KR100217722B1 - Chain speed dial method - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs:

A chain speed dial method of a key phone system.

I. The technical problem the invention is trying to solve:

The chain speed dial function is implemented with one speed dial buffer to reduce the waste of memory and provide a chain speed dial method for user convenience.

All. The gist of the solution of the invention:

After the Speed Dial Assignment Code Key is entered in the Chain Speed Dial Registration Mode, when the phone number and the Chain Code Key are repeatedly entered, a plurality of telephone numbers are stored in one Speed Dial buffer according to the order entered. Each time the same speed dial assignment code key is entered following the speed key, the digits of the telephone numbers existing behind the chain code are sequentially transmitted.

la. Important uses of the invention:

One speed dial buffer is used to implement chain speed dials.

Description

Chain speed dial method {CHAIN SPEED DIAL METHOD}

The present invention relates to a key phone system, and more particularly to a chain speed dial method.

In general, when using a chain speed dial in the speed dial function of a key phone system, at least two speed dial buffers should be used. That is, in a key phone system, the chain speed dial function sends a dial of a designated speed dial buffer by pressing a speed key or a speed code and then dials a designated speed dial buffer by pressing another speed key or speed code.

As described above, two or more speed dial buffers are always used to implement a chain speed dial function in a key phone system. Accordingly, a speed key or a speed code is separately designated.

As described above, when the chain speed dial is conventionally implemented, a waste of memory is caused, and the speed dial buffer may be insufficient when the speed dial function is implemented due to the limited number of speed dial buffers. In addition, speed keys and speed codes can be designated separately, thus reducing user convenience.

Accordingly, an object of the present invention is to provide a chain speed dial method that can implement a chain speed dial function using a single speed dial buffer to reduce memory waste and facilitate user convenience.

1 is a block diagram of a conventional key phone system to which the present invention is applied;

2 is a flowchart illustrating a chain speed dial assignment according to an embodiment of the present invention;

3 is a flow diagram of a chain speed dial according to an embodiment of the present invention.

The present invention for achieving the above object is a speed dial assignment code key in the chain speed dial registration mode, after the phone number and the chain code key is repeatedly input a plurality of telephone numbers in accordance with the order entered Stored in the dial buffer, the digits of the telephone numbers existing behind the chain code are dialed sequentially whenever the same speed dial assignment code key is entered following the speed key in the hook-on state.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, referring to FIG. 1, which shows a block diagram of a conventional key phone system to which the present invention is applied, the central processing unit 119 controls call switching and controls each unit to provide various services to a user. The ROM 120 stores programs and initial service data of the central processing unit 119 for performing basic calls and various functions. A random access memory (RAM) 121 temporarily stores a program and processing data of the central processing unit 119 and includes a call buffer. The general subscriber circuit 112 supplies call currents to the subscriber stations 112-1 and 112-2 under the control of the central processing unit 119, and the subscriber stations 112-1 and 112-2 and the key phone system. Interface signals between them. The switching circuit 111 switches various tones and voice data under the control of the central processing unit 119. The ring generator 113 generates a ring signal and supplies the ring signal to the subscriber line through the general subscriber circuit 112. The CO line subscriber circuit 114 seizes CO lines under the control of the central processing unit 119 to form a CO line call loop, and interfaces signals between the CO lines and the key phone system. The key phone subscriber circuit 115 selectively connects an extension line and a trunk line to the key phone subscriber under the control of the central processing unit 119, and supplies power to the key phone terminals 115-1 and 115-2, and at the same time, the key phone terminals 115-1 and 115-2. Interface between the key-phone systems. The tone supplier 116 generates various tones under the control of the central processing unit 119 and outputs them to the switching circuit 111. The dual tone multi frequency (DTMF) receiver 117 analyzes the MFC (Multi Frequency Code) generated from the general telephone of the subscriber and applies the digit data to the central processing unit 119. The DTMF transmitter 118 generates an MFC signal under the control of the central processing unit 119 and outputs it to the switching circuit 111.

2 illustrates a process of allocating a chain speed dial to one speed dial buffer according to an embodiment of the present invention in the key phone system as described above, which is performed by the central processing unit 119. First, if the chain speed dial registration mode is set by the user of one of the phone terminals 115-1 and 115-2, the CPU 119 enters the chain speed dial registration mode in step 211. Thereafter, when the speed dial allocation code key is input in step 212, the CPU 119 selects the speed dial buffer to be allocated in the RAM 121 by the speed dial assignment code key in step 213. FIG. The CPU 119 displays the contents of the selected buffer in step 214. In this state, when the telephone number key is input by the user, the CPU 119 displays the telephone number in step 216 and stores the phone number in the speed dial buffer, and then performs step 217. Otherwise, if the telephone number key is not input, the CPU 119 performs step 217 as it is.

In step 217, the central processing unit 119 checks whether the delete key is input, and when the delete key is input, deletes the contents of the speed dial buffer in step 220, and then proceeds to step 215. At this time, if the delete key is not input and the chain code key is input, the chain speed dial function is implemented. Therefore, the CPU 119 stores the speed dial buffer in step 219 and then proceeds to step 215. . Accordingly, the process of storing the telephone number is repeated. That is, the steps 215, 216, 218, and 219 are repeated, and the telephone number and the chain code are alternately stored in the speed dial buffer.

In addition, if the chain code key is not input in step 218 and the speed allocation code key is input in step 221, the CPU 119 proceeds to step 213 and corresponds to the input speed allocation code key. Select the allocation buffer to be used. In addition, if the end key is input in step 222 to end the chain speed dial registration mode, the CPU 119 ends the process of storing the chain speed dial telephone number in one speed dial buffer.

Thus, multiple phone numbers for chain speed dials are stored in one speed dial buffer.

3 is a flowchart for performing a chain speed dial according to an embodiment of the present invention and is performed by the central processing unit 119. First, when the speed dial assignment code is input following the speed key in the hook-off state in step 311, the central processing unit 119 stores the contents of the speed dial buffer corresponding to the speed dial assignment code in steps 312 and 314. Search for. Thereafter, the central processing unit 119 displays a message indicating that the service is terminated in step 316 if the content does not exist in the corresponding speed dial buffer in step 315. On the contrary, if the phone number exists in the buffer in step 315, the central processing unit 119 transmits the digit through the DTMF transmitter 118 in step 317. If the same speed dial assignment code key as in step 314 is input in steps 318 and 319, the central processing unit 119 has a chain speed phone number to be sent after the chain code in step 320. Check to see At this time, if there is a chain speed telephone number to be sent, the central processing unit 119 transmits a digit corresponding to the telephone number in step 321, and then proceeds to step 318.

Therefore, chain speed dialing is possible using one speed dial buffer.

For example, if the chain code is C and the contents are stored in the speed dial buffer 0 such as 00: 9-0124602831C4602834 *, when the user inputs a speed dial allocation code key of 0, the central processing unit 119 first starts with 9 Grab the trunk line of the group and send 0124602831. Thereafter, when the speed dial assignment code key of 0 is input again by the user, the CPU 119 transmits 4602834 behind the chain code C. FIG.

As described above, the present invention has the advantage of reducing the waste of memory since one buffer is used without allocating a separate chain speed buffer.

Claims (2)

In the chain speed dial method of the key phone system, Displaying the contents of the selected speed dial buffer when a speed dial assignment code key for selecting the speed dial buffer is entered in the chain speed dial registration mode; Storing the plurality of telephone numbers in the speed dial buffer according to the input order when a telephone number and a chain code key are repeatedly inputted; Sending a digit of the first telephone number of the corresponding speed dial buffer according to the speed dial assignment code key entered following the speed key in the hook-on state, And a step of sequentially transmitting digits of telephone numbers existing behind the chain code whenever the same speed dial assignment code key is input. The chain speed dialing method of claim 1, further comprising deleting the contents of the speed dial buffer when a delete key is input while displaying the contents of the buffer.