KR100233461B1 - Method for paging a calling fact by using automated attendant in exchange system - Google Patents

Abstract

The present invention discloses a method of automatically guiding and broadcasting a fact that an extension subscriber is called by using an automatic switching device (AA) in a switching system. The present invention stores the telephone number of the extension and the corresponding subscriber's name in a memory in the AA as a voice and when the called extension does not respond when the call is received from the trunk line, the called party does not respond. The name of the extension is broadcasted by voice to the group to which the extension belongs. Called extension subscribers who leave their seats from these announcements will know that they have received a call. In addition, when the called extension is absent, the missed announcement message is provided to the caller so that the caller can leave a desired message.

Description

Call announcement broadcasting method using automatic switching device in exchange system

The present invention relates to a guide broadcasting method using an automatic switching device in an exchange system, and more particularly, to a method of automatically guiding broadcasting using an automatic switching device that an extension subscriber is called.

Switching systems, such as Private Automatic Branch eXchange (PABX) or Key Phone System, typically provide incoming and outgoing services to extension subscribers. In addition to these typical services, the exchange system provides a variety of services that allow subscribers or external callers to feel more convenient during or during a call.

For example, the exchange system provides a function of guiding an announcement to an already recorded voice when an external caller makes a call or automatically converting the external caller to a representative. This service is supported by the provision of an Automated Attendant (hereinafter referred to as "AA") as a service device inside the exchange system. An example of the AA has already been proposed under Korean Patent Application No. 95-43980, entitled “Automatic Switching Device and Method of Exchanger,” filed by the applicant of November 27, 1995. Inside the AA, a memory for recording voice is included.

On the other hand, when the incoming call is generated from the CO line, the exchange system including AA detects the CO line and outputs the guide voice message stored in the AA to the called CO line through the switching circuit. Accordingly, the external callers may listen to the guide voice message and be provided with various convenient voice services. Alternatively, the external callers may directly call the extension subscriber without passing through the representative by pressing the number of the extension subscriber. However, if an extension is absent or seated when an external caller calls a particular subscriber, the ring will continue to ring on the called party but the external caller must wait for the call without knowing that. You will not be able to talk and will hang up. Of course, the fact that the called extension is absent or not seated may be notified by connecting the voice mailing system to the exchange system and guiding the missed announcement message to the external caller. However, the provision of such a voice mail device is a huge burden from the economic point of view.

In addition, even if the called extension is seated, the calling party can transfer the call to the representative by using the AA of the exchange system, so that the external caller can make a call with the called extension. Could be However, this process requires a representative to broadcast directly after receiving a call to inform the called subscriber that there is a call, which is a great burden for the selected subscriber. This burden is especially evident if the representative is a person with heavy work. In addition, since such a process takes a lot of time, the external caller has to wait a lot of time.

Accordingly, an object of the present invention is to provide a method for voice announcement of the fact that an extension subscriber is called using AA in an exchange system.

Another object of the present invention is to provide a method of eliminating the inconvenience that a station subscriber selected as the representative of AA in an exchange system has to experience when broadcasting the fact that the called subscriber is called.

It is another object of the present invention to provide a method of eliminating the inconvenience of having to wait a lot of time until an external caller calls a called extension in a switching system.

It is still another object of the present invention to provide a method for more economically implementing an apparatus for guiding the fact that a called extension is absent in the exchange system.

In order to achieve the above objects, the present invention stores a telephone number of a subscriber and its corresponding subscriber's name in a memory in AA by voice, and when a call is received from a trunk line, the called extension does not respond. If not, the name of the called extension is broadcasted by voice to the group to which the extension belongs. Called extension subscribers who leave their seats from these announcements will know that they have received a call. In addition, when the called extension is absent, the missed announcement message is provided to the caller so that the caller can leave a desired message.

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

2 is a view showing a subscriber table according to the present invention stored in a memory included in the automatic switching device AA shown in FIG.

Figure 3 is a view showing the processing flow of the automatic switching device recording mode according to the present invention.

4A and 4B are views illustrating a processing flow of a voice announcement service operation according to the present invention.

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 user or chip designer, and the definitions should be made based on the contents throughout the present specification.

First, it is to be noted that the present invention is carried out in an exchange system 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 during program execution. 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. 3 and 4. And AA 122 is provided inside the exchange system for the operation of the voice announcement broadcast according to the present invention. Such AA is usually provided in the form of a card and a board. The inside of the AA 122 is provided with a memory capable of storing a voice as described above, and as shown in FIG. 2, the name of the subscriber that corresponds to the telephone number (extension number) of the subscriber is voiced. Will be saved. At this time, the telephone number and name of the extension subscriber are stored in a group of small groups and whole groups. In addition, the memory stores a greeting guide message for the initial operation of the automatic switching, a busy guide message indicating that the called extension is busy, and a missed guide message indicating that the called extension is absent. In addition, the memory stores a message for leaving a voice message to the caller together with the missed announcement message.

FIG. 2 is a diagram illustrating an example of a subscriber table stored in a memory provided in AA 122, and it can be seen that the telephone number and name of an extension subscriber are stored in a small group unit and an entire group unit as described above. . Here, as an example, the telephone number of an extension subscriber is 2001-2030, and three extension subscribers form one small group so that one whole group is composed of 10 small groups.

FIG. 3 is a view illustrating a processing flow of an AA recording mode for configuring a subscriber table as shown in FIG. 2. The configuration of such a subscriber table may be made through one representative key phone of an exchange system, and each subscriber's key phone. It can also be done through. In any case, subscribers must enter each subscriber's name by voice in the extension number they have using AA 122. In addition, in order to configure the subscriber table, AA 122 should include a program module that can store names for each subscriber number.

When the subscriber selects the recording mode of AA 122, the control unit 100 of FIG. 1 determines this in step 301, and then in step 303, the message " Enter the number of the subscriber extension " is displayed on the LCD (Liquid Crystal Display) of the subscriber's phone. Mark it. In this case, when the subscriber inputs the telephone number, the controller 100 determines this in step 304 and stores the input telephone number in the memory of AA 122 as the extension subscriber's number in step 305. Next, since the name of the extension corresponding to the entered extension subscriber's number is required, the control unit 100 displays a message " Please enter the subscriber name " on the LCD of the subscriber's phone in step 306. From this, when the subscriber inputs his or her name as a voice, the controller 100 determines this in step 307 and stores the subscriber name of the input voice as a voice corresponding to the stored number of the extension subscribers.

When the name of each extension subscriber is stored in AA 122, as shown in FIG. 2, a subscriber table in which the name of each extension number is input is generated. Although not shown in the flow of FIG. 3, after the above operation is performed, a small group and a whole group of each subscriber number are determined by a program again.

4A and 4B are diagrams illustrating a processing flow of a voice announcement service operation according to the present invention, which is performed as a call is received from a trunk line.

Now, when a call is drawn from the trunk line through the trunk line circuit 116 of FIG. 1, the controller 100 determines this in step 401 of FIG. 4A and provides a voice automatic response guide of AA 122 to the trunk line into which the call is drawn through the switching circuit 106. As the step 402 is performed, the external caller will hear a personnel guidance message from the AA 122 that the subscriber wishes to call enters the extension number. In this case, since the external caller may not know the extension number, in this case, AA 122 may voice the extension number and the name of the extension subscriber in sequence.

When the external caller inputs an extension number to call, the control unit 100 detects the key input using the DTMF receiver 118, and transmits a ring to the corresponding subscriber by using the ring generator 110 in step 405. If it is determined in step 406 that the called extension that the external caller wants to call is busy, the control unit 100 guides the busy guide message to the external caller in step 407 and asks whether to wait for the called extension. see. At this time, when the caller requests to wait for the call termination of the called extension, the control unit 100 returns to step 406 whenever it is determined in step 409 that the fourth set time has elapsed, and whether or not the called extension is busy. To judge. On the other hand, if the caller does not request to wait for termination of the called extension, the controller 100 proceeds to step 420 of FIG. 4B and asks whether to leave a message.

If it is determined in step 406 that the called extension is not in a call, the control unit 100 waits until it is determined in step 410 that the first predetermined time (time according to a predetermined time or a certain number of rings) elapses and then in step 411. It is determined whether the called extension answers the call in response to the sent ring. If the called extension does not answer until the first predetermined time elapses, the controller 100 searches for the name of the called extension from the subscriber table shown in FIG. Announces the name searched to a small group by voice. In this case, if the called extension subscriber who is Lee, Suk-Joe is in a small group, he / she can easily know that he / she has been called from his / her name broadcasted in step 413. From this, he will be able to talk to an external caller. .

Even if the called extension is not broadcasted in the small group to which the subscriber belongs, if there is no response until the second preset time elapses in step 414, the controller 100 displays the name of the called extension in step 416. FIG. The announcement is made to the whole group again. If there is no response to the entire group announcement until it is determined in step 417 that the third set time has elapsed, the controller 100 determines that the called extension is absent, and in step 419, the missed announcement message is sent to the external caller. Perform the sending operation. After performing step 419, the controller 100 asks the external caller whether there is a voice message to leave to the called subscriber in step 420. In this case, when the external caller leaves a voice message, the controller 100 records the input voice message in AA 122 and terminates in step 422.

On the other hand, if the called extension receives a call after receiving the announcement that the called extension has received the call while performing the above operation, the control unit 100 causes the call between the external caller and the called extension to be made in step 423. In addition, if it is determined in step 424 that the external caller requests a call transfer during the call operation, the control unit 100 returns to step 403 and repeats the above-described operation. The external caller may thus speak with the called extension and with another extension.

As described above, the present invention automatically broadcasts a voice announcement to a called subscriber by using AA when a call is received from a CO line (outside). Therefore, the present invention has an advantage in that the called extension can easily receive a call at another place in the group to which he / she is seated. The present invention also sends an out-of-office guide message indicating this to an external caller even when the called extension is absent. Since the transmission function of the missed guidance message is also implemented by using AA, there is an advantage that the function is implemented by a more economical device than when using a conventional VMS.

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. 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 (9)

In a method for voice announcement of the fact that an extension subscriber has been called using an automatic switching device in a switching system, A storage process of storing the telephone number of the extension subscriber and the name of the extension subscriber corresponding thereto in a memory of the automatic switching device by voice; A ring dispensing process for dispensing a ring to subscribers according to the incoming call when a call from a trunk line is received; And when the extension subscriber according to the incoming call does not respond, searching for the memory and broadcasting the name of the extension subscriber corresponding to the telephone number of the extension subscriber according to the incoming call. The method of claim 1, wherein the telephone number and name of the extension subscriber are stored in a group unit, and the name of the extension subscriber according to the call is broadcasted by voice to the group to which the extension belongs. . 3. The method of claim 2, wherein the telephone number and name of the extension subscriber are stored in small group units and whole group units including these small groups. The method of claim 3, wherein the broadcasting process, A first step of searching for the memory when the extension subscriber according to the call does not respond by the first setting time; A second step of voice-guided broadcasting the name of the extension subscriber corresponding to the extension subscriber's telephone number according to the incoming call to a small group to which the extension subscriber belongs; After the second step is performed, if there is no response of the extension subscriber by the second set time, the third step of voice broadcasting the name of the extension subscriber corresponding to the telephone number of the extension subscriber according to the incoming call to the entire group is performed. Characterized by the above. In a method for voice announcement of the fact that an extension subscriber has been called using an automatic switching device in a switching system, A first storing step of dividing the telephone numbers of the extension subscribers accommodated in the switching system into small group units and whole group units, and storing the names of the extension subscribers in a memory in the automatic switching device by voice; A second storing process of storing a greeting guide message and an absence guide message in the memory; When the call from the trunk line is received, the first guide message sending process for sending the greeting message to the caller according to the incoming call, A ring dispensing process of transmitting a ring to the subscriber of the entered telephone number when the caller inputs the telephone number of the called extension in response to the dispensing of the greeting message; A determination process of determining whether the called extension is busy; If the called extension does not answer until the first preset time elapses when it is determined that the called extension is not in a call, the memory is searched and the name of the called extension is spoken to the small group. The first broadcast course to guide the broadcast to, A second broadcasting process of guiding voice to the entire group if there is no response until the second set time elapses after the name of the called extension is guided to the small group; And a second message sending process of sending out the missed guide message to the caller if there is no response until the third set time elapses after the name of the called extension is broadcasted to the entire group by voice. How to. 6. The method of claim 5, further comprising the step of sending a third guide message to send the busy guide message to the caller when it is determined that the called extension is busy. 7. The method of claim 6, wherein the caller repeats the determination process in a fourth set time unit when the caller makes a request to wait for the called extension to terminate the call in response to the transmission of the busy message. Characterized in that. The method according to claim 5 or 7, wherein the message is sent to the caller to leave a voice message after the missed announcement message is sent or when the called extension does not make a request to wait for the call to terminate. It further comprises a method. The method of claim 8, further comprising recording a voice message to the memory when the voice message is input from the caller.

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