KR20020017141A - The PBX apparatus which has function to alarm voice message and alarming method - Google Patents

Abstract

PURPOSE: A PBX(Private Branch eXchange) having a voice message notification function and a notification method are provided to rapidly cope with a caller's urgent call by immediately notifying a called subscriber of what a message has been left due to the called subscriber's absence. CONSTITUTION: A PBX(10) having a voice message notification function(10) is composed of a DTC(Digital Trunk Circuit)(10e), an SLC(Subscribe Line Circuit)(10b), an RMFC(R2 Multi Frequency Circuit)(10c), and an SCM(System Control Module)(10d). The DTC(10e) uses an E1/R2(6) as a digital interface to cover a destination detection function, a loop seizure function, etc. The SLC(10b), connected with an interphone(4), controls a matter for the termination of a subscriber. The RMFC(10c) is in charge of R2 signal processing and DTMF signal processing. The SCM(10d) controls the whole system of the PBX(10).

Description

The PBX apparatus which has function to alarm voice message and alarming method}

The present invention relates to a private branch eXchange (PBX) that operates itself inside an office or a factory, and in particular, a voice mailbox system (VMS: Voice Mail System or Voice Mailing System) is additionally added to the PBX. The present invention relates to an on-premises exchange with the capability to record the voice of the sender and transmit it to the receiver.

In general, a private branch exchange (PBX) refers to a self-managed telephone exchange system performed inside a single company, factory, building, etc. in a concept compared to a public communication facility handled by a telecommunication service provider. The exchange may be connected to an external public circuit switched network (PSTN) to receive outgoing calls, or vice versa.

In addition, the voice mail system (VMS) is a service for storing voice messages or receiving stored voice messages through a telephone by using digitization and transmission technology of voice. Unlike the service, voice mailbox companies recruit members and operate their businesses by receiving membership fees or royalties, and are a voice processing system that is essential equipment for developing various additional services using voice.

1 is a schematic configuration diagram of a premises exchange system in which a conventional voice mailbox system is installed.

Referring to FIG. 1, the configuration of the premises exchange system in which the voice mailbox system is installed is roughly divided into a premises exchange (PBX) 1 and a voice mailbox system (VMS) 2, which are premises exchange (PBX) 1. An analog trunk circuit (ATC, hereinafter referred to as ATC) 1a, which is responsible for incoming call detection and loop occupancy functions, and the subscriber's local telephone 4 (Subscribe Line Circuit: SLC) (1b) that connects to subscribers and controls subscriber information, R2 signal and dual tone multiplexing R2 Multi Frequency Circuit (RMFC, hereinafter RMFC) responsible for frequency (Dual Tone MultiFrequency: DTMF) signal processing (1c) and the whole of the premises exchange System control system It consists of 1d (System Control Module: SCM).

However, the ATC 1a may be changed to a digital trunk circuit (DTC, hereinafter referred to as DTC) 1e, and the connection may be used by changing to E1 / R2 (6) suitable for a digital trunk.

In addition, the voice mailbox system (VMS) 2 is a voice processing circuit (VPC, hereinafter referred to as a VPC) that is responsible for voice guidance, DTMF detection, and transmission functions (2a), and the branch exchange (PBX). (1) and an analog interface (7) connected to the analog trunk circuit (Analog Trunk Circuit: ATC, hereinafter referred to as ATC) that functions as ring detection and loop occupancy, etc. (2b), When the caller wants to record, the disc unit (Disc Unit: DKU) responsible for guiding and storing the recorded data (2c) and the call processing and data processing of the voice message system are processed. A main processing unit (MPU, hereinafter referred to as MPU) 2d.

In addition, a path between the SCM 1d of the branch exchange 1 and the MPU 2d of the voice mailbox system 2 and transmitting / receiving a protocol is composed of an RS-232C communication port 8, and the public circuit switching network. (PSTN) 3 and the analog interface 5 to which the ATC 1a of the premises exchange 1 are interconnected, and the DTC 1e, which can be replaced with the ATC 1a, is the public circuit switched network ( E1 / R2 (6) is used as a path connected to the PSTN (3). In E1 / R2 (6), E1 is a device accommodated in an exchange frame, and constitutes a part of a call path to monitor or control a call. By means of the trunk of the function of supplying the call current, signal transmission, billing, etc., and R2 is a way to exchange the telephone numbers with each other.

On the other hand, the analog interface 7 to which the SLC 1b of the branch exchange 1 and the ATC 2b of the voice mailbox system 2 are connected uses a result of measurement on a continuous physical quantity such as a voice signal for computer control or the like. In this case, it refers to a circuit used to change the analog quantity into a digital quantity.

A conventional voice mailbox system having such a configuration will be described in time series for the operation of the premises switched network.

First, when a caller makes a call to a subscriber via a PBX (1) using a public circuit switched network (PSTN) 3, an outgoing call is detected at the ATC 1a of the premises exchange 1, and A ring is sent to the called party's internal telephone 4 via the SLC 1b.

If there is a response from the called party to the ring sent to the called party, other steps are unnecessary, and the called party and the calling party talk to each other, which ends when the call ends, but there is no answer even after a certain time elapses from the called party. The SCM 1d controls this to send a ring to the ATC 2b of the voice mail system (VMS) 2 through the SLC 1d, and at the same time, the SCM 1d transmits the telephone number of the called party to the RS. Transmit to MPU (2d) through -232C communication port (8).

The ATC 2b that detects the ring through the above process off-hooks the phone under the control of the MPU 2d, and then voice information related to the message storage selection stored in the DKU 2c. Is sent to the sender.

For the voice information sent as above, the caller wants to save the voice and saves the message. After inputting the schedule DTMF and recording the message, if the user inputs the schedule DTMF which means the end of the recording, the service is terminated. Is sent to the DKU (2c) by the end of a series of processes, the receiver can check the recorded message later.

However, the branch exchange, which is equipped with a conventional voice mailbox system as described above, frequently calls the voice mailbox system 2 to check whether a call has been made to him or her when the called party is outside and cannot receive a call. There was a disadvantage that you can only know whether to record for this.

The present invention has been created to improve the above disadvantages, the caller can not receive the call in the absence of the caller to come to the destination when the message is recorded, so that you can be notified immediately, so that the caller of the caller In the case of fighting against this hourly wage, it is intended to be able to deal with it promptly.

1 is a schematic configuration diagram of a premises exchange system installed with a conventional voice mailbox system.

Figure 2 is a schematic diagram of the premises exchange with voice message notification function in the present invention.

3 is a flow chart showing the operational flow of the premises exchange according to the present invention.

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

1, 10 ............. Switcher 2, 11 ......... Voice Mailbox System

1a, 2b, 10a..ATC 3 ............. Public switched network

4 ............ Local phones 1b, 10b ....... SLC

1c, 10c ...... RMFC 1d, 10d ....... SCM

1e, 10e ...... DTC 5, 7 .......... analog interface

6, 12 ........ E1 / R2 2a, 2a ........ VPC

2c, 11c ...... DKU 2d, 11d ....... MPU

8 ............ RS-232C communication port 11b ........... NIC

13 ........... TCP / IP LAN Port

In order to achieve the above object, an on-premises exchange equipped with a voice message notification function according to the present invention comprises: an on-site exchange connected to a public circuit switching network and an on-premises telephone to exchange outgoing and incoming calls; A voice mail system including a network interface circuit connected to the branch exchange and occupying the channel of the branch exchange to inform the fact that a message is recorded while away, and a voice processing circuit arranged to send a contact number of the missed caller. Characterized in that made,

The notification method comprises the steps of: connecting the caller's outgoing signal to the called party's premises telephone; A call retrieval step of determining whether to be connected between the caller and the called party so that a call is made or whether the incoming call is not made for a predetermined time to move to the voice storage mode; A recording selection step of selecting whether to end or continue without leaving a voice according to the caller's judgment; A recording step of recording the voice message desired by the caller in a predetermined order; And a notification step of transmitting information on the voice message left by the caller to the missed caller.

2 is a schematic configuration diagram of a premises exchange having a voice message notification function according to the present invention.

Referring to FIG. 2, a configuration of an on-premises exchange with a voice message notification function is roughly divided into an on-premises exchange (PBX) 10 and a voice mail system (VMS) 11, and the on-premises exchange (PBX) 10 ) Is a digital trunk circuit (DTC, hereinafter referred to as DTC) using E1 / R2 (6) as a digital interface for receiving call detection and loop occupancy functions. 4) Subscribe Line Circuit (SLC, SLC) (10b) connected to control subscriber's incoming matters, and R2 signal which is a kind of number exchange method for exchanging telephone numbers. R2 Multi Frequency Circuit (RMFC) (hereinafter referred to as RMFC) that handles dual tone multi-frequency (DTMF, hereinafter referred to as DTMF) signal processing; System for controlling the whole system of the exchanger 10 It consists of a controller (System Control Module: SCM, hereinafter SCM) 10d.

However, even if the analog trunk circuit (ATC, hereinafter referred to as ATC) 10a in which the analog interface 5 is used instead of the DTC 10e is used, there is no difference in the essential effects of the present invention. .

In addition, the voice mailbox system 11 includes a voice processing circuit (VPC, hereinafter referred to as a VPC) 11a, which is responsible for voice guidance, DTMF detection, and transmission functions, and the premises exchange 10 and the digital. A network interface circuit (NIC) hereinafter connected to a digital interface 12 and serving as a function of processing a digital trunk and an R2 at the same time, and a sender A disc unit (Disku Unit: DKU) 11c, which is responsible for guiding the recording and storing the recorded data when the recording is to be performed, and a main processing unit for processing calls and data of a voice message system. (Main Processing Unit: MPU, hereinafter referred to as MPU.) 11d.

In addition, unlike the conventional RS-232C, a connection path between the SCM 1d of the branch exchange 1 and the MPU 2d of the voice mailbox system 2 to transmit / receive a protocol is used to increase the processing speed and reduce the error rate. / IP LAN port 13, which is connected to the DTC 10e of the branch exchange 10 and the NIC 11b of the voice mailbox system, unlike the conventional analog interface, increases the processing speed and reduces the error rate. E1 / R2 is used as the digital interface for this purpose.

In order to explain a method of operating an premises exchange with a voice message notification function according to the present invention having the configuration as described above, referring to a flow chart showing the operational flow of the premises exchange according to the present invention as shown in FIG. When the caller makes a call to the called party through the public circuit switching network 3, a signal is received by the DTC 10e of the premises exchange 10, and the ring goes to the called party via the SLC 10b (ST). 10).

If the ringer continues to ring but the answer is not answered because the called party is not in place, the ring continues to ring, and after the SCM 10d of the branch exchange 10 detects it and exceeds the predetermined time, the voice storage mode Control the MPU 11d by transferring the telephone number of the called party to the MPU 11d via the TCP / IP LAN port 13 while occupying the channel of the NIC 11b of the voice mailbox system 11; In response, the VPC 11a is used to send a message regarding the selection of the voice message storage previously stored in the DKU 11c to the caller (ST 20).

However, if the called party is in the seat and the caller answers the call within a certain time range, the call is made between the called party and the called party and the role of the branch exchange 2 is terminated (ST 30).

With respect to the above message, the caller decides whether or not to save the voice (ST 40). If the caller does not want to record the message, the service is terminated, and if the caller wants to record the message, it means to record the message. After inputting a certain DTMF, the user records a message to be communicated to the called party, enters a schedule DTMF to inform the end of the message, accepts it from the VPC 11a of the voice mailbox system, and terminates the service. It is stored in the DKU 11c (ST 50).

When the VPC 11a detects a certain DTMF regarding message termination and transmits it to the MPU 11d, the MPU 11d terminates an existing call and sends a message to send a new call to the TCP / IP LAN port. (13) transmits to the SCM (10d) of the local exchange 10, occupies the channel of the DTC (10e) through the NIC (11b), the mobile area telephone number or the number of the mobile phone previously stored by the receiver Is transmitted through the VPC 11a, and at this time, the branch exchange 10 makes a call connection with the PSTN 3 through the DTC 10e and sends it to the receiver (ST 60).

In the present invention, when there is a recorded message to the called party, the fact that the called party is notified will not be related to the fact of receiving a simple message or the actual recorded message or text message.

The branch exchange equipped with the voice message notification function according to the present invention as described above is recorded when the caller records the message when the called party does not answer the call on the called party's phone when the caller is away. As it can be seen, there is an advantage that can be taken care of immediately when the message is important.

Claims (4)

An on-premises exchange system connected to a public circuit switching network and an on-premises telephone, respectively, to exchange outgoing and incoming calls; A voice mail system including a network interface circuit connected to the branch exchange and occupying the channel of the branch exchange to inform the fact that a message is recorded while away, and a voice processing circuit arranged to send a contact number of the missed caller. On-premises exchange with a voice message notification, characterized in that made. The method of claim 1, Means for connecting the local exchange and the voice mailbox system include a TCP / IP LAN port provided for exchanging telephone numbers of called parties, and a digital interface for exchanging voice information between the voice mailbox system and the local exchange. On-premises exchange with a voice message notification, characterized in that the. A connection step of allowing the calling party's calling signal to be connected to the called party's premises telephone; A call retrieval step of determining whether to be connected between the caller and the called party so that a call is made or whether the incoming call is not made for a predetermined time to move to the voice storage mode; A recording selection step of selecting whether to end or continue without leaving a voice according to the caller's judgment; A recording step of recording the voice message desired by the caller in a predetermined order; And And a notification step of delivering the information on the voice message left by the caller to the missed caller. The method of claim 3, wherein The informing step may include detecting a certain signal in the voice processing circuit which the caller sends to notify the end of recording; Transmitting a signal detected by the voice processing unit to a main processing unit of the voice mailbox system; Terminating an existing call in the main processing unit and sending a signal to the premises exchange using the TCP / IP LAN port to send a new call to inform the caller of the recording of a voice message; Occupying a channel of the digital trunk circuit of the branch exchange via the network interface circuit; Transmitting a telephone number corresponding to the called party's current location through the voice processing unit; And And notifying the called party of the voice message recording to the public circuit switching network through the digital trunk unit.