KR100590861B1 - Method for switching the request signal of telephone call - Google Patents

Abstract

The present invention relates to a method for switching a telephone call request signal, and an object of the present invention is to switch to another extension subscriber without receiving the telephone call request signal when the extension subscriber receives a telephone call request signal. It is to provide a method to make.

On the other hand, the configuration of the present invention for achieving the above object comprises the steps of determining whether an incoming call signal for a call to any one of the extension subscribers connected to the exchange system received from the outside; As a result of the determination, when the incoming call signal is received, connecting the incoming call signal to a corresponding extension subscriber for the call; Determining whether to convert an incoming call signal connected to the corresponding extension to one of the extension subscribers; And when the incoming call signal is switched, selecting one of the extension subscribers and then switching the incoming call signal.

According to the present invention, a call can be diverted to another extension subscriber who can answer a call when several calls are being made at the same time by allowing the user to switch the incoming call without using a computer communication application. There are advantages to it.

In addition, it can be effectively used when an extension subscriber makes an important call and cannot receive an incoming call or is an operator who handles multiple calls.

Call, call, request, signal, conversion, way

Description

Method for switching the request signal of telephone call}             

1 is a block diagram of a private exchange system to which the present invention is applied;

2 is a system configuration diagram showing an example in which a method for switching a telephone call request signal is used according to the present invention;

3 is a flowchart illustrating a method of switching a telephone call request signal according to the present invention.

<Description of the code | symbol about the principal part of drawing>

100: control unit 101: memory

102: trunk line connection unit 103: switching unit

104: DTMF receiver 105: DTMF transmitter

106: subscriber connection unit 107: ring generating unit

108: tone generating unit 120: control terminal

130: timer 200: exchanger system

201: server 211: extension telephone

221: computer

The present invention relates to a method for diverting a telephone call request signal, and more particularly, in a private exchange system, when a telephone call comes to an extension subscriber, the extension subscriber switches to another extension subscriber who can receive a call without answering the call. It is about how to.

First of all, PBX stands for Private Branch Exchange.

An internal exchange is an exchange which performs exchange connection between the extension telephones of the premises (local telephone line) telephones or between the extension telephones and the trunk lines (telephone telephone telephone lines) at workplaces such as government offices, companies, factories and hotels.

The branch exchange system is a revolving premises exchanger that performs all connections such as incoming / outgoing connections from trunk lines to stations, outgoing connections from stations to trunk lines, and interconnections between stations. After the change, it has evolved and developed into an electronic branch exchange (EPBX) of accumulated program control method using a microprocessor or IC memory.

The Electronic Branch Exchange (EPBX) has the ability to perform more than 100 types of services, such as timed calls and simultaneous data transfer, and is an integral part of the local area network, as well as the ISDN. It became.

There are two types of currency path methods: the spatial division currency path method and the time division currency path method. A digital PBX, which encodes and exchanges an audio signal (analog signal) in several forms of electric signals, is called a digital PBX.

Digital PBX connects OA devices such as PCs, word processors, and facsimile machines used in the premises to convert and multiply data and voice into digital signals so that multiple signals can be simultaneously transmitted and communicated on a single line (transmission path). .

Therefore, the digital PBX is a key device of the digital network, which is a more advanced means of communication, and occupies a very important position for effective LAN construction and ISDN construction.

In using such a private exchange, when the call was transferred, the incoming subscriber received the incoming call and then the extension subscriber transferred the call in the busy state.

However, in order to switch the incoming call as described above, information on the extension subscriber telephone to be switched to the private terminal is specified in advance and automatically switched.

In particular, in the case of the extension subscriber used by the operator, a plurality of calls are received by one extension subscriber phone. In this case, only a specific call is picked up and there is a disadvantage in that the subscriber cannot directly switch without the call of the extension subscriber.

Accordingly, the present invention was devised to solve such problems, and an object of the present invention is to provide an extension subscriber with another extension subscriber without receiving the telephone call request signal when a telephone call request signal is generated. It is to provide a method to convert.

In order to achieve the above object, the present invention provides a method for converting a telephone call request signal, comprising: determining whether an incoming call signal for calling with one of the extension subscribers connected to the exchange system has been received from the outside; As a result of the determination, when the incoming call signal is received, connecting the incoming call signal to a corresponding extension subscriber for the call; Determining whether to convert an incoming call signal connected to the corresponding extension to one of the extension subscribers; And when the incoming call signal is switched, selecting one of the extension subscribers, and then switching the incoming call signal.

Hereinafter, the objects, features, and advantages of the present invention described above will be described in more detail with reference to the preferred embodiments of the present invention shown in the accompanying drawings.

1 is a block diagram of a private switching system to which the present invention is applied, and includes a control unit 100, a memory 101, a trunk line connecting unit 102, a switching unit 103, a DTMF receiving unit 104, and a DTMF transmitting unit 105. And subscriber connection unit 106, ring generation unit 107, tone generation unit 108, extension subscriber's telephone 111 ~ 11n, control terminal 120 and timer 130.

Referring to Figure 1 describes the overall operation of the private exchange system to which the present invention is applied.

The controller 100 performs the overall control operation of the private exchange system.

The memory 101 stores a program for the control operation of the other control unit 100 in the embodiment of the present invention, stores data generated under the control of the control unit 100, and the call forwarding function is not set in the system. Save the extension or group of extensions to which the call is forwarded.

The trunk line connecting unit 102 transmits a signal transmitted from the exchanger connected through the trunk line to the switching unit 103 under the control of the controller 100.

The switching unit 103 switches the communication path between the trunk line connecting unit 102 and the subscriber connecting unit 106 under the control of the control unit 100.

The DTMF receiving unit 104 is connected to the control unit 100 and the switching unit 103, and converts the DTMF signal output from the switching unit 130 into digital data and outputs the digital data to the control unit 100.

When the control unit 100 and the switching unit 103 are connected, the DTMF transmitter 105 outputs data output from the control unit 100 through the switching unit 103 as a DTMF signal.

The subscriber access unit 106 transmits a signal transmitted from the switching unit 103 to the connected telephones 111 to 11n under the control of the control unit 100, and transmits a signal transmitted from the connected telephones 111 to 11n. 103).

The ring generating unit 107 generates a ring signal and connects through the subscriber access unit 106 when a call request is made from a specific telephone of the trunk line connection unit 102 or the subscriber access unit 106 under the control of the control unit 100. To the phone 111-11n.

The tone generator 108 generates various tone signals under the control of the controller 100 and transmits them to the switching unit 103.

Telephones 111 through 11n are terminals of extension subscribers.

The control terminal 120 controls the private exchange system as a whole through the control unit 100.

The timer 130 generates a current time data as a clock chip IC and outputs it to the controller 100.

Hereinafter, a method of switching the present invention's telephone call request signal will be described in detail with reference to FIGS. 1 to 3.

First, it is determined whether an incoming call signal for calling with one of the extension subscribers connected to the exchange system is received from the outside (step S100).

Here, the determination may be performed by determining whether or not the incoming call signal is received by the control unit 100 of the exchange system 200 shown in FIG. 2 through a local area network (LAN).

As a result of the determination, when the incoming call signal is received, the corresponding extension subscriber for the call is detected (step S200), and then the incoming call signal is connected to the detected extension subscriber (step S300).

Herein, the operation is performed by any one of the connected telephones 111 to 11n to transmit a signal transmitted from the switching unit 103 for switching the call path between the trunk line connecting unit 102 and the subscriber connecting unit 106 under the control of the control unit 100. By sending

In addition, when the incoming call signal is received, the related information is transmitted from the exchange system 200 to the server 201 running the server computer communication application through a CTI (Computer Telephony Integration) link. It is transmitted to the computer 221 in one-to-one correspondence with the telephone 211, and the client computer communication application of the computer 221 displays information on the incoming call.

The control unit 100 determines whether to switch the incoming call signal being connected to the corresponding extension subscriber to one of the extension subscribers (S400).

It selects the incoming call from the client computer communication application of the computer 221, selects the desired place, and when the switch button is input, a "switch in call" message is transmitted to the server 201 through the local area network and the server computer The communication application is to send a "Call in Call" message to the exchange system 200 via a Computer Telephony Integration (CTI) link.

As a result of the determination, when the incoming call signal is switched, one of the extension subscribers is selected (step S500), and the incoming call signal is switched (step S600).

That is, when the exchange system 200 receives the message " diversion of incoming call ", it disconnects the incoming call to the extension telephone 211 and transfers the call to a place entered or selected by the client computer communication application of the computer 221.

Although the preferred embodiments of the present invention have been described in detail above, those skilled in the art will appreciate that the present invention may be modified without departing from the spirit and scope of the invention as defined in the appended claims. It will be appreciated that modifications or variations may be made. Therefore, changes in the future embodiments of the present invention will not be able to escape the technology of the present invention.

As described above, according to the present invention, when the incoming call is diverted, it is possible to switch directly without a call through a computer communication application, so that other extension subscribers who can answer a call when several calls are being received at the same time There is an advantage that can be transferred to the call.

In addition, it can be effectively used when an extension subscriber makes an important call and cannot receive an incoming call or is an operator who handles multiple calls.

Claims (1)

Determining whether an incoming call signal for calling with one of the extension subscribers connected to the exchange system has been received from the outside; As a result of the determination, when the incoming call signal is received, connecting the incoming call signal to a corresponding extension subscriber for the call; Determining whether to convert an incoming call signal connected to the corresponding extension to one of the extension subscribers; And And when the incoming call signal is switched, selecting one of the extension subscribers and then switching the incoming call signal.

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