JPH0851475A - Communication terminal equipment and key telephone system - Google Patents

Abstract

PURPOSE:To reduce the frequency of adjustment of receiving sound volume by enabling the proper setting of the initial value of the receiving sound volume at the time of starting call. CONSTITUTION:In a sound volume information table 16a, prescribed sound volume information showing receiving sound volume is stored by corresponding to the number corresponding to other communication terminal equipment. At the time of starting a call, a sound volume control means 17b instructs a telephone set control part 27 to adjust electronic volume 24 so that initial value of the incoming sound volume in a pertinent call may be the incoming sound volume shown by the sound volume information stored in a sound volume storage means if the sound volume information is stored in the storage means, corresponding to the number corresponding to a call opposite party.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device and a key telephone device capable of arbitrarily changing a reception sound volume.

[0002]

2. Description of the Related Art Conventionally, in a key telephone device, an extension telephone is equipped with an electronic volume or the like so that a receiving volume can be arbitrarily changed. In such a key telephone device, the caller can arbitrarily set the reception volume by operating a predetermined volume key button during a call.

By the way, there are cases where the reception volume at the start of a call is set to a predetermined standard volume and cases where the volume set at the end of the last call is continuously set.

However, since the call condition (call loss due to the line, surrounding conditions, etc.) varies depending on the other party of the call, the optimum receiving volume differs, and the standard volume or the volume set last time is not always optimal. Instead, the caller may have to adjust the reception volume by operating the volume key button each time the call is made.

[0005]

As described above, the prior art is as follows.
Since the initial value of the listening volume at the beginning of the call is set to the standard volume or the volume previously set, this initial value does not always become the optimal listening volume for a new call,
There was a problem that the listening volume had to be adjusted frequently.

The present invention has been made in consideration of the above circumstances, and an object thereof is to more appropriately set the initial value of the listening volume at the start of a call, which allows the listening volume to be set. It is an object of the present invention to provide a communication terminal device and a key telephone device that can reduce the frequency of adjustment of the above.

[0007]

In order to achieve the above object, the present invention stores predetermined volume information indicating a reception volume in association with a number corresponding to another communication terminal device, such as a volume information table. Volume storage means and a reception volume control means such as a volume control means. The reception volume control means stores volume information in the volume storage means at the start of a call in association with a number corresponding to a call partner. If so, the earpiece volume varying means including, for example, the electronic volume and the telephone controller is controlled so that the initial volume of the earpiece volume in the call becomes the earpiece volume indicated by the volume information stored in the volume storing means. did.

[0008]

By taking such means, at the start of a call, if the volume information is stored in the volume storage means in association with the number corresponding to the other party of the call, the initial value of the receiving volume in the call is set. The reception volume is adjusted to the volume indicated by the volume information stored in the volume storage means. Therefore, if the user sets the optimum listening volume once for each call partner, the receiving volume is automatically set to the optimal receiving volume at the beginning of the call during the subsequent calls.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram showing a main configuration of a key telephone device according to this embodiment. Here, "CLASS" provided in the United States
The key telephone device connected to an analog telephone network for performing a service called (having a function of notifying a calling party number to a called party) is illustrated.

This key telephone system comprises a main unit 1 and m extension telephones 2 (2-1 to 2-m) respectively connected thereto.
The main device 1 includes a time switch 10, a timing generation circuit 11, and n station line interface units 12 (12-1 to 12-).
12-n), m extension interface units 13 (13-1
~ 13-m), n number of caller number detection units 14 (14-1 ~
14-n), the sub control unit 15, the memory 16, and the main control unit 17
The station line interface unit 12, the extension interface unit 13, and the caller number detection unit 14 are provided with a sub controller 1 via a data highway 18.
Connected to 5. The time switch 10, the sub control unit 15 and the memory 16 are connected to the main control unit 17 via the bus 19.

The time switch 10 includes a station line interface unit 12 and an extension line interface unit 1.
3 are connected to each other via the PCM highway 20, and the control and timing generation circuit 1 of the main controller 17 is connected.
PCM based on various timing signals generated in 1.
By exchanging the time slots on the highway 20, the station line interface unit 12 and the extension interface unit 13 are arbitrarily exchanged and connected.

The station line interface unit 12 has n
Book office lines 3 (3-1 to 3-n) are connected to each.
As shown in FIG. 2, the office line interface unit 12 is
An incoming call detection circuit 120, a rectifier circuit 121 including a diode bridge, a direct current control circuit 122, and a codec 123 that performs PCM encoding and decoding of a voice signal.
And a control unit 12 for controlling this unit (incoming call detection, line seeds, dial transmission, etc.) under the control of the main control unit 17.
It has a well-known configuration including 4 and. In this station line interface unit 12, a voice signal (analog) coming through the station line 3 is converted into a PCM signal, a PCM signal given through the time switch 10 is converted into a voice signal (analog), and a station line is received. A station line interface operation such as state monitoring of the network 3 and transmission of various signals to a network connected via the station line 3 is performed. Further, the station line interface unit 12 exchanges control information relating to the above-mentioned station line interface operation with the main control unit 1 via the sub control unit 15.
With 7

Extension telephones 2 are connected to the extension interface units 13, respectively. The extension interface unit 13 is, as shown in FIG. 3, a control unit 130 that controls transmission / reception of control data via the data highway 18.
And a memory 131 as an external storage of the control unit 130,
It has a well-known configuration including a digital transmission section 132 for transmitting and receiving control data and voice data between the extension telephone 2 and the main unit 1. In the extension interface unit 13, conversion of a voice signal (analog) output from the extension telephone 2 into a PCM signal, conversion of a PCM signal given through the time switch circuit 11 into a voice signal (analog), extension telephone 2 The internal line interface operation such as the status monitoring of the above and the transmission of various signals to the internal telephone 2 is performed. The extension interface unit 13 exchanges control information relating to the extension interface operation with the main control unit 17 via the sub control unit 15.

The sender number detecting unit 14 is connected to each of the central office lines 3. Caller ID detection unit 14
4, is output from the relay 140 for disconnecting this unit from the station line 3, the demodulation circuit 141 for receiving and demodulating the modulated signal coming through the station line 3, and the demodulation circuit 141. Serial / parallel conversion unit 142 for parallelizing received data to be received, and demodulation circuit 141
The data detection signal output from the internal data bus 143
To the data detection signal transmission unit 144 for transmitting to the relay unit 14 and the relay unit 14 for impedance matching by disconnecting this unit from the station line 3 at the time of dialing out or during a call.
It has a well-known configuration including a relay control unit 145 for controlling 0, a control unit 146 for controlling this unit, and a memory 147 as an external storage of the control unit 146. The caller number detection unit 14 receives and detects caller number data given from the network via the station line 3, and the received caller number data is transmitted via the sub-control unit 15 to the main control unit 17. Give to.

The sub-control unit 15 is mainly composed of, for example, a microcomputer, and has a station line interface unit 12 and an extension interface unit 13.
Also, the transfer of data between the caller number detection unit 14 and the main control unit 17 is mediated.

The memory 16 is used as an external storage for the main controller 17 to store various data, and a volume information table 16a and a candidate volume storage area 16b are set in a part of the area. There is. As shown in FIG. 5, the volume information table 16a is for storing volume information indicating the reception volume in association with the telephone number, and for each of the extension telephones 2-1 to 2-m. It is possible to store a plurality of sets of telephone numbers and volume information. As shown in FIG. 6, the candidate volume storage area 16b is for storing volume information set as a candidate for each extension terminal when an incoming call occurs.

The main control section 17 controls each section to realize the exchange operation. The main control unit 17 is mainly composed of, for example, a microcomputer. In addition to the well-known general control means in the key telephone main device, the volume control means 17a and the volume control means 1 are provided.
7b. Here, the volume registration means 17a, when any of the extension telephones 2-1 to 2-m ends the call,
The volume information corresponding to the reception volume set for the extension telephone is registered in the volume information table 16a in association with the telephone number of the other party of the call. Further, the volume control means 17b is used for the caller number detection unit 14-1 when receiving a call.
Based on the caller number detected by ~ 14-n, the initial value of the listening volume at the extension telephone of the called party is controlled.

On the other hand, the extension telephone 2-1 is connected to the transmission transformer 2
1, a digital transmission unit 22, a codec 23, an electronic volume 24, a handset 25, a speaker 26, a telephone control unit 27 and a volume key button 28.

The digital transmission section 22 is a transmission transformer 2.
Extension interface unit 13-1 of the main unit 1
It is connected to the. The digital transmission section 22 is connected to the codec 23 and the telephone control section 27, respectively. Then, the transmission transformer 21 transmits / receives voice data between the codec 23 and the main device 1, and transmits / receives control data between the telephone control unit 27 and the main device 1.

The codec 23 has a digital transmission section 22.
The voice data given from the device is decoded to reproduce the voice data, which is given to the handset 25a and the speaker 26 of the handset 25 via the electronic volume 24. Further, the codec 23 PCM-encodes the voice signal output from the transmitter 25b of the handset 25 into voice data, and supplies the voice data to the digital transmission unit 22.

The electronic volume 24 has a telephone control unit 27.
The level of the audio signal given to the handset 25a and the speaker 26 is adjusted so that the received sound volume is set by.

The telephone control unit 27 is mainly composed of, for example, a microcomputer, and controls the respective units of the extension telephone 2-1 as a whole. Volume key button 28
Is for the user of the extension telephone 2-1 to instruct the telephone control unit 27 to change the reception volume.

As the other extension telephone 2, the one having the same configuration as the extension telephone 2-1 is connected. Next, the operation of the key telephone apparatus having the above-described configuration when an incoming call is received will be described focusing on the processing by the volume registering means 17a and the volume control means 17b.

In the analog telephone network to which the key telephone system of this embodiment is connected, the modulated signal is sent to the subscriber by superimposing it on the calling signal. FIG. 5 is a diagram showing a format of a modulation signal superimposed on a ringing signal in the above-mentioned "CLASS". As shown in this figure, the ringing signal is a signal that repeatedly outputs a bell signal of a predetermined frequency every 2 seconds with a bell stop period of 4 seconds interposed therebetween. The modulated signal is transmitted after a period of time. The transmission time of this modulated signal is 575 ms, which is a signal obtained by modulating the identification information in the format as shown in FIG. The identification information includes date and time information (month, day, hour, minute) and caller number.

When a call signal sent from the central office switch arrives, for example, through the office line 3-1, the call signal is received by the incoming line detection circuit of the office line interface unit 12-1 to which the office line 3-1 is connected. It is detected at 120. Then, the fact that the call signal is detected is notified to the main control unit 17 via the control unit 124, the data highway 18, the sub control unit 15 and the bus 19 of the office line interface unit 12-1.

When a modulated signal arrives after the first bell signal via, for example, the office line 3-1, the modulated signal is received by the caller number detection unit 14-1 and given to the main control section 17. To be That is, specifically, the modulated signal is demodulated in the demodulation circuit 141 to reproduce the caller number data, and after the caller number data is converted into parallel data by the serial / parallel converter 142,
An internal data bus 143 of the calling party number detection unit 14-1,
It is given to the main control unit 17 via the control unit 146, the data highway 18, the sub control unit 15 and the bus 19 of the caller number detection unit 14-1.

When the call signal detection is notified from the station line unit 12-1, the main control section 17 first fetches the caller number as shown in FIG. 8 (step ST1). That is, the caller number data notified from the caller number detecting unit 14-1 is taken in as described above.

Subsequently, the main control unit 17 sets the content of the variable I to 1
Increase (I is cleared to 0 in the initial state)
(Step ST2), and then step ST2
From the volume information table 16a, the telephone number indicated by the caller number data acquired in 1 is the extension telephone of #I (in this embodiment, the extension telephones 2-1 to 2-m are assigned the management numbers of # 1 to #m). Search for (attached) (step ST
3). Then, the main control unit 17 determines whether or not the corresponding information has been detected (step ST4), and if it can be detected, the information is used as candidate volume information for the extension telephone of #I as a candidate information storage area of the memory 16. 16b (step ST5). If not detected, predetermined standard volume information is stored in the candidate information storage area 16b of the memory 16 as candidate volume information for the #I extension telephone (step ST6).

After completing the processing of step ST5 or step ST6, the main control section 17 judges whether or not the variable I is equal to or larger than m, and step S is executed until the variable I reaches m.
The processing from T2 to step ST7 is repeated. As a result, the candidate information is set for each of the extension telephones 2-1 to 2-m.

Then, the variable I reaches m, and the extension telephone 2-1
When the setting of the candidate information for each of ~ 2-m is completed, the main control unit 7 responds to the incoming call from any of the extension telephones 2-1 to 2-m to execute the line connection, or the incoming call is interrupted. Waits to do (step ST8 and step S
T9).

When a response is made at any of the extension telephones 2-1 to 2-m and the line connection is executed, the main control unit 17 sets the candidate volume set for the extension telephone to which the line connection is made. The information is taken out from the candidate volume storage area 16b and transmitted to the extension telephone set via the corresponding extension interface unit 13 (step ST10).
That is, for example, if the extension telephone 2-1 is connected to the line, the volume information set for the extension telephone 2-1 is transferred to the extension telephone 2-1 via the extension interface unit 13-1.
Send to.

In the extension telephone 2-1, when the volume information is transmitted from the main unit 1, the digital transmission section 22 receives the volume information and gives it to the telephone control section 27. Then, the telephone control unit 27 controls the electronic volume 24 to adjust the reception volume to the volume indicated by the volume information. After that, the telephone control unit 27 will turn the volume key button 28
If the change of the listening volume is designated by, the electronic volume 2 should be adjusted to adjust the listening volume to the designated volume.
Re-control 4.

After carrying out the process of step ST10, the main control unit 17 waits for the line disconnection of the extension telephone (here, the extension telephone 2-1) which is the transmission destination of the volume information (step ST11). . Then, when the line is disconnected, the volume information indicating the earpiece volume set last in the extension telephone is received from the telephone control unit 27, and this is registered in the volume information table 16a in association with the caller number (step ST12), and the process ends. In the standby state at steps ST8 and ST9, if the incoming call is interrupted before any of the extension telephones 2-1 to 2-m answers, the main control unit 17 ends the process.

Thus, according to this embodiment, the reception volume set during the call is automatically registered in the volume information table 16a at the end of the call. When a call is being made with the same party in the past, and an incoming call is received from the party whose reception volume set at that time is registered in the volume information table 16a, the initial value of the reception volume is the volume information. It is automatically adjusted to the one registered in the table 16a.
Therefore, each user of the extension telephones 2-1 to 2-m
It is not necessary to set the listening volume for each call that occurs due to an incoming call from the other party.

Further, according to the present embodiment, since the listening volume set during the call is automatically registered in the volume information table 16a at the end of the call, the user is required to register the optimal listening volume. No need to do.

According to the present embodiment, the extension telephones 2-1 ...
Since volume information is individually registered for each 2-m, extension telephones 2-1 ~
It is possible to set different listening volumes for each of 2-m, and it is possible to set a more optimal listening volume corresponding to the individual difference in the sense of each user of the extension telephones 2-1 to 2-m.

The present invention is not limited to the above embodiment, but the following modifications can be made. (1) In the above embodiment, the initial value of the listening volume is adjusted based on the caller number when an incoming call arrives.
For example, when making a call, the initial value of the listening volume may be adjusted based on the telephone number specified as the destination,
Alternatively, the initial value of the reception volume may be adjusted both at the time of incoming call and at the time of outgoing call.

(2) In the above embodiments, the present invention is applied to the key telephone device, but the present invention is also applicable to other communication terminal devices such as standard telephones and private branch exchanges. (3) In the above embodiment, the volume information is automatically registered at the end of the call, but the volume information may be automatically registered in response to the designation of the change in the reception volume.
Further, the reception volume when the registration instruction is issued may be registered as the volume information, or any volume information designated by the user's operation in the registration mode may be registered.

(4) In the above embodiment, the earpiece volume set at the end of the call is registered as volume information, but the optimum earpiece volume is obtained by the average or majority decision of the earpiece volume set in the past multiple calls. Alternatively, the volume may be determined and registered as volume information.

(5) In the above embodiment, the volume information can be registered individually for each extension telephone, but it may be common to all extension telephones. (6) In the above embodiment, the connection is made to a network that provides a service called "CLASS", but the present invention can also be applied to other networks below. However, when the receiving volume is set based on the caller number, it is essential to apply it to a network having a function of notifying the subscriber side of the caller number, such as an ISDN network. (7) In addition, various modifications can be made without departing from the gist of the present invention.

[0041]

According to the present invention, a volume storage means such as a volume information table for storing predetermined volume information indicating a reception volume in association with a number corresponding to another communication terminal device, and a volume control means, for example. If the volume information is stored in the volume storage means in association with the number corresponding to the other party at the start of the call, the reception volume control means such as Since the earpiece volume varying means including, for example, the electronic volume and the telephone control section is controlled so that the initial value of the earpiece volume becomes the earpiece volume indicated by the volume information stored in the volume storage means, The initial value can be set more appropriately, and thus the communication terminal device and the key telephone device can reduce the frequency of adjusting the reception volume.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a main configuration of a key telephone device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a specific configuration of a station line interface unit 12 in FIG.

3 is a diagram showing a specific configuration of an extension interface unit 13 in FIG.

FIG. 4 is a diagram showing a specific configuration of caller number detection unit 14 in FIG.

FIG. 5 is a diagram schematically showing a memory map of a volume information table 16a.

FIG. 6 is a diagram schematically showing a memory map of a candidate volume storage area 16b.

FIG. 7 is a diagram showing a calling signal in “CLASS” and a format of data superimposed on the ringing signal.

FIG. 8 is a flowchart showing a processing procedure when an incoming call is received by the main control unit 17 in FIG.

[Explanation of symbols]

 1 ... Main device 2 (2-1 to 2-m) ... extension telephone 3 (3-1 to 3-n) ... station line 10 ... time switch 11 ... timing generation circuit 12 (12-1 to 12-n) ... Station line interface unit 13 (13-1 to 13-m) ... Extension interface unit 14 (14-1 to 14-n) ... Caller number detection unit 15 ... Sub control unit 16 ... Memory 16a ... Volume information table 16b ... Candidate Volume storage area 17 ... Main control section 17a ... Volume registration means 17b ... Volume control means 24 ... Electronic volume 27 ... Telephone control section

Claims (4)

[Claims] 1. In a communication terminal device capable of arbitrarily changing the listening volume by the listening volume varying means, predetermined volume information indicating the listening volume is stored in association with a number corresponding to another communication terminal device. If the volume information is stored in the volume storage means and the volume corresponding to the number corresponding to the other party at the start of the call, the initial value of the reception volume in the call is stored in the volume storage means. A key telephone device, comprising: a reception volume control means for controlling the reception volume varying means so that the reception volume is represented by volume information. 2. At the time of a call or at the end of the call, there is provided registration means for registering volume information indicating a received volume set in the call in the volume storage means in association with the number of the other party of the call. The communication terminal device according to claim 1. 3. A button telephone device connected to a network in which the receiving volume can be arbitrarily changed by the receiving volume varying means and the called party is notified of the number of the caller, and another communication terminal device. The volume storage means for storing predetermined volume information indicating the reception volume in association with the number corresponding to the number, and the volume information indicating the reception volume set in the call during or after the call Registration means for registering in the volume storage means in association with a number, and the volume storage means in association with a notified source number or a designated destination number at least at the time of incoming or outgoing. If volume information is stored in,
And an earpiece volume control means for controlling the earpiece volume changing means so that the initial value of the earpiece volume in a call started by the incoming or outgoing call becomes the earpiece volume indicated by the volume information stored in the volume storage means. Characteristic button telephone device. 4. The volume information in the volume storage means is further associated with each of the plurality of extension terminals, and the reception volume control means stores the volume information corresponding to the extension terminal which has answered the incoming call or the extension terminal which is the caller. 4. The key telephone device according to claim 3, wherein the reception tone volume varying means is controlled based on a number associated with a source number or a designated destination number notified to the user.