KR100422925B1 - Method And Apparatus For Automatic Answering In Private Branch Exchange - Google Patents

Abstract

In the private switching system, when the extension is subscribed to the answering machine, the incoming call is received from a predetermined external number. In this case, the message contents recorded only for the corresponding number are automatically answered to provide an optional automatic response based on caller identification.

The present invention stores caller information input by requesting caller information when an incoming call is detected on a CO line, and determines whether an extension number required for call setup is registered as an answering machine when the caller information is completed. If it is determined to be registered, it compares and analyzes the caller information with the set data to determine whether there is a matching number. If a matching number exists, the announcement set in the corresponding group is sent to the caller side. Characterized in that the announcement sent to the last group of the extension number.

Description

Automatic answering device and method of private exchange system {Method And Apparatus For Automatic Answering In Private Branch Exchange}

The present invention relates to a private switching system, and more particularly, when an incoming call of a predetermined external subscriber is detected while the extension terminal is set to the answering machine, the caller may transmit the announcement recorded for the corresponding number. An automatic answering device and method for a private exchange system for providing selective automatic answering by identification.

In general, a private switching system is a simple switching system that is located between a public switched telephone network (PSTN) and an extension terminal and connects a call between a trunk line and an extension terminal and an extension terminal, as shown in FIG. The trunk line connection circuit section 11, the trunk line control section 12, the station control section and the interface section 13, and the guide voice transmission section 14, the trunk line connection circuit section 11 is a PSTN (10) consisting of a general trunk line and a dedicated line. ), And interfacing voice and data signals transmitted and received via the call established between the station terminal 30 and the trunk line or the dedicated line.

The trunk line control unit 12 monitors the overall state of the trunk line and analyzes the call connection request applied through the trunk line and the trunk line connection request signal of the extension terminal 30 to control the switching operation for the corresponding station or trunk line connection. The general history of the trunk line connection of the terminal 30 is managed.

The extension control unit and the interface unit 13 connect a plurality of extension terminals 30 connected to the private exchange system 10 to interface the voice and data signals transmitted and received between the private exchange system 10 and the extension terminal 30. In response to the call connection request, the switching operation for link connection to the corresponding extension terminal 30 and the entire extension terminal 30 to be connected are monitored and the history thereof is managed.

The guide voice transmitter 14 responds to an incoming call requesting a call connection from a CO line or an extension terminal to a certain extension terminal when a corresponding call is not connected due to the absence of the user or a busy call. The message is sent to the calling terminal requesting a call connection.

In the conventional switching system having the technical configuration as described above, the operation for sending the auto-reply message is as follows.

For example, when an incoming call requesting a call setting is made to an arbitrary extension terminal 30 connected to the private switching system 10 to the trunk line connection circuit 11 connecting the PSTN 20, the trunk line control unit 12 ) Analyzes the incoming call and applies a control signal for requesting call setup with the corresponding station terminal 30 to the station control unit and the interface unit 13.

At this time, the extension control unit and the interface unit 13 analyze the call setup request signal with the extension terminal 30 applied to determine whether the corresponding extension terminal 30 is in a call or the answering machine is set (S10). (S11).

If it is determined that the corresponding extension terminal 30 for the incoming call is busy or the answering machine is set, the extension control unit and the interface unit 13 send out the announcement set on the guide voice transmitter 14. Require.

At this time, the guide voice transmitter 14 transmits the set uniform guide message to the calling party requesting the incoming call and notifies the fact that the current call is impossible and the input of the request for the incoming call (S12).

Thereafter, the voice and data inputted from the caller requesting the incoming call are stored in the designated address of the memory means, and then the notified terminal 30 is notified that there is a stored message (S13).

In addition, when the extension terminal 30 for the incoming call is not in a call and the answering machine is not set, the extension control unit and the interface unit 13 transmit an incoming ring to the corresponding extension terminal 30 side. Notify that there is a call connection request (S14).

As described above, it is determined whether the subscriber's response is detected within a predetermined number of times of the incoming ring while the incoming ring is sent to the extension terminal 30 (S15). If the response is not detected, the guide voice transmission is performed as described above. After transmitting the announcement through the unit 14, the following operation is performed, and when a response of the corresponding extension terminal 30 is detected, a call is set to maintain a call.

As described above, the conventional private switching system does not store multiple voices for each extension when the incoming extension is busy or the subscriber has set the auto answering function. There has been a problem in providing automatic responses to external subscribers only in a uniform and uniform manner.

The present invention has been made in view of the above-mentioned general problems, and an object thereof is to provide a group by designating an external subscriber number to which an autonomous terminal connected to a private exchange is to send an automatic answer, and forming a group for each group. Set up the auto reply guide message of another comment and save it as a table, and then check the caller through the set table when an incoming call is detected from the outside, and if it is a predefined caller, provide the auto reply to the comment set for the group. It is to protect the privacy on the communication by the automatic response.

1 is a schematic structural block diagram of a conventional private exchange system,

2 is a flowchart for automatic response execution in a conventional private exchange system,

3 is a schematic structural block diagram of a private exchange system according to the present invention;

4 is a flowchart of an embodiment for performing selective delivery of an auto-reply message in a private exchange system in accordance with the present invention.

<Description of the symbols for the main parts of the drawings>

10: private exchange system 15: database

20: PSTN 30: extension terminal

Features of the present invention for achieving the object as described above, the trunk line connecting means for connecting the PSTN network and private switching system, and the trunk line control means for controlling the call connection between the trunk line and the station by monitoring the overall state of the trunk line A private switching system comprising: data storage means for setting an automatic answering function by dividing an external subscriber number designated by an extension subscriber into groups; Guide voice transmitting means for recording and storing a different answering machine announcement for each group stored in the data storing means; Switch the call connection between the trunk line and the station and the station, and when the incoming call from the caller to the extension subscriber occurs, the data storage means checks the group to which the external subscriber number corresponding to the caller belongs to control the guide voice transmission means. It includes an extension control / interface means for transmitting the answering machine announcement corresponding to the group to the caller.

In addition, another aspect of the present invention provides an automatic answering method of a private switching system, comprising: registering and setting an automatic answering function by dividing an external subscriber number designated by an extension subscriber into groups; Storing incoming caller information by requesting caller information from the caller when an incoming call from the caller is detected; Determining whether the extension subscriber requested to establish a call is busy or has registered the answering machine function; If it is determined that the extension subscriber requested by the caller is not in a call or does not register the answering machine function, it determines whether there is a response to the incoming ring within a certain number of times after transmitting the ring to the corresponding subscriber. Process of doing; If it is determined that the extension subscriber who has requested the call setup is busy or has registered the answering machine, or if it is determined that there is no answer to the ringing call within the predetermined number of times, the caller information is stored with the answering machine registered data. Comparing and analyzing the external subscriber number corresponding to the caller; If the external subscriber number matching the caller information does not exist, sending the answering machine announcement of the last group set to the extension subscriber requested for call setup to the calling party; If there is an external subscriber number matching the caller, the automatic response guide message set in the group to which the corresponding external subscriber number belongs is sent to the calling party.

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

As can be seen in Figure 3, the answering machine of the private switching system according to the present invention is connected to the PSTN 20, the trunk line connection circuit 11 for maintaining the call setup between the extension terminal 30 and the PSTN (20) And monitoring the overall state of the trunk line and controlling the call connection between the trunk line and the station, and monitoring the plurality of extension terminals 30 connected to the private switching system 10 and interfacing the signals transmitted and received. An extension control unit and interface unit 13 for controlling switching for link connection to the corresponding station terminal 30 according to a call connection request, and a guide voice transmitter 14 for transmitting an answering machine announcement to an incoming call; In the conventional structure consisting of a), further comprising a database (15) for setting and storing the external subscriber number designated by each extension terminal in a group within the extension number; Is configured.

In the above guide voice transmitting unit 14, different auto attendant announcements are set for each area of each extension number group, and the external subscriber group for each extension number set in the database 15 is shown in the following table. It becomes like 1.

Ext. A Group 1 External Phone A-1 … External phone A-m Group 2 External Phone A-2 … External phone A-m Group 3 External Phone A-3 … External phone A-m Group 4 External Call A-4 … External phone A-m Ext. B Group 1 External call B-1 … External phone B-m Group 2 External call B-2 … External phone B-m Group 3 External call B-3 … External phone B-m Group 4 External call B-4 … External phone B-m .. .. .. .. .. Ext. N Group 1 External Phone N-1 … External phone N-m Group 2 External Phone N-2 … External phone N-m Group 3 External Phone N-3 … External phone N-m Group 4 External Call N-4 … External phone N-m

In the private exchange system of the present invention having the technical configuration as described above, the operation for the transmission of the optional automatic reply message according to the caller confirmation is as follows.

First, the subscribers of the extension terminals subscribed to the private switching system 10 set the recording so that the external incoming call subscribers can answer each other automatically to the voice recognition memory means provided in the guide voice transmitter 14. This is done by the following process.

When the subscriber of the extension terminal enters the answering machine announcement function code provided in his terminal and specifies a group number to store the contents to be recorded, the extension control unit and the interface unit 13 analyze the input signal. Then enter the auto answer announcement recording mode.

At this time, when the subscriber inputs the announcement that he wants to send through his handset, the announcement is stored in the designated group, and when an input of a specific digit, for example, "*" digit, is detected that notifies the end of recording. The recording operation of the announcement ends.

Then, if the external subscriber designates an external subscriber number that can listen to the announcement currently recorded by the extension subscriber, the external subscriber's number is assigned to the group designated in the database 15 as shown in Table 1 above. Stored.

In order to designate one or more external subscriber numbers consecutively, the external subscriber number is distinguished by inputting a specific digit that distinguishes subscribers after designating one external subscriber number, for example, a "#" digit.

As described above, in the state where different announcements to be sent when an incoming call is detected in each extension terminal subscribed to the private exchange system are set, the announcement of the announcement by the auto answer function is as follows.

When an incoming call of an external subscriber requesting a call setup with the extension terminal 30 is detected at the trunk line connection circuit unit 11 (S101), the trunk line control unit 12 requests the caller of the incoming call to input caller information and then sends it to the caller. Temporarily stores general information on the caller's name and telephone number inputted from the memory means (S102).

Thereafter, the number of the extension terminal included in the incoming call is extracted and the information of the extension control unit and the interface unit 13 is analyzed to determine whether the corresponding extension is in a call or the answering machine is set (S103).

If the corresponding extension to the incoming call is busy or the auto answering function is set, the extension control unit and interface unit 13 transmits the caller information temporarily stored in the trunk line control unit 12 to the database 15. The comparison is made with the set registration value to determine whether the corresponding number exists in the table set as shown in Table 1 above (S104) (S105).

When a number matching the caller information requesting the incoming call is found in the registration table of the database 15, the index of the group to which the number belongs is extracted and recorded in the corresponding number group from the guide voice transmitter 14 The answering machine reads the answer message and sends the incoming call to the calling party (S106).

If the number corresponding to the caller information requesting the incoming call is not found in the registration table of the database 15, the extension control unit and the interface unit 13 transmit the various numbers designated by the extension number to the guide voice transmitter 14. Among the kinds of announcements, the announcement of the last group is read out and sent to the calling party for the incoming call (S109).

After storing the caller's information according to the incoming call request in S103, if the extension number required for call setting is not busy and the answering machine is not set, the trunk line control unit 12 controls the extension control unit and interface unit 13; Call the terminal of the corresponding extension number through (S107).

As described above, the extension control unit and the interface unit 13 determine whether a response of the corresponding terminal is detected within a set number of times while the incoming ring is sent to the extension terminal that is required to set up the incoming call (S108). If the call is maintained and the response of the corresponding terminal is not detected within the set number of times, enter the answering machine execution mode and compare and analyze the caller's information from the table set in the database 15 as described above. The caller who sends the call to the calling party who requested the call setup sends the announcement about the impossible call.

As described above, according to the present invention, in the private switching system, the extension subscriber designates a CO line subscriber who he / she wants to call and forms a group, and then records announcements for each group differently so that caller information is detected when detecting an incoming call from the CO line. After requesting to transmit the recorded announcement of the group compared to the designated CO line subscriber, different unique answering announcements are sent according to the external subscribers to one extension number to protect the privacy of communication.

Claims (5)

In the private exchange system having a trunk line connection means for connecting the PSTN network and the private exchange system, and the trunk line control means for monitoring the overall state of the trunk line to control the call connection between the trunk line and the station, Data storage means for setting an automatic answering function by dividing the external subscriber number designated by the extension subscriber into groups and storing the automatic answering function; Guide voice transmitting means for recording and storing a different answering machine announcement for each group stored in the data storing means; Switch the call connection between the trunk line and the station and the station, and when the incoming call from the caller to the extension subscriber occurs, the data storage means checks the group to which the external subscriber number corresponding to the caller belongs to control the guide voice transmission means. And an extension control / interface means for transmitting the answering machine announcement corresponding to the group to the caller. delete In the automatic response method of the private exchange system, Registering an external subscriber number designated by the extension subscriber by group and setting and registering an automatic answering function; Storing incoming caller information by requesting caller information from the caller when an incoming call from the caller is detected; Determining whether the extension subscriber requested to establish a call is busy or has registered the answering machine function; If it is determined that the extension subscriber requested by the caller is not in a call or does not register the answering machine function, it determines whether there is a response to the incoming ring within a certain number of times after transmitting the ring to the corresponding subscriber. Process of doing; If it is determined that the extension subscriber who has requested the call setup is busy or has registered the answering machine, or if it is determined that there is no answer to the ringing call within the predetermined number of times, the caller information is stored with the answering machine registered data. Comparing and analyzing the external subscriber number corresponding to the caller; If the external subscriber number matching the caller information does not exist, sending the answering machine announcement of the last group set to the extension subscriber requested for call setup to the calling party; And if there is an external subscriber number that matches the caller, sending an automatic response announcement set in a group to which the corresponding external subscriber number belongs to the caller side. delete delete