KR19990003258A - Extension Call Method of Key Phone System - Google Patents

Abstract

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

It relates to an extension call method in a key phone system.

I. The technical problem to be solved by the invention

The present invention provides an extension telephone method for displaying information of a called terminal terminal on a calling terminal terminal requesting an extension call in a key phone system, and allowing a user to select whether to call the extension call.

All. Summary of Solution of the Invention

When there is a request for an incoming call from the calling terminal terminal subscribed to the key phone system to the called terminal telephone, information configured in correspondence with the called terminal telephone is displayed on the display unit of the calling terminal telephone and the call is made accordingly. An extension call method is provided in a key phone system capable of confirming called party information.

la. Important uses of the invention

The present invention is used in a key phone system that requires confirmation of the extension of the called party.

Description

Extension call method of keyphone system which can confirm called party information

The present invention relates to a method for making an extension call in a key phone system. In particular, the information on the called end terminal phone is displayed on the calling terminal phone requesting an extension call in the key phone system, and the user can select whether to make the extension call. It is about an extension call method to make.

Nowadays, almost all hotels, exhibition halls, call centers, and other places and offices that serve customers are operating keyphone systems in order to provide services to customers. Also referred to as Branch Exchanger. The key phone system serves to connect the trunk lines and the stations by means of telephone lines (commonly referred to as trunk lines) in the premises exchange facility and the belonging switching handling section. In particular, in the system, the stations are connected to each other. The extension call function is one of the important functions for efficient business processing, customer management, and customer satisfaction.

However, when a customer uses the subscriber terminal phone of the system while using the key phone system, the user cannot know the information about the key phone system, so that the service provider who wants to provide better customer service through the key phone system has a lot of inconveniences. For example, if there is a call from a customer at the front desk of the hotel, it is not possible to check whether the customer is in a state or what the customer is. As a result, a problem of deteriorating the quality of service occurred.

Accordingly, an object of the present invention is to provide an extension call method for displaying information on a called terminal phone on a calling terminal phone requesting an extension call in a key phone system, and correspondingly selecting a call origination of the extension call. do.

Another object of the present invention is to provide an extension call method that can select whether or not to perform an extension call in response to the call from the calling party in the extension call method of the key phone system.

In order to achieve the above object, the present invention provides a display unit of the calling terminal terminal when the call request is received from the calling terminal terminal subscribed to the key phone system to the called terminal terminal. The present invention proposes an extension call method in a key phone system capable of confirming called party information, in which the call is made or not.

1 is a block diagram of a typical keyphone system in which the present invention is carried out.

2 is a flowchart illustrating an extension call method of a keyphone system capable of confirming called party information according to 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 conventional key phone system.

Referring to FIG. 1, the central processing unit 100 processes a set program to control a call switch, and controls 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 control programs and initial service data for performing calls and various functions, and is generally implemented as an EEPROM. The switching circuit 130 switches various tone and voice data, connections between stations, and connections of trunk lines under the control of the CPU 100. The general subscriber circuit 140 performs the interface between the general telephone which is a terminal telephone of a plurality of subscribers and the device. 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 interfacing between a plurality of key phone telephones and devices which are terminal phones of the key phone system. 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. The tone generator 170 is controlled by the central processing unit 100, and scissor the trunk line to form a trunk line loop. In addition, 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 information on the subscribed terminal telephone user is set and registered in the ROM 120 of the system. Examples of the user information include 'name', 'language', 'VIP presence', 'checkout time', and 'check-in time'. It is registered and set up according to the situation where the system is used. In addition, the key-phone telephone connected to the key-phone subscriber circuit 160 is provided with a function key for the user to perform or terminate the call when an extension call is requested, which is called a call request function key in the present invention. That is, when the user presses the outgoing request function key in the key phone, the call is connected to the called party and the call is performed. If not, the call is not connected to the called party.

2 is a flowchart illustrating an extension call method of a keyphone system capable of confirming called party information according to the present invention. The following operation is performed by the CPU 100.

If the called extension is dialed in step 202, it is determined in step 204 whether the dialing is completed. If it is determined in step 204 that the dialing is completed, in step 206, information of the called party corresponding to the dialed extension number stored in the ROM 120 is detected and confirmed. In step 208, the confirmed called party information is displayed on the display unit of the calling party's phone. In step 210, it is determined whether a call request function key is input. That is, the user may select whether to perform an extension call based on the contents of the display unit. If it is determined in step 210 that the call request function key is input, the call is sent to the called party in step 212. If it is determined in step 210 that the call request function key is not input, the extension call operation is terminated. In step 214, it is determined whether there is a response from the called party in response to the extension call, and if there is a response, the call is performed in step 216. If there is no response in step 214, step 212 is repeated.

As described above, according to the present invention, in the extension call method of the keyphone system, since the caller side can receive information from the calling party and select whether to make an extension call in response thereto, various customer management services using the keyphone system can be selected. The office or place where the work is performed has the effect of performing more efficient customer service and customer management.

Claims (5)

In an extension call method of a key phone system in which a key phone telephone and a general telephone having a display unit are set up and subscribed to a plurality of terminal telephones, When an incoming call request for an extension call is made from the calling keyphone telephone subscribed to the key phone system to the called terminal phone, the information configured corresponding to the called terminal phone is displayed on the display unit of the calling keyphone phone. How to make an extension call on a phone system where you can check the information. The method of claim 1, The information configured corresponding to the called party's terminal telephone is And the information on the called party's terminal telephone user is stored in accordance with the information protocol set in advance in the key phone system. The method of claim 1, After displaying the called party's terminal telephone information on the display unit of the calling party's telephone phone, if a predetermined call request function key implemented in the keypad system is input in response, the incoming call is received from the extension corresponding to the incoming call of the extension call. An extension call method in a key phone system capable of confirming called party information, characterized in that the call is made to a terminal phone. The method of claim 3, If the outgoing call request function key is not input, the incoming call request is terminated. The method of claim 3, The call request function key is The telephone call system is provided in a key phone system subscribed to the key phone system, and the user can determine the call origination of the call phone user is an extension call method in the key phone system capable of confirming the called party information.