KR100217718B1 - Method for redialing in use automatic answering system - Google Patents

Abstract

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

How to redial when using an auto attendant

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

In order to solve the problem of storing and redialing the input digit in response to the message sent from the automatic response system.

All. Summary of the Solution of the Invention

The digits corresponding to the trunk line telephone number of the automatic answering system and the digits input in response to the message sent from the automatic answering system are distinguished, and the digits corresponding to the telephone number are stored, and the digits corresponding to the telephone number are stored. Do not store the digits entered in response to the message.

la. Important uses of the invention

When using an answering machine, you can redial only the phone number.

Description

How to redial when using an answering machine {METHOD FOR REDIALING IN USE AUTOMATIC ANSWERING SYSTEM}

The present invention relates to a method of redialing, and more particularly, to a method of redialing when using an automatic answering system.

In general, when a redial button is pressed by a user, a redial method converts a digit corresponding to the last dialed telephone number stored in the memory into a DTMF signal and transmits it through the trunk line. In addition, when a user wants to receive various information by connecting to an automatic answering system, the user dials by pressing a number button corresponding to a digit to perform a desired operation in response to a voice message sent from the automatic answering system.

The conventional redial method redials the digits most recently stored in the memory when the redial button is pressed by the user. Therefore, the conventional redial method has a problem that not only a digit corresponding to a phone number but also a digit corresponding to a number button pressed by a user by mistake during a call is stored and dialed together with the phone number when redialing. In addition, when using the automatic answering system, the conventional redialing method stores a selected digit in response to the trunk line number of the automatic answering system and the voice message transmitted from the automatic answering system, and the redial button is pressed by the user. Dial the selected digit again using the telephone number and answering machine stored in memory. Therefore, the conventional redial method has a problem in that a call path is not properly formed because the telephone number and other digit numbers are dialed out together.

Accordingly, an object of the present invention is to provide a method for redialing accurately when using an automatic answering system.

Another object of the present invention is to provide a method of redialing and storing only a digit corresponding to a trunk line number.

Still another object of the present invention is to provide a redial method which does not store an input digit in response to a voice message transmitted from an automatic response system.

The present invention for achieving the above object is to distinguish between the digit corresponding to the telephone number for forming the trunk line loop and the input of the digit in response to the voice message sent from the automatic answering system to store only the digits corresponding to the telephone number The digit is not stored in response to the voice message transmitted from the automatic answering system.

1 is a view showing a key phone system to which the present invention is applied.

2 is a diagram illustrating a control flow of storing a telephone number in a memory according to an embodiment of the present invention.

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

1 is a block diagram of a key phone system to which the present invention is applied. The key phone system 100 includes a trunk line interface 102, a switching circuit 104, an extension interface 106, a DTMF signal generator 108, and a central processing unit. It consists of a 110 and a memory 112, and is connected to the key phone telephone 120 through the extension interface 106.

Referring to Figure 1, the central processing unit 110 controls the overall operation of the key phone system. The trunk line interface 102 detects ring signals applied from a plurality of trunk lines, and controls the trunk lines to form trunk lines loops under the control of the central processing unit 110, and interfaces signals that are incoming from the trunk lines. The switching circuit 104 connects the trunk line interface 102 and the station interface 106 according to the DTMF signal generated by the DTMF signal generator 108 under the control of the central processing unit 110. The station interface 106 interfaces signals transmitted and received between the key phone system 100 and the key phone telephone 120 which is the subscriber. Key phone telephone 120 is composed of a number buttons and various function buttons. Although not specifically illustrated, the function button according to the embodiment of the present invention has a function of determining whether to store an input digit. The key phone telephone 120 may set the function button using an existing button by a program or replace it with an input of a specific code. In addition, the general telephone may further install a button having a function of determining whether to store a separately input digit.

2 is a view showing a control flow for storing a digit in a memory according to an embodiment of the present invention, the central processing unit 110 stores a digit corresponding to a telephone number input through a keyphone telephone in the memory 112; After the function button is pressed, the digits input in response to the voice message transmitted from the automatic answering system are not stored in the memory.

1 and 2, when a user presses a number button corresponding to a trunk line number to access an automatic answering system, the key phone telephone 120 transmits a signal corresponding to the pressed number button through the extension interface 106. Transfer to the central processing unit (110). In step 200, the central processing unit 110 detects that a telephone number is input as the signal. In step 202, the central processing unit 110 stores the digits corresponding to the input telephone number in the memory 112. In step 204, the central processing unit 110 forms a trunk line loop by scissoring a trunk line corresponding to the input telephone number to form a trunk line and a call path. The central processing unit 110 transmits a digit corresponding to the input telephone number to the DTMF signal generator 108. The DTMF signal generator 108 converts the digit corresponding to the transmitted telephone number into a DTMF signal and transmits the digits to the trunk line interface 102 through the switching circuit 104. The trunk line interface 102 sends a DTMF signal to the trunk line. When a trunk line loop is formed through this process and connected to the automatic answering system, the user may enter a digit number input to the memory 112 before inputting a digit number to perform a desired operation in response to a message sent from the automatic answering system. Press the function button with the function to decide whether to save. In operation 206, the central processing unit 110 detects an input of a function button having a function of determining whether to store an input digit into the memory 112. In response to the voice message of the automatic response system transmitted through the trunk line, when the user presses a numeric button corresponding to a digit for performing a desired operation, the central processing unit 110 detects an input of the digit in step 208. . In operation 210, the CPU 110 determines whether a function button for determining whether to store the input digit is input. If it is determined that a function button for determining whether to store the input digit is input, the central processing unit 110 stores the digit input by the user in response to the voice message transmitted from the automatic response system in step 212. Do not save to 112. On the contrary, if it is determined that the function button for determining whether to store the input digit is not input, the central processing unit 110 responds to the voice message transmitted from the automatic response system in step 214 by the user. The input digit is stored in the memory 112.

In this way, whether the input digit is stored in the memory is determined according to the input of the function button. Therefore, the digits corresponding to the trunk line telephone number of the automatic answering system are stored, and the digit selected in response to the voice message transmitted from the automatic answering sheet message after being connected with the automatic answering system is not stored. After performing such a process, the central processing unit 110 detects that the redial button of the key phone telephone 120 is input, that is, the redial command signal is applied to the phone number stored in the memory 112. The corresponding digits are passed to the DTMF signal generator 108. The DTMF signal generator 108 converts the transmitted digit into a DTMF signal and transmits the converted digit to the switching circuit 104. The switching circuit 104 transmits the DTMF signal corresponding to the telephone number to the trunk line through the trunk line interface 102. Through this redial process, the automatic answering system and the trunk line loop are formed.

As described above, the present invention stores only a corresponding telephone number in a memory when using an automatic answering system, and does not store a digit input by a user in response to a voice message sent from the automatic answering system. This has the advantage of redialing the phone number correctly.

Claims (4)

In the redial method, Store the digits entered when dialing a phone number of a CO line, Redial method characterized in that it does not store the digits input after the dialed telephone number and the trunk line loop is formed. The method of claim 1, Redialing the stored digit if the redial command signal is applied after the trunk line loop is blocked. A method for redialing when using an answering machine in a key-phone telephone having at least a function button for setting not to store input digits, Storing the dialed telephone number to form a call path with the automatic answering system; Determining whether or not the function button is input after the telephone line is formed by the dialed telephone number; If it is determined that the function button is input, the method for redialing when using the auto answering system, characterized in that the process does not store the input digits. The method of claim 1, And redialing the digits corresponding to the stored telephone number when the redial command signal is applied after the trunk line loop is blocked due to the end of the use of the automatic answering system.