JPH038636B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a communication system in which a call operation for a communication line is completed by a communication line selection operation and a communication line capture operation, in which the communication line selection operation is performed prior to the communication line capture operation when making a call. This invention relates to outgoing call display processing and outgoing communication line processing methods when

In the above-mentioned communication system, for example, a button telephone device, a line selection operation (pressing a button corresponding to a vacant station line) on the telephone (terminal) precedes a line capture operation (picking up the handset and activating a switch). Processing in the control unit based on each operation in each case is generally performed independently of each other. In other words, if the line selection process and the capture process of the selected line are performed simultaneously by the line selection operation, the line will be captured while the handset is placed on the telephone, and the handset will not be removed from the telephone. The noise that is picked up is converted into electrical noise by the transmitter and sent out to the captured line, which is mistakenly recognized as a dialing signal, hooking signal, etc. on the receiving side (telephone office exchange), resulting in incorrect connection. This is because it becomes a cause.

In such a button telephone device, when a line selection operation is performed on a certain telephone and then a line capture operation is performed, conventionally, from the line selection operation to the line capture operation, the display corresponding to the outgoing line of each telephone is displayed. No display is made, and no processing is performed on the outgoing line during this time, especially no processing is performed on the telephone that is not being operated.

Therefore, if one phone starts calling a line and another phone starts calling, duplication of operations will occur, and the phone that starts the operation first will not necessarily capture the calling line. Furthermore, if a line selection operation is performed and left unattended for a while, there is a possibility that the selected line may be lost.

The present invention has been made to solve the above-mentioned problems. Therefore, in the present invention, when a call is made, if a line selection operation precedes a communication line, the corresponding The status of the selected line is displayed on the operating terminal and/or non-operating terminal by displaying the status on the display section corresponding to the selected line of the operated terminal and/or on the display section corresponding to the selected line of other terminals. We adopted a processing method that clearly indicates the Further, in the second aspect of the invention, in consideration of the case where duplicate operations are performed by mistake, a processing method is adopted in which the calling operation to the selected line from the non-operating terminal is invalidated.

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 exchange 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.

Assume that a line selection operation to select outside line CO ₁ is first performed on the telephone, for example, TEL ₁ . telephone
When you perform a line selection operation to select external line CO ₁ on the operation unit KB of TEL ₁ , that is, press the external line button (EK ₁ button) corresponding to the external line CO ₁ , the data processing unit PP selects the corresponding EK ₁ button in a series of processing sequences. Detects the operation of the main unit ME, and sends line selection data and line number data “#1” (line number data indicating outside line CO ₁ ) to the main device ME via the interface unit IF.
In the main device ME, the data processing unit MP reads the line selection data and line number data “#1” through the extension circuit LC ₁ , and detects that the line selection operation for the external line CO ₁ has been performed on the telephone TEL ₁ . Then, line temporary acquisition data and line number data "#1" are sent to the telephone TEL ₁ via the extension circuit LC ₁ . Note that provisional acquisition here refers to a state in which even though a line has been selected, the selected line has not yet been acquired due to the above-mentioned reasons. Also, the above phone
Telephones other than TEL ₁ TEL ₂ to _{TEL o} have extension circuits
Busy display data and line number data "#1" are sent via LC ₂ to LC _o .

On the telephone TEL ₁ where the line selection operation was performed,
The above line temporary acquisition data and line number data “#1” are sent to the data processing unit via the interface unit IF.
When read in PP, the selected external line CO ₁ on the display LA
A corresponding visual display element, such as a light emitting diode, is made to blink at a specific intersection to provide a temporary capture display. As a result, the phone is selected for TEL ₁ ,
Lines that have not yet been captured will be clearly identified.

Also, if the phone does not have the line selection operation
For TEL ₂ to TEL _o , when the busy display data and line number data "#1" are read by the respective data processing units PP via the respective interface units IF, the selected A visible display element, such as a light emitting diode, corresponding to the outside line CO ₁ is set to a busy display (usually a lit display). This will clearly indicate to the telephones TEL ₂ to TEL _o that at least the line selection has been made on one of the telephones (in this case, TEL ₁ ), so the telephones TEL ₂ to TEL _o will not be duplicated. This prevents erroneous operations such as selecting the same line. In addition, the telephone
The above displays for TEL ₂ to TEL _o are in the same display format as when the line is busy, but the line that is temporarily captured by one of the telephones is prohibited from being captured by another telephone. Since this is the same as the case, there is no problem even if the display is in the busy display format.

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 acquired data and line number data “#1” are sent to the telephone TEL ₁ , and the outside line CO _{1 is}
Set the telephones TEL ₂ to TEL _o in a busy state.

In addition, in the main device ME, the data processing unit MP processes the phone based on the various data sent so far.
Connects the call channel of TEL ₁ and the call channel of EX 1, and also connects the call channel of TEL ₁ and the outside line circuit
EX ₁ external line CO ₁ side call loop closed control and external line
Capture CO ₁ . As a result, the dial tone sent from the outside line CO ₁ is sent to the telephone TEL ₁ .

In addition, if the line captured by telephone TEL ₁ is an extension line, the data processing unit MP of the main device ME will connect the dial tone channel of the sound source circuit unit TN and the telephone
It is connected to the TEL ₁ communication channel, and the dial tone is sent from the sound source circuit TN. In this manner, the present invention can be implemented even when the selected line is other than an outside line.

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
The light emitting diode (visible display element) corresponding to LA's external line CO ₁ is converted into a capture display. This capture display is performed, for example, by blinking a light emitting diode at a different interface from the temporary capture display (however, both displays may have the same form). In addition, at this time, the telephone TEL ₁ is connected to the above external line CO _1.
You can hear the dial tone sent from the receiver through the handset.

As described above, acquisition of the outside line CO ₁ by the telephone TEL ₁ is completed, and when a dial operation is performed on the telephone TEL ₁ , a dial signal is sent to the outside line CO ₁ via the outside line circuit section EX ₁ under known control.

The first embodiment described above is based on a non-operated terminal (telephone).
TEL ₂ ~ TEL _o ), the operating terminal (telephone)
This is an example in which only a busy display is displayed when a line is selected using TEL ₁ ), but in this first example, the selected line (external line CO ₁ ) is displayed for non-operating terminals.
itself has not been 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 operating terminal selects the line due to the above-mentioned erroneous operation. A situation may arise in which a terminal that is connected to a computer is captured.

The second embodiment is designed to avoid such a situation, and the second embodiment will be described below with reference to FIG. 3.

In the second embodiment, the operation related to the terminal (telephone TEL ₁ ) on which the line selection operation was first performed is the same as in the first embodiment, as is clear from comparing FIGS. 2 and 3. , the following is a non-operating terminal (telephone)
Only the operations related to TEL ₂ to TEL _o will be explained.

As in the first embodiment, first the telephone TEL ₁
When a line selection operation is performed and the line selection data and line number data "#1" are sent from the telephone TEL ₁ to the main device ME, the main device ME uses the data processing unit MP to select the line through the extension circuit LC ₁ . Read the line selection data and line number data “#1” and call the telephones TEL ₂ to TEL _o other than the above telephone TEL ₁ .
, line busy data and line number data "#1" are sent in place of the busy display data in the first embodiment, and at this point, the outside line CO ₁
Set the telephones TEL ₂ to TEL _o in a busy state.

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.
The light emitting diode (visible display element) for LA's outside line CO ₁ displays a busy display (usually lit).

Here, before the line capture operation (hunt-off) is performed on the telephone TEL ₁ , one of the telephones TEL ₂ to TEL _o , for example, the telephone TEL _o is connected to the above telephone TEL _1.
When a line selection operation is performed on the selected external line CO ₁ , the data processing unit PP of the relevant telephone TEL _o
reads the line selection operation information from the operating unit KB and transmits the line selection data and line number data "#1" from the telephone TEL _o to the main device ME in the same way as in the line selection operation of the telephone TEL ₁ . The data processing unit MP of the main device ME 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 the main device ME transmits the line capture data via the extension circuit section LC _o . Then, the line acquisition data is read into the data processing unit MP. In the data processing unit MP, based on the previously read line selection data, line number data "#1" and the above line capture data, the line that the telephone TEL _o is trying to capture is determined by the above operation.
It detects that outside line CO ₁ is in a busy state for TEL _o , connects the busy tone channel of the sound source circuit section TN and the speech channel of the telephone TEL _o via the extension circuit section LC _o , and Sends a busy tone to the handset of 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, a call operation to the same line on a telephone other than the telephone on which the line selection operation was performed first becomes invalid, and in the embodiment, this is displayed in the same display format 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 selected 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 capture operation on the first operating terminal, for example, telephone TEL ₁ , becomes long (that is, after the line selection operation, the (if left unattended, etc.), 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, upon detection of timing out, control is performed to restore the original state, that is, the selected line CO ₁ to the idle state.

In addition, in the above embodiment, the operation terminal (telephone
Temporary acquisition display control for TEL ₁ ) and busy display control for non-operated terminals (telephones TEL ₂ to TEL _o ) may be performed separately and independently.

As described above in detail, according to the present invention, it is possible to make a terminal other than the terminal that first performed the line selection operation on the communication line recognize that there is a terminal that has performed the calling operation first, 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 first 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 systems where there are a plurality of terminals, such as a line concentration system for various data transmission devices, and by performing a line selection operation and a line capture operation at any terminal. The present invention can be implemented in any system as long as it is configured to send a call to a selected communication line, and the gist of the present invention does not change depending on the system to be implemented.

[Brief explanation of drawings]

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)

[Scope of Claims] 1. In a communication system in which a plurality of terminals exist and the terminal performs a line selection operation and a line capture operation when making a call to a communication line, any one of the terminals performs a line selection operation and a line capture operation. When a line selection operation has been performed and the above-mentioned line capture operation has not been performed yet, the display corresponding to the outgoing line of either or both of the terminal on which the above-mentioned line selection operation was performed and other terminals will be displayed. A communication line transmission processing method that displays the above status. 2. The communication line origination processing method according to claim 1, wherein the display format on the terminal where the line selection operation has been performed is different from the display format on other terminals. 3 Claim No. 1 in which the display format for a terminal on which a line selection operation is not performed is a busy display format
or the communication line transmission processing method described in paragraph 2. 4. In a communication system in which there are multiple terminals, and when making a call to a communication line, the above-mentioned terminal performs the line selection operation and line capture operation, if any of the terminals performs the above-mentioned line selection operation. , and a communication line origination processing method in which, while the above line capture operation has not yet been performed, the origination operation on the communication line selected by the terminal on which the above line selection operation has been performed is made invalid at any terminal other than the above. . 5. A transmission processing method for a communication line according to claim 4, wherein the invalidity of the transmission operation is visually and/or audibly displayed on a terminal other than the terminal on which the line selection operation was performed. 6. The transmission processing method for a communication line according to claim 5, wherein the visible display has the same form as the busy display. 7. The communication line transmission processing method according to claim 5, wherein the audible display is performed by transmitting a busy tone.