KR100255376B1 - Method for expanding a conference function in pabx - Google Patents

Abstract

PURPOSE: A method for performing various conferencing functions in a private exchange system is to provide an effective conferencing communication by excluding conference attendants who a conferencing supervisor wants to avoid. CONSTITUTION: In a method for performing a conferencing function in a private exchange system, a central office line direct selection function and an extension line direct selection function are performed in response to a central office line direct selection key and an extension line direct selection key, respectively. A conferencing function is performed in response to a conferencing key. When terminals registered in the private exchange system is in a conferencing communication state, if the central office line direct selection key and the extension selection direct selection key are inputted(212), a terminal to which two selection keys are inputted checks whether or not the terminal supervises a conference(214). If it is checked that the terminal supervises the conference, an additional communication line is established therebetween(216). If only one terminal is in the conferencing communication state(218), the terminal maintains a common idle state(220).

Description

How to Perform Various Conference Functions in Private Exchange

The present invention relates to a method of performing a conference function in a private exchange, and in particular, during a conference function performed in a private exchange, a secret call is formed between specific terminals participating in a conference, or a specific terminal participating in a conference is selected in a conference state. A method of performing diversified conference functions to be excluded or added.

Nowadays, most companies and offices have private exchanges installed and operated. Examples of such private exchanges include 'Private Branch Exchanger (PABX)' and 'Keyphone System'. The role of the private exchange is largely a role of connecting a call between a trunk line and an extension subscriber by a telephone line (commonly referred to as a trunk line) of a premises switching facility and an affiliated transfer handling section.

On the other hand, the above-mentioned private exchange is usually implemented by the conference (Conference) is implemented, which is a meeting group is configured by the capacity set in advance in the private exchange, a predetermined number of subscribers in each group participates in the conference using their terminal Refers to the ability to conduct calls with each other. In other words, participants in a meeting group can hear all the voices they send out together, and can deliver their voices to all participants at any time. This conferencing function brings convenience to subscribers when the private exchange subscribers cannot gather in one place and perform a meeting through a key phone terminal.

However, the conventional private exchange conferencing function provides a way for an extension subscriber to perform a secret conversation with a specific number of subscribers, if necessary, during a conference call with a plurality of other extension and trunk subscribers. I couldn't. Therefore, if the extension subscriber has a secret conversation with a specific conference call participant during a conference call with a plurality of other extension and CO subscribers, the only option was to remove the other participant from the conference call and then make the call. And, if you want to resume the meeting again, other participants participated in the conference call through the conference function again.

As such, the conferencing function performed in the conventional private exchange does not support secret conversations between specific conference participants, and in addition, it is not possible to exclude participants who disturb the meeting atmosphere or to additionally join subscribers required for the conference. Did.

Due to the inconvenience as described above, the meeting was rarely performed by using a private exchange, and this caused a problem that the meeting function was recognized as a function that is not necessary despite its usefulness.

As described above, the main purpose of the present invention is to allow the subscribers to utilize the conference function usefully so that the conference function, which has provided only a limited function in the conventional private exchange, is performed.

Accordingly, the present invention provides a diversified conference function in which a private call is performed between specific terminals participating in a conference, or a specific terminal participating in a conference is excluded or added during a conference function in a private exchange. We want to provide a way to do it.

In the present invention, the present invention is a conference function of a private exchange in which a trunk line direct selection function or a station direct selection function is performed by a trunk line direct selection key or a station direct selection key input, and a conference function is performed by a conference key input. In the performing method, when the trunk line direct selection key or the extension direct selection key is input in a conference call state between terminals subscribed to the private exchange, it is determined whether the terminal inputting the key is a conference function host terminal, If it is determined that the terminal, a separate call path is formed between the host terminal and the terminal corresponding to the trunk line direct selection function or the extension direct selection function, the terminal that does not correspond to the trunk line direct selection and extension direct selection function is the conference call Process to continue to participate in the state, and if there is only one terminal that continues to participate in the conference call state, The base station proposes a method of performing a conference function which is processed to be in a joint hold state.

1 is a block diagram of a private exchange in which the present invention is carried out.

2 is a flowchart illustrating a method of performing diversified conference functions according to a first embodiment of the present invention.

3 is a flowchart illustrating a method of performing diversified conference functions according to a second embodiment of the present invention.

4 is a flowchart illustrating a method of performing diversified conference functions according to a third embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

In the following description of the present invention, detailed descriptions of related well-known functions or configurations will be omitted when it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. The terms to be described below are terms defined in consideration of functions in the present invention, and may be changed according to the intention or custom of the user or chip designer, and the definitions should be made based on the contents throughout the present specification.

First, FIG. 1 is a block diagram of a private exchange in which the present invention is performed, and shows that a voice mailbox is further added to a conventional private exchange.

Referring to FIG. 1, the CPU 100 processes a predetermined set of programs to control a call switch and to control various services and operations according to the present invention. The RAM 110 includes a program and a volatile data processing area, and is composed of a plurality of various buffers and used as a working memory of the CPU 100. The ROM 120 stores control programs and initial service data for performing calls and various functions. The switching circuit 130 switches various tone and voice data, connections between stations, and connections of trunk lines under the control of the CPU 100. The general subscriber circuit 140 performs interfacing between a general telephone and a device of a plurality of subscribers. The trunk line circuit 180 is connected to an external trunk line to implement a call between the external trunk line and the exchange. The ring generator 150 outputs a ring signal in the form of a square wave to the general subscriber circuit 140. Key phone subscriber circuit 160 performs the interface between a plurality of key phone telephones and the device. At this time, the key phone includes a predetermined display unit so that the subscriber can know the overall operating state of the system and the input telephone number. The tone generator 170 is controlled by the central processing unit 100, and scissor the trunk line to form a trunk line loop. In addition, an incoming signal received through the trunk line is interfaced. The DTMF receiver 190 analyzes the DTMF signal generated from the subscriber of the general subscriber circuit 140. Meanwhile, the DTMF transmitter 200 outputs the DTMF signal to the switching circuit 130 under the control of the CPU 100. The clock circuit 105 serves as a timer for counting a predetermined time under the control of the CPU 100 or detects a current time.

2 is a flowchart illustrating a method of performing diversified conference functions according to a first embodiment of the present invention.

Referring to FIG. 2, in step 210, a conference function is performed by an extension terminal, so that a group subscribed to the private exchange is in a conference call state. In step 212, it is determined whether a direct line selection (DTS) key or a direct line selection key (DSS) is input from the extension terminal. For reference, a direct line selection (DTS) key is a function key provided to an extension terminal of an extension subscriber subscribed to the private exchange. When the direct line selection key is input, users can make a line transmission without hearing a dial tone. In a conventional private exchange, only one trunk line can be accommodated in the trunk line direct selection key, and a trunk line of a special property is set. The extension direct selection key (DSS) allows the same operation as the trunk line selection key to be performed. The difference is that the extension is set in place of the extension line. Accordingly, in step 212, it is determined whether there is an input of the COS direct selection key or the DSS direct selection key, and if it is determined that there is an input, in step 214, the COS direct selection (DTS) key or It is determined whether the extension terminal to which the extension direct selection key (DSS) is input is the conference host terminal that performed the conference function. If it is determined in step 214 that the terminal is in charge of the conference, in step 216, the trunk line terminal or the direct line selection key using the trunk line direct selection (DTS) key or the direct line direct selection key (DSS) input in step 212; The extension terminal corresponding to the DSS corresponding to the DSS and the terminal in charge of the conference are processed to be in a secret call state. That is, when a plurality of subscribers using the extension terminal are in a conference call, only the subscribers and extension subscribers corresponding to the DTS or the DSS may be in a call. To deal with. Its call is not communicated to other conference participants. That is, a call path with the conference host terminal is not formed as another conference participating terminal. In step 218, it is determined whether there is only one conference participating terminal excluded from the secret call in step 216. That is, during a conference call, it is determined whether one subscriber is left out in forming a secret call between the subscriber of the station and the subscriber by the direct line selection or the direct line selection. If it is determined that there is only one terminal excluded in step 218, the terminal one excluded in step 220 is placed in a shared hold state. This is because the shared hold function implemented in the private exchange is operated so that the reserved terminal user hears a pending sound. However, if it is determined that there is more than one terminal excluded in step 218, the conference call state is continuously maintained between the excluded terminals. In step 222, it is determined whether there is an input of the conference key from the conference host. If it is determined in step 222 that there is a meeting key input from the conference main terminal, the secret call performed in step 216 is suspended in step 224 and is in the same conference call state as step 210. At this time, all conference subscribers can talk to each other.

3 is a flowchart illustrating a method for performing diversified conference functions according to a second embodiment of the present invention, which excludes or adds a subscriber desired by a conference host from a conference call in addition to the secret call performed in FIG. It shows how to perform this additional conference function.

Below. Referring to FIG. 3, a conference call state is performed in step 310. If it is determined in step 312 that the conference key is input, and if it is determined that there is an input of the conference key, it is determined in step 314 whether the terminal in which the conference key is input in step 312 is a conference main terminal. If it is determined in step 314 that the terminal is not the main meeting terminal, in step 315 the terminal inputted with the conference key has the same authority as the conference main terminal, and then step 316 is performed. In step 316, the user enters a state of selecting addition and exclusion of meeting participants. This is an optional state for the meeting host to exclude certain subscribers in the meeting from the conference call or add other specific subscribers not in the meeting. In step 318, it is determined whether there is an input corresponding to the selection for adding the conference participant from the conference main terminal in the state of step 316. If it is determined in step 318 that the additional selection of the meeting participant is input, in step 320 the additional subscriber is selected and called. That is, the extension number or the CO line number of the specific terminal to be added to the conference call is entered by the conference host terminal, and after the input, the extension number and the CO line number are called. In step 322, the terminal, called in step 320, responds to determine whether a call path is formed in the conference state and thus the call state is established. If it is determined in step 322 that the call is in a call state, it is determined whether the conference key is input from the conference main terminal. This is an operation for calling a subscriber to add to the conference call so that the subscriber can participate in the conference call when the subscriber answers. If it is determined in step 324 that the conference key is input, in step 326, a call forming operation is performed to add the trunk line and the extension terminal, which is called in step 320, to the conference call. In operation 328, a conference call state is performed in which the terminal corresponding to the called extension number and the trunk line number is joined to the conference call state. On the other hand, if there is no input corresponding to the selection of the meeting participant in step 318, it is determined in step 319 whether there is an input corresponding to the selection of the exclusion of the meeting participant. If it is determined in step 319 that there is an input corresponding to the exclusion of the conference participant, in step 321, it is determined whether a specific extension number or a CO line number is input, or a direct line selection key (DSS) or a direct extension key (DSS). . If it is determined in step 321 that the direct line selection (DTS) key or the direct line selection key (DSS), or the extension number or the trunk line number is input, in step 323 the direct line selection (DTS) key or Process to exclude the terminal corresponding to the extension direct selection key (DSS) or the terminal corresponding to the input extension number or CO line number from the conference call. That is, forcibly leaving the terminal corresponding to the number input in step 321 to not participate in the conference call, that is, performing the operation of cutting the call path.

In summary, the operation of FIG. 3 is performed when the conference host invites a specific subscriber to join the conference or leaves the conference during the conference call according to the conference function.

Finally, the operation flowchart shown in FIG. 4 shows a method of performing diversified conference functions according to the third embodiment of the present invention, which is an operation to which the operation described with reference to FIG. 2 is applied.

Referring to FIG. 4, in step 412, during a conference call, in step 414, it is determined whether there is an input of the trunk line direct selection (DTS) key or the direct station direct selection key (DSS). It is determined whether the terminal entered in the step is the conference main terminal. In step 416, if it is determined that the conference terminal is located, a call path is formed only between the called terminal corresponding to the DTS key or the direct terminal selection key (DSS) and the conference terminal, and thus, a secret call. Make sure you're in a running state. In step 422, the conference call terminal excluded from the secret call causes the number of one or more of the conference call terminals to be in the co-pending state, thereby generating an error sound to the excluded terminal. In step 418 and step 420, it is determined whether there is a conference key input from the conference terminal in the secret call execution state in step 422 in the state of performing the secret call between the corresponding terminals and in the common hold state of the excluded terminals. If it is determined in step 422 that there is a conference key input, in step 424, the same conference call state as step 412 is performed. In this case, the secret call state performed in step 418 is terminated.

Meanwhile, different operations have been described in the foregoing descriptions of FIGS. 2, 3, and 4, but the embodiments have been described to show that the present invention is to diversify a conference function. The operation becomes executable. However, in the whole observation, the present invention implements a function of allowing a particular subscriber to participate in a conference call or exclude a specific subscriber from participating during a conference function and a function of enabling a secret call with a specific subscriber during a conference call. It can be seen that the feature is made.

As described above, the present invention has the advantage of solving the problem of confidentiality that occurs during a conference call, because the two subscribers who want a secret conversation during a conference call can temporarily exit the conference call and perform a call. When it ends, you can join the conference call again and join the conference, bringing the benefits of not being excluded from the conference.

In addition, the present invention can effectively exclude the participant who should be excluded by the special circumstances during the conference call, or the participant to be excluded by the special circumstances, so that the conference organizer helps to make an efficient conference call. In addition, it is possible to call a necessary subscriber during a conference call to participate in the conference.

Claims (6)

In a method of performing a conference function of a private exchange in which a trunk line direct selection function and a direct station direct selection function are performed by input of a trunk line direct selection key and a station direct selection key input, and a conference function is performed by a conference key input. In a conference call state between terminals subscribed to the private exchange, when the trunk line direct selection key and the extension direct selection key are input from one terminal, the terminal on which the key is input previously inputs the conference key to perform a conference function. If it is determined that the terminal is a main terminal, and if it is determined that the terminal is a main terminal, only a terminal corresponding to the main terminal and the direct line selection function and the direct line selection function are formed so that a separate call path is formed. The terminal participating in the conference call state without corresponding to the direct selection function is continuously maintained in the conference call state. If there is only one terminal in which the conference call state is continuously maintained, the terminal is in a joint hold state. How to perform various conference functions in a private exchange. The method of claim 1, It is determined that the conference key is input from the conference host terminal during the operation of forming the separate call path, continuing to maintain the conference call state, and performing the operation in the joint hold state. And, when the conference call state is performed. In a method of performing a conference function of a private exchange in which a trunk line direct selection function and a direct station direct selection function are performed by input of a trunk line direct selection key and a station direct selection key input, and a conference function is performed by a conference key input. In a conference call state between terminals subscribed to the private exchange, when the conference key is input, it is determined whether the terminal where the conference key is input is a conference host terminal presiding the conference call state, Enter an add / exclude selection mode for selecting a subscriber to be added to the conference call state and a subscriber to be excluded, and after the addition mode is selected from the main terminal, the extension number corresponding to the subscriber to be added in the conference call state or When the CO line number is input, the terminal corresponding to the extension number or the CO line number is called, and if there is a response to the call, a call path is formed in a short term corresponding to the extension number or the CO line number, and a call path is formed. If it is determined that the conference key has been input and is determined to be input, the extension or trunk line terminal having the call path And the process to participate in the conference call, group status, In the add / exclude selection mode, after the exclusion mode is selected from the main terminal, when the trunk line direct selection key and the station direct selection key are input, the trunk line direct operation performed by the trunk line direct selection key and the station direct selection key input is performed. And a terminal corresponding to a selection function and an extension direct selection function are excluded from the conference call. The method of claim 3, If it is determined that the terminal to which the conference key is input is not the conference main terminal of the conference call state, the authority of the conference call state of the terminal to which the conference key is input is the same as that of the conference main terminal of the conference call state. A method of performing various conferencing functions in a private exchange further comprising a process of empowering. The method of claim 3, In the addition / exclusion selection mode, after the exclusion mode is selected from the main terminal, when a specific extension number is input, the step of excluding the terminal corresponding to the extension number from the conference call is made. To perform various conferencing functions on a private exchange. In a method of performing a conference function of a private exchange in which a trunk line direct selection function and a direct station direct selection function are performed by input of a trunk line direct selection key and a station direct selection key input, and a conference function is performed by a conference key input. In a conference call state between terminals subscribed to the private exchange, when the trunk line direct selection key or the station direct selection key is input from one terminal, the terminal on which the trunk line direct selection key or the station direct selection key is inputted receives the conference key. Determining whether the terminal is the main terminal in the conference call state, and if it is determined that the terminal is the main terminal, the terminal corresponding to the trunk line direct selection function or the station direct selection function performed by the trunk line direct selection key or the station direct selection key input; A process of forming a separate call path only between the conference host terminals; Making a terminal corresponding to the trunk line direct selection function and the extension direct selection function and the terminal participating in the call state except for the conference host terminal mutually in a common hold state; When the conference key is input from the main terminal in a state where the separate communication path is formed, the co-pending state is released, the separately formed communication path is released, and the conference call state is restored. How to perform various conferencing functions on a private exchange.

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