KR0157390B1 - Apparatus and method for merging telephony and data of isdn switching system - Google Patents

Abstract

The present invention relates to an ISDN switch, and more particularly, to an ISDN switch capable of performing integrated processing of telephone voice communication and PC data without installing a local area network (LAN) or a server.

In the present invention, the ISDN exchange performs a telephone call function and a data transmission / reception function through a single station number without installing a LAN or a separate server, so that voice calls, facsimile communication, and text communication can be collectively processed. With the development of the PC, it is possible to efficiently possess various functions that the PC terminal will provide in the future, so that a good intelligent network can be constructed to execute more advanced call processing functions.

Description

Integrated telephone / data processing device of ISDN exchange and its method

1 is a block diagram showing a connection with a LAN in a conventional ISDN switch.

2 is a block diagram of a device for integrated telephone / data processing in an ISDN exchange according to the present invention.

3 is a detailed block diagram of an ISDN packet handler in the present invention shown in FIG.

4 is a hierarchical configuration diagram for realizing the telephone / data integration processing method in the present invention shown in FIG.

5 is a flowchart for realizing a telephone / data integration processing method in the present invention shown in FIG.

* Explanation of symbols for main parts of the drawings

100: private exchange 110: ISDC (ISDN S-Interface Card)

120: IPC (Inter Processing Controller)

130: Main Processor Moudle

140: Queue

150: ISDN Packet Handler

151: input queue handler 152: X.25 packet handler

153: functional message handler 154: first output queue handler

155: second output queue handler

The present invention relates to an ISDN exchange, and more particularly, to the telephone / data integration of an ICDN exchange, which enables the integrated processing of telephone voice calls and PC data without installing a local area network (LAN) or a server, which is a local area network. It relates to a processing apparatus and a method thereof.

In the conventional ISDN switch, as can be seen in FIG. 1 of the accompanying drawings, a private switch 10, a local area network LAN 30, and the private switch 10 and the LAN 30 are connected and received. A server 20 for interfacing the data is provided to perform telephone voice calls and call processing of data. The private exchange 10 connects and transmits and receives the MPM 14, which controls the overall operation of the call processing, such as connection to a telephone line, the trunk line connection unit 11, which connects the telephone line of the trunk line, and the terminal of the station subscriber. IPC for interfacing the voice call signal and data signal transmitted / received between the subscriber circuit section 12 for interfacing the signal and data signals, and the MPM 14 and the trunk line connecting section 11 or the MPM 14 and the subscriber circuit section 12. (Inter Processing Controller: 13) and the PCU (Packet Control Unit: 15) for processing data signals transmitted and received by connecting the server 20 and the MPM 14 through an X.25 packet network, the server 20 And LAN 30 are connected to a transmission medium configured in the form of a bus and connected by Ethernet to communicate using a CSMA / CD protocol.

Referring to the operation of the busy call processing of the subscriber in the conventional ISDN exchange as described above are as follows.

The station subscriber off-hooks the handset means of the terminal, occupies the station with the private exchange 10 through the subscriber circuit unit 12, and inputs a predetermined telephone number for the terminal of the counterpart to be called using the key input means. The MPM 14 recognizes the telephone number of the counterpart terminal applied through the IPC 13 from the subscriber circuit unit 12 and analyzes the state of the corresponding terminal. At this time, if it is determined that the state of the other terminal is busy, the corresponding message is applied to the PCU 15 side. The PCU 15 processes the message for the busy from the MPM 14 and applies it to the server 20 through the X.12 packet network. The server 20 converts the message data on the call, which is authorized through the X.25 packet network, into an Ethernet message that can communicate with the LAN 30, and applies it to the PC terminal of the other party in the call. According to the signal applied from (30), it displays to the operator of the PC terminal that the call connection is waiting. On the monitor of the PC terminal, the phone number, name and personal information of the subscriber who requested the call connection are displayed.

Then, the operator of the PC terminal uses a key input means to transmit busy busy tone to the subscriber terminal requesting a call connection according to the message displayed on the monitor, or to output a predetermined message. Upon inputting the signal, the PC terminal converts the operator's message into an Internet message in the reverse order of the above-described operation and applies it to the server 20 via the LAN 30.

The server 20 converts the operator's message attached to the PC terminal into a form suitable for transmission through the X.25 packet network and applies it to the subscriber terminal requesting the call connection through the private exchange 10.

In order to transmit the recorded voice of the operator of the PC terminal to the subscriber terminal requesting the call connection, a separate VPS (Voice Processing Server) must be installed. At this time, in the case of voice communication, the data is connected by the address system of the LAN 30, and since the voice is called through the general telephone number, the electronic mail and the telephone call are called through different paths.

In addition, in the case of facsimile (facsimile), a facsimile terminal must be installed separately or a facsimile server must be installed, and to install such a terminal must have a separate telephone number.

As described above, in the case of installing a telephone / data communication network using a LAN in a conventional ISDN exchange, each server for call processing is required along with the installation of a LAN, which requires a lot of cost and increases installation costs. There is a problem in that the telephone and the PC terminal equipment exist in duplicate, and each must have a telephone number separately, and thus, the telephone call function and the data transmission / reception function can not be integrated and performed consistently.

In addition, in the related art, since the telephone and the PC terminal are separately connected and installed, there is a problem in that an improved intelligent network cannot be constructed because the PCs cannot efficiently possess various functions to be provided by future PC terminals. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and its object is to provide a voice by consistently integrating a telephone call function and a data transmission / reception function through a single phone number without installing a LAN or a separate server in an ISDN exchange. It can handle calls, facsimile communication, text communication, etc. collectively, and it is possible to execute more advanced call processing function by constructing intelligent network according to the development of PC.

A feature of the present invention for achieving the above object is, in the ISDN exchange, the MPM for controlling the call processing operation for the call path of the exchange and the overall operation for the transmission and reception of X.25 packets, and the control signal of the MPM IPC which controls the interfacing of the data transmitted and received according to the above, and is connected between the IPC and the ISDN subscriber station through 2B + D channel for data such as setup message and data for X.25 packet. An ISDN for transmitting and receiving data requesting a call connection, a queue for delivering X.25 packets to and from the MPM, and an X.25 packet applied through the queue from the MPM to the MPM side through the queue. And an ISDN packet handler for establishing a call connection to a receiving terminal while outputting a message and outputting a message to the IPC side.

In addition, another aspect of the present invention provides a method for accessing an ISDN switch, in which a predetermined subscriber edits a predetermined document using his terminal and designates a telephone number of each receiving terminal requesting broadcast transmission. A first process of connecting the private exchange side with the B-channel through the D-channel of the designated telephone number when the transmission key signal is input, converting the edited document into an X.25 packet, and transmitting it to the private exchange side; A second step of determining whether a function message for call processing exists by analyzing the received message when the MPM receives a request message for a function connection from a predetermined subscriber station after executing the first step; When a function message for call processing is detected in the determination of the second process, a predetermined call control message is formed through a function message handler and then transmitted to the MPM side. In the third process, the MPM receiving the call control message in the execution of the third process outputs a predetermined message from the subscriber station designated by the caller terminal, and if the function message is not detected in the second process, the MPM receives the call control message. And a fifth step of forming an X.25 packet and outputting the packet to a terminal of a designated subscriber.

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

FIG. 2 is a block diagram of an integrated telephone / data processing apparatus in an ISDN exchange according to the present invention. FIG. 3 is a detailed block diagram of an ISDN packet handler in the present invention shown in FIG. 2, and FIG. 4 is shown in FIG. It is a hierarchical block diagram for realizing the telephone / data integrated processing method in the present invention.

5 is a flowchart for implementing the telephone / data integration processing method in the present invention shown in FIG.

As can be seen in Figure 2 private exchange 100 according to the present invention, ISDC (ISDN S-Interface: 110), IPC (120), MPM (130), queue (Queue: 140), ISDN packets It is composed of a handler 150, ISDC 110 is connected to a terminal such as ISDN telephone 300 and ISDN PC terminal via the ISDN subscriber card in 2B + D channel, data for call connection, such as setup (SETUP) message Send and receive data for X.25 packets and function messages requesting specific call connections over the X.25 packet network. The MPM 130 controls overall operations such as call processing and data transmission and reception for accessing a call. The IPC 120 controls the interfacing of data transmitted and received through the ISDN 110 according to the control signal of the MPM 130. The queue 140 delivers X.25 packets input and output to the MPM 130.

The ISDN packet handler 150 analyzes the data applied through the queue 140 to determine the output direction of the processed data, which can be seen in FIG. 3 as an input queue handler 151 and X. A packet hander 152, a function message handle 153, a first output queue handler 154, and a second output handler 155.

When the X.25 packet is applied from the MPM 13, the input queue handler 151 applies the X.25 packet to the X.25 packet handler 152 side according to a predetermined frame period. The X.25 packet hander 152 analyzes and processes the authorized X.25 packet and, in the case of a message for general call processing (that is, a message for performing a function such as a general subscriber call), first output queue handler. By outputting to the IPC 120 side through the 154 to output a predetermined ring to the receiver terminal connected to the ISDN 110, in the case of an X.25 packet containing a function message related to a specific function, the function message handler ( 153). The function message handler 153 analyzes and processes the authorized X.25 packet, generates a call control message for performing a call processing corresponding to the contained function message, and sends the MPM (2) through the second output queue handler 155. 130 to perform the call processing function related to a specific function by outputting to the side, and transmits the data to be output to the ISDN PC terminal to the ISDN PC terminal by directly transmitting to the IPC 120 through the first output queue handler 154 Will output

In addition, as can be seen in Figure 4, the hierarchical block diagram of the telephone / data integration processing method according to the present invention, voice recognition of the voice mailbox, facsimile mailbox, document to the application layer of the seventh layer of the ISDN PC terminal and It sets up a function for voice recognition, which can be processed by the D-channel signal and the D-channel packet signal, and the stored voice message can be transmitted through the B-channel which is a general telephone line. The ISDN API, which is processed by the signals of the B-channel and the D-channel, is set in the presentation layer, which is the sixth layer, and the function control means that is processed by the packet signal of the D-channel is set. Further, a general third layer processed by the D-channel signal and an X.25 packet processed by the packet signal of the D-channel are set in the network layer which is the third layer. In the data link layer, which is the second layer, a LAP-D (Link Access Protocol-D channel) that can be processed by a D-channel signal and a D-channel packet signal is set. The physical layer, which is the first layer, is set to a general function.

Also, in the application layer, which is the seventh layer of the ISDN private exchange, the function set in the seventh layer of the ISDN PC terminal is set to be processed only by the packet signal of the D-channel, and is processed only by the signal of the D-channel. Set the call control means. Thereafter, the sixth layer, the third layer, the second layer, and the first layer are set in the same manner as the function set in the ISDN PC terminal.

The call connection operation of the present invention having the function as described above will be described with reference to FIG. 5 as a flowchart.

In one embodiment, when the ISDN PC terminal used by a particular subscriber is used to send a message to a group of members in a predetermined place to conduct a meeting by using an ISDN PC terminal used by a specific subscriber, the user of the ISDN PC terminal may use his ISDN before heading to the conference room. If you want to have a meeting using a PC terminal, you can edit the message to send all group members to the meeting room immediately, set the terminal number of the group member to be sent, and enter the transmission key signal (step 101). The PC terminal uses the first D-channel protocol signal of the designated terminal number to connect the channel through the B-channel with the private exchange 101 side (step 102), and then sends a message requesting broadcast transmission and a group member to be transmitted. After setting the function message to be designated according to the protocol set in FIG. Through the D-channel data to the ISDN 110 side of the private exchange 100 (step 103). Then, when the MPM 130 receives the D-channel functional request message from the ISDN PC terminal through the ISDC 110 (step 104), the MPM 130 sends a functional request message set in the received X.25 packet. By analyzing (step 105) and applying an X.25 packet to the ISDN packet handler 150 side through the queue 140, the corresponding X.25 packet is passed through the input queue handler 151 of the ISDN packet handler 150. 25 is sent to the packet handler 152. At this time, the X.25 packet handler 152 analyzes the received X.25 packet and determines it as an X.25 packet including a function message (meeting progress message) (step 106), and transmits it to the function message handler 153. do. At this time, the functional message handler 153 recognizes the broadcast transmission request and the receiver from the functional message included in the authorized X.25 packet, generates a call control message (step 107), and then outputs the second output queue handler 155. (Step 108), the MPM 130 receives the receiver connected to the ISDC 110 through 120 according to the call control message applied from the second output queue handler 155. Outputs a predetermined ring to the ISDN PC terminal of the receiver, extracts only the conference set related transmission message included in the function message, and outputs it to the IPC 120 through the first output queue handler 154 to the receiver terminal. Sends out the contents of the document authorized by X.25 packet to voice and informs the user of the receiving ISDN PC terminal through the B-channel. Transferred to a PC terminal Read at the subscriber's option and display on the monitor.

If the function signal is not included in the signal applied in the determination of step 106, the X.25 packet handler 152 of the ISDN packet handler 150 forms an X.25 packet for general call processing (step 109). When applied to the IPC 120 side through the first output queue handler 154, the IPC 120 outputs an X.25 packet for call processing to the ISDN PC terminal of the receiver through the ISDC 110, and then to the user. Notify

That is, in the present invention, the ISDN telephone and the ISDN PC terminal are installed in one phone number, and the telephone call function and the data transmitting / receiving function are integrated and performed. When the ISDN PC terminal performs only general call processing for notifying an incoming call, As described above, the X.25 packet handler 152 of the ISDN packet handler 150 forms an X.25 packet for general call processing and applies it to the IPC 120 side through the first output queue handler 154. 120) and an X.25 packet for call processing through the ISDN 110 to the receiving terminal to notify the user of an incoming call and to provide a specific function for transmitting a transmission message to the ISDN PC terminal. As described above, the X.25 packet handler 152 of the ISDN packet handler 150 applies the X.25 packet containing the functional message to the functional message handler 153, and the functional message handler 153 is applied to the X.25 packet handler 152. .25 By analyzing and processing the packet, it generates a call control message for performing a call processing corresponding to the contained function message and outputs it to the MPM 130 through the second output queue handler 155, so that the MPM 130 has a specific function. The ISDN PC terminal transmits a message to the ISDN PC terminal by sending a message to the ISDN PC terminal by transmitting a message to the ISDN PC terminal through the first output queue handler 154 directly to the IPC 120. Output

In addition, in the case of providing a telephone call function for the ISDN telephone, if an outgoing message authorized from the ISDN telephone is input to the MPM 130 through the ISDN 110 and the IPC 120, the MPM 130 transmits the corresponding outgoing message. Telephone control function for ISDN telephone by controlling the normal switching means (not shown in the figure) provided in the private exchange 100 itself to set up a communication path and then transmitting a voice signal through the corresponding communication path. To provide.

As described above, the present invention integrates a telephone call function and a message transmission / reception function through a single phone number without performing a LAN or a separate server in an ISDN exchange, thereby performing voice calls, facsimile communication, and text communication. Etc. can be processed in a batch, and according to the development of the PC, it is possible to efficiently possess various functions that will be provided by the PC terminal in the future.

Claims (4)

In the ISDN exchange, the MPM is configured to control call processing operations for the call path of the exchange and overall operations of the transmission and reception of X.25 packets, and an IPC which controls the interfacing of data transmitted and received according to the control signals of the MPM. And an ISDN connected between the IPC and the ISDN subscriber station through a 2B + D channel to transmit and receive data for a call connection, such as a setup message, data for an X.25 packet, and data for requesting a specific call, and the MPM. Analyzes the queue delivering X.25 packets to be input / output, and the X.25 packets applied from the MPM through the queue, and outputs a message to the MPM side through the queue and outputs a message to the IPC side. And an ISDN packet handler for establishing a call connection with respect to the ISDN exchanger. The method of claim 1, wherein the ISDN packet handler is an input queue handler for inputting and outputting an X.25 packet from the MPM through the queue according to a predetermined frame period, and outputs the authorized message to the IPC side. A call for performing a call processing corresponding to a function message contained by analyzing and processing a first output queue handler, a second output queue handler which outputs an authorized message to the MPM side, and an authorized X.25 packet. A control message is generated and output through the second output queue handler to perform a call processing function related to a specific function, and transmission data to be output to the subscriber terminal is output through the first output queue handler to transmit transmission data to the subscriber terminal. It analyzes the function message handler to output and the X.25 packet data applied from the input queue handler to handle general call processing. If the message is output through the first output queue handler to output a predetermined ring to the receiver terminal connected to the ISDC, if the X.25 packet containing a function message related to a specific function, the function message handler A telephone / data integrated processing device for an ISDN exchanger, comprising: an X.25 packet handler output to the side. In the ISDN exchange call connection method, if a predetermined subscriber edits a predetermined document using his terminal and inputs a transmission key signal by designating a telephone number of each receiving terminal requesting broadcast transmission, the designated telephone number The first process of connecting the private exchange side and the B-channel communication path using the D-channel of the first channel, converting the edited document into an X.25 packet, and transmitting the converted document to the private exchange side; When the MPM receives the request message for the function connection from a predetermined subscriber station, a second process of analyzing the received message to determine whether there is a function message for call processing, and call processing in the determination of the second process And a third process of forming a predetermined call control message through a function message handler and transmitting it to the MPM when a function message for the function message is detected. The MPM, which receives the call control message in the line, outputs a predetermined message from the subscriber station designated by the calling party terminal, and forms a predetermined X.25 packet if the function message is not detected in the second process. And a fifth process of outputting to a terminal of the ISDN switch. 4. The method of claim 3, wherein the call control message is formed according to a function set in a seventh layer, which is an application layer.