WO2007131456A1

WO2007131456A1 - An apparatus for the communication between the computer and the wired phone through the internet

Info

Publication number: WO2007131456A1
Application number: PCT/CN2007/070007
Authority: WO
Inventors: Lixin Yang
Original assignee: Lixin Yang
Priority date: 2006-05-12
Filing date: 2007-05-09
Publication date: 2007-11-22
Also published as: CN101072209A

Abstract

An apparatus for the communication between the computer and the wired phone through the internet arranges a speech server in the distributed user phone infrastructure in the environment of the user computer, user phone and the internet. The speech server includes a soft switch module, a multiple control points module and a gateway and gatekeeper unit for connecting the internet with the wired telephone network, wherein the gateway and gatekeeper unit includes a D/A conversion module, a data transmission module, an A/D conversion module, a speech compression and encoder module, a dynamic nonlinear compensation module, a mute detector module and an echo removing module. The apparatus for the communication between the computer and the wired phone through the internet of this invention solves the problem that the computer can't communicate with the prior telephone network directly. When the user views the homepage of the enterprise, the user can connect with the interphone of the enterprise through the internet, thus the bi-directional zero fee can be implemented, the efficiency that the user contacts the enterprise can be increased, and the telephone fee can be reduced.

Description

Device for communicating with a wired telephone via a computer via the Internet

Technical field

The present invention relates to the field of communication networks, and more particularly to a device for communicating with a wired telephone over a computer.

Background technique

With the development of network technology, the network is becoming an indispensable part of people's daily life, and the development of various Internet-based services is dazzling, one of the IP telephony technologies. The technological development of IP telephony is attributed to technology promotion and market drive. The first is the promotion of technology to IP telephony. After several years of technology accumulation, the price of the digital signal processor (DSP), which converts voice into the core component of IP telephony, is also greatly reduced. These undoubtedly prepare technical conditions for the practical use of IP. IP telephony has evolved from the early 1990s to the present, and has entered the era of IP telephony in the early days of IP telephony software. The current VOIP technology has also evolved from the initial products of PCs with voice services and limited to the internal scope of IP networks. To telecommunication services with voice, fax and data transmission functions with multi-service, high reliability and good service quality. Secondly, the driving of market interest is also an important reason for the rapid development of IP telephony. The VOIP network formed by gateways and other devices uses PSTN as the access of local users, and replaces expensive long-distance transmission networks with IP networks, which can greatly reduce the cost of communication lines. . The reduction in cost means that the price of the call is reduced and the user can directly benefit, so it is foreseeable that the future IP phone market potential will be huge.

The VOIP network communication industry entered a period of rapid development in 2005. The United States has designated 2005 as the VOIP year, which is promoted throughout the United States. In Europe, such as Germany, countries also promoted VOIP VoIP in 2005. Currently, VOIP VoIP communication The technology has gradually matured, and a considerable number of provinces and cities in China have already opened the service.

The traditional IP telephony service is that the IP telephony service provider is responsible for packaging the voice and putting it on the internet for transmission. The user must pay the local call charge before the package (0.11 yuan/minute, for example, the charge generated by pulling 17909) and the package on the internet. Transmission fee (0.3/min, both IP long distance calls). Although the traditional IP telephony service has reduced the cost of telephone calls, the cost of IP telephony is still a small expense for a busy business.

The network is a cheap means of transmitting data. If you can use the network to make calls, it will undoubtedly greatly reduce the cost of the enterprise. In the prior art, PC to PC can be implemented. PC to PC is also the voice transmission between the two phones over the network. This method is very common, 1995

VocalTec announced that Dialogic has partnered to produce the first telephone gateway (Gateway), which links the IP network to the traditional telecommunications network through a telephone gateway, making IP telephony more versatile, cheaper and more mobile. From the beginning of 1996 to the end of 1998, the telecom departments from life manufacturers to countries put their work on the production of IP phones, network construction and communication protocol development.

In China, China's VOIP service began to replace the traditional PSTN in long-distance telephone in 2003; According to IResearch, VOIP service will dominate the China Telecom long-distance telephone market in 2008, especially in the international long-distance PSTN will be completely VOIP Replace. There are two main business modes of operation in China. One is the virtual VOIP that relies entirely on the Internet. The main business forms are the voice chat function of voice chat room and instant messaging. The second is the traditional VOIP based on the telecommunication network. The main business form is IP telephony services provided by telecom operators. However, referring to Figure 3 and Figure 4, regardless of the system configuration, a core server or a cluster server must be provided in the network. Since direct communication is not possible, the efficiency of the contact is not high, and the telephone payment paid by the user is high. Nowadays, many companies have opened 800 free calls to facilitate room consultation and ordering. However, 800 free calls are all paid by the company, which is undoubtedly a huge expense for a busy company. If a user browses a company's homepage on the Internet, and can directly dial into the company's internal phone through the computer used by the user, it is a "zero call charge" for both parties, which will undoubtedly completely change the existing society. Communication method, greatly saving phone bills.

Summary of the invention

SUMMARY OF THE INVENTION The object of the present invention is to provide a communication device capable of improving communication efficiency and reducing telephone charges by directly communicating with a customer's telephone through the Internet in response to the defects and deficiencies in the prior art.

To achieve this, the present invention provides a computer for communicating with a wired telephone over the Internet, including a user computer, an internet, and a telephone exchange. In a distributed client telephone architecture, each node is provided with a voice server, and the voice server includes A softswitch unit, a multi-control point unit, a gateway and a gatekeeper unit connected to the Internet and a wired telephone network for data forwarding, a softswitch unit, a multi-control point unit, and a gateway and a gatekeeper unit are sequentially connected; a user computer transmitted through the Internet and The communication information between the customer's telephones is connected to the telephone exchange via the softswitch unit of the voice server, the multi-control point unit, and the gateway and gatekeeper unit.

The device of the invention communicates with the wired telephone through the Internet, wherein the gateway and the gatekeeper unit comprise: a digital/analog conversion module, configured to convert the analog signal of the voice into a digital signal transmitted on the Internet; and the data transmission module is configured to receive the user Request

An analog-to-digital conversion module for converting an analog signal into a voice signal. The device of the invention communicates with a wired telephone through the Internet, wherein the gateway and the gatekeeper unit further comprise: a voice compression coding module, configured to divide the voice signal into multiple data packets, at the same time, in different orders, different The port number is re-encoded to send a voice signal.

The invention relates to a device for communicating with a wired telephone via a network, wherein the gateway and the gatekeeper unit further comprise a dynamic non-linear compensation module for repairing the lack of a voice signal caused by the Internet transmission.

The invention relates to a device for communicating with a wired telephone via a network, wherein the gateway and the gatekeeper unit further comprise a silence detection module for rejecting the quiet signal to reduce the bandwidth occupied by the voice signal. The invention relates to a device for communicating with a wired telephone via a computer, wherein the gateway and the gatekeeper unit further comprise an echo cancellation module for eliminating echo interference to ensure call quality.

The device of the invention communicates with the wired telephone through the Internet is characterized in that: since the voice server is set, the user can directly access the internal telephone of the customer through the Internet when the user browses the homepage of the customer, thereby realizing the two-way zero call fee. , improve the user's contact efficiency with customers, while reducing the cost of the phone. DRAWINGS

1 is a system diagram of an apparatus for communicating with a wired telephone over the Internet by the computer of the present invention;

Figure 2 is a block diagram of the voice server of Figure 1;

3 is a system diagram of a computer communicating with a wired telephone through the Internet in the prior art;

4 is a system diagram of another computer in the prior art communicating with a wired telephone via the Internet. BEST MODE FOR CARRYING OUT THE INVENTION

The technical features and functional features of the present invention are further described in the following examples, which are intended to better illustrate the present invention, but are not intended to limit the scope of the present invention.

Referring to Figure 1, the apparatus of the present invention communicates with a wired telephone over the Internet, including a user computer, the Internet, and a telephone exchange, in which a voice server is provided at each node.

Referring to FIG. 2, the voice server includes a softswitch unit, a multi-control point unit, a gateway, and a gatekeeper unit for connecting the Internet and the wired telephone network, and the softswitch unit, the multi-control point unit, the gateway, and the gatekeeper unit. Connected.

The gateway and gatekeeper unit includes: a digital/analog conversion module for converting a voice analog signal to a digital signal transmitted over the Internet; a data transmission module for receiving a user request; and an analog/digital conversion module for transmitting the digital signal An analog signal that is converted to speech. a voice compression coding module, configured to divide a voice signal into multiple data packets, at the same time, not In the same order, different port numbers are re-encoded to send a voice signal. Dynamic nonlinear compensation module for repairing the lack of voice signals caused by Internet transmission. The silence detection module is configured to eliminate the quiet signal to reduce the bandwidth occupied by the voice signal. The echo cancellation module is used to eliminate echo interference to ensure the quality of the call.

The communication information between the user computer transmitted via the Internet and the customer's telephone is connected to the telephone exchange via the softswitch unit of the voice server, the multi-control point unit, and the gateway and gatekeeper unit. P2P technology is adopted in the data transmission process and is not forwarded by a third party. First, enter the softswitch unit, send an addressing request to the multipoint control unit, and send the request back to the softswitch unit. The multipoint control unit simultaneously guides the caller into the corresponding module of the gateway and gatekeeper unit (digital-to-analog conversion module, data). The transmission module, the analog-to-digital conversion module, the voice compression coding module, the mute control module, the echo cancellation module, and the dynamic non-linear compensation module) concurrently process the data, and enter the telephone exchange after the processing is completed.

In the case of using the computer of the present invention to communicate with a wired telephone via the Internet, the company only needs to connect the gateway and the gatekeeper unit in the voice server of the present invention to the Internet and the company's internal telephone network. When the computer user browses the company's webpage, if The company's business is interested, just click on the communication button on the web page to initiate a call, the data is transmitted to the voice server IP address via the Internet IP address, triggering the voice server, and the voice server will call the wired telephone of the department that the user requests to call, through the gateway, the network. The unit is connected to the network. When the user starts to talk, the computer used by the user converts the user's voice analog signal into a digital signal, which is transmitted to the gateway, the gatekeeper unit via the Internet, and the gateway and gatekeeper unit sends the signal to the digital/analog conversion module to be restored to analog. Signal, enter the telephone switch to complete the call, and then send the analog signal to the company's internal wired telephone. At the same time, the system can also perform the analog digital signal conversion process in reverse order. The voice signal of the company personnel received by the company's internal telephone is sent to the gateway and the gatekeeper unit through the analog/digital conversion module, and the gateway and the gatekeeper unit pass the Internet. The user's computer is restored to a voice signal, and both parties can communicate.

In order to ensure the security of the data, the preferred embodiment of the present invention is further provided with a voice compression coding module, which is used for compressing data into hundreds of data packets and re-encoding, that is, dividing the voice signal into multiple data packets, at the same time, different Sequence, different port numbers are re-encoded to send a voice signal. If the data is stolen while being transmitted over the network, since the thief has no way of knowing the encoding method and the data recombination method, the data cannot be restored to the voice signal, thereby ensuring the security of the communication.

In order to repair the lack of voice signals caused by Internet transmission, the present invention also provides a dynamic non-linear compensation module to ensure call quality.

In order to reduce the bandwidth occupied by the voice signal, the present invention is further provided with a silence detecting device to eliminate the silence signal and reduce the bandwidth occupied by the voice signal.

In order to improve the quality of the call, the present invention is also provided with an echo cancellation device for echo interference to improve the quality of the call. Industrial applicability

The device provided by the computer communicates with the wired telephone through the Internet, in the distributed user telephone architecture under the condition of the user computer, the user telephone and the Internet, wherein each node sets a voice server, and the voice server includes a soft switch module, and more a control point module and a gateway and gatekeeper unit, wherein the gateway and the gatekeeper unit are provided with a digital/analog conversion module for converting the analog signal of the voice into a digital signal transmitted on the Internet; and a data transmission module for receiving the user request; / digital conversion module, an analog signal used to convert digital signals into speech. After the voice server is added, the user can directly access the customer's internal telephone through the Internet when the user browses the customer's homepage, thereby achieving two-way zero call charges, improving the communication efficiency between the user and the customer, and reducing the telephone cost, so that the present invention The application prospects of the open technical solutions in network communication are very broad.

Claims

Rights request

What is claimed is: 1. A device for communicating with a wired telephone over a computer, comprising a user computer, an internet, and a telephone exchange, wherein in the distributed customer telephone architecture, each node is provided with a voice server, and the voice server includes a connection Softswitch unit for internet and wired telephone network for data forwarding, multi-control point unit and gateway and gatekeeper unit, softswitch unit, multi-control point unit and gateway and gatekeeper unit are connected in sequence; user computer and client transmitted via internet The communication information between the telephones is connected to the telephone exchange via the soft switching unit of the voice server, the multi-control point unit, and the gateway and gatekeeper unit.

2. The apparatus for communicating with a wired telephone over a computer according to claim 1, wherein the gateway and the gatekeeper unit comprise:

a digital/analog conversion module, configured to convert an analog signal of a voice into a digital signal transmitted on the Internet; and a data transmission module, configured to receive a user request;

Analog/digital conversion module, an analog signal used to convert digital signals into speech.

The device for communicating with a wired telephone over the Internet by the computer according to claim 1 or 2, wherein the gateway and the gatekeeper unit further comprise: a voice compression coding module, configured to divide the voice signal into multiple The data packet is re-encoded at the same time, in different orders, and with different port numbers to transmit a voice signal.

4. The apparatus for communicating with a wired telephone over a computer according to claim 3, wherein said gateway and gatekeeper unit further comprises a dynamic non-linear compensation module for repairing a voice signal caused by an Internet transmission. Missing.

The device for communicating with a wired telephone over the Internet according to claim 4, wherein the gateway and the gatekeeper unit further comprise a silence detection module, configured to reject the quiet signal to reduce the bandwidth occupied by the voice signal. .

6. The apparatus according to claim 5, wherein the gateway and the gatekeeper unit further comprise an echo cancellation module for canceling echo interference to ensure call quality.