KR0138389B1 - Key phone system - Google Patents

Abstract

The present invention relates to a key-phone telephone provided with an operator, when an extension of a subscriber to be connected is not clear when a call is requested from an extension line through an entire key-phone telephone speaker phone of a group to which the extension terminal belongs. The present invention relates to a key-phone telephone in which a specific extension subscriber is notified that a call is connected to ensure rapid call formation.

The key phone according to the present invention, when the caller who has received the incoming signal through the trunk line is an extension subscriber who wants to talk at an arbitrary position within the range of the extension group rather than his / her seat, the operator uses the multiple call to receive the incoming signal. The authorized caller notifies the extension subscriber who wants to talk, thus eliminating the operator's repetitive extension connection operation, providing convenience, and eliminating unnecessary trunk occupancy time and long waiting period of the caller who authorized the incoming signal. do.

Description

Multi-Calling Method of Key Phone

1 is a flowchart for connecting a one-to-one call in a conventional key-phone telephone.

2 is a block diagram of a multi-call device for a key-phone telephone according to the present invention

3 is a flow chart for realizing a multi-call method in the present invention shown in FIG.

* Description of the symbols for the main parts of the drawings *

100: main unit 110: central control unit

120: main memory unit 130: switching circuit unit

140: switching memory unit 150: extension connection unit

200A-200N: Extension terminal 210: Main unit connection part

220: control unit 230: switching unit

240: speaker circuit

The present invention relates to a key-phone telephone provided with an operator. Especially, when requesting a connection of a call with any extension subscriber from a trunk line, when the extension subscriber position to be connected is unclear, the entire key-phone telephone speakerphone of the group to which the extension terminal belongs is located. The present invention relates to a multiple call method of a key-phone telephone through which a specific extension subscriber is notified that a call is connected, thereby ensuring rapid call formation.

In general, a key phone is a main device that handles the overall operation of the trunk line, the station, and the station and the extension of the call by connecting a plurality of station subscriber terminals to which each unique number is assigned, the local exchange and a predetermined number of trunk lines. In the conventional key-phone telephone, the operation of the extension connection to the call connection request from the trunk line will be described with reference to FIG.

When the attendant detects an incoming ring signal applied through an external local exchange (step 101), the attendant off-hooks the transmission and reception means, connects the communication path, and then proceeds with the caller who applied the incoming signal. (Step 102). If the caller requests the call to the extension subscriber who wants to make a call in step 102 of the call, the operator temporarily suspends the trunk line to which the call path is connected in order to connect the extension requested by the caller (step 103). The terminal number of the requested extension subscriber is called (step 104), and it is determined whether or not a response is detected from the terminal of the called extension subscriber. (Step 105) A response is detected from the extension subscriber terminal called in the determination of step 105 above. The operator then notifies the extension subscriber of the call request from the specific person (step 106) and confirms whether or not the extension subscriber desires the call. (Step 107). If the extension subscriber desires a call in the confirmation of step 107, the operator performs an on-hook operation to connect the trunk line with the extension line (step 108). If the extension subscriber does not desire the call, the operator re-engages the trunk line. The caller notifies that the extension subscriber who requested the call is absent, checks the memo, and blocks the call (step 115). If the answer is not detected from the subscriber station called in step 105, the operator executes the on-hook operation and cancels the call of the terminal (step 109), where the caller is located where the user of the terminal requesting the call is located. The terminal number of another extension subscriber is called (step 110), and it is determined whether or not a response is detected from the terminal of the called extension subscriber (step 111). In step 106, the operator notifies the extension subscriber of the call request from a specific person, and then executes step 107 to confirm whether or not the extension subscriber desires to call and according to the request of the extension subscriber, step 108 or the above. Step 115 is executed.

If the response is not detected from the extension subscriber station called in step 111, the operator executes the on-hook operation (step 112), and then the caller newly estimates where the user of the terminal requesting the call is located. The terminal number of the other extension subscriber is called (step 113), and it is detected whether or not a response is detected from the terminal of the called extension subscriber. (Step 114) If a response is detected from the terminal of the extension in step 114, the step 106 is repeated. After execution, the step 108 or the step 115 is executed according to the result of the step 107. If the response is not detected from the extension subscriber station called in step 114, the operator executes the on-hook operation, cancels the call of the terminal, reoccupies the reserved trunk line, and the extension subscriber to which the caller wishes to call is absent. (Step 115)

As described above, in the conventional key phone, when the caller who receives the incoming signal does not know the destination of the desired extension subscriber, the extension subscriber repeatedly calls the extension terminal and the extension subscriber wants the call. Since the caller maintains a continuous hold state until the call is connected, unnecessary occupancy of the trunk line occurs and the operator executes a repeated extension call operation, which is inconvenient to use.

The present invention has been made in view of the above-described problems, and its object is that any caller who has received an incoming signal through a CO line does not correctly recognize the destination of an extension terminal subscriber who wants to call. Through a group of key phone telephone speaker phones, certain callers may be notified of a call request from a certain caller to provide convenience for a call connection with an extension terminal subscriber at an incorrect location.

A feature of the present invention for achieving the above object is in the method of accessing an extension terminal of a key-phone telephone, after a caller who receives an incoming signal through a trunk line holds a trunk line to connect a call path of an extension subscriber desired to make a call. Detecting a response from an extension subscriber by calling a corresponding extension terminal; and detecting a response from the extension subscriber by notifying the extension subscriber of a call request from a specific person, and then detecting whether a call is desired. And in the process, connecting the suspended trunk line to the extension subscriber if the extension subscriber desires to call and notifying the extension subscriber that he / she is absent if the extension subscriber does not wish to call, and then blocking the call line of the reserved trunk line. However, if no response is detected from the extension subscriber in the above process, Determining whether the destination is located in the extension group, and if the destination of the extension subscriber is in the extension group range, the call is requested to a specific extension subscriber through the speakerphone of the entire extension terminal by entering the mode of multiple calls. Detecting a response from the corresponding extension subscriber after notifying that there is a message, and if the response is detected from the corresponding subscriber in the above process, the connection of the trunk line is controlled according to the desire of the call, and if the response is not detected from the corresponding subscriber, It provides a multi-call method of a key-phone telephone characterized in that it further comprises the step of blocking the possession of the trunk line after notifying that the extension subscriber is absent.

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

2 is a block diagram illustrating the configuration of a multi-call device for a key-phone telephone according to the present invention, and FIG. 3 is a flowchart for realizing the multi-call method in the present invention shown in FIG.

As can be seen in FIG. 2, the present invention provides a main device including a central control unit 110, a main memory unit 120, a switching circuit unit 130, a switching memory unit 140, and an internal connection unit 150. It consists of a plurality of extension terminals (200A-200N) consisting of a 100 and the main unit connection unit 210, the control unit 220, the switching unit 230 and the speaker circuit unit 240, the central control unit 110 of the main unit 100 The caller establishes a call between the calling party and the extension terminal subscriber who has applied the incoming signal through the trunk line, and if the location of the extension terminal subscriber is fluid, the caller who has received the incoming signal is notified of the call request. Controls the overall operation of the host device 100 such as a call. The main memory unit 120 stores and stores general program data for performing the operation of the central control unit 110. The switching memory unit 140 stores program data for one-to-one or one-to-multiple call connection of the operator in response to the call request of the caller authorized from the trunk line. The switching circuit unit 130 performs a switching operation for connecting one-to-one or one-to-multiple stations in accordance with the control signal of the central controller 110.

In addition, the main unit connection unit 210 provided in the plurality of extension terminals 200A to 200N interfaces with data and voice signals which are connected to the extension unit 150 of the main unit 100 and transmitted and received. The controller 220 controls the overall operation of the extension terminal for the call formation between the trunk line and the extension or the call between the extension and the extension through the main device 100. The speaker circuit unit 240 transmits an incoming ring signal for requesting connection to the call from the main device 100 and a call request from a certain caller to a specific extension subscriber in the case of multiple communication.

The one-to-multiple communication operation of the present invention having the function as described above will be described with reference to FIG. 3 as a flowchart.

When the central control unit 110 of the main unit 100 detects an incoming signal requesting a call from an external local exchange, the central control unit 110 transmits a predetermined ringing signal according to a program stored in the main memory unit 120. The call is sent to the key-phone telephone speaker phone of the operator (step 201). At this time, the operator switches off the transmission and reception means according to the incoming ring, and then proceeds to the call with the caller who applied the incoming signal (step 202). When a call is requested to the extension subscriber who wants to make a call, the operator temporarily suspends the CO line to which the call path is connected in order to connect the extension requested by the caller (step 203), and then the extension requested by the caller through the key input means. The terminal number of the subscriber is entered and called (step 204), and it is determined whether or not a response is detected from the terminal of the called extension subscriber. (Step 205). When a response is detected from the extension subscriber station called in the determination of step 205, the operator informs the extension subscriber of the request of a call from a specific person (step 206) and confirms whether or not the extension subscriber desires a call. (Step 207) When the extension subscriber desires a call in the confirmation of step 207, the operator performs an on-hook operation to connect the trunk line and the extension line (step 209) to form a call between the caller of the trunk line and the extension subscriber (step 209). Step 210) If the extension subscriber does not want to talk, the operator reoccupies the trunk line to notify that the extension subscriber who requested the call is absent, checks the memo, and blocks the call. (Step 208) If the answer is not detected from the extension subscriber station called in the determination of step 205, the operator executes the on-hook operation, cancels the call of the terminal, and then the caller who applied the incoming signal requests the extension. It is detected whether or not the destination of the subscriber is within the range of the extension group (step 211). When the destination of the desired extension subscriber is out of the range of the extension group in the detection of step 211, the operator calls the extension subscriber terminal sequentially and applies the incoming signal as in the conventional extension subscriber call. Detects whether there is an extension subscriber who wants to talk, and notifies that the call is connected or absent (step 212).

If the caller who applied the incoming signal in step 211 detects that the destination of the desired extension subscriber is within the range of the extension group, the operator sets the multi-call mode through the key input means, and then the center of the main apparatus 100 is set. The control unit 110 controls the switching circuit unit 130 to connect the entire extension group according to the program set in the switching memory unit 140, and then the entire extension to indicate that there is a call request to a specific subscriber guided by the operator. It transmits through a terminal speaker phone (step 213). At this time, since the guide voice of the operator is transmitted to the extension subscriber terminals of the entire group, one-to-multiple communication is performed from the operator's point of view, and one-to-one communication with the operator is performed from the station subscriber's point of view.

Thereafter, it is determined whether or not a response is detected from an extension subscriber having a call request from any of all extension group terminals (step 214). If no response is detected, the attendant hooks up the transmission and reception means and is suspended. After reoccupying the CO line, the caller who applied the incoming signal is notified that the desired extension subscriber is not present (step 215), and cuts off the communication line with the CO line.

If a response is detected from any terminal in step 214, the operator executes step 206 as described above after executing step 206 of informing the subscriber of the responding extension terminal that there is a call request from a specific person through the trunk line. do.

As described above, the key-phone telephone according to the present invention, if the caller who applied the incoming signal through the trunk line is an extension subscriber who wants to call the call at an arbitrary position within the range of the extension group rather than its own seat, the operator makes multiple calls. By using the caller, the caller who has received the incoming signal notifies the desired extension subscriber, thus eliminating the repeated extension connection operation of the operator, thus providing convenience for use, and unnecessary call occupancy time of the caller who applied the incoming signal. Prolonged hold waits are excluded.

Claims (1)

In a method of accessing an extension terminal of a key phone, a caller who receives an incoming signal through a CO line suspends the CO line to connect a call path of the desired extension subscriber and then calls the corresponding extension terminal to detect a response from the extension subscriber. And detecting whether the extension subscriber wants to call after notifying the extension subscriber of the request of a call from a specific person. Connecting the suspended trunk line to an extension subscriber and notifying the extension subscriber that he / she is absent if the extension subscriber does not wish to make a call, and then blocking a call line of the reserved trunk line, wherein the response is detected from the extension subscriber in the process. If not, determine whether the destination of the extension subscriber is located in the extension group. If the destination of the extension subscriber is in the extension group range, the call is entered into the multiple call mode, and the specific extension subscriber is notified of the call request through the speakerphone of the entire extension terminal, and then the response is received from the extension subscriber. In the process of detecting and detecting a response from the corresponding extension subscriber in the above process, the connection of the trunk line is controlled according to the desire of the call, and if the response is not detected from the corresponding subscriber, the notification of the extension subscriber is absent and the possession of the trunk line is acquired. Multi-call method for a key-phone telephone further comprising the step of blocking.