JP3705053B2 - Private branch exchange system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a private branch exchange system comprising a main unit and a dedicated extension telephone connected to the main unit.
[0002]
[Prior art]
Conventionally, when private branch exchange systems including dedicated extension telephone equipment are to be sold to countries around the world, telephone characteristics standards (for example, FCC standards in the United States and ETSI standards in Germany) conform to each country. Must. These telephone characteristics standards are almost the same in some countries, but there are many different countries. Therefore, it is necessary to respond by changing the hardware etc. on the dedicated extension telephone side. As a result, multiple telephone characteristics (transmission / reception) Dedicated telephones with different levels and frequency characteristics are required. In addition to the restrictions on the telephone characteristics standards of each country, different characteristics (bell ringtone, speakerphone level, etc.) may be required depending on market demands.
[0003]
[Problems to be solved by the invention]
However, in the above cases, it was necessary to manufacture multiple products for each destination of the same model, and it was extremely burdensome in terms of development cost, manufacturing cost, and product distribution. Had become a stumbling block when doing.
[0004]
In view of the above-described conventional problems, an object of the present invention is to share a private extension telephone.
[0005]
[Means for Solving the Problems]
The present invention is to solve the conventional problems described above, there is provided a private branch exchange system which have a dedicated extension telephones and private branch exchanges, private branch exchange, the installation site storage section that stores the location code corresponding to the location code has a characteristic storage section for storing the characteristic correction value code for setting a characteristic of dedicated extension telephones and, the extension interface unit which communicates with the dedicated extension telephones, private extension telephone is communicating with the private branch exchange A data communication unit for carrying out communication, a characteristic correction value storage unit for storing characteristic correction value codes transmitted from the private branch exchange, a model characteristic storage unit for storing functions and characteristic setting data for supporting the telephone model, and an initial and a initial characteristics storage unit for storing a control value set properties as values, first private extension telephone selects its model based on the data of the model characteristic storing unit Initial characteristics determining a control value in accordance with the storage unit, then the private branch exchange transmits a dedicated extension telephones retrieves the characteristic correction value code corresponding to the location code from the characteristic storage section, further, dedicated extension telephones sent properties The private branch exchange system is characterized in that after the correction value code is stored in the characteristic correction value storage unit, the control value of the initial characteristic storage unit is corrected and set in accordance with the characteristic correction value code . With the configuration of this private branch exchange system, it is possible to realize a private telephone system that can share a dedicated extension telephone corresponding to the standard for each installation location .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The first invention in the present invention, there is provided a private branch exchange system and method of setting the dedicated extension telephones to have a dedicated extension telephones and private branch exchanges, private branch exchange, the installation site storage section that stores the location code, installed A characteristic storage unit storing a characteristic correction value code for setting the characteristic of the dedicated extension telephone corresponding to the location code; and an extension interface unit for communicating with the dedicated extension telephone. A data communication unit that communicates with the exchange, a characteristic correction value storage unit that stores a characteristic correction value code transmitted from the private branch exchange, and a model characteristic memory that stores functions and characteristic setting data for the telephone model parts and has an initial characteristic storage section for storing a control value of the set characteristic as an initial value, first dedicated extension telephones group data model characteristic storing unit Select can own model determines a control value in accordance with the initial characteristic storage unit, then the private branch exchange transmits a dedicated extension telephones retrieves the characteristic correction value code corresponding to the location code from the characteristic storage section, further, The private extension system stores the transmitted characteristic correction value code in the characteristic correction value storage unit, and then corrects and sets the control value of the initial characteristic storage unit in accordance with the characteristic correction value code, and its private branch exchange system This is a method for setting a dedicated extension telephone.
Thereby, it has the effect | action that the characteristic of a private extension telephone is set according to each installation place. For example, by setting the installation code 1 for Germany and the installation code 2 for the United States in advance, it is possible to transmit the telephone characteristic data to be set to the dedicated extension telephone from this code. Therefore, the private branch exchange can be shared by storing all the telephone characteristic data corresponding to the installation location code in the characteristic storage unit.
In particular, the telephone characteristics can be automatically changed according to the characteristic correction value code sent from the private branch exchange . For example, the level etc. can be adjusted with an electronic volume so that the dedicated extension telephone can correspond to the telephone standards of each country. If it can be set, it has the effect that the dedicated extension telephone can be shared.
[0007]
The second invention in the present invention, in addition to the above-described first invention, only the extension phone, the period from the PBX to the characteristic correction value code or when transmitted not transmitted, the characteristics of the initial characteristics storage unit The telephone characteristic of the dedicated telephone is controlled by the control value .
As a result, even when connected to a main unit that does not have a mechanism for transmitting the characteristic correction value code to the dedicated extension telephone, the basic characteristic as a telephone is secured by appropriately setting the initial correction value setting data of the telephone. It has the effect that it becomes possible.
[0008]
According to a third invention of the present invention, in addition to the first and second inventions described above, the dedicated extension telephone has an input means, and is stored in the characteristic correction value storage unit by inputting predetermined information from the input means . The characteristic correction value code can be changed .
Thus, the characteristic correction value data in the characteristic correction value storage unit can be changed by inputting predetermined information from the input means , and even a user of a dedicated extension telephone can easily change the telephone Since the characteristics can be changed, it is possible to provide a private branch exchange system that is convenient.
[0010]
The fourth aspect of the present invention relates to the side tone characteristics of the dedicated extension telephone in addition to the above-mentioned first aspect of the invention, and the private branch exchange is capable of using a supplemental office line as an analog or digital office line interface. The dedicated extension telephone has a side-tone attenuator that attenuates the transmitted voice signal to make the side sound, and has characteristics relating to the attenuation amount of the side-tone attenuator. The characteristic correction value code of the correction value storage unit is effective when the office line interface is used for a digital office line. In particular, the dedicated extension telephone sets the attenuation amount of the sidetone attenuator in the characteristic correction value code of the characteristic correction value storage unit to infinite when the private branch exchange transmits that the office line type data is an analog station line. It is characterized by doing.
[0011]
Since the sidetone level can be changed for each connection type of the line connected to the dedicated extension telephone, it can be set in the characteristic storage unit so that the sidetone level is the same for all connection types. For example, it is possible to provide a call with a constant sidetone level and no sense of incongruity to all connection destinations. Further, it has an effect that the side sound level suitable for the user of the dedicated extension telephone can be obtained.
[0012]
The connection type data are two types of data, digital line and analog line. If the data type is digital line, the side sound level is increased. If the data type is analog line, the side sound level is reduced. Thus, even when a digital line with little return and an analog line with many returns are used, the side sound level is the same, and there is an effect that it is possible to provide a call without a sense of incongruity.
[0013]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
(Embodiment 1)
FIG. 1 shows the configuration and block diagram of the main apparatus of the private branch exchange system and its dedicated extension telephone according to Embodiment 1 of the present invention.
[0015]
In FIG. 1, 1 is a main unit, 2 is a office line, and 3 is a dedicated extension telephone.
[0016]
The main device 1 includes an extension interface having a data communication circuit for exchanging voice data, control data, and the like with a dedicated extension telephone 3 and an office line interface unit 4 having an analog station interface and a digital station interface. Connected to the unit 5, the installation location code switch 6 that is composed of 3 bits SW (SW3 to SW5) to set the installation location code, and the switch value is determined for each installation location, and a personal computer etc. In addition, the serial port 7 capable of data communication with the control unit 10 of the main apparatus 1 and data for setting the call characteristics and DTMF characteristics of the dedicated extension telephone are stored, and the characteristics are manufactured in advance. Characteristic storage unit 8 set via a personal computer or the like connected to the serial port 7 and the installation location code The installation location code is stored and the installation location code is set from the installation location code switch 7 when the power is turned on or through a personal computer connected to the serial port 7, and the main device control unit 10 for controlling the main device as a whole. It is configured with.
[0017]
The dedicated extension telephone 3 adjusts the frequency characteristics of the data communication unit 11 for performing data communication with the main device 1, the codec 12 for converting the analog signal and the digital signal (PCM signal) in the voice band, and the handset reception. For adjusting the frequency characteristics of the handset transmission, the filter circuit 15 for adjusting the frequency characteristics of the handset transmission, the electronic volume 16 for adjusting the handset transmission level, the handset 17, and the handset. Side-tone adjusting electronic volume (attenuator) 18, filter circuit 19 for adjusting the frequency characteristics of hands-free reception, electronic volume 20 for adjusting the level of hands-free reception, speaker 21, and microphone 22 To adjust the frequency characteristics of hands-free transmission And the electronic volume 24 for adjusting the level of the hands-free transmission, the terminal 1 side is the handset call, the terminal 2 side is the hands-free transmission, and the voice path switch 25 between the handset call and the hands-free transmission A DTMF generator 26 for generating a DTMF signal to be sent to a local line and a bell ring tone of a dedicated extension telephone, an electronic volume 27 for setting a transmission level of the DTMF signal, and a level of the bell ring tone Model including an electronic volume 28 for dialing, input means 29 such as a dial and a keyboard for realizing various functions, and a 2-bit switch (SW6, SW7) for setting the model code of the dedicated extension telephone 3 A type selection switch 30, a telephone control unit 31 that controls the entire dedicated extension telephone 3, When a correction code is sent from the device 1, a characteristic correction value storage unit 32 for storing the code and functions and characteristic setting data (model A data, model B data,...) For a plurality of models are stored in advance. A model characteristic storage unit 33 that is capable of supporting a plurality of types of extension telephones even if it is one type of one-chip microcomputer that is stored and cannot be rewritten, and is preset as an initial value An initial characteristic storage unit 34 for storing characteristic control values is provided.
[0018]
FIG. 2 shows an example of data written in the characteristic storage unit 8 of FIG. 1 for setting the characteristics of the dedicated extension telephone. 50 in the figure is 3 bits stored in the installation location storage unit. Installation location code indicating the installation location of the configuration, 51 is a setting item relating to handset call characteristics (level, wide frequency characteristics, low frequency characteristics, sidetone level), 52 is a hands free call characteristic (level, wide frequency characteristics, low frequency) (Frequency characteristics, side sound level) are set items, 53 is a bell volume maximum value and minimum value setting, and 54 is a DTMF output level setting item. Reference numeral 55 denotes station line type information for distinguishing whether an analog station line is used or a digital station line is used, and side sound control during handset call is performed based on this information. Is for. Data of these characteristics is set as a characteristic correction value code composed of 4 bits as indicated by 56. The characteristic correction value code corresponding to the installation location code is transmitted to the dedicated extension telephone.
[0019]
FIG. 3 is a characteristic correction value conversion table corresponding to the characteristic correction value code 56 sent from the main apparatus and stored in the correction value storage unit 32. This characteristic correction value conversion table is based on the information of the characteristic correction code 56 and the electronic volume (14, 16, 20, 24, 27, 28), the filter circuit (13, 15, 19, 23), and the attenuator 18. It is used to determine the control value and is executed by the telephone control unit 31. For example, when the handset transmission level sent as the characteristic correction value code 56 is “0010”, the electronic volume 16 is set to be +2 dB from the characteristic correction value conversion table.
[0020]
Hereinafter, the operation of each part in the first embodiment will be described with reference to the flowcharts of FIGS.
[0021]
When the main apparatus 1 is powered on (S1), the installation location code 50 selected by the installation location code switch 6 is stored in the installation location storage unit 9 (S2), and the characteristic correction code corresponding to the stored installation location code is stored. 56 is read from the characteristic storage unit 8 (S3). Next, it is confirmed by the data communication circuit whether or not the dedicated extension telephone 3 is connected to the extension interface unit 5 (S4), and when the dedicated extension telephone 3 is newly connected (S5), it is read in S3 above. The characteristic correction code 56 is transmitted to the dedicated extension telephone 3 (S6).
[0022]
On the other hand, when the dedicated extension telephone 3 is connected to the main apparatus 1 (S7), the state of the model type selection switch 30 is first read and the model of the dedicated extension telephone 3 is selected (S8). Each electronic volume (14, 16, 20, 24, 27, 28), each filter circuit (13, 15, 19, 23), and attenuator 18 according to a code set as an initial value in the initial characteristic storage unit 34 in advance. A control value is determined (S9). Thereafter, the characteristic correction value code 56 transmitted from the main device 1 is stored in the characteristic correction value storage unit 32 (S10), and then the corresponding circuit (electronic volume, filter circuit, attenuator) corresponding to the characteristic correction code 56 is controlled. (S11).
[0023]
For example, when the installation location code stored in the installation location storage unit 9 by the installation location code switch 6 is the German country code (000), the main device 1 sends the handset transmission level (0010) as shown in FIG. ), High frequency characteristic level (0001) of handset transmission, low frequency characteristic level (0100) of handset transmission, characteristic correction value code 56 of DTMF transmission level (0011) to station line type (0001) are dedicated extensions. It is sent to the telephone 3. In response to this, the dedicated extension telephone 3 sets the handset transmission level (+2 dB), the handset transmission high frequency characteristic level (+4 dB), and the handset transmission low frequency characteristic level according to the conversion table of FIG. (-2 dB), DTMF transmission level is corrected to (0 dB).
[0024]
As described above, the initial characteristic setting data of the dedicated extension telephone 3 itself and the data download from the main device 1 complete the level setting of each electronic volume, filter circuit, and attenuator of the dedicated extension telephone 3. Even if the call characteristics standards are different at each installation location, the dedicated extension telephone 3 can be covered with one type of hardware, and it is not necessary to develop a dedicated extension telephone 3 corresponding to the standard at each installation location. Development efficiency can be improved.
[0025]
The model characteristic storage unit 33 of the dedicated extension telephone 3 controls a plurality of types of telephones (for example, A model = hands-free function model, B model = speaker model, C model = handset only model, etc.). Is also stored at the same time, and the model type is specified by the information from the model type selection switch 30. At this time, the characteristic correction value code sent from the main unit 1 is sent to the dedicated extension telephone 3 in a form covering all the characteristics of all functions, but unnecessary data (for example, for the C model). The hands-free call characteristic correction value (52 is not required) is automatically ignored upon recognition of the phone type, so only one data format is required between the main unit 1 and the dedicated extension phone 3. Instead, efficient control becomes possible.
Further, by masking a program such as a one-chip microcomputer and providing a model code setting unit outside the microcomputer, it is not necessary to make a masked microcomputer for each model, and the cost can be reduced.
[0026]
Furthermore, for the characteristics set based on the above-described flow, for a request such as changing specific characteristics for each extension individually (for example, raising the reception level of the handset), a dedicated extension After inputting the characteristic setting item code 57 to be changed from the input means 29 such as the keyboard of the telephone 3, by inputting desired data from the characteristic correction value code 58, it is set in the characteristic correction value storage unit 32. The correction value can be rewritten, and the setting of the target characteristic can be changed.
[0027]
In addition, since the initial characteristic storage unit stores the initial correction value setting data set in advance, when connected to the main apparatus 1 having no mechanism for transmitting the characteristic correction value code to the dedicated extension telephone 3 However, it is possible to ensure basic characteristics as a telephone by appropriately setting the initial correction value setting data of the telephone.
[0028]
(Embodiment 2)
In FIG. 1, it is assumed that the dedicated extension telephone 3 uses a digital station line using the handset 17 and shows a state in which a call is being made with the other party. The operation of the side sound control will be described using this.
[0029]
The audio signal from the office line 2 is received by the handset 17 via the office line interface 4 → the extension interface 5 → the data communication circuit 11 → the codec (CODEC) 12 → the filter 13 → the amplifier 14. Similarly, an audio transmission signal from the handset 17 is transmitted to the filter 15 → the amplifier 16 → the codec (CODEC) 12 → the data communication circuit 11 → the extension interface 5 → the office line interface 4 → the office line 2. At this time, a part of the transmitted voice signal that has passed through the amplifier 16 is attenuated by the ATT 18 to become a side sound, mixed with the received signal, and received by the handset 17 via the filter 13. However, at this time, when the dedicated extension telephone 3 supplements the analog station line in the office line interface 4 of the main apparatus 1, the correction value is based on the office line type data 55 (analog = 0000) transmitted from the main apparatus 1. The attenuation amount of the attenuator 18 is set to infinity (∞) according to the set value of the storage unit 32, the return of the handset transmission signal at the dedicated extension telephone 3 itself is completely cut off, and the return component of the signal from the office line 2 Only the side sound is received by the handset 17. The attenuation setting value of the attenuator 18 is valid only when a digital station line is used in the station line interface 4 (station line type data 55 = 0001). When an analog station line is selected, attenuation is performed as described above. The amount is infinite (∞). As a result, by adjusting the side sound level when using the digital station line, it is possible to ensure a call with no sense of incompatibility as with the analog station line.
[0030]
【The invention's effect】
As is clear from the above description, the present invention provides the private branch exchange with an installation location code, and transmits characteristic correction value data according to the code to the dedicated extension telephone. A shared telephone system can be provided. Further, since the call destination information of the dedicated extension telephone is transmitted from the main apparatus to the dedicated extension telephone, the side sound level can be corrected according to the call destination, and the effect is great.
[Brief description of the drawings]
FIG. 1 is a block diagram of a private branch exchange system according to Embodiment 1 of the present invention. FIG. 2 is a diagram showing a data configuration of a characteristic storage unit of a main unit in the private branch exchange system. FIG. 4 is a flowchart of gain setting control on the main unit side in the private branch exchange system. FIG. 5 is a flowchart of gain setting control on the dedicated extension telephone side in the private branch exchange system.
DESCRIPTION OF SYMBOLS 1 Main apparatus 2 Station line 3 Dedicated extension telephone 4 Office line interface 5 Extension interface 6 Installation place code switch 7 Serial port 8 Characteristic memory | storage part 9 Installation place memory | storage part 10 Main apparatus control part 11 Data communication circuit 12 CODEC
13 Frequency characteristic adjustment filter circuit 14 Handset reception level adjustment electronic volume 15 Frequency characteristic adjustment filter circuit 16 Handset reception level adjustment electronic volume 17 Handset 18 Handset side-tone adjustment attenuator 19 Hands-free reception frequency characteristic adjustment filter Circuit 20 Electronic volume for level adjustment of hands-free reception 21 Speaker 22 Microphone 23 Filter circuit for frequency characteristic adjustment 24 Electronic volume for level adjustment 25 Changeover switch 26 DTMF generator 27 Electronic volume for setting DTMF signal transmission level 28 Bell incoming sound level Electronic volume for adjustment 29 Input means 30 Model type selection switch 31 Telephone control unit 32 Characteristic correction value storage unit 33 Model characteristic storage unit 34 Initial characteristic storage unit

Claims (6)

A private branch exchange system which have a dedicated extension telephones and private branch exchange,
The private branch exchange includes an installation location storage unit that stores an installation location code, a characteristic storage unit that stores a characteristic correction value code for setting a characteristic of the dedicated extension telephone corresponding to the installation location code, and the dedicated An extension interface unit for communicating with an extension telephone,
The dedicated extension telephones, data communication unit for communicating with the private branch exchange, functions and characteristics of the characteristic correction value storage unit that stores characteristic correction value code transmitted, to correspond to the model of the phone from the private branch exchange A model characteristic storage unit for storing setting data, and an initial characteristic storage unit for storing control values of characteristics set as initial values ;
First, the dedicated extension telephone selects its own model based on the data of the model characteristic storage unit and determines a control value according to the initial characteristic storage unit, and then the private branch exchange determines the characteristic correction value according to the installation location code. The code is taken out from the characteristic storage unit and transmitted to the dedicated extension telephone , and the dedicated extension telephone stores the transmitted characteristic correction value code in the characteristic correction value storage unit, and then according to the characteristic correction value code A private branch exchange system characterized in that the control value of the initial characteristic storage unit is corrected and set . A method of setting a dedicated extension telephones in the PBX system that have a dedicated extension telephones and private branch exchange,
The private branch exchange includes an installation location storage unit that stores an installation location code, a characteristic storage unit that stores a characteristic correction value code for setting a characteristic of the dedicated extension telephone corresponding to the installation location code, and the dedicated An extension interface unit for communicating with an extension telephone,
The dedicated extension telephones, data communication unit for communicating with the private branch exchange, functions and characteristics of the characteristic correction value storage unit that stores characteristic correction value code transmitted, to correspond to the model of the phone from the private branch exchange A model characteristic storage unit for storing setting data, and an initial characteristic storage unit for storing control values of characteristics set as initial values ;
The dedicated extension telephone is a model selection step of selecting its own model based on the data of the model characteristic storage unit,
A control value determining step for determining a control value of the dedicated extension telephone according to the initial characteristic storage unit;
The private branch exchange, the characteristic correction value code transmission step of transmitting the characteristic correction value code corresponding to the installation location code to the dedicated extension telephone is removed from the characteristic storage section,
The dedicated extension telephone stores a characteristic correction value code storage step for storing the transmitted characteristic correction value code in the characteristic correction value storage unit;
A method for setting a dedicated extension telephone in a private branch exchange system, characterized in that the dedicated extension telephone has a characteristic correction step of correcting and setting a control value of the initial characteristic storage unit according to the characteristic correction value code . The dedicated extension telephones during from said private branch exchange to the characteristic correction value code or when transmitted not sent, the control value of said characteristic of said initial characteristic storage unit to control the telephone characteristics of the telephone 2. The private branch exchange system according to claim 1 . The dedicated extension telephones has an input means, said by predetermined information input from the input means, according to claim 1 or claims characterized in that it is a capable of changing the characteristic correction value code stored in the characteristic correction value storage unit Item 4. The private branch exchange system according to item 3 . The private branch exchange has a station interface that can be used for an analog station line or a digital station line as a supplementary station line, and can transmit station line type data to the dedicated extension telephone,
  The dedicated extension telephone has a side-tone attenuator that attenuates a transmitted voice signal to a side tone, and the characteristic correction value code of the characteristic correction value storage unit regarding the attenuation amount of the side-tone attenuator is the local line interface. 2. The private branch exchange system according to claim 1, wherein the private branch exchange system is effective when used for a digital office line. The dedicated extension telephone indicates that the office line type data is an analog station line. 6. The private branch exchange system according to claim 5, wherein when transmitted from the private branch exchange, an attenuation amount of the side sound attenuator is set infinitely in the characteristic correction value code of the characteristic correction value storage unit.

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