KR100464488B1 - method for directly calling a rocal-line of the semi-switching system - Google Patents

Abstract

The CID information storage step of storing the CID information of the other party for each extension users requesting direct connection to their extension number in a database and storing the CID information currently input after the CID information storage step. A CID database search step that searches for information that matches the database and tracks the corresponding extension number, and an extension that connects the caller's communication signal immediately by assigning a channel to the corresponding extension number searched after this CID database search step. It provides a direct extension method of a simple exchange system consisting of a direct connection step.

In the present invention as described above, by using the caller's CID information provided from the telephone exchange, the caller waits for the telephone exchange by searching the CID storage database previously stored by the extension user and directly connecting the caller to the corresponding extension. Therefore, the user's convenience is greatly increased, and the call connection result is immediately known as soon as the telephone is called, thus reducing communication line loss caused by callers waiting for the telephone exchange.

Description

Method for directly calling a rocal-line of the semi-switching system}

The present invention relates to a direct extension calling method of a simple switchgear system. In particular, a CID storage database, which is stored by a station user in advance, is searched using a caller's CID information provided from a telephone exchange, and the caller is directly connected to the corresponding extension. The present invention relates to a direct calling method of a simple exchange system, which greatly increases the user's convenience since the caller does not have to wait for the telephone exchange.

In general, as the industrial society develops, information communication systems are widely used to transfer data from one point to another desired more appropriately and quickly. Such communication systems are usually homogeneous or heterogeneous communication devices which are geographically dispersed. In most cases, information devices are connected to a network to enable sharing and communication of resources. In the network, a switch is usually used to exchange information converted into an electrical signal with a counterpart, and is divided into a subscriber transmission connecting a subscriber and an exchange and a transmission between stations connecting an exchange period.

In particular, various types of systems are currently developed and used in the exchange system for subscriber transmission in terms of large facility capacity, and a simple exchange system for a building or a small subscriber among such exchanges is now widely used.

Then, the conventional simple switch system as described above, for example, a keep-phone, has a signal interface unit 72 for detecting a communication signal transmitted through the transmission line 71 from an external switch 70, and this signal. A ring detect unit 73 for detecting a ring signal input through the interface unit 72, and a call circuit unit for executing a call with a counterpart caller by processing a communication signal input through the signal interface unit 72 in a predetermined signal. A control unit 75 including the call circuit unit 73 to control the overall functions of the extension exchange system to control signal connections between various telephones 74A-N connected to the station and external callers; Key panel unit 76 for inputting a function control signal of the user to the control unit 75 and the LCD panel 77 is connected to one end of the control unit 76 to display the internal functional operation to the outside.

In addition, a handset 78 is connected to one end of the call circuit unit 73.

Meanwhile, referring to the operation of the conventional keep phone as described above, when a call signal is input through an external switch 70, the call signal is transmitted to the signal interface unit 72 of the keep phone 79 through the transmission path 71. Is entered. Then, the signal interface unit 72 inputs the signal interface to the control unit 75, the ring detect unit 73, and the call circuit unit 73, wherein the ring detect unit 73 receives the input external call signal. Ringing the bell 80 by detecting the ring signal is loaded. Then, when the operator hears the ring tone and picks up the handset 78, the call circuit unit 73 processes the voice signal of the other party's caller, which is input through the external transmission path 71, and listens to the handset 78. Therefore, when the operator confirms the extension number of the desired receiver from the other caller and then presses the extension number through the key panel unit 76, the controller 75 recognizes this and allocates a channel to the corresponding extension so that the external caller and the extension user can receive the extension number. A call is made between them. The control unit 75 displays the call state on the LCD panel 77 in letters or numbers through a display control signal.

However, in the conventional simple switching system as described above, for example, the keep phone, when a call signal is input from an external caller, the operator must check the extension number and press the corresponding station. There was a drawback of being very uncomfortable because of the time.

In addition, the conventional simple switch system as described above has a problem in that, even if the extension is connected to the operator's guide, if the user of the extension is absent, the user must wait for a predetermined time without knowing the fact.

Accordingly, the present invention has been invented to solve the above problems, by using the caller's CID information provided from the telephone exchange, search the CID storage database previously stored by the extension user and connects the caller directly to the corresponding extension Since the caller does not need to wait for the telephone exchange, the object of the present invention is to provide a direct calling method of an extension system of the simple switching system, which greatly increases user convenience.

It is still another object of the present invention to provide a direct call method of an extension system of a simple switching system, which can know the call connection result as soon as the telephone is called, thus reducing communication line loss caused by waiting for callers to switch. It is.

In order to achieve the above object, the present invention provides a CID information storage step of storing each of the CID information of each extension user requesting direct connection to their extension number in a database, and storing the external caller after the CID information storage step. CID database search step of searching whether there is matching information in the established CID database and tracking the corresponding extension number of the caller's CID information inputted from outside by a call connection request of the call, and the corresponding extension searched after this CID database search step It provides a direct extension method of an extension system consisting of a direct extension connection step of assigning a channel to a number and immediately connecting a caller's communication signal to make a call.

1 is a block diagram illustrating a conventional keep phone.

2 is an explanatory diagram illustrating a keep phone to which the method of the present invention is applied.

3 is a flowchart of the present invention.

<Detailed Description of Codes>

1: switch 2: transmission line

3: signal interface unit 4: ring detect unit

5: call circuit 6: CID modem

7: memory 8: controller

9: key panel portion 10: LCD panel

11: handset 12: bell

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

As shown in FIG. 2, the keep-phone to which the present invention is applied is a signal interface unit for receiving a call signal including CID information transmitted through a transmission line 2 from a CID data block (not shown) of an external exchange 1. (3), a ring detect unit 4 for detecting a ring signal input through the signal interface unit 3, and a communication signal input through the signal interface unit 3 to process a predetermined signal to counterpart callers. A call circuit section 5 for executing a call with the CID modem 6 for detecting CID information included in the call signal input from the signal interface section 3, and CID information input from the CID modem 6; A controller (8) for searching whether or not it matches with the extension user stored CID information previously stored in the memory (7), controlling the caller to be directly connected to the corresponding station according to the search result, and controlling the overall function of the keep phone system. And a key panel unit 9 for inputting a user's function control signal to the controller 8, and an LCD panel 10 connected to one end of the controller 8 to display the internal functional operation to the outside. Is done.

The handset 11 is connected to one end of the call circuit unit 5. In addition, the memory 7 may be a RAM.

Here, the CID information refers to, for example, CID (Calling Identity Delivery) information that delivers the caller's telephone number, the date / time of the call, and other information. The CID information is usually modulated by a frequency shifting scheme (FSK). It is received after the first ring signal.

Next, a control method applied to the above apparatus will be described.

In the method of the present invention, first, when each extension user stores the counterpart CID information requesting direct connection to his extension number in a memory, the controller recognizes this and executes it as shown in FIG.

That is, the controller 8 of the keepphone 13 proceeds to the CID information storage step S2 in the initial state S1 and stores the counterpart CID information in the memory in which each extension user requests direct connection to his / her extension number. Save it. After the CID information storage step (S2) , the process proceeds to the CID information input determination step (S3) to determine whether the caller's CID information signal is input together with the caller's call connection request from the telephone exchange . At this time, if the CID information is not input as a result of the determination in the CID information input determination step (S3), the process proceeds to the general connection step (S4) to connect the caller to the extension in a general manner.

On the other hand, if the CID information is input as a result of the determination in the CID information input determination step (S3), the process proceeds to the CID database search step (S5) to search whether there is information that matches the currently input CID information in the previously established CID database. And track the extension number. Then, after the CID database search step (S5) proceeds to the extension direct connection step (S6) to allocate a channel to the corresponding extension number retrieved by the step (S5) immediately connects the caller's communication signal to make a call.

Here, during the extension direct connection step (S6), if the currently connected extension user is absent, the missed voice message sending step of transmitting the voice message of the corresponding extension user which has been previously recorded to the other party is further executed.

In other words, when a call signal is input from the external exchange 1 to the signal interface unit 3 while the CID information is stored in the memory 7, the CID data transmission block (not shown) of the external exchange 1 Between the first ring signal and the second ring signal, the caller's CID information, that is, the caller's telephone number, the date / time of the call and other information, is entered. Then, the signal interface unit 3 inputs the signal to the CID modem 6, the ring detect unit 4, and the call circuit unit 5 through the signal interface, wherein the ring detect unit 4 is inputted. The bell 12 is ringed by detecting a ring signal loaded in an external call signal. At the same time as the operation, the CID modem 6 modulates the caller's CID information according to the control signal of the controller 8 by using the FSK method, processes the predetermined signal, and inputs the same to the controller 8. Accordingly, the controller 8 displays the input CID information on the LCD panel 10 and searches whether there is information corresponding to it in the CID database constructed in the memory 7. At this time, if there is no information that matches the currently input CID information, the controller 8 executes the telephone connection in the usual manner.

That is, when the operator hears the ring tone and picks up the handset 11, the call circuit unit 5 processes the voice signal of the other party's caller input through the external transmission path 2 to the handset 11. Therefore, when the operator confirms the extension number of the desired receiver from the other caller and then presses the extension number through the key panel unit 9, the controller 8 recognizes this and allocates a channel to the corresponding extension so that the external caller and the extension user A call is made between them. The controller 8 displays the call state on the LCD panel 10 in letters or numbers through a display control signal.

However, when the controller 8 is in the database of the memory 7 that matches the currently input CID information, the controller 8 reads the corresponding extension number and allocates a channel, and then sends the call signal of the caller to the fixed line telephone 13A- of the extension. Connect directly to N) to make a call.

At this time, if the user of the extension number currently connected is absent, the controller 8 immediately transmits the voice message of the corresponding extension user, which is recorded in advance, to avoid waiting unnecessarily for a call.

As described above, the present invention uses the caller's CID information provided from the telephone exchange to search the CID storage database previously stored by the extension user, and connects the caller directly to the corresponding extension. Since there is no need to wait, the user's convenience is greatly increased accordingly.

In addition, according to the present invention, since the call connection result is known as soon as the telephone is called, there is an effect that the communication line loss caused by the callers waiting for the telephone exchange can be significantly reduced.

Claims (2)

CID information storage step of storing the CID information of each station that the extension users request to connect directly to their extension number in database in memory, and pre-built CID information input after the CID information storage step. A CID database search step of searching in the CID database and tracking the corresponding extension number, and an extension line connection step of making a call by immediately connecting a caller's communication signal by allocating a channel to the corresponding extension number searched after the CID database search step. Direct extension method of the simple exchange system, characterized in that made. The method of claim 1, further comprising the step of transmitting a missed voice message for transmitting the voice message of the corresponding extension user to the counterpart caller immediately when the currently connected extension user is absent during the extension. Direct call method of simple exchange system.