CN101478835A - VoWLAN system based on 1X EvDO-WiFi wireless router - Google Patents
VoWLAN system based on 1X EvDO-WiFi wireless router Download PDFInfo
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Abstract
The invention provides a VoWLAN system based on a 1X EvDO-WiFi wireless router, which comprises a VoWLAN terminal, a WiFi wireless router based on 1X EvDO and a SIP server; the VoWLAN terminal is connected to a local area network of the 1X EvDO-WiFi wireless router which is connected to the Internet through CDMA network; any VoWLAN terminal can initiate calling and establish a SIP channel with the SIP server. With the adoption of the 1X EvDO-WiFi router, the VoWLAN system based on the 1X EvDO-WiFi wireless router of the invention greatly promotes and expands property and application scope of the wireless local area network, and provides convenience for a rapid deployment of wireless VoIP voice call (VoWLAN). Under a condition that a mobile network can be accessed, any IP telephone terminal (VoWLAN terminal) with WiFi property can be connected to the Internet at any place and realizes VoWLAN communication in an access manner with the wireless router.
Description
Technical field
The present invention relates to the Wireless VoIP communications field, particularly a kind of VoWLAN system based on 1X EvDO-WiFi wireless router.
Background technology
Existing wireless router generally adopts CDMA 1X mode wireless access Internet, with WiFi wireless local area network technology connecting terminal, makes the user insert Internet with wireless mode in any place that the CDMA signal covers.
Utilize wireless router, the user can be in the remote point or the zone of being inconvenient to connect up online, realizes data communication.
What existing wireless router adopted is CDMA 1X wireless communication technology, has limitation on traffic rate.
Existing VoWLAN system adopts WLAN AP (WAP (wireless access point)) directly to insert Internet, realizes the VoIP voice communication of wireless mode.But in the remote point or other occasions that do not have Internet to insert, existing VoWLAN system is difficult to dispose and realize.
Summary of the invention
The present invention provides a kind of VoWLAN system based on 1X EvDO-WiFi wireless router that can realize the VoIP voice communication of wireless mode in any place with occasion in order to overcome above-mentioned the deficiencies in the prior art.
The technical solution adopted for the present invention to solve the technical problems is: a kind of VoWLAN system based on the 1XEvDO-WiFi wireless router is provided, it comprises the VoWLAN terminal, WiFi wireless router and sip server based on 1X EvDO, described VoWLAN terminal is connected in the local area network (LAN) of 1X EvDO-WiFi wireless router, this wireless router is connected to Internet by cdma network, arbitrary VoWLAN terminal makes a call, and sets up the SIP passage with sip server.
The scheme that the present invention solves further technical problem is: this VoWLAN system utilizes PBX to be connected to plain old telephone among the PSTN.
The scheme that the present invention solves further technical problem is: this system is provided with two WiFi wireless routers based on 1X EvDO, make the VoWLAN terminal in its opposite ends all can initiate or receive dial-up, set up conversation by the sip server on the public network IP.
The scheme that the present invention solves further technical problem is: described VoWLAN terminal is PDA, WiFi handset, IP phone machine or portable computer.
The scheme that the present invention solves further technical problem is: described sip server is responsible for setting up SIP phone conversations all in the network, and its function is the positional information that the callee is provided for the caller, makes the foundation that calling both sides can be successful call out connection.
Messenger SIP network phone system.
The scheme that the present invention solves further technical problem is: described VoWLAN system is based on the Skype network phone system.
Compared to prior art, VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention adopts 1X EvDO-WiFi router greatly to promote and expanded the performance and the range of application of WLAN (wireless local area network), for the quick deployment of Wireless VoIP voice call (VoWLAN) is provided convenience.Under the condition that the mobile network can insert, be access way with this wireless router, the IP phone terminal of any WiFi of possessing function (being the VoWLAN terminal) all can be connected to Internet in arbitrary place, realizes the VoWLAN conversation.
Description of drawings
Fig. 1 is the structural representation of first execution mode of the VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention.
Fig. 2 is the structural representation of second execution mode of the VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention.
Fig. 3 is the structural representation of the 3rd execution mode of the VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention.
The structural representation of first execution mode of Messenger.
The structural representation of second execution mode of Messenger.
Fig. 6 is the structural representation of first execution mode of the employing Skype of the VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention.
Fig. 7 is the structural representation of second execution mode of the employing Skype of the VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention.
Embodiment
Following content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
The WiFi router that the present invention is based on 1X EvDO adopts 1X EvDO wireless technology to realize Wide Area Network interface, be connected to Internet, lan interfaces adopts WiFi WLAN technology, make a plurality of users to share at a high speed and connect, insert Internet from any one place that can obtain mobile telephone signal with wireless mode.When not having the EvDO service to provide, router can also adopt CDMA1X technical battery to receive Internet.Be specially adapted to the isolated area or Internet, for example application scenarios such as field construction, construction site, outdoor exploration are inserted in the zone of being inconvenient to connect up based on the WiFi router of 1X EvDO.
The invention provides a kind of VoWLAN system based on 1X EvDO-WiFi wireless router, it has designed three kinds of VoWLAN implementations according to the difference of VoWLAN terminal access mode.By the WiFi wireless router based on 1X EvDO, three kinds of schemes all can insert Internet anywhere fast, realize data communication, also possess certain voice communication capability simultaneously.Certainly, realization of the present invention is not limited to three kinds of following modes
1. scheme 1
At present the covering radius of WLAN signal generally can reach tens of rice to rice up to a hundred in horizon range, but for the situation of non-line-of-sight propagation, in indoor environment, barrier (as common wall, door and window, partition etc.) is very big to the decay of signal.In addition, there is bigger influence in the roaming of VoWLAN terminal to speech quality.Therefore, this programme does not have the roaming function of design terminal, just in WLAN scope, realize the VoWLAN conversation based on the WiFi wireless router of 1XEvDO, at be the remote outdoor environment that cable network is difficult to cover, this is also consistent with the applied environment of this wireless router.As shown in Figure 1, this scheme can realize the call function that WLAN is interior among a small circle, is equivalent to intercom, for field construction, outdoor prospecting etc. stronger actual application value is arranged.
In this programme, the VoWLAN terminal all is among the WLAN of wireless router, and conversation can be made a call by arbitrary terminal, and sets up the SIP passage with sip server, starts corresponding dialing pattern, thereby is connected to the called number terminal among this WLAN.The sip server bridge joint plays two Media Streams between the terminal then, sets up conversation.
2. scheme 2
As shown in Figure 2, in order to realize and the VoIP conversation of other IP subnets that this programme is arranged on sip server on the public network IP.The user who is in remote open air can insert Internet by the WiFi wireless router based on 1X EvDO, with the VoIP terminal call in other local area network (LAN)s.This scheme can realize the conversation between the wireless router end VoWLAN terminal, also can realize the conversation of remote point or the zone of being inconvenient to connect up and Internet any point, utilize PBX (Private Branchexchange) can also be connected to the plain old telephone among the PSTN.Compare with scheme 1, the communication capacity of this scheme is stronger, wider, but complicated network environment can reduce speech quality.This programme is not considered the roaming of VoWLAN terminal equally, just has mobility in the WLAN of wireless router scope, is equally applicable to application such as field construction, outdoor prospecting.
In this programme, the VoWLAN terminal can be set up arbitrarily in the WLAN of wireless router and communicate with each other, and principle and scheme 1 are similar.Also can be connected to the arbitrary IP phone on the Internet by the sip server on the public network IP.Calling can be initiated by arbitrary terminal, and the conversion of SIP signaling based traversal network address (NAT) and fire compartment wall (FireWall) are set up the SIP passage by sip server, start corresponding dialing pattern, thereby are connected to the called number terminal.
3. scheme 3
As shown in Figure 3, the user who is in remote open air can insert Internet by the WiFi wireless router based on 1X EvDO, converses with the VoWLAN terminal that another wireless router inserts.The characteristics of this scheme be to realize two remote points or the zone of being inconvenient to connect up between conversation, also have ability certainly with arbitrary subnet of Internet or PSTN Internet phone-calling.Compare with scheme 1,2, the communication capacity of this scheme is stronger, wider, but more complicated network environment can reduce speech quality.This programme is not considered the roaming of VoWLAN terminal equally, just has mobility in the WLAN of wireless router scope, is applicable to application such as the field construction of multiple spot form, outdoor prospecting.
In this programme, based on the zone that the WiFi wireless router of 1X EvDO is deployed in any two remote points or is inconvenient to connect up, dial-up can be initiated or receive to the VoWLAN terminal in the two ends all, sets up conversation by the sip server on the public network IP.Identical with scheme 2, the VoWLAN terminal of this programme also can be connected to the arbitrary IP phone on the Internet.
VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention comprises the VoWLAN terminal, based on the WiFi wireless router of 1X EvDO, sip server.Described VoWLAN terminal is connected in the local area network (LAN) of 1X EvDO-WiFi wireless router, and this wireless router is connected to Internet by cdma network, and arbitrary VoWLAN terminal makes a call, and sets up the SIP passage with sip server.
1. terminal
The terminal of VoWLAN has various ways, and a class is conventional terminal and IP phone machines such as ordinary telephone set, PC, is connected to WLAN by Wireless VoIP gateway or wireless network card; Another kind of then is the portable voice terminal of supporting WLAN, comprises PDA, notebook computer and mobile phone (mobile phone) with soft phone (Softphone).
For traditional voice terminal,, need to add voip gateway equipment in order to realize VoIP.The major function of gateway is signaling process, protocol conversion, speech coding and decoding and Routing Protocol processing etc., and the interface that is connected with IP network with the PSTN net externally is provided respectively.Therefore, the gateway device based on WLAN is the product that WAP (wireless access point) (AP) and voip gateway equipment combine in fact.Ustomer premises access equipment inserts voip gateway by analog voice interface on the one hand; On the other hand, this gateway is packaged into voice after the IP grouping bag by built-in WLAN function, has been sent to receiving station's wireless bridge of relaying action by Radio Link.This application mode is similar to the voip solution of wired lan, just converts the WLAN connected mode to, has solved the wiring problem of VoIP, and user terminal need not to do big change, thereby has saved customer charge.IP phone machine and then simpler with the PC of soft phone can insert WLAN by the mode of wireless network card.
For the portable voice terminal of supporting WLAN, then be in terminal, to dispose Wireless LAN module (WiFi function), adopt 802.11 agreements with communicating by letter of WAP (wireless access point) (AP), after making analog voice by terminal, VoIP voice compression technique in the terminal is packaged into the IP packet, then by the WLAN Radio Link, final direct transmitting audio data on Internet.This mode can be so that speech exchange be free fully Anywhere at Internet, and has guaranteed the mobility of terminal.What this project adopted all is portable V oWLAN voice terminal, adopts soft phone to realize conversation.
Support in the Windows system that at present the soft phone of Session Initiation Protocol mainly contains eyeBeam, linphone, Google Talk, Minisip, X-Lite, firefly, qutocomm, SJphone, yate, SpeakFreely, Windows Live Messenger, Yahoo Messenger etc., of a great variety, various informative.Wherein commercial soft phone mainly contains Google Talk, Windows LiveMessenger and Yahoo Messenger, and (Skype also is a kind of soft phone of main flow, but not to adopt Session Initiation Protocol), these all have special-purpose sip server or IP PBX to support, are being runed by the service provider; The soft phone of open source code mainly contains linphone, Minisip, qutocomm, yate, and these soft phones generally provide the source code under the linux system, can use for research, exploitation; Remaining then is the soft phone of third company exploitation, and quantity is more but good and badly do not wait, and part can freely be used.G.711 above-mentioned most of soft phone is generally all supported, G.729A, is G.723.1 waited multiple voice encoding and decoding mode, and has complete S IP stack, speech codec, sound wave echoes arrester, wobble buffer, medium and system framework, call manager that constitutes IP phone and the component software that all are necessary.In addition, the big multipotency of these soft phones uses commercial sip server, and energy and other soft phones or IP phone intercommunication, if by digital SPC exchange (PBX), can also make a call to common base or mobile phone, realizes the conversation with black phone.
2.SIP server
Sip server is the primary clustering of IPPBX, is responsible for setting up SIP phone conversations all in the network.Sip server also is sip proxy server or registrar.Sip server is as the kernel entity in the SIP system, form by modules such as Redirect Server, acting server, registrar, these server co-ordinations, the request message based on SIP that client computer is sent provides service, and returns corresponding replying based on SIP.The function that sip server provides mainly contains: calling out control and processing capacity, business provides/support function, subscriber management function, protocol processes function, route processing, access authentication, charge information collection, Operation and Maintenance/network management function, IWF, safety function (optional), black and white lists function, jam control function (optional) etc.Wherein, the topmost function of sip server is the positional information that the callee is provided for the caller, makes the foundation that calling both sides can be successful call out connection, and this plays a part very crucial in whole VoIP system.
The basic function of sip server comprises:
(1) calls out control and processing capacity
Sip server can finish call setup for basic service/multimedia service, keep and controlled function such as release, comprises call treatment, connects control, intelligent call triggers and detect with resource control etc.Sip server should be supported basic two party call controlled function and Multi-Way Calling controlled function.The conference bridge resources function of Multi-Way Calling should be finished by media server.
(2) business provides/support function
Sip server should be supported basic speech business and multimedia service, also should support traditional PSTN supplementary service and data, multimedia related service.Sip server provides the traditional intelligence network service to need to realize and the traditional intelligence net interconnecting by Softswitch to intra domain user.
(3) protocol processes function
Aspect the protocol processes ability, sip server should be supported agreements such as SIP, SDP, SNMP, Telnet, and optional support has RADIUS, Diameter.The Session Initiation Protocol that sip server adopted must be supported UDP and TCP carrying, and no matter Session Initiation Protocol adopts TCP or UDP carrying, and default port numbers is 5060.
(4) route processing capacity
Sip server should be finished the translation function of domain name to the IP address, realizes the request message redirection function, supports the function of carrying out inquiry of the domain name to name server.For number analysis and memory function, require 20 of calling numbers of sip server support storage, 24 of called numbers, and can extend to the ability of 28 item sign indicating numbers, and have and analyze the ability that 10 item sign indicating numbers are chosen route then, have at an arbitrary position the ability that increases, deletes number.
(5) Operation and Maintenance/network management function
Sip server has the function of system management and Operation and Maintenance, so that user's use, configuration, management, monitoring SIP server.Except supporting the management of local maintenance and remote maintenance, sip server can also communicate with the network management center that supports snmp protocol by the SNMP proxy module of inside.
3. network insertion
WiFi router based on 1X EvDO adopts 1X EvDO wireless technology to realize Wide Area Network interface, be connected to Internet, lan interfaces adopts WiFi WLAN technology, making a plurality of users to share at a high speed with wireless mode connects, insert Internet from any one place that can obtain mobile telephone signal, router can also adopt CDMA 1X technical battery to receive Internet.Agreement and function that this router is mainly supported comprise:
1. wide area network 1X EvDO is at the wireless standard of 800MHz;
2. local area network (LAN) WiFi wireless standard;
3.VPN (Virtual Private Network, IPSec) IP secure tunnel;
4. Ethernet RJ45 interface;
5.TCP/IP agreement;
(6.DHCP Dynamic Host Configuration Protocol) address assignment agreement;
(7.NAT Network Address Translation) function;
8. fire compartment wall;
9. networking, networking monitoring automatically;
10. self diagnosis/operation indication/networking indication;
11. configurable router network interface IP address;
12. configurable dialing parameters;
13.WEB functions such as configuration.
Commercialization VoWLAN system based on 1X EvDO-WiFi wireless router
1.Yahoo！Messenger
At present, existing a lot of IP phone, subscriber proxy server, network agent server, VOIP gateway, media server and application servers all using SIP, also has increasing operator, CLEC (competing local operator) and ITSP (IP phone service provider) all in the service that provides based on SIP. Messenger realizes that concrete scheme is shown in Figure 4 and 5. Messenger could realize calling out. The PBX of Messenger system provides, and belongs to its value-added service part, needs certain expense.
2.Skype
Except the networking telephone based on SIP, Skype also is a kind of commercialization VoIP system of main flow, has huge customer group.With respect to the standardization and the open characteristics of Session Initiation Protocol, what Skype used is privately owned technology and agreement, with Session Initiation Protocol and incompatible.Skype not only comprises the soft phone of terminal part, but also comprises Skype logon server and super node (Super Node), and these three parts have been formed the Skype system.Adopt the soft phone of client-server pattern different with other, Skype has adopted the network of P2P framework, therefore the not existence of central server in the Skype system, but formed global index server (Global IndexServer) jointly by super node and Skype terminal.The VoWLAN implementation that designs on the WiFi wireless router based on 1X EvDO is equally also supported the Skype system, shown in Fig. 6 and 7.Combine after the Skype system powerful, that performance is outstanding, this scheme has greatly improved Practical Performance, speech quality and conversation scope are highly improved, and the conversation between each VoWLAN terminal is free fully, only need pay correlative charges (with reference to the relevant expenses standard of Skype) when dialing the conventional fixed phone with mobile phone.Compare with the scheme of front, adopt the scheme of Skype to converse with the IP phone or the voip gateway of numerous types, because the Skype employing is privately owned technology and agreement, terminal must use Skype could realize calling out.
VoWLAN system based on 1X EvDO-WiFi wireless router of the present invention adopts the 1XEvDO-WiFi router greatly to promote and expanded the performance and the range of application of WLAN (wireless local area network), for the quick deployment of Wireless VoIP voice call (VoWLAN) is provided convenience.Under the condition that the mobile network can insert, be access way with this wireless router, the IP phone terminal of any WiFi of possessing function (being the VoWLAN terminal) all can be connected to Internet in arbitrary place, realizes the VoWLAN conversation.
Claims (7)
1. VoWLAN system based on 1X EvDO-WiFi wireless router, it is characterized in that: it comprises the VoWLAN terminal, WiFi wireless router and sip server based on 1X EvDO, described VoWLAN terminal is connected in the local area network (LAN) of 1X EvDO-WiFi wireless router, this wireless router is connected to Internet by cdma network, arbitrary VoWLAN terminal makes a call, and sets up the SIP passage with sip server.
2. VoWLAN according to claim 1 system is characterized in that: this VoWLAN system utilizes PBX to be connected to plain old telephone among the PSTN.
3. VoWLAN according to claim 1 system, it is characterized in that: this system is provided with two WiFi wireless routers based on 1X EvDO, make the VoWLAN terminal in its opposite ends all can initiate or receive dial-up, set up conversation by the sip server on the public network IP.
4. VoWLAN according to claim 1 system, it is characterized in that: described VoWLAN terminal is PDA, WiFi handset or portable computer.
5. VoWLAN according to claim 1 system, it is characterized in that: described sip server is responsible for setting up SIP phone conversations all in the network, its function is the positional information that the callee is provided for the caller, makes the foundation that calling both sides can be successful call out connection.
Messenger SIP network phone system.
7. VoWLAN according to claim 1 system is characterized in that: described VoWLAN system is based on the Skype network phone system.
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| CN2009101048647A CN101478835B (en) | 2009-01-09 | 2009-01-09 | VoWLAN system based on 1X EvDO-WiFi wireless router |
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| CN2009101048647A CN101478835B (en) | 2009-01-09 | 2009-01-09 | VoWLAN system based on 1X EvDO-WiFi wireless router |
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| CN101478835B CN101478835B (en) | 2011-01-26 |
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| CN106603984B (en) * | 2016-12-22 | 2019-06-14 | 深圳市艾森魏尔科技有限公司 | A method of carrying out serverless backup dialing under video intercom LAN environment |
| CN109873912A (en) * | 2019-02-21 | 2019-06-11 | 广州维实信息科技有限公司 | Sound control method based on soft switch |
| CN110311919A (en) * | 2019-07-10 | 2019-10-08 | 中国联合网络通信集团有限公司 | A kind of outer paging system based on FreeSwich |
| CN110311919B (en) * | 2019-07-10 | 2021-05-18 | 中国联合网络通信集团有限公司 | External calling system based on Freeswitch |
| CN113300930A (en) * | 2021-04-20 | 2021-08-24 | 厦门星纵信息科技有限公司 | IP-PBX long-distance communication interconnection method and system |
| CN115175118A (en) * | 2022-07-05 | 2022-10-11 | 中国联合网络通信集团有限公司 | Cooperative WiFi-based communication service complementation system and method |
| CN115175118B (en) * | 2022-07-05 | 2024-02-13 | 中国联合网络通信集团有限公司 | Communication service complementary system and method based on cooperative WiFi |
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