JP2007312443A - Key telephone system and key telephone main device constituting the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a key telephone system for performing room monitoring by specifying the extension telephone without having to use a subaddress. <P>SOLUTION: The key telephone system includes a key telephone main device 10 having one or more outside lines and two or more extension lines; and two or more extension telephones 30-1, 30-n connected to the extension lines. A sensor 50 for detecting faults is connected to at least one extension telephone; and the key telephone main device 10 includes a hand-free communication means for shifting the extension telephone to room-monitoring operation with hands-free communication at call termination, and making the speaker of the extension telephone operated automatically at a volume level at room monitoring, while the microphone of the extension telephone is operated automatically. The extension telephone 30 includes a room-monitoring operation means for operating the microphone, regardless of prior microphone operation propriety registration, and making the speaker operate at the volume instructed at the room monitoring in accordance with the command from the key telephone main device 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention provides, for example, a key telephone system including a key telephone main apparatus to which a single or plural external lines and a plurality of extension telephones are connected, and an internal telephone (button telephone) connected to the key telephone main apparatus, and the The present invention relates to a key telephone main device and an extension telephone (button telephone) constituting a key telephone system. More particularly, the present invention relates to a key telephone system with a simple security function and a key telephone main device.

  The key telephone main apparatus of the present invention is defined as a key telephone main apparatus in which one or more external lines and a plurality of extension telephones (button telephones) are connected, including a key telephone main apparatus and a private branch exchange (PBX).

  In a key telephone system comprising a key telephone main apparatus connected to one or more external lines and a plurality of extension telephones (button telephones) and a plurality of extension telephones (button telephones), a telephone is called from the outside to the extension telephone, and the extension telephone There is a button telephone system having a function of monitoring surrounding sounds and calling from an extension telephone speaker. This button telephone system can check the state of the room by operating the telephone when away from home, and can intimidate the suspicious person in the room with a voice.

  In addition, as a function of a button telephone system similar to a room monitor, there is a hands-free call in which a call is made using a microphone and a speaker instead of a telephone handset in the case of a call. It is necessary to set and operate the telephone side microphone in advance.

  By using the ISDN line, the sub address can be used as the instruction information for shifting to the room monitor, but the sub address can be notified only to the ISDN telephone or PHS. A mobile phone normally used outside the home cannot send out a sub-address, and therefore cannot perform room monitoring. A system that can be transferred to a room monitor is desired regardless of the type of telephone on the calling side.

  In general, the room monitor is mainly intended to monitor the sound around the extension telephone connected to the extension of the key telephone main unit when away from home, but in the case of a key telephone system or a private branch exchange (PBX) Since a plurality of extension telephones are connected, there is also a need for a function that allows the room monitor function to be used to monitor the situation of a warehouse with no people or an empty conference room by voice from the extension telephone.

  When the room monitor is activated, it is performed in the same way as a hands-free call using a microphone and speaker. Therefore, it is necessary to set the microphone ON in advance by operating the extension telephone. Sound cannot be monitored and improvements are desired. Furthermore, if the speaker reception volume on the extension telephone side is small, the volume is low when the caller speaks, so there is no threatening effect, and it is necessary to increase the volume in advance.

  Further, when setting the room monitor function, there are some extension telephones that are not properly monitored depending on the installation location. Therefore, it is necessary to regulate the monitor for each extension telephone (for example, Patent Document 1 or Patent Document 2). reference).

Furthermore, room monitoring is especially necessary when something goes wrong. When a sensor device is connected to the key telephone main unit and the sensor device detects an abnormality, it automatically sends to the telephone outside the office. Therefore, a function that can automatically shift to the room monitor is also required.
Japanese Patent No. 2743587 JP-A 63-146649

  In order to cope with such a demand, the present invention enables room monitoring by specifying an extension telephone without using a subaddress in a key telephone system comprising a key telephone main unit and a plurality of extension telephones. A first object is to provide a button telephone system.

  The present invention also provides a button telephone system capable of performing room monitoring of another extension telephone connected to the key telephone main device from the extension telephone connected to the key telephone main device. The purpose.

  A third object of the present invention is to provide a key telephone system capable of automatically shifting an extension key telephone to be monitored to a hands-free state in the key telephone system.

  Furthermore, a fourth object of the present invention is to provide a system capable of selecting whether or not room monitor shift is possible for each extension telephone in the above button telephone system.

  Furthermore, the present invention connects a sensor device directly or via an extension telephone to the key telephone main unit constituting the key telephone system, and when the sensor device detects the occurrence of an abnormality, transmits that fact to a specific telephone, A fifth object is to provide a key telephone system that enables room monitoring from the telephone.

  In order to solve the above problems, means for receiving push signals in various incoming states, automatic transmission to the registered phone when an abnormality is detected in the sensor device connected to the key telephone main unit, and notification of the abnormality after the call destination response After that, any or all of the means for shifting to the push signal reception mode, means for analyzing the push signal pressed by the called party, and analyzing dial information from other telephones connected to the same telephone device Means for verifying the push signal from the outside line or the dial information from the extension and the information registered in the key telephone main unit, so that the sound around the extension telephone connected to the key telephone main unit is provided. , And the caller's voice can be output from the speaker of the extension telephone at a volume different from that during normal use.

  In order to solve the above problems, the present invention provides a button telephone system comprising a key telephone main unit having one or more external lines and a plurality of extensions and a plurality of extension telephones connected to the extensions. At least one sensor is connected to a sensor for detecting an abnormality, and the key telephone main device immediately shifts the extension telephone to a room monitor operation by a hands-free call when receiving an incoming call, and sets the microphone regardless of the microphone setting of the extension telephone. Hands-free call means for instructing a room monitor operation for automatically operating and automatically operating a speaker of the extension telephone at a speaker volume level at the time of room monitoring, the extension telephone in advance according to an instruction from the key telephone main unit Instructed volume during room monitoring when the microphone is operated regardless of the microphone operation registration With a room monitor operation means for operating the speaker.

  The present invention relates to a key telephone system comprising a key telephone main apparatus having one or more external lines and a plurality of extensions and a plurality of extension telephones connected to the extension, wherein at least one of the plurality of extension telephones detects an abnormality. The button telephone main unit is connected to a room monitor special number storage unit for storing a room monitor special number that immediately shifts the extension telephone to a room monitor operation by a hands-free call when an incoming call is received, and when the sensor detects an abnormality. Special number information storage means having an automatic calling telephone number storage section for storing an external or extension telephone number to be automatically called, and a sensor-compatible room monitor telephone storage section for storing a designated extension telephone number corresponding to each sensor Stores speaker volume level during room monitoring and speaker volume level during room monitoring An extension information storage means having a memory, an automatic calling means for automatically calling the telephone number of the external line or extension when the sensor detects an abnormality and notifying the abnormality after answering the call destination, and pushing after the abnormality notification Push signal reception mode transition means for shifting to the signal reception mode, push signal analysis means for analyzing the push signal pressed by the call destination, and the room monitor telephone store corresponding to the sensor when the room monitor special number designated by the call destination is detected Instructs the room monitor operation to automatically operate the microphone from the designated extension telephone number stored in the section regardless of the microphone setting of the designated designated extension telephone and automatically activate the speaker of the designated extension telephone at the speaker volume level at the time of room monitoring Hands-free calling means and the above external line or extension and the corresponding designated extension telephone A telephone line switching means for connecting to the telephone call means, and the extension telephone operates the microphone in accordance with an instruction from the key telephone main unit regardless of a prior microphone operation registration, and the room monitor instructed at the time of room monitoring Room monitor operating means for operating the loudspeaker at the time volume, and when a room monitor instruction is given from the external line or extension to the designated designated extension telephone, it is stored in the room monitor loudspeaker volume level storage unit. The callee's voice is output from the speaker according to the speaker reception volume.

The present invention relates to a key telephone main apparatus that constitutes a key telephone system in combination with a plurality of extension telephones having microphones and speakers, and is connected to one or more external lines and a plurality of extensions. At least one sensor is connected to a sensor for detecting an abnormality, and a room monitor special number storage unit that stores a room monitor special number that immediately shifts the extension telephone to a room monitor operation by hands-free call when an incoming call is received, and the sensor detects an abnormality. Special number information storage means having an automatic calling telephone number storage section for storing an external or extension telephone number to be automatically called, and a sensor-compatible room monitor telephone storage for storing a designated extension telephone number corresponding to each sensor Stores the speaker volume level during room monitor, which stores the speaker volume level during monitor and room monitor And extension information storing means having a le storage unit,
When the sensor detects an abnormality, it automatically calls the telephone number of the external line or extension and notifies the abnormality after a call destination response, and a push signal that shifts to a push signal reception mode after notification of the abnormality Reception mode transition means, push signal analysis means for analyzing a push signal pressed by the call destination, and a designated extension telephone number stored in the sensor-corresponding room monitor telephone storage unit when a room monitor special number designated by the call destination is detected A hands-free call means for automatically instructing a room monitor operation to automatically operate a microphone at a speaker volume level at the time of room monitoring and automatically operate a speaker of the specified extension telephone regardless of the microphone setting of the corresponding designated extension telephone, and the external line or Call path disconnection that connects the extension and the specified designated extension telephone to the hands-free calling means And means.

  In the key telephone system according to the present invention, as shown in the above embodiments, an incoming call from a specific caller, an incoming call in an answering machine state, an incoming call by a direct indial (DID), or an extension telephone does not respond for a certain period of time. It is possible to shift from various incoming line incoming forms, such as incoming calls that sometimes shift to the direct-in-dial (DID) state, to room monitors, and by using general push signals, various operational forms of users In addition, there is an effect that room monitoring can be performed without limiting the type of telephone set used as a caller.

  In addition, when the sensor device detects an abnormality and calls a specific telephone on the go, it is possible to shift to the room monitor at the same time, so that it is possible to perform the room monitor when necessary.

  Further, since room monitoring can be performed from the extension telephone 30B connected to the key telephone main apparatus 10 to another extension telephone 30A connected to the same key telephone main apparatus 10, the room monitor of the other extension telephone can be changed from the extension telephone. It is possible to achieve the effect that no telephone fee is required by using the extension.

  Furthermore, since it is possible to select whether or not room monitoring is possible by a registration operation from an extension telephone, it is possible to cope with a case where there is a part of telephones that are prohibited from being monitored depending on the operation.

  In addition, as operation on the key telephone side, the microphone is automatically turned on at the time of room monitoring without performing the microphone ON operation or adjusting the speaker reception volume in advance, and the speaker reception is set to the prescribed volume required for the room monitor. The room monitor can be performed in the normal use state.

  Further, when a sensor device is installed as a device for performing room monitoring near an extension telephone, it is usually necessary to perform dedicated wiring from the key telephone main unit 20 to the sensor device 50-n. A sensor interface 46 is provided to connect the sensor device to the extension telephone, and the remainder of the four-core cable used for wiring between the main button telephone main unit and the button telephone is used for the sensor. It is characterized in that it is not necessary to perform wiring from the key telephone main device to the sensor only for the sensor, and the wiring cost is reduced and the workability is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram illustrating a functional configuration of a key telephone main device according to the present invention. 2 is a functional schematic diagram of the present invention, FIG. 3 is a circuit block diagram of a key telephone main device and a key telephone (extension telephone) connected to the extension side of the key telephone system according to the present invention, and FIG. Functional block diagram of the central control unit and the storage unit of the key telephone main unit, FIG. 5 is a flowchart of the key telephone main unit side up to the room monitor when an external line is received, and FIG. 6 is after automatic calling of the remote telephone at the time of sensor detection FIG. 7 shows a flowchart of the key telephone main device side until reaching the room monitor by calling from the extension, and FIG. 8 shows a flowchart of the extension telephone side during the room monitoring. .

  Here, in the present invention, the room monitor refers to a state in which a microphone and a speaker are turned on to enable a call regardless of whether or not the extension telephone is set to hands-free.

  As shown in FIG. 1, the key telephone main device 10 according to the present invention includes a caller telephone number extraction means M11, a communication path switching circuit M12, a specific caller determination means M13, a hands-free call means M14, Medium sound transmission means M15, answering machine automatic response means M16, sensor device connection means M17, push signal reception means M18, push signal analysis means M19, push signal reception mode transition means M20, designated extension telephone number determination means M21, special number information storage means M22, extension information storage means M23, room monitor determination means M24, direct in-dial function M25, and abnormal time calling means M26.

  The caller telephone number extraction means M11 is a means for extracting the caller's telephone number by using a number display service when an incoming call is received on the outside line, and the functions of the outside line circuit 13, the storage unit 20, and the central control unit 11 to be described later. Formed by.

  The speech path switching circuit M12 is a circuit that switches the connection between the outside line, the extension line, and others, and is composed of a speech path switching section 12 to be described later. The central control section 11, the outside line circuit 13, the hands-free control section 14, and the tone transmission section. 15, a voice guidance transmission unit 16, a push signal reception unit 18, and a data transmission / reception circuit 19 are connected.

  The specific caller determination means M13 compares the caller number extracted by the caller number extraction means M11 with the specific caller telephone number stored in the special number information storage means M22 to determine whether the incoming call is from the specific caller. It is means for determining whether or not, and is achieved by the central control unit 11 and the storage unit 20 described later.

  The hands-free call means M14 is a means for instructing the extension telephone to operate at a microphone and a preset speaker reception volume during a hands-free call. When the room is being monitored, the speaker is operated at the speaker reception volume level during room monitoring. Let The hands-free call means M14 is achieved by the hands-free control unit 14, the storage unit 20, and the central control unit 11 described later.

  The busy sound sending means M15 is a means for sending a busy sound to the outside line, and is achieved by the tone sending portion 15 and the central control portion 11 described later.

  The answering machine automatic answering means M16 is a means for sending a voice response message such as voice guidance after automatically answering an incoming call to the outside line when the key telephone system is set to the answering machine function. Part 11, voice guidance sending part 16, and storage part 20.

  The sensor device connection means M17 is a means for connecting the sensor device directly or via an extension telephone, and is constituted by a sensor interface and a sensor detection unit 17 described later.

  The push signal receiving unit M18 is a unit that receives a push signal from an external line or an internal line, and includes a push signal receiving unit 18 described later.

  The push signal analyzing means M19 is means for analyzing the content of the push signal received by the push signal receiving means M18, and is achieved by the central control unit 11.

  The push signal reception mode shifting means M20 is a means for shifting to the push signal reception state under a predetermined condition, and is achieved by the central control unit 11.

  The designated extension telephone number judging means M21 is means for judging whether or not the push signal analyzed by the push signal analyzing means M19 is a designated extension telephone number, and is formed by the central control section 11 and the storage section 20 described later. .

  The special number information storage means M22 is means for storing information such as a specific caller telephone number, a room monitor special number, a remote transfer special number, a password, a notification destination telephone number at the time of sensor detection, and the special number information in the storage unit 20 to be described later. It is formed by the equal storage means 201.

  The extension information storage means M23 includes extension numbers, room monitor availability information for each extension, speaker reception volume level for each extension, speaker reception volume level for room monitoring, handset reception volume level for each extension, microphone ON / OFF for each extension This is a means for storing information such as OFF setting and sensor-compatible in-room monitor telephone information, and is formed by extension information storage means 202 of the storage unit 20 described later.

  The room monitor availability determination means M24 is a means for determining whether or not the designated extension number judged by the designated extension telephone number judgment means M21 is room monitorable. The central control section 11 and the storage section 20 described later are used. It is formed.

  The direct in-dial function M25 is a function for receiving an incoming direct in-dial call to the extension telephone, and is formed by a central control unit 11, a tone transmission unit 15, and a voice guidance transmission unit 16 to be described later.

  The abnormal time calling means M26 is a means for calling a specific call destination when the sensor device detects an abnormality, and is formed by the central control unit 11, the storage unit 20, and the outside line circuit 13 described later.

  As shown in FIG. 2, the key telephone system according to the present invention includes a key telephone main apparatus 10 that accommodates a plurality of extension telephones 30-1 to 30-n and a sensor device 50 via at least one or more external lines. It is configured to be connected to the network 70. A cellular phone or PHS 90-1 can be connected to the key telephone main device 10 via the public network 70 and the base station 75, and a telephone 90-2 can be connected via the public network 70.

  Here, in the present specification, when individually describing a plurality of means / devices having the same function, the description will be made by attaching a branch number with “-” after the reference numeral. Among extension telephones, an extension telephone (monitored extension telephone) subject to room monitoring is given an A after the code, and an extension telephone (monitor extension telephone) that is going to perform room monitoring is followed by a B. Will be described.

  In this key telephone system, a speaker 36 and a microphone of the extension telephone 30A are received without receiving the extension telephone 30A connected to the key telephone main unit 10 by using push signals from various telephones 90-1 / 90-2 on the outside line side. 35 can be operated to perform room monitoring, and the speaker 36 and the microphone 35 of the monitored extension telephone 30A are operated by dialing from another extension telephone 30B connected to the same key telephone main device 10. Can be used to monitor the room. Further, when the sensor device 50 connected to the key telephone main device 10 detects an abnormality, the key telephone main device 10 automatically makes a call, calls an external telephone 90, and sends an external notification after sending a guidance to notify the abnormality after the response. The room monitor can be performed on the extension telephone 30 </ b> A connected to the key telephone main device 10 by operating a push signal from the telephone 90.

  The outline of the configuration of the key telephone main device 10 and the key telephone (extension telephone) 30 constituting the key telephone system according to the present invention will be described with reference to FIG. The key telephone system includes a key telephone main device 10 connected to a plurality of external lines (which may be one) and a plurality of key telephones 30-1 to 30-n connected to the key telephone main device 10. Is done.

  The key telephone main device 10 includes a central control unit 11, a speech path switching unit 12, a plurality of external line circuits 13-1 to 13-n, a hands-free control unit 14, a tone transmission unit 15, and a voice guidance transmission unit. 16, a sensor detection unit 17, a PB signal reception unit 18, a plurality of data transmission / reception circuits 19-1 to 19-n, and a storage unit 20.

  The central control unit 11 is a means for performing analysis and determination on input information (including information from the key telephone) of each circuit of the key telephone main device 10, inputting / outputting information to / from the storage unit 20, and controlling each circuit. .

  The speech path switching unit 12 is a means for performing exchange processing (connection between an external line and an internal line, connection of each sound source to an internal line and an external line) in the key telephone main device 10.

  The external line circuits 13-1 to 13-n are interface circuits connected to the external line.

  The hands-free control unit 14 is a means for performing control for preventing howling that occurs when a telephone call is made using a microphone and a speaker of a telephone.

  The tone transmission unit 15 transmits a busy tone to an external line or an internal line, or transmits a primary response signal for notifying that it is in a direct-in dial state (push signal reception waiting). It is a means to be connected to an external line or an internal line via

  The voice guidance sending unit 16 uses the communication path switching unit 12 to send a voice guidance as a response message when the key telephone main device 10 automatically answers an incoming call when the answering machine is in the answering mode or as a primary response signal during direct in dialing. It is a means connected to an outside line via.

  The sensor detection unit 17 is connected to the sensor device 50-n connected via the sensor device 50-1 or the extension telephone (button phone) 30-1 installed outside the key telephone main device 10 or in another room. It is means for receiving information and transferring it as data to the central control unit.

  The PB signal receiving unit 18 is a unit that receives the push signal received from the outside line and delivers it as data to the central control unit 11.

  The data transmission / reception circuits 19-1 to 19-n are interfaces for communicating voice data and control data with the key telephones (extension telephones) 30-1 to 30-n via extensions.

The storage unit 20 is a means for storing settings such as a room monitor special number, a remote transfer special number, a password, and whether or not to allow room monitoring of each extension telephone by a registration operation from the telephone, in addition to the function as a normal storage unit. .

  The key telephone 30 includes a control unit 31, a data transmission / reception circuit 32, a D / A / A / D conversion unit 33, a speech path switching unit 34, a microphone 35, a speaker 36, a handset 37, The dial key 38, the office line key 39, the function key 40, the microphone key 41, the office line lamp 42, the incoming lamp 43, the microphone lamp 44, the LCD display 45, and the sensor interface 46 are provided. Composed.

  The control unit 31 is means for analyzing and determining input information from each circuit in the telephone and controlling each circuit.

  The data transmission / reception circuit 32 is an interface for communicating voice data and control data with the key telephone main apparatus 10 via an extension.

  The D / A and A / D converter 33 is means for performing digital / analog conversion and analog / digital conversion of voice.

  The speech path switching unit 34 is means for controlling speech path switching and volume with a handset, microphone, speaker, etc. in a key telephone.

  The microphone 35 is usually used for transmitting a hands-free call, and serves as a means for picking up sounds around the telephone during room monitoring.

  The speaker 36 is a means usually used for receiving a hands-free call, and functions as a means for outputting the voice of the caller during room monitoring.

  The handset 37 is a handset for performing sending and receiving during a general call.

  The dial key 38 is a means for dialing a telephone number, and is also used as a button for performing various registration operations.

  The outside line key 39 is a button for selecting an outside line to be used from a plurality of outside lines, and a function key such as a microphone key can also be assigned thereto.

  The function key 40 is a key for holding, extension or the like generally used in a button telephone system, and the outside line key can also be used as a function key.

  The microphone key 41 is a key for turning on the microphone at the time of speaker reception. If the microphone key 41 is turned on in advance, the microphone also functions at the time of speaker reception. In the present invention, the function of the microphone key is not the fixed key but the external key. Is assigned and used.

  The external line lamp 42 is a means for displaying the state of each external line and the state of each function (when function keys are assigned) in a lamp display.

  The incoming call lamp 43 is a means for displaying a specific lamp when an incoming call is received or when a call is put on hold.

  The microphone lamp 44 is a means for displaying a microphone ON / OFF lamp.

  The LCD display 45 is a means for displaying a telephone number, information at the time of function registration, and the like.

  The sensor interface 46 is an interface that receives information from the sensor device 50-n attached to the outside of the key telephone and passes it as data to the central control unit 11 of the key telephone main device 10.

  Further, the sensor devices 50-1 to 50-n are commercially available sensors such as door sensors. The sensor device 50-1 is directly connected to the sensor detection unit 17 of the key telephone main device 10, and the sensor device 50-n is a key telephone 30. The sensor interface 46 is connected to the sensor detecting unit 17 of the key telephone main device 10.

  Each block of the key telephone system has basically the same configuration as that of the conventional key telephone system, but is necessary in the present invention by key operation from any key telephone 30-1 to 30-n. The room monitor special number, the telephone number of the specific caller, the notification destination telephone number at the time of sensor detection, the password, and the data on whether or not the room monitor can be monitored are stored in the storage unit 22 by the central control unit 11 of the key telephone main device 10. It has a feature in that.

  On the other hand, the caller number from the external line circuit required by the present invention, the data from the PB signal receiving unit 14 for receiving the push signal such as the room monitor special number operated by the caller, the sensor detection presence / absence data from the sensor detection unit 17 Is temporarily stored in the storage unit 22 by the central control unit 11.

  Further, the central control unit 11 compares the temporarily stored PB signal data with a preset room monitor special number, password, and availability of the room monitor, the temporarily stored caller number and the preset specific call. It is also used when collating with a person's telephone number and searching for a preset notification destination telephone number corresponding to the sensor when the sensor is detected.

  In response to the result of the collation processing by the central control unit 11, the central control unit 11 controls the speech path switching unit 12 at a stage where the designated extension can be monitored, and the external line circuit 13 and the data transmission / reception circuit 19 are connected. The connection is made via the hands-free control unit 17. On the other hand, the central control unit 11 controls the communication path switching unit 12 when any of the room monitor special number mismatch, the password mismatch, and the designated extension is determined in the verification process of the central control unit 11 as to whether the room monitor cannot be monitored. A tone sending unit 15 is connected to the external line circuit 13 to send a busy tone to notify that the operation is wrong.

  Further, by connecting the sensor device 50-1 to the key telephone main device 10, when the sensor detection unit 17 detects the sensor operation, the central control unit 11 automatically makes a call to the telephone number stored in the storage unit 22, and sends the call. After the previous response, the voice guidance sending unit 16 is connected to the external line circuit 13 to notify the sensor operation by voice, and the PB signal receiving unit 14 is connected to the external line circuit 13 to receive the push signal operated by the notification destination telephone.

  The cable used for wiring between the key telephone main unit 10 and the key telephone 30 is usually four cores. However, since only two cores are required as the function of the telephone, the remaining two cores are used and the key telephone side is used. By providing the sensor interface 46, the sensor device 50-n can be installed near the telephone so that the wiring between the key telephone main unit 10 and the key telephone 30 can be used as it is. It is not necessary to perform wiring from the device 10 to the sensor. It is sufficient to connect the sensor device 50-n to a key telephone.

  An outline of functional configurations in the central control unit 11 and the storage unit 20 in the circuit block diagram of FIG. 3 will be described with reference to FIG. The central control unit 11 includes a connection processing unit 111, a collation processing unit 112, a registration processing unit 113, an outside line control unit 114, and an extension control unit 115.

  The connection processing unit 111 is a unit having a function of giving an instruction to the communication path switching unit 12 in order to perform the exchange process of the key telephone main device 10.

  The collation processing unit 112 collates and analyzes the contents stored in the special number information storage unit 201 and the extension information storage unit 202 and the information input from each unit / circuit, This means has a function of determining an instruction to the means / circuit.

  The registration processing unit 113 is a unit having a function of performing processing for storing various registration operations from the key telephone 30 in the storage unit.

  The storage unit 20 is provided with special number information storage means 201, extension information storage means 202, and temporary storage means 203.

  In the special number information storage means 201, a room monitor special number, a remote transfer special number, a password, a telephone number of a specific caller, a notification destination telephone number when a sensor is detected, and the like are set and stored by a registration operation from the telephone.

  The extension information storage means 202 includes an extension number, room monitor availability setting information for each extension, speaker reception volume level information for each extension, speaker reception volume information for room monitoring, handset reception volume level information for each extension, and each extension. Microphone ON / OFF information and other information are stored.

  Temporary storage means 203 temporarily stores a caller telephone number, received PB signal data from a PB signal receiving unit, dial data from an extension, information on presence / absence of sensor detection from a sensor detection unit, and the like.

  When registration data is received from the data transmission / reception circuit 19-n connected to the key telephone 30-n, the registration processing means 113 causes the room monitor special number, password, telephone number of the specific caller, and notification destination telephone number when the sensor is detected. Etc. are stored in the special number information storage means 201, and data on whether or not room monitoring is possible for each extension is stored in the extension information storage means 202. When the volume key operation on the telephone side is performed while the speaker is receiving a speaker on the telephone, the speaker reception volume level corresponding to the operated extension is stored in the extension information storage means 202, and the speaker reception state is set in a state other than the room monitor state next time. Even when it becomes, the speaker reception volume is determined according to the stored contents. In addition, the extension information storage means 222 also stores the speaker reception volume level during room monitoring.

  Data from the PB signal receiving unit 18 is stored in the temporary storage unit 203, and the collation processing unit 112 stores the room monitor special number, the remote transfer special number, the password, the extension number of the extension information storage unit 202, and the like. The extension is checked against the availability of room monitoring for each extension. The communication path switching unit 12 is controlled by the connection processing unit 111 according to the collation result.

  The presence or absence of the operation of the sensor device is stored in the temporary storage means 203 as data from the sensor detection unit 17, and when the sensor is operated, the sensor corresponding to the sensor number stored in the storage means 201 such as the sensor number and the special number information The notification destination telephone number at the time of detection is determined by the collation processing means 112, the outside line control means 114 and the connection processing means 111 are controlled, and the call is automatically transmitted to the outside line. After the destination responds, the push signal pressed by the destination telephone is output by the PB signal receiving unit 18 as data and stored in the temporary storage means 203. The collation processing means 112 stores the room monitor special number in the special number information storage means 201, The password and the extension number of the extension information storage means 222 are compared with the room monitor availability for each extension. The communication path switching unit 12 is controlled by the connection processing unit 111 according to the collation result.

  Next, the operation flow on the key telephone main device 10 side in the above embodiment will be described with reference to FIG. When there is an incoming call on the outside line and the function for receiving the caller number such as a number display is used, the caller number is received (S101). This caller number is verified by the verification processing means 112 as to whether it is the telephone number of the specific caller (S102). If they match, the key telephone main unit 10 automatically responds (S103), and the connection processing means 111 switches the call path. The unit 12 is controlled to connect the outside line to the tone sending unit 15 or the voice guidance sending unit 16 and the PB signal receiving unit 18 and send the primary response signal to the outside line (S104).

  When the caller who has listened to the primary response signal dials the room monitor special number, the key telephone main device 10 receives the push signal at the PB signal receiver 18 (S105) and stores it in the temporary storage means 203. The room monitor special number stored in the special number information storage means 201 and the special number received by the PB signal receiving unit 18 are collated by the collation processing means 112 (S106). Is matched with the special number (S118). If there is a corresponding special number, various special number operations are performed (S119), and if there is no finally matching special number, the communication path switching unit 12 is controlled by the connection processing unit 111, and the outside line and the tone transmission unit 15 are connected. Medium sound transmission (S120).

  If the collation result of the room monitor special number is coincident in step S106, the collation processing unit 112 compares the password received by the PB signal receiving unit 18 (S107) and the password stored in the special number information storage unit 201. (S108), if there is a mismatch, the communication path switching unit 12 is controlled by the connection processing unit 111, and the outside line circuit 13 and the tone sending unit 15 are connected to send the busy tone (S109). .

  If the passwords match in step S208, the collation processing unit 112 checks whether the monitored room can be monitored for the extension number received by the PB signal receiving unit 18 (S110). Inquiry (S111), if the room monitor is not possible, the communication path switching unit 12 is controlled by the connection processing unit 111, and the outside line circuit 13 and the tone transmission unit 15 are connected to transmit busy sound (S112). When the room monitor is possible, the speaker reception volume setting level and microphone ON / OFF setting data for each extension stored in the extension information storage means 202 are ignored, and the key telephone 30A of the designated extension number is monitored during room monitoring. The control data for operating the speaker and the control data for operating the microphone are transmitted at the speaker reception volume (S113), the communication path switching unit 12 is controlled by the connection processing means 111, and the button telephone main device 10 As processing, the external line circuit 13 and the designated internal line data transmission / reception circuit 19-1 are connected to the hands-free control unit 14 (S114). In this state, the room monitor state is established.

  In the room monitor, when the outside line side ends the call (S115), when the outside line control means 114 detects the call end, control data for setting the speaker OFF and the microphone OFF is transmitted to the key telephone 30A (S116). The connection processing unit 111 returns the call path switching unit 12 to the standby state (S117).

  As described above, when a person who performs room monitoring is specified, a telephone number of a mobile phone or the like is registered in advance in the key telephone main device 10 so that the key telephone master can be used from the outside using the mobile phone. Room monitoring can be performed via the extension telephone 30A of the apparatus 10, and a general push signal can be used to designate an extension telephone to shift to the room monitor. Therefore, the selection range of telephones used on the outside line is widened.

  The above is the case where the caller number is received and the caller number is a registered caller number, but when the caller number cannot be received or is received but not registered, It is determined whether the incoming call outside line is in the answering machine mode (S201). In the answering machine mode, the key telephone main device 10 automatically responds (S202), sends a response message to the outside line from the voice guidance sending unit 16 (S203), and controls the communication path switching unit 12 by the connection processing unit 111. Then, the external line circuit 13 and the PB signal receiving unit 18 are connected. When the response message is sent, a push signal sending operation of the caller is performed, and the data received by the PB signal receiving unit 18 is collated to check whether it is a remote transfer special number registered in the special number information storage means 201 (S205), If there is no match, the answering machine mode operation is performed (S206). If there is a match, the communication path switching unit 12 is controlled by the connection processing unit 111, and the outside line circuit 13 and the tone sending unit 15 are connected to send the primary response signal to the outside line ( S104).

  If the answering machine mode determination (S201) is not in the answering machine mode, it is determined whether it is a DID setting outside line (S301). If it is not a DID setting outside line, various incoming calls are performed (S303). The main device 10 automatically responds (S302), the communication path switching unit 12 is controlled by the connection processing unit 111, and the external line circuit 13, the tone transmission unit 15, or the voice guidance transmission unit 16, and the PB signal reception unit 18 are connected to the primary circuit. The response signal is transmitted (S104).

  If there is an outside line that is equivalent to DID when the extension side telephone does not respond for a certain time as a setting of the key telephone main device 10, this outside line is also defined as a DID outside line.

  As described above, when there is an outside line set in the answering machine mode or a DID setting outside line when going out, an extension number can be designated without using a sub-address as long as the telephone can send a general push signal. The room can be monitored from the outside via the extension telephone 30A of the key telephone main device 10 without selecting a telephone to be used.

  FIG. 6 shows that when the sensor device 50-1 is connected to the key telephone main device 10 and the sensor device 50-1 detects an abnormality, the sensor detection unit 17 recognizes the sensor operation, and the outside line control means 114 has the special number information or the like. A flow is shown from the time when a call is automatically made to a notification destination telephone number when a sensor is detected in the storage means 201 and the notification destination responds to an incoming call. When the notification destination telephone responds, guidance (may be a tone) for notifying sensor detection is sent from the voice guidance sending unit 16 (which may be the tone sending unit 15) (S401). After the completion of the guidance transmission (S402), it is determined whether remote transfer is possible with reference to the special number information storage means 201 (S403). If remote transfer is impossible, the outside line is disconnected (S423), and if remote transfer is possible, connection is established. The communication path switching unit 12 is controlled by the processing unit 111, and the external line is connected to the tone transmission unit 15 or the voice guidance transmission unit 16 and the PB signal reception unit 18, and the primary response signal is transmitted to the external line (S404). After step S404, the process proceeds in the same manner as step S104 in FIG. If a room-monitored telephone corresponding to the sensor is set (S421), the notification destination telephone can move to the room monitor without performing a push signal transmission operation. Through this flow of processing, the sensor device 50-1 is notified to the outside when it detects an abnormality, and at the same time, it is possible to monitor the room by instructing with a general push signal, and confirm whether there is an abnormality in the room by sound. This can increase the usefulness of the room monitor.

  An example of performing room monitoring of one extension telephone 30B connected to the key telephone main apparatus 10 from the other extension telephone 30A will be described with reference to FIG. In the following description, the transmitting side telephone 30B is connected to the data transmission / reception circuit 19-n, and the room monitor side telephone 39A is described as an example in which the data transmission / reception circuit is connected to 19-1. Push signals are used for operations when room extension monitoring is performed by selecting a specific extension telephone from outside the office, but dial information varies depending on the type of telephone (button telephone, single telephone) for outgoing calls. Therefore, the dial data is received (S501). When the outgoing telephone 30B is a single telephone connected to an extension, the dial data is a dial pulse or a push signal. The processes in steps S502 to S508 are basically the same as steps S106 to S112 in FIG. 5 although the reception route of dial data sent from the caller is different.

  Dial data (special number, password, extension number, etc.) received by the extension control means 115 is stored in the temporary storage means 203. When the collation processing unit 112 collates the room monitor special number stored in the special number information storage unit 201 and the dial data (special number) stored in the temporary storage unit 203 (S502) and determines that they do not match Is collated with another special number or extension number (S514). If they match, various special number operations or normal extension calls are made (S515).

  If there is no finally matching special number, the communication path switching unit 12 is controlled by the connection processing unit 111, and the data transmission / reception circuit 19-n of the transmission side extension and the tone transmission unit 15 are connected to transmit the busy tone (S516). It becomes.

  If the result of the room monitor special number matching process (S507) is a match (room monitor special number), the password stored in the special number information storage means 201 and the dial data (password) stored in the temporary storage means 203 are continuously displayed. ) (S503) is compared with the central control means 11 (S504), and if there is a mismatch, the connection processing means 111 controls the speech path switching unit 12 to connect the data transmission / reception circuit 19-n of the transmission side extension. The tone sending unit 18 is connected to send a busy tone (S505). If the passwords match, the collation processing unit 112 inquires of the extension information storage unit 222 whether it is possible to monitor the room for the dial data (extension number) stored in the temporary storage unit 223 ( S507), when the room monitor is not possible, the communication path switching unit 12 is controlled by the connection processing unit 111, and the data transmission / reception circuit 19-n of the outgoing side extension telephone 30A and the tone transmission unit 15 are connected to transmit the busy tone. (S508). When the room monitor is possible, the speaker reception volume setting level and microphone ON / OFF setting data for each extension stored in the extension information storage unit 202 are ignored, and the speaker reception at the time of room monitoring for the key telephone 30A is ignored. Control data for operating the loudspeaker and control data for operating the microphone are transmitted (S113), the speech path switching unit 12 is controlled by the connection processing means 111, and is transmitted as a process in the button telephone main device 10. The data transmitting / receiving circuit 19-n of the side extension telephone 30B and the data transmitting / receiving circuit 19-1 of the designated extension are connected to the hands-free control unit 17 (S510). In this state, the room monitor state is established.

  When the calling side telephone 30B ends the call during the room monitor (S511), when the extension control means 115 detects the end of the call, the key telephone 30A is sent via the data transmission / reception circuit 19-1 for the button telephone that has been monitored. Control data for setting the speaker OFF and the microphone OFF is transmitted (S512), and the connection processing means 111 returns the speech path switching means 12 to the standby state (S513).

  In this way, it is possible to monitor the room from the extension telephone connected to the key telephone main apparatus 10 to other extension telephones as well as the outside, so whether the empty conference room is really empty in the office. It is possible to monitor whether there is a suspicious person in a place where people are not usually present, such as a warehouse, without going to that place.

  The movement of the extension telephone 30A on the room monitor side during room monitoring will be described with reference to FIG. The data transmission / reception circuit 32 of the extension telephone 30A on the room monitor side receives the telephone control data at the time of room monitoring from the key telephone main device 10 and transfers it to the control unit 31 (S601). The control unit 31 controls the speaker reception volume of the speech path switching unit 34 to a prescribed volume during room monitoring different from the normal time (S602), and connects the speech path switching unit 34 to the microphone 35 and the speaker 36 (S603). During room monitoring, the microphone 35 can be turned on without the operation of turning on the microphone key 41 of the extension telephone 30A on the room monitor side in advance. Even if the microphone functions during room monitoring, the microphone lamp 44 is not controlled unlike during a normal hands-free call.

  On the other hand, on the key telephone main device 10 side, as shown in the examples of FIGS. 5 to 7, the hands-free control unit 14 is connected by the communication path switching unit 12 and is in a state where hands-free communication is possible. Therefore, the extension telephone 30A on the room monitor side enters the room monitor state (S604). When the caller ends, the extension telephone 30A on the room monitor side receives the standby telephone control data from the key telephone main apparatus 10 side (S605), and switches the telephone to the standby state (S606).

  As described above, the microphone ON operation, the speaker reception ON state, and the speaker volume optimum state necessary for the room monitor are made without performing the microphone ON and speaker volume adjustment on the key telephone 30A side on the room monitor side in advance. be able to.

  Explaining from an example of a call from an external line, the microphone 35 of the extension telephone 30A on the room monitor side → the telephone call path switching unit 34 → the D / A, A / D conversion unit 33 → the data transmission / reception circuit 32 of the telephone → the key telephone In the route of the data transmission / reception circuit 19-1 → the communication path switching unit 12 → the hands-free control unit 14 → the communication path switching unit 12 → the external line circuit 13-1 of the main device 10, the caller from the outside line is connected to the room monitor side. The sound around the extension telephone 30A can be heard. On the contrary, when a caller from the outside line puts a voice from the transmitter, the outside line circuit 13 → the communication path switching unit 12 → the hands-free control unit 14 → the communication path switching unit 12 → the data transmission / reception circuit 19 of the key telephone main device 10 → Data transmitting / receiving circuit 32 of extension telephone 30A on the room monitor side → D / A, A / D conversion section 33 → speech path switching section 34 → speaker can be output from speaker 36 of extension telephone 30A through the route of speaker 36 .

Functional block diagram of a key telephone main device constituting the key telephone system of the present invention Schematic diagram of the configuration of the button telephone system of the present invention Schematic block diagram showing an embodiment of the button telephone system of the present invention Functional block diagram of the central control unit and storage unit of the key telephone main device 10 of the present invention Schematic flowchart of the key telephone main device 10 side at the time of room monitoring from an outside line of the present invention Schematic flowchart of the key telephone main device 10 side at the time of room monitoring from an outside line at the time of sensor detection of the present invention Schematic flowchart of the key telephone main unit 10 side at the time of room monitoring from the extension of the present invention Extension telephone side schematic flowchart at the time of room monitoring of the present invention

Explanation of symbols

10 Key telephone main unit 30 Extension telephone (button telephone)
35 Microphone 36 Speaker 50 Sensor device 70 Public network 75 Base station 90 Telephone (mobile phone; PHS)

Claims (3)

In a key telephone system comprising a key telephone main unit having one or more external lines and a plurality of extensions, and a plurality of extension telephones connected to the extensions,
A sensor for detecting an abnormality is connected to at least one of the plurality of extension telephones,
The key telephone main unit immediately shifts the extension telephone to the room monitor operation by hands-free call when receiving an incoming call, automatically operates the microphone regardless of the microphone setting of the extension telephone, and sets the extension at the speaker volume level at the room monitor. Hands-free call means for instructing room monitor operation to automatically operate the speaker of the telephone,
The extension telephone is provided with room monitor operation means for operating a microphone in accordance with an instruction from the key telephone main unit regardless of prior microphone operation registration and operating a speaker at an instructed volume during room monitoring. And button phone system. In a key telephone system comprising a key telephone main unit having one or more external lines and a plurality of extensions and a plurality of extension telephones connected to the extensions,
A sensor for detecting an abnormality is connected to at least one of the plurality of extension telephones,
The key telephone main unit includes a room monitor special number storage unit that stores a room monitor special number that immediately shifts an extension telephone to a room monitor operation based on a hands-free call when an incoming call is received, and an external line that is automatically called when the sensor detects an abnormality. Storage means such as special number information having an automatic call telephone number storage unit in case of abnormality for storing the telephone number of the extension;
Extension information storage means having a sensor-compatible in-room monitor telephone storage unit that stores a designated extension telephone number corresponding to each sensor, and a room monitor speaker reception volume level storage unit that stores a speaker volume level during room monitoring;
An abnormal time calling means for automatically calling the telephone number of the external line or extension when the sensor detects an abnormality and notifying the abnormality after a call destination response;
Push signal reception mode transition means for transitioning to a push signal reception mode after notification of abnormality,
A push signal analyzing means for analyzing a push signal pressed by a call destination;
When the room monitor special number designated by the callee is detected, the microphone is automatically operated from the designated extension telephone number stored in the sensor-corresponding room monitor telephone storage unit regardless of the microphone setting of the designated designated extension telephone, and at the time of room monitoring. Hands-free calling means for instructing a room monitor operation to automatically operate a speaker of a designated extension telephone at a speaker volume level;
A call path switching means for connecting the external line or extension and the designated designated extension telephone to a hands-free call means,
The extension telephone is provided with room monitor operation means for operating the microphone in accordance with an instruction from the key telephone main unit and operating the microphone regardless of a prior microphone operation registration so that the speaker is operated at the volume at the time of room monitoring. When there is a room monitor instruction from the external line or extension to the designated designated extension telephone, the voice of the called party is output from the speaker according to the speaker reception volume stored in the speaker reception volume level storage unit at the time of room monitoring A button telephone system characterized by: In a key telephone main apparatus that constitutes a key telephone system in combination with a plurality of extension telephones having microphones and speakers,
Connected to one or more external lines and a plurality of extensions, at least one of the plurality of extension telephones is connected to a sensor for detecting an abnormality,
A room monitor special number storage unit that stores a room monitor special number that immediately shifts an extension telephone to a room monitor operation by a hands-free call when an incoming call is received, and a telephone number of an external line or extension that is automatically called when the sensor detects an abnormality Special number information storage means having an abnormal time automatic telephone number storage unit;
Extension information storage means having a sensor-compatible in-room monitor telephone storage unit that stores a designated extension telephone number corresponding to each sensor, and a room monitor speaker reception volume level storage unit that stores a speaker volume level during room monitoring;
An abnormal time calling means for automatically calling the telephone number of the outside line or extension when the sensor detects an abnormality and notifying the abnormality after a call destination response;
Push signal reception mode transition means for transitioning to a push signal reception mode after notification of abnormality,
A push signal analyzing means for analyzing a push signal pressed by a call destination;
When the room monitor special number designated by the callee is detected, the microphone is automatically operated from the designated extension telephone number stored in the sensor-corresponding room monitor telephone storage unit regardless of the microphone setting of the designated designated extension telephone, and at the time of room monitoring. Hands-free calling means for instructing a room monitor operation to automatically operate a speaker of a designated extension telephone at a speaker volume level;
A key telephone main apparatus comprising: a call path switching means for connecting the external line or extension and a corresponding designated extension telephone to a hands-free call means.

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