KR910006064B1 - Trunk system - Google Patents

Abstract

The call-incoming service of the PABX is provided by the universal night answer (UNA) method in the day time and the jpredetermined night anser (PNA) method in the night time. The circuit comprises a micro-processor (10) controlling each circuit of the system, a memory (20) storing the system control program and the data, and an interface circuit (30) buffering the I/O of the microprocessor. The methods are switched by means for discriminating the converted code of the inner subswcriber, means for discriminating the port corresponding to the converted code, and means for sending the acknowledge signal after registering the port into the conversion table if the port is convertable one.

Description

Trunk Line Incoming Circuit and Method in Automatic Branch Exchange

1 is an overall block diagram showing a system of an automatic branch exchange.

2 is a detailed view of a memory table for the present invention.

3 is a flowchart illustrating a process of switching to a distributed relay method according to the present invention.

Figure 4 is a flow chart illustrating a process of switching to a night call in accordance with the present invention.

Figure 5 is a flow chart showing a service state connected when the first line in the present invention.

* Explanation of symbols for main parts of the drawings

10 microprocessor 20 memory section

30: interface 40: subscriber circuit

50: time switch 60: digital tone supply circuit

70: tone receiver 80: tone sensor

90: trunk line trunk 100: dedicated line circuit

110: repeater 120: lamp box

The present invention relates to a lamp box during the day in a PBX (Private Automatic Branch Exchange) system having a night call (Pna: Predeter, mind Night Answer) and a distributed relay (UNA: Universal Night Answer) system. The present invention relates to a trunk line incoming conversion circuit and a method of an automatic branch exchange that performs a service for notifying that a trunk line is received by a distributed relay method (UNA) using a box) and performs a service by a night tree (PNA) at night.

It is installed in the subscriber's premises and the service for the exchange connection between the trunk line and any station or station is performed by the automatic branch exchange (PABX). In this case, PABX system uses a relay station to connect to subscribers using a trunk line when receiving a call, a night call method to directly connect to a subscriber phone at night, and a decentralized type to notify a call using a lamp box. Like the relay method, three types of incoming calls are used. However, in the related art, since an automatic premises exchange system without a relay station is widely used, only one of a night call or a distributed relay method is used. In other words, in the case of the electronic night call method, since the CO line is directly received by a specific subscriber, it is efficient at night, but during the daytime, it is not convenient to use the centralized management when dealing with a large amount of activity. In the case of the latter distributed relay system, the centralized management is possible, so there are many convenience points in the daytime, but at the end of the day, a separate watch room must be operated.

The present invention is to solve such a problem, an object of the present invention is to enable the subscribers using the automatic branch exchange switch to change the distributed relay method and the incoming call at night by itself, more efficient and efficient at the incoming call It is an object of the present invention to provide a trunk line incoming circuit and a method for an automatic branch exchange that can obtain an in-service.

The purpose of this is to provide a conversion code supplied by the subscribers to change the night call method and distributed relay method, and the subscribers can receive the night call service, distributed relay method according to the method set as described above. It can be achieved as a means of receiving service, relay service.

A feature of the present invention is a system that does not include a relay stand that performs one of the following types of services: night call or distributed relay, including a microprocessor for controlling the operation of each circuit of the system, and a system operation control program and operation data. And a memory unit that is accessed by control of a processor and an interface that buffers and connects input / output data of the microprocessor.

Another feature is a means for identifying an extension code of an extension subscriber, a means for determining whether a port is convertible according to the conversion code, and means for giving a confirmation tone after recording to a conversion table in the case of a conversion port. And a means for converting to a distributed relay method, and a means for recognizing the presence of a relay station, whether or not a service is determined, and a value of a conversion table when a call arrives after setting up the conversion. It is a method of performing type relay service and relay service.

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

1 is an overall block diagram showing a system of an automatic branch exchange system, which includes a microprocessor (10) for controlling the operation of each block, and a memory unit for accessing system operation control programs and operation data by the control of the microprocessor (10). (20), an interface (30) for buffering and connecting the input and output data of the microprocessor (10), and supplying a voice current of a voice band to the telephone subscriber (STN) of an extension subscriber and interfacing between systems. A time switch 50 for multiplexing the digital tone and the voice data under the control of the subscriber circuit 40, the microprocessor 10, and sending data corresponding to the voice band to the corresponding time slot, and the micro Of the digital tone supply circuit 60 and the subscriber circuit 40 which generate various tone signals under the control of the circuit 60 and output them to the time switch 50; Tone receiver 70 for analyzing the dual tone generated from the subscriber station (STN) and inputting corresponding digit data to the microprocessor 10, and the duplex sound by the control data of the microprocessor 10. A trunk line trunk that generates a coaxial line loop and finds a trunk line loop connected to the tone sensor 80 to generate and codes and outputs the same, and outputs a signal received from the trunk line. 90) and the transmission processor under the control of the microprocessor 10, transmits a predetermined input signal, and transmits an incoming response signal (Seizure Acknowledge) according to the input signaling signal to interface the dedicated line between the trunk line and the trunk line. Dedicated line circuit 100 and the microprocessor 10 under the control of the subscriber, trunk line, dedicated line for the call Relay box 110 for performing the connection and various service functions, and the lamp box 120 to enable the state light that is connected to the subscriber or connected to the subscriber by the control of the microprocessor 10 is turned on through the lamp do.

Here, the extension subscribers (STN) may be shown in the order of the subscribers (STN.A) (STN.B) according to the number of subscribers.

」가 기록되어 국선착신시 이 메모리 테이블을 액세스하여 현재시스템의 국선착신상태가 서어비스 된다.2 shows a memory table according to the present invention. In a system that does not require the function of the present invention in a table PNASTN, which is a unit of memory (BYTE), " FF " is written to perform the function of the present invention. At this time, the port number of the extension subscriber can be recorded. In addition, the table PNAUNA, which is a one-byte unit of memory, is used for the conversion of the distributed relay method and the night incoming method. In the distributed relay method, FF is written to the table PNAUNA.

Is recorded and the memory system accesses this memory table and the current system's incoming / outgoing status is serviced.

The table PANSTN which records the port number of the subscriber station STN here, and the table PNAUNA where data about the distributed relay method and the night incoming method are recorded occupy a part of the area in the memory unit 20. Done.

3 is a flowchart illustrating a process of switching to a distributed relay method according to the present invention. When a general subscriber first picks up a handset and dials a conversion code (transcode code dialing step 3a), the port number of the subscriber and the table of FIG. 2 (PANSTN) Compared with the data recorded in the above), it is determined whether or not the convertible port is available in the convertible port presence / absence step 3B. If it is different from the recorded data, it outputs Not Use Tone, and if it is the same as the recorded data, it writes "FF" in the table PNAUNA of FIG. Is done.

」데이터를 기록한 후 가입자에게 확임을 부여하는 단계가 된다.4 is a flowchart illustrating a process of switching to the incoming call method according to the present invention, in which the general subscriber first picks up the handset and dials a cancel code applied to other functions. And the switching sound applying step 4b for confirming the function cancellation. Thereafter, the conversion code step is dialed, and the conversion code step 4c and the switching sound cutting step 4d are provided. This is a flow for recognizing the cancel function code termination when the conversion code is applied. A switchable presence / absence port step 4e, a conversion table step 4f, and a confirmation tone granting step 4g, which are means for determining whether or not a conversion port is available for identifying an extension subscriber who can change the next incoming call method. Therefore, after the switching tone is cut off, if the comparison is made with the port number of the station subscriber and the data recorded in the table (PNASTN), the ring tone step (4h) is performed and the ring tone is sent, and the table (PNAUNA) is the same as the data. )

After recording the data, the subscriber is given a confirmation.

FIG. 5 is a flowchart illustrating a service state connected when a call arrives in the present invention and is performed as means for recognizing relay presence, service presence, and conversion table values. That is, when a signal is first supplied through the trunk line, it is determined whether the relay station is connected to the corresponding trunk line port at the relay station presence or absence step 5a. When the relay station is connected, the service state is determined by the service presence or absence step 5b to perform the relay station service step 5f and the night call reception service step 5e. When the relay station is not connected, the distributed table service step 5d and the night call method service step 5e are performed by comparing the data stored in the table PNAUNA in the conversion table step 5c. When the data value is "FF", the lamp of the lamp box 120 that is already installed according to the distributed relay method blinks to enable subscribers to dial the CO line response code and the data value is not "FF". In this case, the call will be delivered to the subscriber designated by the night call.

In the following description of the operation of the present invention, if a subscriber in the premises (the subscriber who can change the call as the subscriber) is holding his own subscriber telephone (STN.A) having port number 281 (when hooked off), the subscriber circuit is operated at regular intervals. The hook-off state of the subscriber subscriber STN.A is sensed by the microprocessor 10 scanning 40. At this time, the microprocessor 10 outputs the switching control signal to the time switch 50 and the dial tone control signal to the digital tone supply circuit 60 by the data of the operation system program read from the memory unit 20, respectively. Designate a channel of the subscriber subscriber (STN.A) of (40) and supply a dial tone to the receiver channel of the subscriber (STN.A).

When the subscriber (STN.A) listening to the dial tone as described above presses the conversion code to switch from the current night call scheme to the distributed relay method, the flowchart shown in FIG. 3 is performed. When the conversion code " 74 " is dialed in the conversion code dialing step 3a of FIG. 3, the dialing digit signal is input to the tone receiver 70, and is converted into digital data by the operation of the tone receiver 70. It is input to the microprocessor 10 through 30.

When the dialing digit digital data of the subscriber subscriber (STN.A) analyzed by the tone receiver (10) is input, the microprocessor (10) analyzes it and converts the port of the subscriber (STN.A) in the convertible port step (3b). The number " 28 " and the data contents of the table PNASTN in Fig. 2 are compared, and in the case of a difference, the sound tone step 3e is executed, and the microprocessor 10 sends the sound tone control signal to the digital tone supply circuit 60. Will be printed. If the port number and data match, the conversion table step 3c is executed, and the microprocessor 10 writes the hexadecimal value "FF" to the table PNAUNA, and then proceeds to the next confirmation tone granting step 3d. It is passed. In this step, the microprocessor 10 controls the digital tone supply circuit 60 to supply the confirmation sound to the receiver of the subscriber station STN.A. Notifies the subscriber (STN.A) that the conversion of the distributed relay method has been completed.

」값이 기록되도록 마이크로프로세서(10)가 동작하고 확인음부여스텝(4g)과정에서 디지털톤 공급회로(60)를 제어하여 확인음을 송출시켜 내선가입자(STN.A)가 확인할 수 있게한후 야간 착신방식으로의 변환과정이 종료하게 된다.여기서 메모리 테이블에 기록되는 변환코오드「

」은 프로그램상에서 원하는 16진수값으로 다르게 설정시킬 수 있다.As described above, in order to switch back to the night calling mode in the state where the trunk line incoming method is converted to the distributed relay method, the subscriber joins the receiver and proceeds in the flow chart as shown in FIG. 4 after listening to the dial tone as described above. do. If the conversion cancel code "79" is dialed and input after the previously performed function cancel code step 4a, the input digit signal is analyzed by the microprocessor 10 to analyze the switching sound control signal in the digital tone supply circuit 60. Output at the switching sound supply step 4b. After the extension subscriber STN.A confirms the switching sound, when the conversion code `` 4 '' dialed in the conversion mode step 4c is inputted, the flow advances to the next step, and the switching sound is cut in the switching sound cutting step diagram 4d. The port number " 28 " of the subscriber dialed in the convertible port step 4e and the data value recorded in the table PNAUNA in Fig. 2 are compared with each other. If and the data values match, the next conversion table step 4f is executed to the memory table PNAUNA.

The microprocessor 10 operates to record the " value, and the digital tone supply circuit 60 is controlled in the confirmation tone giving step (4g) to send a confirmation sound so that the subscriber (STN.A) can confirm. The conversion to the incoming call method at night ends, where the conversion code recorded in the memory table

Can be set differently to the desired hexadecimal value in the program.

In this way, when the CO line input signal is supplied through the trunk line trunk 90 in the state of being converted into the distributed relay method or the night incoming method by the subscriber, the internal subscriber (STN.A) converts the signal input through the interface 30 into a micro The processor detects and operates in the flow chart sequence shown in FIG. That is, when the trunk line incoming step 5 proceeds in FIG. 5, the relay station presence / absence step 5a determines whether there is a relay station, and whether the trunk line port is capable of relay station service. When the relay station is connected, the microprocessor 10 detects whether the relay station is in service at the service presence step 5b through the interface 30, and performs the relay station service step 5f when the relay station is in service. The trunk line incoming service is executed by sending a trunk line input signal to 110 to turn on the loop lamp of the repeater. Although there is a relay station, in the night service state, the microprocessor 10 transmits a ring signal directly to the designated subscriber by processing from the relay station service step 5b to the night call type service step 5e and processing it by night call method. The incoming service will be performed. If it is determined that the relay station is not connected in the relay step presence or absence step 5a, the microprocessor 10 reads the contents of the memory table PNAUNA in FIG. 2 and determines whether the data is "FF". If the data value is not "FF", the incoming call service is performed at night. If the data value is "FF", the distributed relay service step 5d is performed to interface the microprocessor 10 with the interface. By inputting the CO line input signal to the lamp box 120 through 30 to turn on the lamp of the CO line to perform a distributed relay service of the notification that the CO line is received.

As described above, the present invention enables the user to easily switch the trunk line incoming method through the telephone of the subscriber of the internal subscribers, so that it can be switched to the night incoming method at night by the distributed relay method during the day, thereby improving the efficiency of the automatic branch exchange. At the same time, it is effective to receive services that are diversified in function.

Claims (5)

Non-relayed system that performs service by either PNA or distributed relay (UNA) as follows: Interface between systems while supplying voice band call current to station subscriber (STN) telephone And a subscriber circuit 40 which performs a multiplexing of digital tones and voice data, and a time switch 50 for transferring data corresponding to a voice band to a corresponding time slot, and generates various tone signals and outputs them to the time switch 50. A digital tone supply circuit 60 and a tone receiver 70 for dividing a double tone generated from an internal subscriber (STN) of the subscriber circuit 40; and a tone sensor 80 for generating a double tone. Trunk trunk trunk 90 that connects incoming signals from trunk lines by forming trunk line loops: Sends incoming signal to dedicated line and responds to incoming signal by signaling signal. Dedicated line circuit 100 for interfacing the dedicated line between the CO line and the CO line by sending the wires: and the relay station 110 for performing various services and connection for the call of the subscriber, CO line, leased line, etc. In a circuit composed of a lamp box 120 and a state indicating a state, a microprocessor 10 for controlling the operation of each circuit and a system operation control program and operation data are controlled by the microprocessor 10. And a memory unit (20) for access and an interface (30) for buffering and connecting the input / output data of the microprocessor (10). The memory unit (PNASTN) according to claim 1, wherein the memory unit (20) includes a memory table (PNASTN) having an area in which the port number of the station subscriber (STN) is recorded, and a table in which data about night call reception and distributed relay methods are recorded ( Trunk line incoming and outgoing conversion circuit of automatic branch exchange system composed of PNAUNA). Means for identifying a conversion code of an extension subscriber (STN.A), means for determining whether or not a port is convertible according to the conversion code, and means for giving a confirmation sound after recording to a conversion table in the case of a conversion port. Allow the extension subscriber to process the incoming call and the distributed relay method slightly, and include the incoming call at night by the above means, including means for recognizing the presence of relay stand, service, and conversion table values when the first call arrives. A trunk line incoming / outgoing method for an automatic branch exchange that performs a system service, a distributed relay service, and a relay service. 4. The night call forwarding is performed after the conversion code dialing step 3a to perform the convertible port presence step 3b to record the nightly incoming data in the convertible porty memory table PNAUNA, and confirm the confirmation sound. A trunk line incoming / outgoing conversion method of an automatic branch exchanger which performs the grant step (3e) when the grant step (3b) is performed and the non-convertible port is performed. 4. The conversion of the distributed relay method is performed by performing the function cancel code step 4a so that the switching sound cutting step 4b is preceded and the switching sound cutting step 4d is preceded by the conversion sound code step 4b. After performing the convertible port presence step 4f, the distributed relay data is written to the convertible port memory table PNAUNA, and the confirmation sound giving step 4g is performed. CO line transfer method of an automatic branch exchange.

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