KR100248103B1 - Method for switchover of receiving-call in simplicity private branch exchange system - Google Patents

Abstract

The present invention relates to a call forwarding method in a simple switching system, and in particular, when an extension subscriber stores incoming call switching information (a specific caller's telephone number and a destination telephone number) in a simple switching system, an incoming call to the corresponding extension is performed. The present invention relates to an incoming call switching method in a simple switching system for providing an incoming call switching service by selecting only an incoming call signal included in a specific caller's telephone number.

In the conventional simple switching system, the extension subscriber should set up the incoming call switching function in order to automatically switch the incoming signal for the corresponding station. In this case, the simple switching system sets all the incoming signals for the extension to the extension set by the extension subscriber. There was a problem that the efficiency of use of the destination telephone is reduced by switching to the service, and the work efficiency of the extension subscriber is reduced.

The present invention stores the call forwarding information (specific caller's phone number, called party's phone number) of the extension subscriber in the simple switching system, and when the incoming call is received at the extension, the specific caller's phone number based on the call forwarding information. Only the incoming signal included in is converted into the corresponding destination telephone number, thereby improving the use efficiency of the destination telephone and improving the work efficiency of the corresponding extension subscriber.

Description

Call forwarding method in simple switching system

The present invention relates to a call forwarding method in a simple switching system, and in particular, when an extension subscriber stores incoming call switching information (a specific caller's telephone number and a destination telephone number) in a simple switching system, an incoming call to the corresponding extension is performed. The present invention relates to an incoming call switching method in a simple switching system for providing an incoming call switching service by selecting only an incoming call signal included in a specific caller's telephone number.

In general, the role of the simple switching system detects an incoming signal transmitted through a trunk line or a dedicated line and connects an extension subscriber and a call path corresponding to the incoming signal to enable a call between the two parties, or according to the instructions of the extension subscriber. By connecting the call path between extension subscribers, the call is possible, and when the call is terminated, the call subscriber is disconnected to make the extension subscriber available for the next communication.

On the other hand, in the conventional simple switching system, when an extension subscriber is absent, when an incoming signal occurs to the corresponding station, another person around the station answers instead, and then hooks the hook switch of the telephone (lightly presses the hook switch for a short time). The call was transferred to the extension telephone at the place where the corresponding subscriber is. However, in such a case, if there is no person to respond in place of an incoming signal generated in the corresponding station, or the place where the corresponding subscriber is located, the incoming call could not be switched.

In addition, in the conventional simple switching system, when an extension subscriber sets up an incoming call switching function, all incoming signals generated on the extension are switched to the extension set by the extension subscriber, thus making an unnecessary call. The use efficiency of the phone became a deterioration factor and could damage the extension subscribers of the destination.

In the conventional simple switching system as described above, in order for the subscriber to automatically switch the incoming signal for the corresponding station, the incoming call switching function should be set. In such a case, the simple switching system transmits all incoming signals for the extension. There was a problem that the efficiency of use of the destination telephone is reduced by switching to the extension set by the subscriber, and the work efficiency of the extension subscriber is reduced.

The present invention has been made to solve the above-mentioned problems, and its object is that, when the extension subscriber sets the call forwarding information (specific caller's phone number and destination phone number) and stores it in the simplified switching system, the call forwarding is switched. Based on the information, only the incoming signal including the calling party number included in the specific calling party number is selected and converted to the called party number corresponding to the calling party number, thereby improving the efficiency of the destination telephone. At the same time, to improve the work efficiency of the corresponding subscriber.

Features of the present invention for achieving the above object, the first process of storing the incoming call switching information input from the station subscriber; And a second process of performing an incoming call switching operation based on the incoming call switching information when the incoming signal for the extension subscriber is received.

In the first step, the call forwarding information includes a specific caller's telephone number and a called party's telephone number.

Meanwhile, the first process includes a first step of receiving a specific button from an extension subscriber; A second step of storing a destination telephone number authorized from the extension subscriber; And a third step of storing a specific caller's telephone number authorized from the extension subscriber.

In addition, the second process may include a first step of determining whether the incoming call switching information is the incoming call to the stored extension when an incoming signal including the caller's telephone number is received; A second step of determining whether the caller's telephone number is included in a specific caller's telephone number when the incoming call transfer information is stored in the first extension in the first stage; A third step of extracting a destination telephone number corresponding to the specific caller telephone number and transmitting a call signal to an extension corresponding to the destination telephone number if it is included in the specific calling party telephone number in the second step; And after the third step, if a response signal is received through the corresponding extension, connecting the corresponding extension to the call path to allow the extension subscriber to make a call, and then disconnecting the call path when the call ends. do.

1 is a block diagram of a simple exchange system according to the present invention.

2 is a flowchart illustrating incoming call switching information input in a simplified exchange system according to the present invention.

3 is a flowchart illustrating processing of an incoming call to an extension subscriber according to the present invention.

Explanation of symbols on the main parts of the drawings

11: trunk line interface unit 12: call path switching unit

13: station interface unit 14: central control unit

15: data storage

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

As shown in FIG. 1, the simplified exchange system (SPBX) according to the present invention includes a trunk line interface unit 11, a call path switching unit 12, an extension interface unit 13, a central control unit 14, and data storage. The part 15 is provided.

The trunk line interface unit 11 connects the trunk line to match signals inputted and outputted to the trunk line, and the call path switching unit 12 performs a call path switching operation under the control of the central controller 14. The station interface unit 13 connects the station to match the signals input and output to the station. The central controller 14 controls the operation of the entire system, such as monitoring a call made in a simple switching system (SPBX), controlling a call path connection, and controlling the data storage unit 15 to receive incoming call switching information input from an extension subscriber. And stores the incoming call to the corresponding extension subscriber based on the incoming call switching information. The data storage unit 15 stores the incoming call switching information under the control of the central control unit 14, and the destination telephone number input from the extension subscriber (the telephone number of the destination extension to which the incoming signal generated at the extension is switched). ) And a specific caller's phone number (caller's phone number to be converted to caller's phone number), and basic caller's phone number for forwarding incoming signal including caller's phone number not included in specific caller's phone number. .

In the simple switching system (SPBX) of the present invention configured as described above, an operation of switching an incoming call of an extension subscriber is as follows.

First, the operation of storing the call forwarding information of the extension subscriber in the simplified switching system (SPBX) is performed in the order shown in FIG.

After the extension subscriber off-hooks the handset, the operator switches the telephone keypad and inputs a specific button for inputting call forwarding information (specific caller's telephone number and destination telephone number) (step S11). ), The central control unit 14 is ready to accept incoming call switching information (step S12). At this time, when the extension subscriber operates the keypad and inputs the destination telephone number which is the telephone number of the destination extension to which the incoming signal for the extension is switched (step S13), the destination telephone number is sent to the central control unit 14. Is detected and stored in the data storage unit 15 for each extension number (step S14). After step S14, if a specific caller's telephone number which is the caller's telephone number to be switched to the corresponding destination telephone number is input (step S15), the specific caller's telephone number is detected by the central control unit 14 and the data storage unit 15 is entered. Is stored in the corresponding extension number area (step S16). After step S16, the central control unit 14 judges whether there is further input of a specific button for inputting incoming call switching information from the extension subscriber (step S17), and if there is further input of the specific button, it returns to the step S12 and repeats. The operation is performed, and if there is no input of a specific button, the operation is terminated.

On the other hand, the simple switching system (SPBX) performs the processing of the incoming call to the extension subscriber in the order shown in FIG.

When the incoming signal including the calling party number is received from the local switching system via the trunk line (SPBX) (step S21), the incoming call is stored with the incoming call switching information (specific calling party number, called party number). It is determined whether the incoming signal is received for the extension (step S22). If the incoming call forwarding information is the incoming signal for the stored extension in step S22, the central control unit 14 draws out a specific caller's telephone number corresponding to the extension from the incoming call forwarding information stored in the data storage unit 15 (step S23). In step S24, it is determined whether the received caller phone number is included in the specific caller phone number withdrawn. If the calling party telephone number received in step S24 is included in the specific calling party telephone number, the central control unit 14 withdraws the destination telephone number corresponding to the specific calling party telephone number from the data storage unit 15 (step S25). ), The call signal is transmitted through the extension corresponding to the destination telephone number (step S26). After step S26, when a response signal is received through the corresponding station (step S27), the central control unit 14 controls the call path switching unit 13 to connect the call path of the corresponding station so that the extension subscriber can make a call. (Step S28) When the call ends, the central control unit 14 controls the call path switching unit 13 to cut the corresponding call path (step S29), and then ends the operation. On the other hand, if the incoming call switching information is not an incoming signal for the extension in which the incoming call switching information is stored, the call signal is transmitted through the extension corresponding to the incoming signal (step S30), and the operation of step S27 is performed. In addition, when the calling party telephone number received in step S24 is not included in the specific calling party telephone number, the central controller 14 withdraws the basic destination telephone number corresponding to the extension from the data storage unit 15 (step S31). ), The call signal is transmitted through the extension corresponding to the corresponding basic destination telephone number (step S32), and the operation of step S27 is performed.

As described above, the present invention stores the call forwarding information (specific caller phone number, destination phone number) of the extension subscriber in the simple switching system, and when the incoming call is received on the extension based on the call forwarding information Since only the incoming signal included in a specific caller's phone number is converted to the corresponding destination phone number, the use efficiency of the destination phone can be improved and the work efficiency of the corresponding extension subscriber can be improved.

Claims (4)

A first step of storing incoming call forwarding information input from an extension subscriber; And a second process of performing an incoming call switching operation based on the incoming call switching information when the incoming signal for the extension subscriber is received. 2. The method of claim 1, wherein the call forwarding information comprises a specific caller's telephone number and a destination telephone number. The method of claim 1, wherein the first process comprises: a first step of receiving a specific button from an extension subscriber; A second step of storing a destination telephone number authorized from the extension subscriber; And a third step of storing a specific caller's telephone number authorized from the extension subscriber. 2. The method of claim 1, wherein the second process comprises: a first step of determining whether the incoming call switching information is an incoming call to a stored extension when an incoming signal including a caller's telephone number is received; A second step of determining whether the caller's telephone number is included in a specific caller's telephone number when the incoming call transfer information is stored in the first extension in the first stage; A third step of extracting a destination telephone number corresponding to the specific caller telephone number and transmitting a call signal to an extension corresponding to the destination telephone number if it is included in the specific calling party telephone number in the second step; And after the third step, if a response signal is received through the corresponding extension, connecting the corresponding extension to the call path to allow the extension subscriber to make a call, and then disconnecting the call path when the call ends. A method of switching incoming calls in a simple switching system.

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