CN201319631Y

CN201319631Y - Voice gateway

Info

Publication number: CN201319631Y
Application number: CNU2008202136627U
Authority: CN
Inventors: 高伟绪; 刘阳新; 方强
Original assignee: BEIJING FLYINGVOICE TECHNOLOGY Co Ltd
Current assignee: BEIJING FLYINGVOICE TECHNOLOGY Co Ltd
Priority date: 2008-11-19
Filing date: 2008-11-19
Publication date: 2009-09-30
Anticipated expiration: 2018-11-19

Abstract

The utility model relates to the voice communication technology, and provides a voice gateway aiming at solving the defects in the prior art of inconvenient use, nontraditional habit, high cost and low performance of making a network call by earphones and microphones. The voice gateway comprises a main controller, an IP network access module, a PSTN access module and a user line interface circuit; and the IP network access module, the PSTN access module and the user line interface circuit are respectively connected with the main controller in a communication way. The voice gateway receives a VoIP call from the IP network, converts the call into the signaling information of a common call after necessary data processing and then sends the signaling information to a common telephone terminal on the voice gateway. So that the common telephone can be utilized to make the VoIP call, and the utility model is convenient for use and conforms to the calling habits of people.

Description

A kind of voice gateways

Technical field

The utility model relates to the voice communication technology, more particularly, relates to a kind of voice gateways.

Background technology

The advantage of VoIP (Voice Over Internet Protocol, the networking telephone) technology maximum is to adopt the environment of Internet and global ip interconnection widely, and, better service more than traditional business are provided.Therefore, along with the development of Internet, VoIP arises at the historic moment, and finally can to substitute with PSTN (Public Switched Telephone Network, public switched telephone network (PSTN)) Circuit Switching Network's network be the PSTN circuit of transmission medium.The popular immediate communication tool of installing based on computer also constantly emerges simultaneously, for example QQ, MSN, Skype etc., when using this type of Software tool and communicating, require local computing must be connected to sound card, microphone and earphone numerous equipment such as (or loudspeaker).Yet, under a lot of environment, not allowing long-time wearing headphones, this is restricted with regard to the application that makes the networking telephone; And use earphone to carry out speech communication for a long time also not meet the custom that people make a phone call, people more are accustomed to adopting the traditional approach of calling by telephone terminal.In addition, the current speech gateway adopts the design of SOC or primary processor+DSP more, and this design tends to exist cost height, supply of material shortcoming such as untimely.

Therefore, need a kind of voip solution, can overcome the defective that prior art exists.

The utility model content

The technical problems to be solved in the utility model is, the use inconvenience that exists when dialing network telephone by earphone and microphone at prior art and do not meet traditional habit and defective such as cost height, the supply of material be untimely provides a kind of voice gateways.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of voice gateways comprise master controller, IP network access module, PSTN access module and Subscriber Line Interface Circuit; Described IP network access module, described PSTN access module and described Subscriber Line Interface Circuit communicate to connect with described master controller respectively.

In the voice gateways that the utility model provides, described master controller further comprises CPU and digital signal processor.

In the voice gateways that the utility model provides, described Subscriber Line Interface Circuit comprises the encoding and decoding speech module.

In the voice gateways that the utility model provides, also comprise the memory module that communicates to connect with described master controller.

In the voice gateways that the utility model provides, also comprise VoIP terminal access interface.

In the voice gateways that the utility model provides, described VoIP terminal access interface is the RJ45 interface.

In the voice gateways that the utility model provides, described Subscriber Line Interface Circuit comprises that a plurality of RJ11 connect

Mouthful.

In the voice gateways that the utility model provides, also comprise the switching controls module, itself and described master controller and PSTN access module communicate to connect.

In the voice gateways that the utility model provides, also comprise the switch switch detection module, itself and described master controller communicate to connect.

In the voice gateways that the utility model provides, the model of described master controller is IP3210.

Implement the technical solution of the utility model, have following beneficial effect: the voice gateways that the utility model provides receive the voip call from IP network, signaling information carrying out being converted to after data necessary is handled plain old telephone sends to the plain old telephone terminal that is connected on the voice gateways then.Thus, just can dial voip phone by plain old telephone, easy to use and meet the custom that people make a phone call.Simultaneously, the voice gateways that the utility model provides are simple in structure, be easy to realize, and cheap.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the network environment schematic diagram according to the utility model one preferred embodiment;

Fig. 2 is the logical construction schematic diagram according to the voice gateways of the utility model one preferred embodiment;

Fig. 3 is the circuit theory diagrams of master controller among Fig. 2;

Fig. 4 is the circuit theory diagrams of IP network access module among Fig. 2;

Fig. 5 is the circuit theory diagrams of memory module among Fig. 2;

Fig. 6 is the circuit theory diagrams of I/O expansion module among Fig. 2;

Fig. 7 is the circuit theory diagrams of Subscriber Line Interface Circuit among Fig. 2;

Fig. 8 is the circuit theory diagrams of switch switch detection module among Fig. 2;

Fig. 9 is the circuit theory diagrams of switching controls module among Fig. 2.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Fig. 1 is the network environment schematic diagram according to the utility model one preferred embodiment.As shown in Figure 1, comprise voice gateways 102, IP network 104, PSTN network 106, VoIP terminal 108,118,120,122, PSTN terminal 110,112,114 and 116 in this network environment.Voice gateways 102 communicate to connect IP network 104, PSTN network 106, VoIP terminal 108,122 and PSTN terminal 110,112,114 communicate to connect voice gateways 102, VoIP terminal 118,120 communicates to connect IP network 104, and PSTN terminal 116 communicates to connect PSTN network 106.

Voice gateways 102 are connected to IP network 104 by the wide area network link, are connected to PSTN network 106 by the analog or digital trunk line.

The VoIP terminal can be PC, as VoIP terminal 108,118, also can be the telephone set of supporting voip call, as VoIP terminal 120,122.VoIP terminal 108,122 is connected to voice gateways 102 by the RJ45 interface communication.

PSTN terminal 110,112,114 is connected to voice gateways 102 by the RJ11 interface.

The voice gateways 102 that provide by the utility model, PSTN terminal for example PSTN terminal 110,112,114 both can be carried out the traditional PSTN calling with PSTN terminal 116, also can carry out voip call, and the VoIP terminal 108,122 that is connected to voice gateways 102 can also be carried out voip call with VoIP terminal 118,122 with VoIP terminal 118,120.Below just describe the voice gateways 102 that the utility model provides in detail in conjunction with Fig. 2.

Fig. 2 is the logical construction schematic diagram according to the voice gateways 200 of the utility model one preferred embodiment.As shown in Figure 2, voice gateways 200 comprise master controller 202, IP network access module 204, memory module 206, Subscriber Line Interface Circuit 208, PSTN access module 210, I/O expansion module 212, switching controls module 214 and switch switch detection module 216.IP network access module 204, memory module 206, Subscriber Line Interface Circuit 208, I/O expansion module 212, switching controls module 214 and switch switch detection module 216 are connected respectively to master controller 202, I/O expansion module 212, PSTN access module 210 are connected respectively to Subscriber Line Interface Circuit 208, and switching controls module 214 is connected to PSTN access module 210.

Master controller 202 further comprises central processing unit and digital signal processor, is used to finish the processing to VoIP speech data and relevant signaling.In the specific implementation process, it is that the processor of IP3210 realizes that the processor of this model is widely applied on router that master controller 202 can adopt model, and therefore buying is simple, and cost is low.In addition, the processor of this model is supported DSP (digital signal processor) instruction, therefore can be used as digital signal processor, and it can finish complicated voice coding/decoding, other scheme has been saved an independent digital signal processor relatively, can further reduce cost.The circuit theory diagrams of primary processor as shown in Figure 3.

Fig. 4 is the circuit theory diagrams of IP network access module among Fig. 2.The IP network access module is used to insert IP network, for example the Internet.

Fig. 5 is the circuit theory diagrams of memory module among Fig. 2.Memory module can comprise flash memory U8 or U14, SDRAM U10.Wherein flash memory is used for storing the program and the configuration parameter of master controller, stored program and interim data when SDRAM is mainly used in and moves in system.

Fig. 6 is the circuit theory diagrams of I/O expansion module among Fig. 2.The I/O expansion module is mainly finished two communications between the incompatible module.For example, what primary processor adopted is memory bus, is pcm interface and Subscriber Line Interface Circuit adopts, and the I/O expansion module is finished communication between them as bridge between the two.That the I/O expansion module adopts is EPM3032, connects master controller and Subscriber Line Interface Circuit, is used to carry out the PCM voice data communication.

Fig. 7 is the circuit theory diagrams of Subscriber Line Interface Circuit among Fig. 2.Subscriber Line Interface Circuit comprises a plurality of RJ11 interfaces, is used to connect common PSTN terminal.Subscriber Line Interface Circuit is used to simulate exchange, the plain old telephone signaling of plain old telephone terminal, and the PSTN terminal that is connected is powered.In addition, Subscriber Line Interface Circuit also comprises voice coder/decoded portion, be used for the analog signal digital on the phone, and digital signal is simulated, finish the conversion between mould/number.Master controller links to each other with Subscriber Line Interface Circuit, is used to dispose the state information with supervisory user line interface circuit.

Fig. 8 is the circuit theory diagrams of switch switch detection module among Fig. 2.The switch switch detection module can be a relay, and as shown in Figure 8, the switching between VOIP and the PSTN realizes by the switch switch detection module.It is at VoIP or PSTN that the switch switch detection module is used to detect current telephone line.Main controller module links to each other with the switching controls module, when the switch switch detection module with switch during as for VoIP, master controller is just received phone on the VoIP circuit, in like manner in the switch switch detection module with switch during as for PSTN, master controller is just received phone on the PSTN circuit.

Fig. 9 is the circuit theory diagrams of switching controls module among Fig. 2.When the switch switch detection module is dialled to the difference end, after detecting, finishes by master controller the switching between VOIP and PSTN.

PSTN access module 210 is used for connection mode to be intended and/or digital trunk, inserts the PSTN network with this.

As optionally, the voice gateways 200 that the utility model provides also can comprise VoIP terminal access interface, and for example the RJ45 interface is used to connect the VoIP terminal.

That Subscriber Line Interface Circuit 208 adopts is W681388, is used to the power supply of PSTN terminal and voice signal is carried out A/D, D/A conversion.

That the I/O expansion module adopts is EPM3032, connects master controller 202 and Subscriber Line Interface Circuit 208, is used to carry out the communication of PCM speech data.

When using voice gateways of the present utility model, need make following preparation: the one, by ordinary telephone line voice gateways are connected to the pstn telephone net, the 2nd, by ordinary telephone line the PSTN terminal is connected to voice gateways, the 3rd, by netting twine the VoIP terminal is connected to voice gateways, the 4th, by netting twine voice gateways are connected to IP network.

When carrying out the PSTN conversation, at first switch is connected to PSTN, master controller is directly connected to the PSTN network with the PSTN terminal after detecting this action, and then pstn telephone can directly be answered and transfer to the PSTN terminal just as directly inserting PSTN separately.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims

1, a kind of voice gateways is characterized in that, comprise master controller, IP network access module, PSTN access module and Subscriber Line Interface Circuit; Described IP network access module, described PSTN access module and described Subscriber Line Interface Circuit communicate to connect with described master controller respectively.

2, voice gateways according to claim 1 is characterized in that, described master controller further comprises CPU and digital signal processor.

3, voice gateways according to claim 1 is characterized in that, described Subscriber Line Interface Circuit comprises voice coder/decoder module.

4, voice gateways according to claim 1 is characterized in that, also comprise the memory module that communicates to connect with described master controller.

5, voice gateways according to claim 1 is characterized in that, also comprise VoIP terminal access interface.

6, voice gateways according to claim 5 is characterized in that, described VoIP terminal access interface is the RJ45 interface.

7, voice gateways according to claim 1 is characterized in that, described Subscriber Line Interface Circuit comprises a plurality of RJ11 interfaces.

8, voice gateways according to claim 1 is characterized in that, also comprise the switching controls module, and itself and described master controller and PSTN access module communicate to connect.

9, voice gateways according to claim 1 is characterized in that, also comprise the switch switch detection module, and itself and described master controller communicate to connect.

10, voice gateways according to claim 1 is characterized in that, the model of described master controller is IP3210, and the model of described Subscriber Line Interface Circuit is W681388.