KR0138388B1 - Key phone system - Google Patents

Abstract

The present invention relates to a key-phone system, and to check the message stored in the voice mailbox received in the absence of the extension subscriber, and to read the caller's phone number stored in the voice mailbox when the extension subscriber's call request to perform the automatic dialing .

According to the present invention, when the caller's message recorded in the voice mailbox and the caller's phone number are detected while the extension subscriber of the key phone system is absent or busy, the caller's phone number stored in the voice mailbox is automatically stored according to the call request of the extension subscriber. As it dials, it provides convenience in connection operation to call.

In addition, the present invention provides reliability in use because the caller connects the call path to the caller's location through a simple key signal input of the extension subscriber when the caller moves to a customer or a specific place to record and store a message for a call request.

Description

How to automatically dial the calling party's phone number in the keyphone system

1 is a block diagram of a general key phone system.

2 is a flowchart illustrating caller message confirmation through a voice mailbox in a conventional key phone system.

3 is a flowchart for realizing a method for automatically dialing caller numbers in a key phone system according to the present invention.

* Explanation of symbols for main parts of the drawings

100: caller phone 200: local exchange

300: key phone system 310: main device

311 control unit 312 memory unit

320: phone keypad 330: voice mailbox

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key phone system, and more particularly, to a method for automatically dialing a caller's phone number of a key phone system, which executes automatic dialing by reading a caller's phone number stored in a voice mail box in the absence of an extension subscriber.

In general, as shown in FIG. 1 of the accompanying drawings, a key phone system connects a plurality of caller phones 100 to handle a general number of operations for forming a call path between trunk lines. Message of the caller received through the main line or extension in the absence of the main device 310 to access the trunk line and control the overall operation of the connection by the extension subscriber and the station subscriber or the call of the station and the station subscriber, It consists of a voice mailbox 330 for storing the, and a key phone telephone 320 assigned to each extension subscriber is given a unique number of each extension subscriber, the main device 310 is formed by a call between the CO line and the extension subscriber or extension subscriber And a control unit 311 for controlling overall operations of the operation of the keyphone system, such as storing and receiving voice messages, and operation of the keyphone system. Program data for the storage memory consists of a part 312 that is.

Referring to FIG. 2, a conventional operation of a method of checking a message stored in a voice mailbox and a call connection method with a caller in the key phone system as described above is as follows.

When any caller 100 dials the other party's telephone number through a key input means to conduct a call with a subscriber of a predetermined keyphone telephone 320 connected to the keyphone system (step 101), the local exchange 200 dials the dialed telephone. The call line is occupied by occupying the subscriber station line of the number. At this time, when an incoming signal is detected by the control unit 311 of the main device 310 of the key phone system 300 occupied by the trunk line exchange from the local exchange 200 (step 102), the control unit 311 determines the voice mailbox 330 on the voice mailbox 330 side. By inputting a control signal of the voice mail 330, a message indicating the input of the number of the desired subscribers of the extension subscriber to the call is sent to the caller 100 to which the incoming signal is applied (step 102). Then, when detecting a signal specifying the unique number of the extension subscriber wants to call from the caller 100 side, the control unit 311 of the main device 310 is to establish a trunk line with the key phone telephone 320 of the extension subscriber specified by the caller 100. The call route of the caller 100 is connected (step 104). When a busy tone or error tone occurring during a call is detected from the telephone telephone 320 of the extension designated by the caller 100 after executing step 104, or a predetermined time elapses due to the absence of the user of the telephone keypad 320 extension. It is determined whether or not a response is detected from the user of the extension key phone 320 until (Step 105). If the busy tone or the subscriber's response is not detected in step 105, the control unit 311 of the main device 310 applies a predetermined control signal to the voice mailbox 330 to select a desired message from among the voice messages contained in the voice mailbox 330. A voice prompt to leave a message is sent to the caller 100 (step 107, step 108). In step 105, when the subscriber of the key phone telephone 320 designated by the caller 100 off-hooks the transmission / reception means and the call path is connected, the caller 100 of the trunk line and the subscriber of the key phone telephone 320 of the extension proceed to make a call. (Step 106). In step 108, if the caller 100 refuses to leave a message, and on-hooks the transmission / reception means to block the communication path, the control unit 311 of the main device 310 terminates the call (step 109).

After the step 108 is executed, if a predetermined message is input from the caller 100 requesting to be connected by a call, the control unit 311 of the main apparatus 310 records the input voice message at a predetermined address of the voice mailbox 330. When the caller detects the end of the call of the caller 100 (step 110), the reception of the received voice is completed (step 111).

After that, the subscriber of the extension key phone 320 checks the message stored in the voice mailbox 330 area and performs a predetermined operation corresponding thereto.

As described above, in the conventional key phone system, an extension subscriber checks the caller's contact information stored in the voice mailbox, and thus the subscriber of the key phone needs to dial by driving a key input means, which causes troublesome use.

The present invention has been made in view of the above-described problems, and an object thereof is that an extension subscriber detects the caller's telephone number stored in a voice mailbox and requests a call in the key phone system when the subscriber is absent or busy and is authorized from the CO line. The caller's phone number stored in the voice mail box is automatically dialed to connect the call.

In order to achieve the above object, a feature of the present invention is a key phone system equipped with a voice mail box, which transmits a predetermined message for an extension set in the voice mail box according to an incoming signal from an arbitrary caller. After the first process occupies the corresponding station according to the caller's selection, and if busy tone is detected from the station occupied after the execution of the first process or a response is not detected within a predetermined time, a predetermined guide message stored in the voice mailbox is received. A second step of detecting the sender's message after transmitting to the sender side; and if the sender's message is detected in the second step, storing the voice message in the voice mailbox and then transmitting a predetermined guide message previously stored in the voice mailbox to the sender side; If the caller's phone number is detected, the caller can store the voicemail and connect to the call. When the extension subscriber detects a signal requesting confirmation of the received message after executing the fourth step of blocking and executing the fourth step, the sender whose message is stored by the extension subscriber after transmitting the message of the caller received and stored in the voice mailbox. A fifth step of detecting an outgoing signal for requesting connection with a call; and a sixth step of reading a caller's phone number stored in the voice mailbox and performing automatic dialing when the outgoing request of the extension subscriber is detected in the fifth step; The present invention provides a method for automatically dialing a caller's telephone number in a key phone system, comprising the process of:

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

3 is a flowchart for realizing a method for automatically dialing a caller's phone number in a key phone system according to the present invention.

As can be seen from the figure, the present invention is that any caller 100 dials the other party's telephone number through a key input means to conduct a call with a predetermined telephone telephone extension subscriber 320 connected to the key phone system (step). 201) The local exchange 200 connects the call path by occupying the subscriber trunk line of the dialed telephone number. At this time, when an incoming signal is detected by the control unit 311 of the main device 310 of the key phone system 300 occupied by the trunk line exchange from the local exchange 200 (step 202), the control unit 311 is predetermined on the voice mailbox 330 side. By applying the control signal of the voice mail 330, a message indicating that the input of the number of the extension subscriber who wants to call in the voice message is sent to the caller 100 to which the incoming signal is applied (step 203). Subsequently, when the caller 100 detects a signal designating a unique number of the extension subscriber key phone telephone 320 to be called, the control unit 311 of the main apparatus 310 determines the key phone telephone of the extension subscriber designated by the caller 100. 320 and a call path between the caller 100 via the trunk line (step 204). After the execution of step 204, the busy tone or error tone generated during the call is detected from the keypad phone 320 of the extension specified by the caller 100, or until the predetermined time has elapsed due to the absence of the extension telephone user. It is determined whether or not a response is detected from the user of the telephone (step 205). If the busy tone or the subscriber's response is not detected in step 205, the control unit 311 of the main device 310 applies a predetermined control signal to the voice mailbox 330 side to select a desired message from among the voice messages stored in the voice mailbox 330. A voice prompt to leave a message is sent to the caller 100 (steps 207 and 208). In step 205, when the subscriber of the key phone telephone 320 designated by the caller 100 off-hooks transmission and reception means and the call path is connected, the caller 100 of the trunk line and the subscriber of the key phone telephone 320 of the extension connect the call. If the caller 100 of the CO line and the subscriber of the extension telephone phone 320 proceeds to the call (step 206).

In step 208, if the caller 100 refuses to leave a message and blocks the communication path by on-hooking the transmission and reception means, the control unit 311 of the main apparatus 310 terminates the call and the message input of the caller 100 is detected. When the voice message is input, the voice message is recorded and stored in the predetermined address area of the voicemail box 330 (step 209).

Then, when the recording of the voice message recording of the caller 100 is completed, the control unit 311 of the main device 310 controls the voice mail box 330 to input a caller's phone number if the user wants to answer the call from the recorded voice message. Is output to the sender 100 side (step 210). It is determined whether the input of the telephone number is detected from the caller 100 within a predetermined time after the execution of step 210 (Step 211). If the input of the telephone number is not detected, the control unit 311 of the main apparatus 310 determines the call path. When the caller detects the input of the telephone number from the caller 100 within the predetermined time, the input telephone number is stored in the predetermined address area of the voice mailbox 330 (step 212), and the caller 100 ends the call. Therefore, the connection to the call is cut off (step 213).

Subsequently, the extension subscriber of the keypad phone 320 searches the address area of the voice mailbox 330 assigned to him and detects the message of the call request and the caller's telephone number in the recorded and received message and the received message (step). 214) When the subscriber of the key phone 320 secures a dial tone and inputs an autodialing signal for connecting to the caller 100 by a call, the control unit 311 of the main apparatus 310 receives the telephone number of the input caller 100. Automatic dialing is used to connect the caller with the caller who recorded the message (step 216).

As described above, the present invention provides a caller stored in a voice mailbox according to a call request of an extension subscriber when a caller's message and a caller's phone number recorded in a voice mailbox are detected in an extension or absence of an extension subscriber of a key phone system. Because it automatically dials the phone number of the phone, it provides convenience for the connection operation to the call.If the caller moves to a customer or a specific place and records and saves a message for a call request, the call is made to the caller's location through simple key input of the subscriber. Furnace connection provides reliability in use

Claims (1)

In a key phone system provided with a voice mailbox, a predetermined message for transmitting an extension set to the voice mailbox according to an incoming call signal from an arbitrary caller and then occupying the extension according to the caller's selection. A first step of detecting a caller's message after transmitting a predetermined guide message stored in the voice mailbox to the sender if busy tone is detected from the station occupied in step 1 and the execution of the first process or a response is not detected within a predetermined time. A second step of detecting a caller's telephone number input after storing a message of the caller in the second step and transmitting the predetermined guide message previously stored in the voice mail box to the sender, when the caller's message is detected in the second step; After the process and the third process is executed, if the caller's telephone number is detected When the extension subscriber detects a signal requesting confirmation of the received message after executing the fourth step of blocking connection to the call and executing the fourth step, the extension subscriber transmits the caller's message received and stored in the voice mailbox. A fifth step of detecting an outgoing signal requesting a connection between the caller who has stored the message and a call; and when the outbound call request of the extension subscriber is detected in the fifth step, the caller's telephone number stored in the voice mailbox is read and automatically dialed. Calling phone number automatic dialing method of a key-phone system comprising a sixth step of executing.