KR100279819B1 - Speed Dial Method Including Dial After Initiation of Call in Switching System - Google Patents

Abstract

The present invention discloses a speed dial method including a dial after the start of a call in an exchange system. This invention focuses on the fact that subscribers have unique calling telephone numbers and frequently dial service systems that support multiple services. A speed dial method of an exchange system according to the present invention, when a telephone number and a service number for calling the service system are input from a subscriber, together with the shortcode that the subscriber also inputs the input calling telephone number and service number. A first process of storing, a second process of dialing the calling telephone number when the shortcut code is input with a speed dial request from the subscriber, and the service when a call path is formed after the second process is performed. The third step is to dial the number.

Description

Speed Dial Method Including Dial After Initiation of Call in Switching System

The present invention relates to a dialing method of an exchange system, and more particularly to a speed dialing method including a dial after the start of a call.

In general, various telephones, such as general telephones, key phone telephones, etc., are connected to the switching system as subscriber telephones. The switching system typically provides a landline call or an extension call service to a subscriber telephone housed therein. In addition to these typical services, the exchange system handles subscribers using their own telephones to provide various convenient services related to calls. For example, the switching system includes a redial function, a speed dial function, and the like. By using these functions, subscribers are provided with convenience.

The speed dial function provided by the exchange system allows the other party's telephone number to be dialed if a short code is entered even if the subscriber does not press the telephone number of the other party. This operation is performed when the subscriber enters the other party's telephone number to be called with a short code, and the main device of the switching system stores the input telephone number together with the short code. Then, when the subscriber presses the stored shortcut code, the claim value of the exchange system reads the telephone number stored with the shortcut code and dials it automatically.

On the other hand, with the development of communication technology, the exchange system is being developed in the form of providing various convenient services to subscribers. Voice Mailing System (VMS), Automatic Response System (ARS), Paging System, etc. are systems designed to provide subscribers with more convenient services while using a telephone. However, in order to use these systems, subscribers must first enter a phone number to call the system so that they can be dialed, and then enter a service number to receive service from the system after the call is initiated. You can get services.

Even when calling the above systems, the subscriber can dial the desired system more conveniently through the speed dial function. However, there is a limit that a speed dial function cannot be used for a service number inputted by a subscriber after a call is started.

Accordingly, an object of the present invention is to provide a method for dialing a service number as well as a telephone number for a call in an exchange system through a speed dial function.

Another object of the present invention is to provide a method for enabling speed dialing not only for a dial before a call is started but also for a dial after a call is started in an exchange system.

The present invention for achieving these objectives focuses on the fact that subscribers have unique calling telephone numbers and frequently dial service systems that support multiple services.

A speed dial method of an exchange system according to the present invention, when a telephone number and a service number for calling the service system are input from a subscriber, together with the shortcode that the subscriber also inputs the input calling telephone number and service number. A first process of storing, a second process of dialing the calling telephone number when the shortcut code is input with a speed dial request from the subscriber, and the service when a call path is formed after the second process is performed. The third step is to dial the number.

1 is a view showing the configuration of a general exchange system to which the present invention is applied.

2 is a diagram illustrating a processing flow of a speed dial input mode according to the present invention;

Figure 3 shows the flow of the speed dialing according to the present invention.

4A to 4F are diagrams showing examples of dial numbers input from a subscriber when the speed dial input mode shown in FIG. 2 is operated.

FIG. 5 is a view showing an example of storing a dial number input in the form as shown in FIGS. 4A to 4F;

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the subscriber or the chip designer, and the definitions should be made based on the contents throughout the present specification.

First, it will be appreciated that the speed dial operation according to the present invention is handled by an exchange system configured as shown in FIG.

In FIG. 1, the controller 100 controls the overall operation of the system such as controlling call switching and providing various services to a subscriber. Read only memory (ROM) 102 and random access memory (RAM) 103 store programs and initial service data of the controller 100 for performing basic calls and various functions, and are processed by the controller 100. Temporarily save the data. That is, the ROM 102 stores program and service data, and the ROM 103 temporarily stores data generated while executing a program. The timer 104 generates time data according to a value set by the controller 100 and outputs the time data to the controller 100. The switching circuit 106 switches various tones and voice data under the control of the controller 100.

The general subscriber circuit 108 supplies a call current to the general telephones A, B, C, D under the control of the control unit 100, and interfaces the signals between the general telephones A, B, C, D and the switching circuit 106. The ring generator 110 generates a ring signal and supplies the ring signal to the subscriber line. The key phone subscriber circuit 112 transmits and receives various data to and from the key phone telephones E, F, G, and H under the control of the control unit 100, and supplies a call current, between the key phone telephones E, F, G, H and the switching circuit 106. Interface the signal. Here, the key phone telephones (E, F, G, H) and the general telephones (A, B, C, D) become extension subscribers. The line connecting the general subscriber circuit 108 and the key subscriber subscriber circuit 112 to the extension subscriber becomes a subscriber line.

The tone generator 114 generates various tone signals under the control of the controller 100 and outputs them to the switching circuit 106. The trunk line circuit 116 forms a trunk line call loop under a control of the central office line under the control of the controller 100, and interfaces signals between the trunk line and the switching circuit 106. Here, the CO line means the line connecting the CO line 116 and the Central Office (C.O.).

The dual tone multi frequency (DTMF) receiver 118 analyzes the DTMF signal input from the switching circuit 106, converts the DTMF signal into digital data, and outputs the digital data to the controller 100. Here, the DTMF signal received by the DTMF receiver 118 through the switching circuit 106 may be a telephone number generated by an external subscriber through a trunk line or a telephone number generated by an extension subscriber. The DTMF transmitter (generator) 120 converts the digital data output from the control unit 100 into a DTMF signal and outputs it to the switching circuit 106.

Components described in FIG. 1 are components that can be found in a general exchange system. However, the ROM 102 stores a program according to the processing flow as shown in FIGS. 2 and 3. In addition, the control unit 100 reads the program stored in the ROM 102 and performs a process accordingly so that the call phone number and service number for the speed dial are stored in the speed dial table provided in the RAM 103 as shown in FIG. 5. After that, when the speed dial function is selected later, the calling phone number and the service number stored in the speed dial table are dialed.

2 is a view showing a processing flow of a speed dial input mode according to the present invention, through which the numbers for speed dials are stored in the dial buffer of RAM 103. Here, the number for the speed dial has a unique telephone number, and is a telephone number for calling a service system such as a paging system providing a plurality of services, ARS, VMS, and a service number required by the subscriber. The calling telephone number is a telephone number entered by the subscriber before the call path with the service system is formed. In contrast, the service number may be a series of service numbers that are entered by the subscriber after the call-route with the service system is formed.

Now, if the subscriber hooks off (hook off), the control unit 100 of FIG. 1 checks this in step 201 and then controls the tone generator 114 in step 202 to transmit a dial tone. In response to the dial tone being transmitted, when the subscriber inputs a speed dial function key to input a number for a speed dial, the control unit 100 checks this in step 203 and performs the speed dial function. In contrast, when it is determined in step 203 that the speed dial function key is not input, the subscriber requests another function, and thus, the controller 100 performs another function requested by the subscriber in step 204.

When the subscriber inputs a shortcut code to replace the dial number in the state in which the speed dial function is executed, the controller 100 stores the input shortcut code on the speed dial table of the RAM 103 in step 206. In addition, when the subscriber inputs a shortcut code and then inputs a dial number corresponding to the shortcut code, the controller 100 determines this in step 207 and stores the entered dial number on the speed dial table of the RAM 103 in step 208. . After storing the input dial number, the controller 10 controls the tone generator 114 to transmit a confirmation tone to the subscriber. Herein, the confirmation sound is sent out means that one dial number has been stored. Initially, a telephone number for calling a service system is stored as a dial number.

The confirmation tone is transmitted in step 209 means that a number for one speed dial is stored. After confirming the transmitted confirmation tone, the subscriber inputs a speed dial function key and inputs a service number for another speed dial. Can be stored as a number for a speed dial. The operation of storing the service number as a speed dial number is performed in the same manner through steps 207 to 209 described above. When the subscriber hooks up the phone after all the numbers for the speed dial are input, the controller 100 checks this in step 211 and ends the operation of the speed dial input mode.

4A to 4F are diagrams illustrating an example in which a subscriber inputs a shortcut code and inputs a calling phone number and a series of service numbers as shortcut dial numbers. The example at this time shows the dial number entered by the subscriber to call the paging system and to receive service from the paging system. "012-345-6789" in Fig. 4B is a number for calling the paging system. The first service number "1" of FIG. 4D is a number indicating that the paging system provides the calling service when the subscriber calls the paging system. The first service number may be "2", "4", "5", etc., "2" is a number indicating that the paging system provides a recording service, "4" is a paging system for the club service. "5" is a number indicating that the paging system provides a reserved call service. The second service number " 999-1234 " in FIG. 4F can be the phone number of the subscriber, which will be left when the subscriber receives the call service from the paging system. Each of the series of service numbers can be distinguished by the subscriber entering the speed dial function key " K ". And the abbreviated code "7" of FIG. 4A is a shortened number of the calling telephone number, the first service number and the second service number.

When the subscriber inputs a short code, a calling phone number and a series of service numbers according to the same procedure as in FIGS. 4A to 4F, the control unit 100 inputs the short code, the calling phone number and the serial number entered on the speed dial table of the RAM 103. Store the service number. On the speed dial table of the RAM 103, a speed code, a calling phone number, and a series of service numbers may be stored in the form shown in FIG. 5.

Referring to Fig. 5, a shortcut code is stored as "7", and a dialing number corresponding to the shortcut code is a telephone number of "0123456789", a first service number of "1", and a number of "9991234". 2 You can see that the service number is stored. At this time, the first service number and the second service number can be distinguished by storing a function key "K" in front of the number.

3 is a flowchart illustrating a process of performing speed dialing in a state in which speed dial numbers are stored according to the process flow shown in FIG. 2.

Operations of steps 301 to 305 of FIG. 3 are performed in the same manner as operations of steps 201 to 205 of FIG. 2. When a shortcut code is input from the subscriber in step 305, the controller 100 reads the contents of the speed dial table of the RAM 103 to determine whether a dial number corresponding to the input shortcut code is stored in step 306. In this case, if it is determined that the dial number corresponding to the shortcut code is not stored, the process proceeds to step 307 to perform the operation of the shortcut dial input mode. More specifically, the operation of step 206 of FIG. 2 will be performed as the initial operation of step 307, and the operations of steps 207 to 211 will be performed after that.

On the other hand, if it is determined in step 306 that the dial number corresponding to the shortcut code input in step 305 is stored, the control unit 100 reads the calling telephone number "012-345-6789" from the speed dial table of the RAM 103 in step 308. Control the DTMF transmitter 120 to dial this retrieved calling telephone number. As the calling telephone number is dialed, a call path is formed between the switching system that accepts the calling party and the called paging system. At this time, a currency path between the exchange system and the paging system is formed through the trunk line.

If it is determined in step 309 that the call path between the switching system and the paging system is formed, the subscriber is provided with a voice announcement message from the paging system. For example, the paging system provides voice prompts such as call 1, record 2, club service 4, and reservation 5. When the subscriber inputs the function key "K" while the voice guidance message is provided, the controller 100 determines that the function key "K" is input in step 310, and is stored in the speed dial table of the RAM 103 in step 311. First service number " 1 " and dial the first service number using DTMF transmitter 120. When the first service number is dialed, the paging system responds in response to providing a voice prompt, such as "Call the phone number to be contacted and then press the star." When the subscriber presses the function key "K" while the voice announcement message is provided in this way, the control unit 100 reads the second service number "999-1234" stored in the speed dial table of the RAM 103 in step 311, and the DTMF. Dial this read second service number using transmitter 120.

By performing the operations of steps 310 and 311 in this manner, the speed dialing operation of the stored dial number is terminated as shown in FIG. 5. In this state, when the subscriber hooks on the telephone, the controller 100 determines this in step 312 and ends the speed dialing operation.

If the function key is provided with a light emitting diode (LED) in the above, it is indicated whether there is a transmission history for the next speed dialing so that a series of processes are in progress.

As described above, the present invention focuses on the fact that subscribers frequently use a service system that provides a plurality of services, such as a paging system, so that service numbers after the call path between the switching system and the paging system are formed can also be dialed. After being included as a number for speed dialing. Since the present invention provides a speed dialing method that considers the usage of subscribers in more detail, there is an advantage that the subscribers can more conveniently use the speed dial function of the phone.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. For example, in the detailed description of the present invention, the present invention has been limited to the case where a subscriber calls a paging system. However, the present invention can be equally applied to service systems such as ARS and VMS. In addition, although the case has been described using two service numbers as an example, such service numbers may be extended. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (2)

In a short dial method of an exchange system having a unique telephone number and connected to a service system that provides a service according to a request from a calling party among a plurality of services when called, A first step of storing, when a telephone number and a service number for calling the service system are input from the subscriber, the input calling telephone number and the service number together with a short code also inputted by the subscriber; A second step of dialing the calling telephone number when the shortcut code is input together with a shortcut dial request from the subscriber; And a third process of dialing the service number when a call path is formed after the second process is performed. In a speed dial method of a switching system having a unique telephone number and connected to a service system which, when called, is connected to a service system which provides a service according to a request from a calling party among a plurality of services: When a speed dial function key and a speed code are input from a subscriber, when a telephone number and a series of service numbers for calling the service system are input, the call phone number and the series of service numbers are separately stored together with the speed code. The first process A second step of dialing the calling telephone number when the shortcut code is input from the subscriber together with the shortcut dial function key; A third process of forming a communication path between the service system and the exchange system after performing the second process; A fourth process of dialing a first service number of the series of service numbers when the speed dial function key is input while the call path is formed; And a fifth process of dialing a next service number whenever the speed dial function key is input after the fourth process.