CN101699832A

CN101699832A - Ip telephone network

Info

Publication number: CN101699832A
Application number: CN200710158834A
Authority: CN
Inventors: 殷跃军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-12
Filing date: 2007-12-12
Publication date: 2010-04-28

Abstract

The invention relates to an IP telephone network, which relates to an IP telephone of a wideband IP network. The invention aims to provide a novel high-quality IP telephone of the wideband IP network to solve the problems of the IP telephones of a narrowband IP network. The invention adopts a technical scheme that: the IP telephone of the wideband IP network mainly comprises a micro controller, memories, a transmitter, a receiver (decoder), a control circuit and the like; the control circuit is connected with an external wire through a polarity reversal circuit; the telephone is connected with the transmitter and the receiver through the control circuit so as to transmit signals; the control circuit transmits offsetting, off-hook and dialing signals input by the telephone to the micro controller; and the micro controller is connected with an RAM memory and an ROM memory.

Description

IP telephony network

Technical field:

The present invention relates to a kind of IP phone that is used for wideband IP network.

Background technology:

At present, IP phone grows up on the arrowband IP network.It utilizes the IP phone gateway, the plain old telephone conversion of signals is become the IP packet after, on IP network, transmit.Because IP phone converts analogue voice signal to the IP packet, transmits on IP network, the conventional telecommunications net is not monopolized a talk channel like that for another example, thereby the expense of IP toll telephone is declined to a great extent.But along with the popularizing of the range of application of IP phone, user's increase and developing rapidly of multiple business, the shortcoming of the IP phone of arrowband IP network itself reveals day by day.At first, in the IP phone of arrowband IP network, when making a phone call, still need dial plain old telephone earlier,, send through IP network again by the processing of service provider by gateway to IP phone service provider owing to the user.This mode is that in fact just the road part utilized IP network, and the user still needs to use plain old telephone, so IP phone expense cheap advantage in arrowband just just embodies in toll telephone.Secondly, because the fast development of communications industry in recent years, telephone subscriber and business rise year by year, and present arrowband IP network can't bear the heavy load to the growing of data flow, and consequently the speech quality of this IP phone is inferior to plain old telephone, make the user be difficult to accept.Meanwhile, development of internet technology is just promoting the construction of network infrastructure, can carry out the different types of data transmission simultaneously, wideband IP network with high speed data transfer ability comes into effect in comprising many countries of China, correspondingly produced multiple consumer wideband IP access way, this will provide the good basis environment for the high-quality IP phone that is better than plain old telephone tonequality.

Summary of the invention:

The objective of the invention is,, provide a kind of high-quality IP phone of wideband IP network of novelty at the problems referred to above that the IP phone of arrowband IP network exists.

Technical scheme of the present invention is, the IP phone of wideband IP network comprises: mainly be made up of microcontroller, memory, transmitter, receiver (decoder), control circuit etc., control circuit is connected with outside line by polarity transformation circuits, phone connects transmitter, receiver by control circuit, carries out the signal transmission; Control circuit is sent into microcontroller to the resetting of phone input, off-hook, dialing signal; Microcontroller connects RAM memory and ROM memory.Be used to gather the microphone of voice signal, be used to play the earphone of voice signal, be used to provide the panel of functions such as dialing, this IP phone also comprises: sampling module, be connected with described microphone, being used for the voice signal from microphone is digital signal by analog signal conversion; The D/A switch module is connected with described earphone, will be converted to analog signal from the digital signal of described IP network; Simulation ring dialing tone module is connected with described earphone and described panel, is used to produce simulated audio signals such as ring back tone, dialing tone, busy tone; The compressing and decompressing audio file module is connected with described sampling module, described D/A switch module, is used to carry out the full-duplex audio compression, decompresses.

The invention has the beneficial effects as follows and have convenient memory, simple operation and other advantages.In the time of the dialing of agreement letter off-hook, the decoder of dialer is decoded to the signal that telephone set sends, and gives after the decoding to make controller and handle; Microcontroller is analyzed the number that receives, if this number is a telephone number of having opened the IP area, then carries out circuit control, and sends IP information such as Number for access, account number, password, Subscriber Number by transmitter; If the number that receives is not a telephone number of having opened the IP area, the transmitter of dialer is not then worked.Setting or mandatum cassatorium that order comprises account number, area code, long-distance, password, extension set etc. are set, have avoided the adverse effect of the growth of communication data flow speech quality.

Description of drawings:

Fig. 1 is a system block diagram of the present invention.

Embodiment:

Dialer of the present invention is by mainly being made up of microcontroller, memory, transmitter, receiver (decoder), control circuit etc., control circuit is connected with outside line by polarity transformation circuits, phone connects transmitter, receiver by control circuit, carries out the signal transmission; Control circuit is sent into microcontroller to the resetting of phone input, off-hook, dialing signal; Microcontroller connects RAM memory and ROM memory.In a single day microcontroller receives that first number just begins to carry out number analysis, so that order branch control module is set, be connected with described panel, described D/A switch module, described simulation ring dialing tone module, be used for and callee's switched communication agreement, signaling is set up communication process; Network Interface Module is used for being connected with outside IP network; The IP parse module of packing, be connected with described compressing and decompressing audio file module, described protocol signaling control module and described Network Interface Module, be used for to become from the data encapsulation of described compressing and decompressing audio file module the IP bag, or will open, and judged from the IP bag of described Network Interface Module.If packets of audio data then sends to described compressing and decompressing audio file module, if signaling, agreement then send to described protocol signaling control module.Gather the microphone of speech, it has good frequency response characteristic; The earphone that is used for voice played has good frequency response characteristic equally; Panel is made of section dialing in, control section and liquid-crystal display section, is used to provide dialing, retransmits, adds spoon, functions such as dialing tone and ring, control volume, demonstration caller ID; In addition, also comprise: sampling module, be connected with microphone, being used for the voice signal from microphone is digital signal by analog signal conversion, wherein, sample frequency for example is 32KHZ, can obtain the optimum performance price ratio of voice compression; The D/A switch module is connected with earphone, will be converted to analog signal from the digital signal of IP network, passes through the speech of headphone reproduction partner then; Simulation ring dialing tone module is connected with earphone and panel, is used to produce simulated audio signals such as ring back tone, dialing tone, busy tone; The compressing and decompressing audio file module, be connected with sampling module, D/A switch module, carry out audio compression, the decompression work of full duplex (can receive simultaneously and launch) by DSP (digital signal processing chip), the protocol signaling control module, connect with panel, D/A switch module, simulation ring dialing tone mould, be used for and the other side's switched communication agreement, signaling, set up communication process; Network Interface Module, can connect ADSL (Digital Subscriber Loop), HFC (hybrid fiber/ coax, HFC) or Ethernet, decide on P network users access way: enclosed mass is separated in the IP packing, with the compressing and decompressing audio file module, protocol signaling control module and Network Interface Module connect, be used for to become from the data encapsulation of compressing and decompressing audio file module the IP bag, add source address, behind the destination address of protocol signaling control module acquisition, receive Network Interface Module, or the other side IP bag of automatic network interface module is opened in the future, and judged, if packets of audio data, then send to the compressing and decompressing audio file module, if signaling, agreement then sends to the protocol signaling control module.

Claims

1.IP telephone network, it is characterized in that: comprise: mainly form by microcontroller, memory, transmitter, receiver (decoder), control circuit etc., control circuit is connected with outside line by polarity transformation circuits, and phone connects transmitter, receiver by control circuit, carries out the signal transmission; Control circuit is sent into microcontroller to the resetting of phone input, off-hook, dialing signal; Microcontroller connects RAM memory and ROM memory.