JPH038637B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a communication system in which a response operation for an incoming communication line is completed by a communication line selection operation and a communication line capture operation. The present invention relates to an incoming call display process and an incoming communication line processing method when an incoming call is performed.

In the above communication system, for example, a button telephone device, when an incoming call occurs on a central office line, the telephone (terminal)
Processing in the control unit based on each operation when the line selection operation (pressing the button corresponding to the terminating station line) for the terminating station line precedes the line capture operation (picking up the handset and activating the switch) are generally performed independently of each other. In other words, if the line selection process and the acquisition process of the selected circuit are performed simultaneously by the line selection operation, the terminating station line will be acquired while the handset is placed on the telephone, and the handset will be Acoustic coupling occurs between the handset and the handset (the handset is designed to be used with the handset picked up, so if it is connected to the line while it is placed on the phone, it will cause damage to the handset). (Acoustic coupling that propagates through the handset mounting surface may occur), howling occurs and is transmitted to the caller, and the noise generated when the handset is picked up is electrically transmitted by the handset. This is because the noise is converted into noise and transmitted to the captured terminating station line, causing discomfort to the caller.

Conventionally, if the response operation for the terminating station line is performed in the above order, no line capture processing is performed during the line selection operation for the above reason, and other operations are performed between the line selection operation and the line capture operation. There is no change in the incoming call display on the telephone, and no processing is performed for the other telephone on the receiving station line.

Therefore, even if you start answering on one phone, if you start answering on another phone, duplication of operations will occur, and the receiving station will not always be the same on the phone that started the answering operation first. There is a problem that it is not always possible to respond to lines.

The present invention has been made to solve the above-mentioned conventional problems. Therefore, in the present invention, when a line selection operation is performed on an incoming line prior to a line capture operation, other terminals When a line selection operation is performed on the above terminal, the incoming call display disappears by switching to a busy display, for example. The display for the receiving station line until the acquisition operation changes to, for example, a busy display.The display of the terminal that performed the line selection operation is as follows.
There is no operational problem even if the incoming call display is left as is. ). Furthermore, in the second aspect of the invention, in consideration of the case where the call is answered by mistake at another terminal despite the disappearance of the incoming call display, a processing method is adopted in which the incoming line is placed in a busy state at the other terminal.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the invention, and FIGS. 2 and 3 are sequence diagrams showing processing control in the first and second embodiments of the invention, respectively. still,
In FIGS. 1 to 3, only the parts related to the transmission and reception of control data are shown, and the communication circuit system not directly related to the present invention is omitted.

Further, the embodiment described below is an example in which the present invention is implemented in a so-called button telephone device.

In Figure 1, TEL ₁ to TEL _o are key telephones (generally equivalent to terminals, hereinafter referred to as telephones), and ME is button telephone main equipment (generally equivalent to processing equipment, hereinafter referred to as main equipment). ), CO ₁
~CO _n is an outside line (generally equivalent to a communication line)
In the telephone TEL ₁ to TEL _o , KB is the operation section, LA is the display section, PP is the data processing section, IF is the interface section, and in the main device ME, LC ₁ to
LC _o is the extension circuit section (interface with telephone TEL ₁ ~ TEL _o ), MP is the data processing section, EX ₁ ~
EX _n is an external line circuit section (interface with external lines CO ₁ to _{CO n} ), TN is a sound source circuit section, and B is a common bus.

The button telephone device according to the embodiment adopts a storage program control method using a microprocessor (CPU), and in the telephones TEL ₁ to TEL _o and the main device ME, the data processing units PP and MP are
The control unit is mainly based on the CPU. Therefore, the first and second embodiments described below are achieved by program control based on the information (data) exchanged between the data processing units PP and MP, and the control is shown in FIGS. 2 and 3. This is explained by the sequence diagram shown below.

A first embodiment will be described with reference to FIG.

When there is an incoming call on an outside line, e.g. CO ₁ , the main device ME
Then, the incoming call is received by the outside line circuit section _EX1 . When the data processing unit MP detects an incoming call on the external line circuit unit EX ₁ in a series of processing sequences, the internal line circuit unit
It sends the incoming call activation data and the line number data "#1" of the above external line CO ₁ to all telephones TEL ₁ to TEL _o via LC ₁ to _{LC o} , and activates the sound source circuit section TN to set the ring tone channel. All extension circuit section LC ₁
~ All telephones TEL ₁ ~ TEL _o via LC _o Connect all the corresponding telephones TEL ₁ ~ TEL _o
Send a ringtone to.

In the telephones TEL ₁ to TEL _o , when the data processing unit PP reads the incoming call activation data and line number data “#1” via the interface unit IF,
Based on those data, the audible display circuit of the display section LA,
For example, a speaker amplifier is activated to emit the above-mentioned ringtone, and a visible display element compatible with outside line CO ₁ ,
For example, a light emitting diode is made to blink according to a set incoming call interface. In this way, an incoming call to the outside line CO ₁ is audibly and visually displayed on all telephones TEL ₁ to TEL _o .

In response to the above incoming call, for example, in order to answer the incoming call to the above external line CO ₁ using the telephone TEL ₁ , first press the line selection operation, that is, press the external line button (EX ₁ button) corresponding to the external line CO ₁ on the operating section KB. , the data processing unit PP reads the line selection operation information and sends line selection data and line number data “#1” from the telephone TEL ₁ to the main device ME via the interface unit IF. The main device ME receives (reads) the line selection data and line number data "#1" via the extension circuit LC ₁ corresponding to the telephone TEL ₁ , and the data processing unit MP selects the external line on the telephone TEL ₁ . Detects that CO ₁ (external line corresponding to line number data #1) has been selected, and all telephones other than the optical telephone TEL ₁
Incoming call stop data is sent to TEL ₂ to _{TEL o} via the extension circuits LC ₂ to _{LC o} to stop incoming call display, and the tone channels of the telephones TEL ₂ to _{TEL o} and the ring tone channel of the sound source circuit TN are The connection between the telephones TEL 2 and TEL o is terminated and the sending of ring tones to the telephones TEL ₂ to TEL _o is stopped. Telephone TEL ₂ ~ _{TEL o}
Then, when the data processing unit PP reads the incoming call stop data via the respective interface units IF, it stops the activation of the speaker amplifier (audible display circuit) of each display unit LA, and depending on the embodiment, For example, the incoming call display on the light emitting diode (visible display element) compatible with outside line CO ₁ is changed to the busy display mode (usually lit) (in this case, the line number data “#1” as well as the incoming call stop data are also displayed on the main device ME). from the telephone TEL ₂ to TEL _o ).

As a result of the above, the incoming call display for telephones TEL ₁ to TEL _o is limited to the telephone TEL ₁ on which the line selection operation was performed, and for telephones TEL ₂ to TEL _o other than the relevant telephone TEL ₁ .
This prevents the incoming external line CO ₁ from being answered twice.

Next, when the telephone TEL ₁ performs a line capture operation, that is, the hook-off (raises the handset), the data processing unit PP of the telephone TEL ₁ detects the hook-off and transfers the line capture data to the interface unit.
Send to main device ME via IF. In the main device ME, the data processing unit MP reads the line capture data via the extension circuit LC ₁ , and combines the read line capture data with the line number data “#1” received during the previous line selection operation. ”, it is determined that the outside line captured by telephone TEL ₁ is CO ₁ , and the outside line CO ₁ is placed in a busy state for telephones TEL ₂ to TEL _o , and the telephone TEL ₁ receives the captured data and The line number data “#1” is sent to the telephones TEL ₂ to TEL _{2 which} are not responding to incoming calls, and the line busy data and line number data “#1” are sent to the extension circuits LC ₁ and LC ₂ to LC _o , respectively. Send via. Further, the connection between the tone channel of the telephone TEL ₁ and the ringing tone channel of the sound source circuit section TN is canceled, and the display of the ringing tone for the telephone TEL ₁ is stopped.

In the telephone TEL ₁ , when the above-mentioned captured data and line number data “#1” are read by the data processing unit PP via the interface unit IF, the display unit
LA's speaker amplifier audible display circuit) is stopped, and the light emitting diode (visible display element) corresponding to the outside line CO ₁ is activated to display the self-busy display (the own telephone is currently talking to the line (CO ₁ in this case)). (For example, by flashing a different interface from the incoming call display.)

In addition, when the above-mentioned line busy data and line number data "#1" are read by the respective data processing units PP via the respective interface units IF in the telephones TEL 2 to _{TEL o} , the telephones TEL ₂ to TEL o
Convert the light emitting diode corresponding to the outside line CO ₁ of each display section LA of TEL _o to a busy display (however,
In the embodiment in which the display is changed to the busy display upon receiving the incoming call stop data, there is no need to change the display of the light emitting diode, so the line busy data and line number data "#1" are sent from the main device ME to the telephone TEL ₂ ~
There is no need to send to TEL _o . ) The above first embodiment is based on a non-operated terminal (telephone).
TEL ₂ ~ TEL _o )
This is an example in which only the incoming call display is changed when selecting a line using TEL ₁ ), but in this first example, the incoming call display (outside line
CO ₁ ) itself is not converted to a busy state, so if one of the non-operating terminals performs both operations by mistake before the operating terminal performs the line capture operation, the incoming line will be transferred to the non-operating terminal. A situation may arise in which the person is captured by someone else.

The second step was to avoid the above situation.
The second embodiment will be described below with reference to FIG.

In the second embodiment, an incoming call is received from an outside line, and the operations until the incoming outside line is displayed on all telephones and the operations related to the telephone on which the line selection operation is first performed after the incoming call is displayed are shown in Figures 2 and 3. As is clear from comparing the figures, this embodiment is the same as the first embodiment. Therefore, the following describes the line selection operation at the operating terminal (eg, telephone TEL ₁ ) and the non-operating terminal (eg, telephone TEL ₂₎ .
〜TEL _o ) will be explained.

In response to an incoming call to the outside line CO ₁ , a line selection operation is first performed on the telephone TEL ₁ as in the first embodiment, and the telephone TEL ₁ transmits line selection data and line number data "#1" to the main device ME. is sent, in the main device ME, the data processing unit MP reads the line selection data and line number data “#1” via the extension circuit unit LC ₁ , and calls the telephones TEL ₂ to TEL _o other than the above-mentioned telephone TEL ₁ . In place of the incoming call stop data in the first embodiment, line busy data and line number data "#1" are sent to the phone, and at this point, the outside line CO ₁ is sent to the telephones TEL ₂ to _{TEL o.} Set to busy state. In addition, at this time, the telephone
The ring tone for TEL ₂ to TEL _o is sent by the first
It is stopped under the same control as in the embodiment.

In the telephones TEL ₂ to TEL _o , when the data processing unit PP reads the line busy data and line number data "#1" through the respective interface parts IF, the display part of the telephones TEL ₂ to _{TEL o} is displayed.
Busy display mode of light emitting diode (visible display element) compatible with outside line CO ₁ in LA (usually lit)
Convert to

Here, if a line selection operation is performed for the incoming outside line CO 1 on any of the telephones _{TEL 2 to} TEL _o , for example, on the telephone TEL _o , before a line seizing operation (hooking off) is performed on the telephone TEL ₁ , the telephone
The data processing unit PP of TEL _o reads the line selection operation information from the operation unit KB and
Similarly to the line selection operation for TEL ₁ , line selection data and line number data "#1" are sent from the telephone TEL _o to the main device ME, and the main device ME
The data processing unit MP reads the line selection data and line number data “#1” via the extension circuit unit LC _o .

Subsequently, when a line capture operation (hook-off) is performed on the telephone TEL _o , line capture data is sent from the telephone TEL _o to the main device ME via its interface section IF, and in the main device ME, the line capture data is sent to the extension circuit section LC _o.
The line capture data is sent to the data processing unit MP via
is loaded into. In the data processing unit MP, the line selection data and line number data "#1" read earlier
And from the above line capture data, it is detected that the line that the telephone TEL _o is trying to capture is the outside line CO ₁ which is in a busy state for the telephone TEL _o in the above operation, and the busy tone of the sound source circuit section TN is detected. The channel is connected to the communication channel of the telephone TEL _o via the extension circuit section LC _o , and a busy tone is sent to the handset of the telephone TEL _o . As a result, the operator of the telephone TEL _o recognizes that the operator's operation is an error. In addition, when the line selection operation is performed on the telephone TEL _o (non-operated terminal), the busy tone is transmitted from the tone channel of the corresponding telephone TEL _o and the sound source circuit TN.
Connect the busy tone channel of the phone
If a busy tone is emitted from the speaker (audible display circuit) of TEL _o , the telephone TEL _o can recognize that the outside line CO ₁ is busy before the line capture operation is performed.

In this way, the response operation for an incoming call from an outside line on a telephone whose incoming call display has been stopped becomes invalid, and in the embodiment, this is shown in the same display mode as the busy display (in the case of an audible display, a busy tone is sent out). , the visual display is, for example, a lighting display).

As described above, in the second embodiment, it is possible to completely avoid an erroneous operation in which the incoming call line is captured by a telephone other than the telephone that initially performed the line selection operation.

In the first and second embodiments described above, the time from the line selection operation to the line acquisition operation on the first operation terminal, for example, telephone TEL ₁ , becomes long (that is, after the line selection operation, the (e.g. if the phone is left unattended), during which time any other phone
Taking into consideration the inconvenience of not being able to respond from TEL ₂ to TEL _o , when a line selection operation is performed, timing control is performed on the telephone TEL ₁ or the main device ME where the operation was performed, and the line selection operation is performed. If no line capture operation is performed on the telephone TEL ₁ during the timing period, control is performed so that the timing out is detected and the original state is returned to, that is, the state in which an incoming call is displayed on all the telephones TEL ₁ to TEL _o .

As described above in detail, according to the present invention, it is possible to make a terminal other than the terminal that initially performed the line selection operation on the communication line recognize that there is a terminal that has previously performed the response operation, In addition, the present invention can provide a new service that has not existed before, such as avoiding erroneous acquisition of a line by a terminal other than the terminal that initially performed the line selection operation, and its effects are extremely large.

In addition to the button telephone device described in the embodiments, the present invention is also applicable to a plurality of terminals, such as a line concentration system for various data transmission devices, in which an incoming call to a communication line is simultaneously displayed on the plurality of terminals. It can be implemented in any system that responds to an incoming communication line by performing a line selection operation and a line capture operation on a terminal.
Differences in the implementation system do not change the gist of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIGS. 2 and 3 are sequence diagrams showing processing control of the embodiment of the present invention. (Main symbols), TEL ₁ ~ TEL _o ... terminal (telephone), ME ... processing unit (main device), CO ₁ - _{CO n} ...
...Communication line (external line), KB...Operation unit, LA...Display unit, PP, MP...Data processing unit.

Claims (1)

[Claims] 1. A plurality of terminals exist, an incoming call to a communication line is displayed on the plurality of terminals, and a response to the incoming communication line is made by performing a line selection operation and a line capture operation on any terminal. In such a communication system, when the above-mentioned line selection operation is performed on an incoming communication line before the above-mentioned line capture operation, the above-mentioned incoming call on a terminal other than the terminal on which the said operation was performed at the time of the above-mentioned line selection operation is An incoming call processing method for a communication line that stops displaying incoming calls on the communication line. 2. The incoming call processing method for a communication line according to claim 1, wherein the incoming call display to be stopped is a visible display and/or an audible display. 3. In a communication system in which there are multiple terminals, incoming calls to a communication line are displayed on the plurality of terminals, and the incoming communication line is answered by performing a line selection operation and a line capture operation on any terminal. In this case, when the above-mentioned line selection operation is performed on the incoming communication line before the above-mentioned line capture operation, the incoming call display for the above-mentioned incoming communication line on terminals other than the terminal on which the operation was performed at the time of the above-mentioned line selection operation is stopped. In addition, an incoming call processing method for communication lines that disables response operations on terminals that have stopped displaying incoming calls. 4. The incoming call processing method for a communication line according to claim 3, wherein the incoming call display to be stopped is a visible display and/or an audible display. 5. The incoming call processing method for a communication line according to claim 3, wherein the invalidity of the response operation is displayed visually and/or audibly. 6. An incoming call processing method for a communication line according to claim 5, wherein the audible display is performed by transmitting a busy tone. 7. An incoming call processing method for a communication line according to claim 5, wherein the visible display is in the same manner as the busy display.