KR19990058029A - How to adjust ring tone for each CO line in key phone system - Google Patents

Abstract

The present invention relates to a ring ring tone control method for ringing ring tone tone differently for each CO line when the ring is ringing in the key phone system.

After selecting ring tone color for various types of CO lines, if there is ring call through the CO line, the ring tone is controlled by the designated station according to the type of CO line. Recognize the priority of an incoming call.

Description

How to Adjust Incoming Tone by CO Line in Key Phone System

The present invention relates to a ring tone control method for each trunk line in a keyphone system, and more particularly, to a ring tone ring tone control method for ringing a ring tone differently for each trunk line when a ring is received in a key phone system.

Currently, the phone system provides an option to select a ring tone for each phone. However, the function to distinguish the incoming ring by each CO line is not currently provided. When various types of trunk lines, ie, analog trunk lines, digital trunk lines, DISA trunk lines, and ISDN lines, are used in the keyphone system, calls received from a specific trunk line provide ring tone colors differently. It's easy to see if a call is coming. Therefore, the function of providing a ring ring tone differently for each incoming trunk line was required.

Accordingly, an object of the present invention is to provide a ringing tone control method for controlling ring tone ringing tone differently depending on the trunk line when ringing ringing is present in the key phone system.

1 is a diagram illustrating a network connection between a general trunk line and a key phone system

2 is a control flowchart for designating a ring tone for each trunk line according to an embodiment of the present invention;

3 is a control flow diagram for generating different ring tone colors for each trunk line according to an embodiment of the present invention.

In order to achieve the above object, the present invention recognizes the type of CO line that is received in ring tone by controlling the ringing tone to be differently ringed according to the type of CO line received when there is a ring call in the key phone system. It is characterized by.

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

1 is a block diagram of a key phone system according to an embodiment of the present invention.

The controller 10 controls call switching by accessing a preset program, and controls to generate different incoming ring tones depending on the type of the trunk line when ringing is received through various services and trunk lines. The memory unit 12 includes ROM and RAM, and includes the program initial service data for executing calls and various functions. The data generated during program execution and address values for selecting various kinds of incoming voices and incoming voices for each trunk line are selected. Save it. The trunk line subscriber circuit 14 forms a trunk line loop by scissoring the trunk line in response to the control of the controller 10, and interfaces a signal coming from the trunk line. The subscriber subscriber circuit 16 supplies the voice current in the voice band to the subscriber's key phone and the general telephone, and performs interfacing between the extension telephone and the main device. The switching circuit 18 switches various tones and voice data under the control of the controller 10. The tone generator 20 generates the various tone signals in response to the control of the controller 10 and provides them to the switching circuit 18. The ring generator 22 supplies a square wave shaped ring signal to the switching circuit 18 in response to the control of the CPU 10. The DTMF transceiver 24 outputs a DTMF (Dual Tone Multi Frequency) signal under the control of the controller 10, analyzes DTMF (Dual Tone Multi Frequency) received from the subscriber of the subscriber subscriber circuit 16, and analyzes the corresponding digit data. It is applied to the control unit 10.

2 is a control flowchart for designating a ring tone for each trunk line according to an embodiment of the present invention;

Displaying the ring tone by CO line when the switch button is pressed in the idle state;

Displaying the ring tone color and sequentially transmitting the ring tone color provided when a designated button for selecting a trunk line is input;

When the ring tone is sequentially transmitted, a process of selecting a desired ring tone is performed.

3 is a control flow diagram for differently generating ring tone for each trunk line according to an embodiment of the present invention.

Detecting whether a ring tone assigned to the called station is designated when there is a ringing call from the trunk line;

When the ring tone assigned to the called line is designated, the ring tone data designated for each trunk line is transmitted to the designated station.

1 to 3 will be described in detail a preferred embodiment of the present invention.

First, when the user selects and specifies the ring tone ring tone for each trunk line with reference to FIG. 2, the controller 10 proceeds to step 102 in step Idle of step 101 and checks whether the switch button is pressed from the key phone. If the button is pressed, go to step 103. In step 103, the controller 10 displays a "Ring Color Per Trunk" message indicating that the trunk voice ring tone mode. Then, when the user inputs a designated button for selecting the trunk line in step 104, the controller 10 receives the input and displays LINE701: Ring Frequency # 1 on the display device of the key-phone telephone in step 105, and proceeds to step 106. In step 106, the controller 10 sequentially transmits the ring tone through the key-phone telephone by the type of the ring tone and proceeds to step 107. In step 107, the controller 10 checks whether the ring tone color change designation button is pressed from the key-phone telephone, and proceeds to step 108 when the ring tone color change designation button is pressed. In step 108, the controller 10 displays LINE701: Ring Frequency # 2 on the display device of the key-phone telephone and proceeds to step 109. In step 109, the controller 10 checks whether the next CO line selection key is pressed from the key phone, and starts again from step 105 when the next CO line selection key is pressed, and proceeds to step 110 when the next CO line selection key is not pressed. In step 110, the controller 10 checks whether the switch button is pressed from the key-phone telephone, and when the switch button is pressed, terminates the operation for selecting a ring voice and returns to step 108 when the phone button is not pressed.

As described above, an operation of generating a ring signal to an extension subscriber designated as a ring tone when a ring call is received after selecting and designating a desired ring tone for each trunk line will be described with reference to the flowchart of FIG. 3.

In step 201, the controller 10 detects whether the ring signal is received through the trunk line and proceeds to step 202 when the ring signal is received. In step 202, the controller 10 checks whether an extension or an extension group is registered in a buffer allocated to the called party line. The structure assigned to each trunk line is as follows.

Struct {unsigned short Day_ring_table [NO_OF_DRING]; unsigned short Night_ring_table [NO_OF_NIT_RING]; unsigned short Trunk_ring_color_type;} Ring_Service_per_trunk Ring + Service_per_trunk WA_ring_service_pe_trunk [NO_OF_PORT]

As described above, the station and the station group for each CO line are composed of a buffer for storing the tone and ring tone for each CO line. Once the ring arrives at the CO line, the first thing we see is Trunk_ring_color_type_field. If the station or extension group is registered, the control proceeds to step 203 and if the buffer is empty, the controller 10 services as it is. If the ring tone type is specified, the control unit 10 transmits the trunk_ring_color_type to the subscribers registered to Day_ring_table in step 204. Send ring tone data to key phone. Then, in step 205, it checks whether the service is completed as much as the designated inner ringer, and if the service is not completed, proceeds to step 204, and if the service is completed, proceeds to step 206. In step 206, the control unit 10 transmits the spline ring data to the designated station to be forwarded to, and proceeds to step 207. In step 207, the controller 10 checks whether the called extension is answered, and returns if the called extension is not answered. If the called extension is answered, the controller 10 proceeds to step 20. In step 208, the controller 10 turns off the CO line ring data to the designated station to which the call is received and proceeds to step 209. In step 209, the controller 10 transmits first ring tone data for each extension designated. In step 204, if the hook-off is detected, it is checked whether the hook-off is detected from the extension subscriber's telephone in which the remaining telephone number is displayed. In step 204, the controller 10 automatically dials the external subscriber's phone number displayed on the display unit, and proceeds to step 205. FIG. In step 205, when the counterpart (external subscriber) responds, the controller 10 forms a communication path to perform a call and ends the operation.

As described above, the present invention has an advantage in that it is possible to easily determine the extension to be urgently received by ringing ringtones at a site using various trunk lines in a key phone system or a site where a specific trunk line should be answered first.

Claims (3)

In the method of controlling the incoming tone for each trunk line differently in the key phone system, After the ring tone is selected and designated by various types of CO lines, the ring tone is controlled by the designated station according to the type of CO line received when there is a ring call. How to adjust incoming tone by CO line in key phone system. In the method of controlling the incoming tone for each trunk line differently in the key phone system, The process of selecting ring tone by different kinds of CO lines, Detecting whether a ring tone assigned to the called station is designated when there is a ringing call from the trunk line; And when the ring tone assigned to the called line is designated, transmitting ring tone data designated for each trunk line to the designated station. The method of claim 2, wherein the selecting of the ring tone for each trunk line is performed by: Displaying ring tone for each CO line when the switch button is pressed in the idle state; Displaying the ring tone color and transmitting the ring tone color sequentially as the ring tone color type provided when a designated button for selecting a trunk line is input; When the ring tone is sent out sequentially, the ring tone tone control method according to the trunk line characterized in that it comprises the step of selecting the desired ring tone color. .