any one of claims 1 to 3 ,
The data includes n telephone numbers (n is an integer of 2 or more) of a plurality of telephones associated with the failure content ,
Said switching device switches the order of the call destination telephone n-th telephone from the first telephone in the plurality of telephones to call, the call destination until Symbol second response signal is received A pager system that repeats switching a predetermined number of times . The system according to any one of claims 1 to 6 ,
When the exchange apparatus receives a disconnection signal from the slave unit while making a call to the telephone, the switching device stops the call and opens the first transmission path to the slave unit. The system according to any one of claims 1 to 7 ,
The switching device accommodates an extension telephone;
The data includes the extension number of the extension telephone associated with the fault condition,
The switching apparatus that receives the first response signal calls the extension telephone having the extension number included in the data input from the computer apparatus, and the extension having the extension number and the slave unit. A pager system that performs communication by securing the second transmission path with a telephone. The system according to any one of claims 1 to 7 ,
The switching device is connected to another communication network accommodating at least one external telephone;
The data includes a telephone number of the external telephone associated with the failure content ,
The switching apparatus that receives the first response signal calls the external telephone having a telephone number included in the data input from the computer apparatus, and the communication between the handset and the external telephone is performed. A pager system that secures a second transmission path and performs communication. The system according to any one of claims 1 to 9 ,
A pager system in which the exchange device is a key telephone device. The system according to any one of claims 1 to 10 ,
The pager system in which the wireless communication system is a PHS. A computer device holding data in which a slave unit, a telephone set, and display data indicating a failure content of the device are associated, and the step of inputting the data to an exchange device;
Exchange device, comprising the steps of securing a first channel between said slave unit included in the data to be input to the switching apparatus,
The exchange device transmits display data included in the data to the handset by wireless calling;
The slave unit displaying the received display data;
When the handset transmits a first response signal to the wireless call to the switching device,
The switching device calling the telephone set included in the data in response to the first response signal;
It said telephone receiving the call, sending a second response signal,
The switching apparatus includes the step of receiving the second response signal and securing a second transmission path between the handset and the telephone;
Enabling communication between the handset and the telephone ;
If a predetermined call abandonment time has elapsed without receiving the first response signal,
The switching device opening the first transmission path;
Notifying the computer device that the exchange device could not secure a transmission path between the handset and the telephone;
A pager callback method comprising: The method of claim 12 , wherein
The data includes character information and a telephone number of the telephone,
The slave unit displaying the character information received by wireless call from the exchange;
A step of said exchange apparatus which receives the first response signal, a call to the phone with the phone number associated with the character information,
A pager callback method comprising: securing the second transmission path between the slave unit and the telephone. The method according to claim 12 or 13 , wherein:
The switching device receiving the first response signal from the slave unit within the call abandon time after making a wireless call to the slave unit;
A pager callback method, comprising: the switching device securing the second transmission path between the handset and the telephone. 15. A method according to any one of claims 12 to 14 ,
The data includes n telephone numbers (n is an integer of 2 or more) of a plurality of telephones associated with the failure content ,
A step wherein the exchange device, which in turn onset Te toggle call the n-th telephone from the first telephone in the plurality of telephones,
A pager callback method comprising: a step of stopping the transmission of a ringing signal when the switching apparatus does not receive the second response signal from the nth telephone. The system of claim 15 , wherein
The exchange receives the second response signal from the telephone of the call destination;
A pager callback method comprising: securing the second transmission path between the telephone set that has transmitted the second response signal and the slave unit. 15. A method according to any one of claims 12 to 14 ,
The data includes n telephone numbers (n is an integer of 2 or more) of a plurality of telephones associated with the failure content ,
The switching device comprises switching the first telephone to the nth telephone in order from the first telephone in the plurality of telephones,
If it does not receive the second response signal from the n-th telephone, the exchange unit is pre Symbol repetition number of times switching between a calling destination given to the second response signal is received <br/> pager Callback method. The method according to any one of claims 12 to 17 , wherein
Transmitting the disconnect signal to the switching device while the handset is calling the telephone;
The switching device receiving the disconnect signal stops the call;
A pager callback method, comprising: opening the first transmission path between the exchange device and the slave unit.

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