KR100270736B1 - Method for processing call through pair designation in private exchange system - Google Patents

Abstract

PURPOSE: A method for processing a station call of a PBX(Private Branch Exchange) by a pair designation is provided to designate two more than stations as a pair. Therefore, it is possible to receive received telephones anytime. CONSTITUTION: A received call is generated(301). A CPU decides whether a station corresponding to the received call is a station designated as a pair(302). If not, the CPU performs a general call process. If the station is a station designated as the pair, the CPU decides whether the station designated as the pair is in a standby state. If not, the CPU performs a call processing operation corresponding to a busy state(306). If the station designated as the pair is in the standby state, the CPU generates a ring of the first station(305). The CPU generates rings of the first station and the second station designated as a pair(307). The CPU decides whether one of the stations is off-hooked(308). If so, the CPU makes station which is not off-hooked as a standby state(309). The CPU performs a communication performance(310).

Description

How to handle extension terminal call of private exchange system by designating pair {METHOD FOR PROCESSING CALL THROUGH PAIR DESIGNATION IN PRIVATE EXCHANGE SYSTEM}

The present invention relates to a call processing method of a private switching system, and in particular, after designating two extension terminals or more extension terminals subscribed to in a private exchange system as one pair, and selecting one extension terminal selected from two extension terminals. The present invention relates to a call processing method for implementing the same call processing function in another extension terminal.

For reference, the designation as a pair means setting two or more extension terminals as one bundle under a predetermined criterion, and performing the predetermined function at the same time. Based on this, the present invention is described, and more details thereof will be described in the configuration and operation of the following invention.

Nowadays, a private exchange system is installed and operated in most companies and offices, and such a private exchange system is called a PABX (Private Branch Exchanger). The private switching system performs the function of connecting the trunk lines and the stations to each other by a telephone line (commonly referred to as a trunk line) in the premises exchange facility and the belonging switching handling section. At least one extension terminal is subscribed to the private exchange system as described above, and subscribers using the extension terminal receive a call received from an external trunk line or perform a telephone call or a call between the extension terminals. . Moreover, nowadays, the subscribed extension terminal is also implemented as a wireless telephone, so that the extension subscriber can perform the above-mentioned trunk line and extension call wirelessly through the switching system within a predetermined area.

However, in the case where a user simultaneously uses a wired telephone and a cordless telephone, which is the above-mentioned extension terminal, that is, when the extension terminal assigned to an extension-subscribed user is both a wired telephone and a wireless telephone, in the conventional private switching system, the fixed line And the wireless telephone is assigned to use a different extension number, if the call is received by one of the two extension terminals, even if the other station is not the same user can not receive the call. In addition, even when a user wants to perform a specific function through the extension terminal, since the landline phone and the wireless phone are registered as different extension terminals, the corresponding function must be separately performed, which is an extension terminal having the same user. In spite of the fact that it is operated by different extension terminals, it gave a lot of inconvenience to the user. In the future, the spread of private exchange systems in which wired and wireless telephones are subscribed to extension terminals will increase rapidly, and this will increase the number of subscribers who simultaneously use extension terminals implemented as wired and wireless telephones. Is not yet implemented.

Therefore, the present invention designates two extension terminals or more extension terminals subscribed to in a private exchange system as one pair, and the call processing function performed at one extension terminal selected from the two extension terminals is the same in the other extension terminals. When a call is received on either one of the two extension terminals, the two extension terminals can handle the incoming call, and the call execution can be performed between the two extension terminals. Even if an extension terminal is designated as one pair, a method that allows one extension terminal to make a call through another extension terminal during a call, that is, a pair designation of an extension terminal to which an extension is subscribed in a private exchange system, and a call processing method accordingly are proposed.

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

2 is a flowchart illustrating a pair designation method of an extension terminal according to the present invention;

3 is a flowchart illustrating a call processing operation of a paired extension terminal according to the present invention;

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

On the other hand, in the following description of the present invention, when it is determined that detailed descriptions of related well-known functions or constructions may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted, and generally customary in constructing the present invention. Components and functions used as such will be omitted. 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 a user or a chip designer, and the definitions should be made based on the contents throughout the present specification.

Prior to the detailed description of the present invention, the operating principle of the present invention and a schematic configuration thereof will be described below.

First, two extension terminals subscribed to the private exchange system are designated as one pair, and if one station is designated, the first extension terminal is the first primary station, and the other extension terminal is the second extension station. Specified by). In this case, the designated main extension terminal performs all operations and functions in the same manner. For example, in performing the setup and release of a basic call, when a call is made to the first extension terminal, a ring occurs in the second extension terminal like the first extension terminal and any one of the two extension terminals. When a response is performed through, the ring generation is stopped. That is the same as a bridged ordinary home phone. This causes the ring of the first extension terminal to occur even when a call is made to the second extension terminal. However, since the two extension terminals were stations operated independently before being designated as one pair, the two extension terminals have their own extension numbers even after the pair designation. This is different from home bridge phones. Thus, different phones may be called at each extension. In addition, since each has a different extension number, an extension call is possible between the two extension terminals. If one extension terminal is in a call state by the above method, even if a call is received at the other extension, it operates in a call state. This is because the telephone cannot be answered at the same time. In addition, in the present invention, the application function can be performed, for example, the 'landing signal switching' function. When the first extension terminal is set to perform an incoming call switching function to another extension terminal or to another external telephone number, the call that is received by the second extension terminal call is also changed according to the set incoming call switching function. Or transfers the call to an external telephone number. In addition, when the second extension terminal performs the 'Do Not Disturb (DND)' function, the first extension terminal also performs the call rejection function. In the present invention, the two extension terminals are distinguished by prioritizing the first extension terminal and the second extension terminal, when the two extension terminals are designated as pairs. For example, when the first extension terminal previously sets the call forwarding function to the A extension, and the second extension terminal sets the call forwarding function to the B extension, the incoming call is designated when the pair is designated. Since the extension that is switched is different and the correct function cannot be performed, in order to solve this problem, according to the present invention, the first extension and the fourth extension are classified according to priority to follow the function setting of the first extension terminal. will be. The same applies to the aforementioned rejection function.

Hereinafter, an embodiment of the present invention according to the method described above will be described with reference to the accompanying drawings.

First, Figure 1 is a schematic block diagram of a private exchange system in which the present invention is performed.

Referring to FIG. 1, the central processing unit 100 processes a preset program 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 includes a control program for performing call and call waiting functions. The switching circuit 130 switches various tone and voice data, connections between station terminals, 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 ring generator 150 outputs a ring signal in the form of a square wave to the general subscriber circuit 140. The key phone subscriber circuit 160 performs an interface between a plurality of key phone telephones and a 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. On the other hand, an extension terminal subscribed to the private switching system is used in connection with the general subscriber circuit 140 and the key subscriber circuit 160. In addition, in the case of the extension terminal implemented as a wireless telephone, a separate base station is connected to the subscriber circuit, and the function and the call of the wireless telephone are performed through the base station. The tone generator 170 is controlled by the central processing unit 100, and scissor the trunk line to form a trunk line loop. Also, 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 provides a clock function to the CPU 100, and has a timer function for counting a predetermined time.

2 is a flowchart illustrating a pair designation method of an extension terminal according to the present invention. That is, a flowchart illustrating a process of designating two extension terminals that are initially in a standby state as one pair by dividing one into a first extension terminal and the other into a second extension terminal.

2, in step 200, a specific extension terminal is in a standby state. In step 201, it is determined whether the specific extension terminal is designated as the first extension terminal. If it is determined that the specific extension terminal is designated as the first extension terminal, the setting function set before the pair designation is copied to the ROM 120 in which the function execution area of the extension terminal is implemented, and the stored setting function is stored in step 204. It is copied to the function performing area of the extension terminal designated as the second extension terminal and stored. That is, the function that was implemented before the pair designation in the first extension terminal is maintained in the first extension terminal, and the function is performed in the second extension terminal. On the other hand, if it is not the first extension terminal in step 202, in step 203 it is a second extension terminal because the pair is already specified state. Therefore, all previously set functions are cleared and the step 204 is performed. Here, deleting a function means that the setting state of the function is stored in the form of a variable, and this part becomes the default state or the initialization state.

3 is a flowchart illustrating a call processing operation of an extension terminal designated as a pair according to the present invention. That is, FIG. 3 is a flowchart illustrating an embodiment of setting and releasing a basic call after a pair is designated. When a call is received by the first extension terminal or the second extension terminal, the call is answered in response to the incoming call. When a ring occurs in the same extension terminals designated as the pair, and one of the pair of extension terminals designated as the pair receives a call in response to the call, the received extension terminal is in a call state. And a ring occurring at another extension terminal, that is, a second extension terminal, indicates a method of stopping.

Referring to FIG. 3, an incoming call is generated in step 301. Then, in step 302, it is determined whether the extension terminal corresponding to the incoming call is a designated extension terminal. If it is determined in step 302 that the terminal is not designated as a pair, the general call processing operation is performed in step 304. If it is determined in step 302 that the station is a pair designated state terminal, in step 303 it is determined whether the pair designated station terminal is in a standby state. If it is determined in step 303 that the extension terminal is not in the standby state, in step 306, a call processing operation corresponding to a busy (BUSY) is performed. For example, a busy tone is generated to the calling party. If it is determined in the standby state in step 303, the ring of the first extension terminal is generated in step 305, and in step 307 to generate a ring of the second extension terminal paired with the first extension terminal. Here, if the user uses the first terminal as a wired telephone and the second extension terminal as a wireless telephone, a ring occurs at the same time in the wired and wireless telephones. Steps 306 and 307 are performed, and in step 308, it is determined which one of the extension terminals is off-hook. If it is determined in step 308 that the off-hook, and in step 309 the station is not off-hook in step 308 to the standby state. This is the same principle as the bridge telephone used in general household use. When a ring occurs and receives a phone, it is as if the ring on the bridged phone stops. In step 310, the call is performed. In this case, when a call is received by the non-hooked extension terminal, a call tone indicating that the call is in progress is transmitted.

The present invention as described above, by designating a pair of two extension terminals or more extension terminals in the private exchange system as a pair (Pair), there is an advantage that you can receive a call to the absent user from elsewhere. In a private switching system in which a wired or wireless telephone is used as an extension terminal, when the present invention is performed, an effect of receiving an incoming call at any time can be seen more usefully.

Claims (4)

In a pair designation method and a call processing method in a private switching system to which at least two extension terminals having different extension numbers are subscribed to an extension, Designating the selected extension terminals as one pair in the subscribed extension terminals according to a pair designation terminal selection and a pair designation request of the user; A step of setting the hocrich function of the designated extension terminals by replacing the set state of the call processing function set in one side extension terminal with the call processing function of another side extension terminal in the station terminals designated as the pairs as it is; and, In the call processing function setting state, when a call is made to either side of the extension terminals having a call processing function set as the pair, determining whether each of the extension terminals designated as a pair is in a standby state; When in a standby state, processing for ring generation to occur simultaneously with the terminals designated as the pairs in response to the incoming call; In response to a ring occurrence, when an off-hook state of one of the extension terminals is detected in the extension terminals designated as one pair, processing to stop ring generation and standby of other extension terminals; And forming a call path with the corresponding extension terminal detected in the off-hook state and the corresponding calling party of the incoming call. The method of claim 1, When the incoming call is detected to another extension terminal in the standby state designated as one pair in a call formation state of the corresponding extension terminal, processing to transmit a call tone according to the busy state guide to the corresponding calling party of the incoming call. A call processing method for a designated station terminal, which is paired in a private exchange system, further comprising a process. According to claim 1, When the incoming call switching function is set in at least one of the station terminals designated as a pair in the private call switching system implementation state, either side station terminal designated as the pair And when the incoming call is detected, further comprising the step of performing a call transfer process to an extension terminal having the setting of the incoming call forwarding function. The terminal according to claim 1, wherein when at least one of the terminal terminals designated as pairs has set the call rejection function in the implementation of the call rejection function of the private switching system, the call is transmitted to any one of the extension terminals designated as the pair. And if the incoming call is detected, processing the rejection of the incoming call according to the setting of the rejection function.

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