KR19990041507A - How to Implement Citi on PC - Google Patents

Abstract

The present invention relates to computer telephone integration (CTI) in a personal computer (PC), and in particular, CTI in PC to transmit and receive high-speed data through a key phone network using a universal serial bus (USB) without structural changes. To an implementation method.

In the implementation of the conventional CTI system, the transmission and reception data in the PC is limited to the speed improvement since it depends on the host system and the digital keysets.

According to the present invention, by implementing a CPI function that can quickly transmit and receive data and voice from a PC to another PC through a key phone network using a super-speed USB without a structural change in the CTI implementation in a PC, the existing network without a separate network It is possible to construct a network having a high transmission speed by using a communication network.

Description

How to Implement Citi on PC

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to computer telephone integration (CTI) in a personal computer (PC), and in particular to a PC that transmits and receives high speed voice and data through a key phone network using a universal serial bus (USB) without structural changes It is related to the Citi implementation method.

There is a need to maximize the efficiency of information use by interlocking general PCs and telephone systems, and a technical approach for this is being made. CTI refers to all types of connections connecting the PCs and telephone systems.

The physical connection between the two systems is essential, and thus the application of the PC can request a phone-related service and track a call through the phone-related system.

There are two types of physical connections: a desktop connection, which is the connection between a user's PC and the user's phone line, and a server connection, which is a connection between the server system and the telephone system through a LAN.

In terms of functionality, the CTI connects the application software and the telephone system to automatically dial, call routing, auto pop-up of the information screen upon call entry, and call transfer. It offers advanced features such as Call and Data Tranfer, ANI-Automatic Number Identification, and the introduction of computer technology to save and restore voice, speaker recognition, voice recognition and fax. Additional functions such as interworking can be provided.

First, in terms of links, there are two ways to configure CTI, such desktop connections are typically suited to simple applications that support small users and single users, for example a telephone dialer. . In addition, since physical installation of a specific computer and telephone is required at each desk, problems such as materials and equipment may occur.

On the other hand, the server connection is effective when the group is medium or larger, and is suitable for a somewhat complicated type of application that requires services such as call tracking and conversion for the entire group. Can provide services. In addition, since most CTI server products share a computer system such as other server functions or applications, CTI operating in the same environment in an environment in which a data processing system is operated to secure flexibility in system configuration. Adopt a server.

Second, in terms of applications, the configuration of the CTI is usually implemented in the form of a client and server using an application programming interface (API). By introducing the concept of the client and server to the implementation of the CTI, the CTI system is implemented. The use of middleware has made significant strides in securing its scalability and stability.

Then, referring to FIG. 1, the CTI system includes a key phone system 11, a DTIB (Digital Telephone Interface Board) 12 in the key phone system 11, and a RS-232C transceiver. And a CTI module 13 for separating transmission and reception data and power lines for PC and power isolation, and supporting a protocol of two voice channels and one data channel structure. It consists of a digital keyset 14 and a PC 15.

The communication method between the key phone system 11 and the digital key set 14 has a structure of two voice channels and one data channel, and the voice channel operates at 2.048 (Mbps) and the data channel is 16 (Kbps). It works.

However, the data to be transmitted and received through the corresponding data channel could not be exceeded 16 (Kbps), and communication was performed by polling in the corresponding DTIB 12 once every 20 to 25 (ms). Since the communication speed between the digital keyset 14 and the PC 15 is implemented, however, the communication speed between the key phone system 11 and the PC 15 is extremely limited.

In addition, since the digital keyset 14 is provided separately and the PC 15 is installed, there is a disadvantage in that a lot of the installation area is required.

As such, in the implementation of the conventional CTI system, the transmission and reception data in the PC is limited to the speed improvement since it depends on the host system and the digital keysets.

In order to solve the inconvenience as described above, the present invention uses a high speed USB basically provided by the PC without structural changes, the high speed 2 ~ 10 (Mbps) from the corresponding PC to another PC through the key phone network By implementing a CPI function that can transmit and receive data and voice, and to configure a network having a high transmission speed using an existing communication network without a separate network, there is a base.

1 is a block diagram illustrating a typical CTI system.

2 is a block diagram illustrating a CTI system in a PC according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20: keyphone system 21: DTIB

30: PC 31: USB Port

32 USB Control Unit 33: Application for CTI

34: handset or earphone 35: microphone and speaker

40: DTIB Interface Board 41: USB Interface

42: data interface 43: voice interface

CTI implementation method in the PC according to an embodiment of the present invention for achieving the above object is to mount the DTIB interface board in the expansion slot of the PC, attach the handset or earphone and the microphone and speaker mounted on the PC It is characterized in that the CTI system is implemented by installing the program of the CTI application, and the CTI application uses one voice channel and one data channel of the DTIB protocol and the other voice channel via USB. It is characterized by using as an interface to transmit and receive data.

CTI system in the PC according to an embodiment of the present invention can be divided into the key phone system 20 and the PC 30, as shown in Figure 2, the key phone system 20 is DTIB 21 The PC 30 includes a DTIB interface board 40, a USB port 31, a USB control unit 32, a CTI application 33, a handset or an earphone. 34, the microphone and the speaker 35 are included. The DTIB interface board 40 further includes a USB interface 41 connected to the USB port 31, a data interface 42 connected to the CTI application 33, a handset or earphone ( 34) and a voice interface 43 connected to the microphone and speaker 35.

Here, the PC 30 installs the functions of the digital keysets 14 shown in FIG. 1, that is, the DTIB interface board 40 is mounted in a PC expansion slot and the handset or earphone is installed. And attach the 34 and use the microphone and speaker 35 mounted on the PC 30, and install the program of the CTI application 33 in the same manner as in the prior art.

A Citi implementation method in PC according to an embodiment of the present invention will be described as follows.

By using the USB port 31, which is basically supplied and supported by the PC 30, the transmission and reception speed of the data is increased to 2 to 10 (MHz), so that the network configuration can be changed from the line of the existing key phone system 11 shown in FIG. The USB port 31 is used as a port having high general purpose and compatibility by adjusting the number of pins.

That is, since the USB that connects the PC 30 and the key phone system 20 has a transmission speed of 2 to 10 (MHz), one of the DTIB protocols, which is a structure of two voice channels and one data channel, is used. By using the voice channel and one data channel as it is, the same function as the key phone is implemented in the application for CTI 33, and another voice channel remaining is interfaced through the corresponding USB to be used as a transmission / reception channel of data. It can improve to 2 ~ 10 (MHz) which is data transmission speed.

In addition, in the present invention, the existing CTI implementation consisting of the PC 15 and the digital keysets 14 as shown in FIG. 1 can be simplified by the key phone system 20 and the PC 30.

That is, the PC 30 installs the functions of the digital keysets 14 shown in FIG. 1, that is, the DTIB interface board 40 is mounted in a PC expansion slot and the handset or earphone is installed. And attach the 34 and use the microphone and speaker 35 mounted on the PC 30, and install the program of the CTI application 33 in the same manner as in the prior art.

As described above, by implementing the CPI function that can quickly transmit and receive data and voice from the PC to another PC through the keyphone network using a super-speed USB without a structural change in the implementation of the CTI in the PC according to the present invention, It is possible to construct a network with a fast transmission speed using an existing communication network without a network.

Claims (2)

Mount the DTIB interface board 40 in the expansion slot of the PC 30, attach the handset or earphone 34, and use the microphone and speaker 35 mounted on the PC 30, and use the CTI application 33 A CTI implementation method in PC, characterized in that the CTI system is implemented by installing a program. The method of claim 1, wherein in the CTI application 33, one voice channel and one data channel of the DTIB protocol are used, and the other voice channel is interfaced via USB to use as a transmission / reception channel of data. How to implement CTI in PC.