KR20010026684A - Method for automatic dialing in private exchange - Google Patents

Abstract

PURPOSE: A method for automatically dialing in a PBX is provided to reduce the annoyance that an intercom subscriber dials the telephone number recorded in a message manually and a telephone operator should record and deliver the telephone number of a caller. CONSTITUTION: If an inner user is absent, a telephone operator records the business of a caller with voice and inputs "in-absence call message recording" function code to the intercom subscriber(ST11). After recording the business, the telephone operator stores the telephone number information of the caller with the corresponding voice message and gives an in-absence call alarm to the intercom user(ST12-ST14). If the intercom user tries to confirm in-absence call, a message confirm code is received, the voice message is outputted, and the telephone number of the caller is displayed in a LCD of a telephone(ST15-ST17). If the intercom subscriber inputs "recorded telephone number dial" function code, a PBX dials to the corresponding telephone number automatically.

Description

Automatic dialing method of private exchange {Method for automatic dialing in private exchange}

The present invention relates to an automatic dialing method of a simple private exchange using a calling party information number interworking with a missed call voicemail message. In particular, the present invention relates to a calling party information of an outside call using an calling party information number of an external trunk line through an ISDN network. If a private private exchange detects the number and stores the calling party's information number in the missed call voicemail message left by the attendant, then the extension subscriber enters the "Automatically Stored Number" code while checking the remaining voice mail message. It relates to an autodial method of a private exchange which is adapted to allow an exchange to autodial using a stored number.

Conventionally, when an operator wants to deliver a guide message for a missed call to a specific extension subscriber, it operates as follows.

In other words, the telephone number and usage of the external subscriber were recorded in the voice mailbox, and then the extension user re-recorded the telephone number while dialing by hand while checking the corresponding message using the voice mailbox.

However, this conventional method has the inconvenience that the operator must record the external subscriber's number and record it again in the voice mailbox in order to deliver the external telephone number, and the user must record the recorded number and dial again.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to provide a simple private exchange by using a calling party information number of an external switch over an ISDN network. Detects and stores the calling party's information number in the missed call voicemail message left behind by the attendant, and then enters the "automatically stored number" code while the extension subscriber checks the remaining voice mail message. Automatic dialing on private exchanges, which allows users to dial the phone number left in the message by hand, and the hassle that the operator has to record and send the number of external users. To provide a way.

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

2 is a flowchart showing an automatic dialing method of a private exchange according to the present invention.

Explanation of symbols on the main parts of the drawings

10: voicemail system 20: simple private exchange

21: central processing unit 22: station control unit

23: ISDN trunk line control unit 30: extension telephone

In order to achieve the above object, the automatic dialing method of the private exchange according to the present invention,

A first step of recording a caller's user status if the internal user is absent and inputting a "leave missed call message" function code for the subscriber; A second step of recording the event and storing the calling party information number with the corresponding voice message and giving an extension user an missed call alarm; A third step of receiving the message confirmation code when the extension user attempts to confirm the missed call, outputting a voice memo recorded with the message, and displaying the caller's telephone number on the LCD of the extension subscriber's phone; After the third step, if the extension subscriber enters the "recorded number dial" function code, the simple private switch performs a fourth step of automatically dialing the corresponding number.

Hereinafter, an embodiment according to the technical spirit of the automatic dial method of the private exchange of the present invention as described above is as follows.

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

As shown therein, the voicemail system 10 providing a voice mail function; The central processing unit 21 for controlling the overall functions of the simple private exchange 20, the station control unit 22 for controlling the interface with the extension telephone 30, and the ISDN trunk line control unit 23 for controlling the ISDN trunk line with the switching center. It consists of a simple private exchange 20 provided with).

2 is a flowchart showing an automatic dialing method of a private exchange according to the present invention.

As shown in the figure, a first step (ST11) of recording an outgoing user's condition and inputting a "leave missed call message" function code for an extension subscriber when the internal user is absent; A second step (ST12 to ST14) of storing the calling party information number with the corresponding voice message and recording the missed call alert to the extension user after recording the event; A third step (ST15 to ST17) of receiving a message confirmation code and outputting a voice memo recorded with the message when the extension user attempts to confirm the missed call and displaying the caller's telephone number on the LCD of the extension subscriber's phone; After the third step, when the extension subscriber inputs the "recorded number dial" function code, the simple private switch 20 performs the fourth step ST18 to ST20 to automatically dial the corresponding number.

The operation of the automatic dial method of the private exchange according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, the present invention uses the calling party information number of the external trunk line through the ISDN line. When the user wants to leave a missed call message for the external telephone, the calling party stores the calling party information number of the corresponding call together, and the extension subscriber checks the voice mailbox. While displaying the external caller number on the LCD of the user's phone while the "stored number autodial" function code is input, the simple private exchange 20 performs a function to automatically dial using the corresponding number.

Thus, the operator transfers the call of the external user to the desired extension user by using the extension telephone 30. At this time, when the call of the extension user who is switched to the absence of an internal user is recalled, the attendant records the missed call message to the corresponding extension user (ST11). That is, the attendant records the situation in voice and inputs a "leave missed call message" function code for the subscriber.

When the call is terminated, it is determined whether the calling party information number for the call is included (ST12), and if it is included, the calling party information number is associated with the voice mail message which is the corresponding voice message and stored in the memory (ST13).

It then gives the extension user a missed call alarm (ST14).

Meanwhile, when the extension user confirms that he / she has a missed call message, the extension user attempts to confirm the missed call by inputting a message confirmation code (ST15).

Therefore, when the extension user attempts to check the missed call by inputting a message confirmation code, it is determined whether the calling party information number for the call is stored together (ST16).

Accordingly, if the calling party information number for the call is stored, the voice memo of the attendant is recorded and the calling party's telephone number is displayed on the LCD of the extension subscriber's telephone (ST17).

In addition, when the extension subscriber wants to talk with the external user of the calling party who left the missed call, it is determined whether the extension subscriber has entered the "stored number autodial" function code (ST18).

So, if the extension subscriber enters the "automatic dialed number stored" function code, it is possible to make a call by executing the automatic dial to the corresponding number in the simple private exchange 20 (ST20).

As such, the present invention detects the calling party information number for the external conversion by using the calling party information number of the external trunk line through the ISDN network, and adds the calling party information number of the call to the missed call voicemail message left by the attendant. After saving, if the extension subscriber enters the "Saved number autodial" code while checking the voice mail message left, the simple private exchange will automatically dial the stored number.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the automatic dialing method of the private exchange according to the present invention has the inconvenience of the user dialing the telephone number left in the message by hand again and the trouble of the operator having to record the external user's number and deliver it again. There is a reduction effect.

Claims (1)

In the automatic dial method of a private exchange, A first step of recording a caller's user status if the internal user is absent and inputting a "leave missed call message" function code for the subscriber; A second step of recording the event and storing the calling party information number with the corresponding voice message and giving an extension user an missed call alarm; A third step of receiving the message confirmation code when the extension user attempts to confirm the missed call, outputting a voice memo recorded with the message, and displaying the caller's telephone number on the LCD of the extension subscriber's phone; And after the third step, when the extension subscriber inputs the "recorded number dial" function code, the simple private switch performs the fourth step of automatically dialing the corresponding number.