CN101834836A - Communication method, device and system based on public IP network - Google Patents
Communication method, device and system based on public IP network Download PDFInfo
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- CN101834836A CN101834836A CN200910214082A CN200910214082A CN101834836A CN 101834836 A CN101834836 A CN 101834836A CN 200910214082 A CN200910214082 A CN 200910214082A CN 200910214082 A CN200910214082 A CN 200910214082A CN 101834836 A CN101834836 A CN 101834836A
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Abstract
The embodiment of the invention discloses a communication method based on a public IP network, which uses an interacted protocol to fuse signaling and media stream in a private protocol and arranges a port corresponding to the interacted protocol for a firewall or NAT so as to realize communication among servers which are located in different local area networks but in the public IP network simultaneously, achieve smooth and clear voice and signaling communication when a calling party and a called party have the firewall or NAT, and provide stable and clear voice communication service for the public IP network. The method also has the advantages of easy deployment, reduced cost, wide single application range and strong network inference resistance, and can provide stable and clear voice communication service. In addition, the embodiment of the invention also discloses a corresponding device and a system for realizing the method.
Description
Technical field
The present invention relates to the telecommunication technology field, more particularly, relate to the means of communication, Apparatus and system based on public IP network.
Background technology
VOIP is with simulated sound signal (Voice) digitlization, makees the agreement or the instrument of real-time transmission on IP Network (IP data network) with the form of data packet (Data Packet).VOIP can upload business such as sending voice, fax, video and data in IP network, store the storage forwarding of forwarding and various information etc. as unified message, virtual telephony, virtual speech/fax mailbox, directory enquiry service, Internet (network) call center, Internet call manager, video conference, ecommerce, fax, VOIP is with its environment that adopts the interconnection of Internet and global ip widely, provide more than traditional business, better, more cheap service has been subjected to operator and user's favor.
Yet, existing VOIP when being applied to public network,
(1) because the network firewall restriction: for the consideration to network security problem, most of units and enterprise have settled firewall software.And use IP address and port to set up data channel between the VOIP protocol requirement terminal each other, but fire compartment wall is configured to limit uncalled external data bag usually and enters, so the terminal of fire compartment wall inside can not receive outside calling, therefore require fire compartment wall to open the initial data packets of a port receipt of call.In the VOIP agreement, for the transmission of Session Initiation Protocol, fire compartment wall can be opened a fixed port for it.But in data transfer procedure, the VOIP protocol requirement distributes different port numbers to transmit a plurality of real time transport protocol rtp streamings.Unless therefore open all of the port of fire compartment wall, can carry out VOIP communication, and this moment, fire compartment wall also just lost meaning.
(2) public network port mapping restriction: general unit and enterprise are for ease of management and use the local area network (LAN) of all setting up the use private IP address, must carry out address transition when needs visit outer net.Call out between the terminal in the local area network (LAN) when communicating by letter without any problem, produce but carry out just having problem when VOIP communicates by letter with outer network termination, reason is that the IP address in the local area network (LAN) is a privately owned character and can not route in Internet.At first, when the terminal of local area network (LAN), can show during the call outside terminal and set up link, but the terminal in the local area network (LAN) can not receive the voice and video packet of outer network termination transmission; Next, the calling that the terminal in the local area network (LAN) can not be received outer network termination.But be used for receipt of call control information and set up the voice and video data channel for some ports of VOIP protocol requirement dynamic assignment, it is powerless just to seem in existing technology.
In addition, router makes that to the blockade of certain port and closing down of operator voice quality can not get ensureing in the public network, has a strong impact on user's use.
Summary of the invention
In view of this, the invention provides a kind of means of communication, Apparatus and system, to guarantee the stable communication of voice and signaling based on public IP network.
A kind of means of communication based on public IP network, described public IP network comprises a plurality of servers, and each server is corresponding LAN respectively, and described method comprises:
Call request is sent to the described first local area network (LAN) corresponding server;
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN);
Realization and described called party's communication.
Preferably, be in callee that the calling party reception server of first local area network (LAN) transmits response message, resolve described response message, realize calling party and called party's communication according to preset protocol at the call request feedback.
Preferably, described preset protocol is: signaling and Media Stream are merged the interconnected agreement that forms at proprietary protocol.
Preferably, also comprise: the registration on described server, specific implementation is:
Send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
Preferably, also comprise:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
A kind of realization comprises based on the device of the public IP network means of communication:
First communication module is used for: call request is sent to the described first local area network (LAN) corresponding server;
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN).
Preferably, also comprise message processing module, be used for: resolve described response message according to preset protocol.
Preferably, also comprise second communication module, be used for:
Send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
Preferably, also comprise the 3rd communication module, be used for:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
A kind of means of communication based on public IP network, described public IP network comprises a plurality of servers, and each server is corresponding LAN respectively, and described method comprises:
The server that is in first local area network (LAN) at calling party place receives the call request from described calling party, obtains called party address and information; And this call request transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server, according to the preset protocol conversion with resolve described response message, described response message is back to described calling party.
Preferably, the described server that is in first local area network (LAN) resolves and receives the call request from the calling party of described first local area network (LAN) according to preset protocol.
Preferably, signaling and Media Stream are merged the interconnected agreement that forms at proprietary protocol.
Preferably, also comprise:
The register requirement of receiving terminal;
Judge whether described register requirement carries authentication information, and send feedback information to terminal;
The register requirement of authentication information is carried in reception, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
Preferably, also comprise:
Receiving terminal carries the register requirement that is used to refresh of authentication information, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
Preferably, comprising:
First communication module is used to receive the call request from the calling party of described first local area network (LAN);
This call request is transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server;
Described response message is back to described calling party;
First processing module: change and resolve described response message according to preset protocol.
Preferably, also comprise second processing module, be used for, resolve described call request, obtain called party address and information according to preset protocol;
Preferably, also comprise second communication module, be used for:
Receive the register requirement of described terminal;
Whether carry authentication information at the described register requirement that the 3rd processing module is judged, send feedback information to terminal;
The register requirement of authentication information is carried in reception, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through;
Also comprise the 3rd processing module, be used to judge whether described register requirement carries authentication information, and authentication result is sent to described communication module.
Preferably, also comprise the 3rd communication module, be used for:
Receiving terminal carries the register requirement that is used to refresh of authentication information, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
A kind of means of communication based on public IP network, described public IP network comprises a plurality of servers, and each server is corresponding LAN respectively, and described method comprises:
The called party who is in second local area network (LAN) receives by the described calling party that is in first local area network (LAN) and transmits by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
Preferably, described called party resolves described call request according to preset protocol, sends response message and is sent to described called party's corresponding server.
Preferably, signaling and Media Stream are merged the interconnected agreement that forms at proprietary protocol.
Preferably, also comprise: the registration on described server, specific implementation is:
Send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
Preferably, also comprise:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
A kind of device of realizing based on the public IP network means of communication, comprise: first communication module, be used for: receive by the described calling party that is in first local area network (LAN) and transmit by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
Preferably, also comprise processing module: resolve described call request information according to preset protocol.
Preferably, also comprise second communication module, be used for: send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
Preferably, also comprise the 3rd communication module, be used for: send to described server and carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
A kind of system that realizes based on the public IP network means of communication, described public IP network comprises a plurality of servers, and each server is corresponding LAN respectively, and described system comprises:
Described calling terminal is used for:
Call request is sent to the described first local area network (LAN) corresponding server;
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN);
Realization and described called party's communication;
Be in the server of first local area network (LAN) at calling party place, be used for:
Reception is obtained called party address and information from the call request of described calling party; And this call request transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server, according to the preset protocol conversion with resolve described response message, described response message is back to described calling party;
Be in the server of second local area network (LAN) at called party place, be used for:
According to the call request of preset protocol conversion and parsing, and be sent to described called party;
Described by calling terminal, be used for: receive by the described calling party that is in first local area network (LAN) and transmit by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
Preferably, be in callee that the calling party reception server of first local area network (LAN) transmits response message, resolve described response message, realize calling party and called party's communication according to preset protocol at the call request feedback;
The server that is in first local area network (LAN) resolves and receives the call request from the calling party of described first local area network (LAN) according to preset protocol;
The server that is in second local area network (LAN) resolves and receives the response message of sending from described called party according to preset protocol;
Described called party resolves described call request according to preset protocol, sends response message and is sent to described called party's corresponding server.
From above-mentioned technical scheme as can be seen, the disclosed means of communication based on public IP network of the embodiment of the invention are utilized the interconnected agreement, being about to signaling and Media Stream merges in a proprietary protocol, and open and described interconnected agreement corresponding port for fire compartment wall or NAT, can be implemented in LAN, and be in communication between the server of public IP network simultaneously, and realized calling party and called party when having fire compartment wall or NAT, can carry out the communication problem of smooth voice clearly and signaling, for stable voice call service clearly is provided on the public IP network; Also be convenient to simultaneously dispose, reduce cost.The invention also discloses calling party, server and called party's device based on the means of communication correspondence of public IP network, and the system that realizes the described means of communication based on public IP network, when calling party, server and called party carry out data interaction, all the information that is received is resolved or the extraction of information operation according to described interconnected agreement, thereby realized the stable communication of voice and signaling, and according to the communication port applied range of described interconnected protocol construction, antijamming capability is strong.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The reliable transport protocol packet format of Fig. 1 for using in the disclosed a kind of means of communication of the embodiment of the invention based on public IP network;
The non-reliable transport protocol packet format of Fig. 2 for using in the disclosed a kind of means of communication of the embodiment of the invention based on public IP network;
Fig. 3 is the disclosed a kind of means of communication signal processing flow figure based on public IP network of the embodiment of the invention;
Fig. 4 is the disclosed a kind of means of communication register flow path figure based on public IP network of further embodiment of this invention;
Fig. 5 is the disclosed a kind of means of communication refresh flow figure based on public IP network of further embodiment of this invention;
Fig. 6 is the disclosed a kind of communication device structure chart based on public IP network of the embodiment of the invention;
Fig. 7 is the disclosed a kind of means of communication flow chart based on public IP network of the embodiment of the invention;
Fig. 8 is the disclosed a kind of means of communication register flow path figure based on public IP network of further embodiment of this invention;
Fig. 9 is the disclosed a kind of means of communication refresh flow figure based on public IP network of further embodiment of this invention;
Figure 10 is the disclosed a kind of communication device structure chart based on public IP network of the embodiment of the invention;
Figure 11 is the disclosed a kind of means of communication flow chart based on public IP network of the embodiment of the invention;
Figure 12 is the disclosed a kind of means of communication register flow path figure based on public IP network of further embodiment of this invention;
Figure 13 is the disclosed a kind of means of communication refresh flow figure based on public IP network of further embodiment of this invention;
Figure 14 is the disclosed a kind of communication device structure chart based on public IP network of the embodiment of the invention;
Figure 15 is the disclosed a kind of system configuration schematic diagram of realizing based on the means of communication of public IP network of the embodiment of the invention;
Figure 16 is the message processing flow figure corresponding with described system;
The message processing flow figure that Figure 17 registers on server for terminal;
Figure 18 is the message processing flow figure of terminal end refresh registration on server.
Embodiment
For quote and know for the purpose of, hereinafter the technical term of Shi Yonging, write a Chinese character in simplified form or abridge and be summarized as follows:
VOIP, Voice over Internet Protocol, the i.e. networking telephone;
SIP, Session Initiation Protocol, i.e. conversation initialized protocol;
NAT, Network Address Translation, i.e. network address exchange;
DTMF, Dual Tone Multi Frequency, i.e. dual-tone multifrequency;
UDP, User Datagram Protocol, i.e. User Datagram Protocol.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The invention provides a kind of means of communication based on public IP network, with by with the fusion of signaling and Media Stream in a proprietary protocol, and open and described interconnected agreement corresponding port for fire compartment wall or NAT, thereby play when calling party and called party's communication penetrating that fire compartment wall and NAT carry out, reaching can be in the purpose of the enterprising line stabilization of public IP network voice call clearly between calling party and the called party.
Embodiment is as follows:
What need at first explanation is that described agreement adopts real-time udp protocol as the low layer bearing protocol.When multi-path media need transmit, this agreement was supported multiplexing modes, and a plurality of voice and signaling are carried on the same transmission logic passage simultaneously, distinguished by different identifiers between the different sessions.
The reliable transport protocol packet format (message of transmission can be described as protocol message) that described calling party, server and called party adopt predefined interconnected agreement to carry out, this protocol message coding adopts binary format, to reduce the byte number of transmission, raise the efficiency.
The protocol message bag is divided into two types: the protocol message bag of reliable transmission and the protocol message bag of unreliable transmission, the protocol message bag of reliable transmission requires between end-to-end must reliable transmission, agreement support re-transmission and affirmation mechanism, losing of bag can cause losing of significant data, influence greatlyyer, generally be used for signaling message transmission; The protocol message bag of unreliable transmission does not need to retransmit and confirm that losing single bag does not have too much influence to communication quality, generally is used for the transmission medium bag.But some medium bag also adopts the mode of reliable transmission, as the DTMF key information.
The reliable transport protocol packet format that as can be seen from Figure 1 uses the interconnected agreement to communicate, as shown in Figure 1, field in the protocol message bag of reliable transmission adopts the expression mode of information unit (Information Element), the structure of an information unit comprises three: the sign of information unit (ID), the length of information unit, the content of information unit, wherein:
" F " bit represents that this message elements is that the message elements of reliable transmission also is the message elements of non-reliable transmission, is the message elements of reliable transmission when being 1;
Calling Number is a calling number;
Called Number is a called number;
" R " bit represents whether this message is a resend messages, 1 expression resend messages, the non-resend messages of 0 expression;
Timestamp when time-stamp represents the message transmission;
Out Seq represents the sequence number of the Media Stream that sends, and the value of calling out first bag when beginning to set up is 0, increases progressively successively.
In Seq represents the sequence number of the Media Stream received, and the value of calling out first bag when beginning to set up is 0, increases progressively successively.It always represents to expect the sequence number of the next medium bag received.
Frame Type represents the type of message frame, and following type is arranged:
1) signaling frame: represent that this bag is the frame of control channel;
2) speech frame: represent that this bag is the frame of transmitting audio data;
3) frame of video: represent that this bag is the frame of transmitting video data;
4) DTMF frame: represent that this bag is the frame of transmitting DTMF button data.
5) comfort noise frame: represent that this bag is the frame of transmission comfort noise data.
Subcalss represents some attribute datas of wrapping, and the attendant of a stage actor's type is relevant.For example when Frame Type represented the DTMF frame, the subclass field was represented the type of dtmf signal.
The protocol message packet format of unreliable transmission as shown in Figure 2, as can be seen, compare with the protocol message bag of reliable transmission, the field type of the message elements of the protocol message bag of unreliable transmission lacks than the message elements of reliable transmission, is used for transmitting audio data specially.
Fig. 3 shows the disclosed a kind of means of communication flow process based on public IP network of the embodiment of the invention, may further comprise the steps:
Step 301: call request is sent to the described first local area network (LAN) corresponding server;
Step 302: receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN);
Step 303: resolve described response message according to preset protocol, realize calling party and called party's communication.
Fig. 4 shows the disclosed a kind of means of communication register flow path based on public IP network of further embodiment of this invention, may further comprise the steps:
Step 401: send register requirement to the corresponding with service device;
Step 402: receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Step 403: send the register requirement of carrying authentication information to described server;
Step 404: receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through;
Step 405: send at the response message of confirming that authentication is passed through.
Fig. 5 shows the disclosed a kind of means of communication refresh flow based on public IP network of further embodiment of this invention, may further comprise the steps:
Step 501: send to described server and to carry authentication information, the register requirement that is used to refresh;
Step 502: receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through;
Step 503: send at the response message of confirming that authentication is passed through.
Fig. 6 shows the embodiment of the invention one disclosed a kind of communication device structure based on public IP network, comprising:
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN).
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through;
Transmission is at the response message of confirming that authentication is passed through.
The 3rd communication module 6013 is used for:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through; And send at the response message of confirming that authentication is passed through.
Fig. 7 shows the disclosed a kind of means of communication flow process based on public IP network of further embodiment of this invention, comprises following flow process:
Step 701: the server that is in first local area network (LAN) at calling party place receives the call request from described calling party;
Step 702: resolve described call request according to preset protocol, obtain called party address and information;
Step 703: this call request is transmitted according to preset protocol;
Step 704: receive the response message that the called party be in second local area network (LAN) returns by this local area network (LAN) corresponding server;
Step 705: resolve described response message according to preset protocol, and described response message is sent to calling party.
Fig. 8 shows the disclosed a kind of means of communication register flow path based on public IP network of further embodiment of this invention, may further comprise the steps:
Step 801: the register requirement of receiving terminal;
Step 802: judge whether described register requirement carries authentication information, and send feedback information to terminal;
Step 803: receive the register requirement of carrying authentication information, and when utilizing described authentication information authentication to pass through, send the notice that authentication is passed through;
Step 804: receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
Fig. 9 shows the disclosed a kind of means of communication refresh flow based on public IP network of further embodiment of this invention, may further comprise the steps:
Step 901: receiving terminal carries the register requirement that is used to refresh of authentication information;
Step 902: when utilizing described authentication information authentication to pass through, send the notice that authentication is passed through;
Step 903: receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
Figure 10 shows the disclosed a kind of communication device structure based on public IP network of the embodiment of the invention, and comprising: first communication module 1001 is used for:
Be used to receive call request from the calling party of described first local area network (LAN);
This call request is transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server;
Described response message is back to described calling party;
Receive the register requirement of described terminal;
Whether carry authentication information at the described register requirement that the 3rd processing module is judged, send feedback information to terminal;
The register requirement of authentication information is carried in reception, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
The 3rd processing module 1022 is used for: judge whether described register requirement carries authentication information, and authentication result is sent to described communication module.
The 3rd communication module 1021 is used for:
Receiving terminal carries the register requirement that is used to refresh of authentication information, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
Figure 11 shows the disclosed a kind of means of communication flow process based on public IP network of the embodiment of the invention, may further comprise the steps:
Step 1101: the called party who is in second local area network (LAN) receives by the described calling party that is in first local area network (LAN) and transmits by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Step 1102: resolve described call request information according to preset protocol;
Step 1103: and to described server transmission response message.
Figure 12 shows the disclosed a kind of means of communication register flow path based on public IP network of further embodiment of this invention, comprises following flow process:
Step 1201: send register requirement to the corresponding with service device;
Step 1202: receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Step 1203: send the register requirement of carrying authentication information to described server;
Step 1204: receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through;
Step 1205: send at the response message of confirming that authentication is passed through.
Figure 13 shows the disclosed a kind of means of communication refresh flow based on public IP network of further embodiment of this invention, may further comprise the steps:
Step 1301: send to described server and to carry authentication information, the register requirement that is used to refresh;
Step 1302: receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through;
Step 1303: send at the response message of confirming that authentication is passed through.
Figure 14 shows the disclosed a kind of communication device structure chart based on public IP network of the embodiment of the invention, and comprising: first communication module 1401 is used for:
Reception is transmitted by corresponding server by the described calling party that is in first local area network (LAN), and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
Processing module 1402: resolve described call request information according to preset protocol.
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
The 3rd communication module 1421 is used for:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
Need to prove, because apparatus module type and similar, so do not indicate in the accompanying drawings.
Figure 15 shows disclosed a kind of realization of the embodiment of the invention and comprises based on the system configuration of the means of communication of public IP network
Described calling terminal 1501 is used for:
Call request is sent to the described first local area network (LAN) corresponding server;
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN);
Realization and described called party's communication;
Be in the server 1502 of first local area network (LAN) at calling party place, be used for:
Reception is obtained called party address and information from the call request of described calling party; And this call request transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server, according to the preset protocol conversion with resolve described response message, described response message is back to described calling party;
Be in the server 1503 of second local area network (LAN) at called party place, be used for:
According to the call request of preset protocol conversion and parsing, and be sent to described called party;
Described by calling terminal 1504, be used for: receive by the described calling party that is in first local area network (LAN) and transmit by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
Figure 16 shows the message processing flow figure corresponding with described system, is described as follows:
Step 1601: the call direction called party sends call request;
Step 1602: whois lookup called party address;
Step 1603: determine called party's address, the call request from calling party that receives is transmitted to the called party.
Step 1604: called party's response request feeds back to server with response request;
Step 1605: described server is given described calling party with described responsive feedback;
Step 1606: described calling party realizes communicating by letter with described called party.
It should be explicitly made clear at this point, communication between the described server that is in respectively in the LAN does not indicate in the drawings in detail, but the communication between the described as can be known server of explanation is based on context undertaken by described interconnected agreement, and both are when the information of reception, all with good grounds interconnected agreement is carried out information translation and is resolved the step of the information that receives, because contextual explanation has proved absolutely this point, does not repeat them here.
Figure 17 shows the message processing flow figure that terminal is registered on server, be described as follows:
Step 1701: registration terminal sends register requirement (this register requirement is not carried authentication information) to server;
Step 1702: after server receives this register requirement, judge and wherein do not carry authentication information,, point out this registration terminal to authenticate to the registration terminal feedback information;
Step 1703: registration terminal sends the register requirement of carrying authentication information;
Step 1704: after server receives this register requirement, utilize the authentication information that wherein carries to authenticate, and when authentication is passed through, send the notice that authentication is passed through;
Step 1705: after registration terminal receives this notice, send the response message of confirming that authentication is passed through.
Each assembly function of described system and structure repeat no more, and describe in detail with reference to corresponding method and device.
Figure 18 shows the message processing flow figure that terminal is registered on server, be described as follows:
Step 1801: registration terminal sends the register requirement that is used to refresh of carrying authentication information;
Step 1802: after server receives this register requirement, utilize the authentication information that wherein carries to authenticate, and when authentication is passed through, send the notice that authentication is passed through;
Step 1803: after registration terminal receives this notice, send the response message of confirming that authentication is passed through.
Find out that by above embodiment described cross-server voice penetrating method based on public IP network has the following advantages:
(1) is convenient to dispose, reduces cost
The interconnected agreement is that signaling and Media Stream are merged in a proprietary protocol, like this in carrying out the VOIP communication process, as long as distribute a fixed port number just to can be implemented in the VOIP communication clearly of the enterprising line stabilization of public network to it.This has just significantly reduced the workload that company disposes the keeper; Simultaneously, by the interconnected agreement, just can realize VOIP communication on common network, needn't remove the VPN of application-specific again, this greatly reduces use cost.
(2) independent applied range
The interconnected agreement merges signaling and Media Stream in a proprietary protocol, like this, need not the cooperation of other softwares basically, just can realize the VOIP communication between the network, and is convenient and easy during application, popularization degree height.
(3) the network antijamming capability is strong, and stable voice call service clearly is provided
Problems such as the voice single-pass that general voice server reasons such as on business net port mapping, fire compartment wall penetrate, operator closes down cause, lower tone, the interconnected agreement is that signaling and Media Stream are merged in a proprietary protocol, has solved public network port mapping, fire compartment wall penetration problem effectively.
In addition, to problems such as closing down of the blockade of certain port and operator, its immunity also is greatly improved to router in the public network.This has just guaranteed can provide between the server stable voice call service clearly on public IP network, thoroughly changed the situation that traditional unified communications can only use on private network.
In sum: described embodiment is with the interconnected agreement, the interconnected agreement is that signaling and Media Stream are merged in a proprietary protocol, problems such as VOIP public network port mapping, fire compartment wall in the public network transmission course penetrate have not only been solved well, can be implemented in LAN, and be in simultaneously public ' communication between the server of net; Also be convenient to simultaneously dispose, reduce cost.
In a word, disclosed technical scheme solution fire compartment wall of the embodiment of the invention and NAT adopt the client/server pattern when passing through, terminal as client by fixed port to server registration, if terminal is at corporate intranet, server can obtain the interior net address and the port numbers of registration terminal from registration message, can obtain simultaneously the IP address and the port numbers of the public network of the current use of terminal by the source of message, when next time other customer calls this terminals the time, server can route the call to the callee according to public network address that obtains and private net address like this.
In order to guarantee that communicating by letter between terminal and the server (produces the equipment of NAT conversion) at the network edge place and use same address (IP and port) all the time, terminal must refresh before NAT device loses efficacy the mapping relations between Intranet and the outside network address, so terminal must periodically send registration message to server.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
It will be understood by those skilled in the art that and to use many different technologies and in the technology any one to come expression information, message and signal.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.
The professional can also further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (28)
1. the means of communication based on public IP network is characterized in that, described public IP network comprises a plurality of servers, and each server is corresponding LAN respectively, and described method comprises:
Call request is sent to the described first local area network (LAN) corresponding server;
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN);
Realization and described called party's communication.
2. method according to claim 1, it is characterized in that, be in callee that the calling party reception server of first local area network (LAN) transmits response message, resolve described response message, realize calling party and called party's communication according to preset protocol at the call request feedback.
3. method according to claim 1 is characterized in that, described preset protocol is: signaling and Media Stream are merged the interconnected agreement that forms at proprietary protocol.
4. method according to claim 1 and 2 is characterized in that, also comprises: the registration on described server, and specific implementation is:
Send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
5. method according to claim 1 and 2 is characterized in that, also comprises:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
6. a realization is characterized in that based on the device of the public IP network means of communication, comprising:
First communication module is used for: call request is sent to the described first local area network (LAN) corresponding server;
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN).
7. device according to claim 6 is characterized in that, also comprises:
Message processing module is used for: resolve described response message according to preset protocol.
8. device according to claim 6 is characterized in that, also comprises second communication module, is used for:
Send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
9. device according to claim 6 is characterized in that, also comprises the 3rd communication module, is used for:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
10. the means of communication based on public IP network is characterized in that, described public IP network comprises a plurality of servers, and each server is corresponding LAN respectively, and described method comprises:
The server that is in first local area network (LAN) at calling party place receives the call request from described calling party, obtains called party address and information; And this call request transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server, according to the preset protocol conversion with resolve described response message, described response message is back to described calling party.
11. the means of communication according to claim 10 is characterized in that, the described server that is in first local area network (LAN) resolves and receives the call request from the calling party of described first local area network (LAN) according to preset protocol.
12. the means of communication according to claim 10 is characterized in that, signaling and Media Stream are merged the interconnected agreement that forms at proprietary protocol.
13. according to the claim 10 or the 11 described means of communication, it is characterized in that, also comprise:
The register requirement of receiving terminal;
Judge whether described register requirement carries authentication information, and send feedback information to terminal;
The register requirement of authentication information is carried in reception, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
14. according to the claim 10 or the 11 described means of communication, it is characterized in that, also comprise:
Receiving terminal carries the register requirement that is used to refresh of authentication information, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
15. a realization is characterized in that based on the device of the public IP network means of communication, comprising:
First communication module is used to receive the call request from the calling party of described first local area network (LAN);
This call request is transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server;
Described response message is back to described calling party;
First processing module: according to preset protocol conversion with resolve described response message, obtain called party address and information.
16. device according to claim 15 is characterized in that, comprises that also second processing module is used for, and resolves described call request according to preset protocol, obtains called party address and information.
17. device according to claim 15 is characterized in that, also comprises second communication module, is used for:
Receive the register requirement of described terminal;
Whether carry authentication information at the described register requirement that the 3rd processing module is judged, send feedback information to terminal;
The register requirement of authentication information is carried in reception, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through;
Also comprise the 3rd processing module, judge whether described register requirement carries authentication information, and authentication result is sent to described communication module.
18. device according to claim 15 is characterized in that, comprises the 3rd communication module, is used for:
Receiving terminal carries the register requirement that is used to refresh of authentication information, and when utilizing described authentication information authentication to pass through, sends the notice that authentication is passed through;
Receive described terminal and receiving that the affirmation that described notice back sends authenticates the response message of passing through.
19. the means of communication based on public IP network is characterized in that described public IP network comprises a plurality of servers, each server is corresponding LAN respectively, and described method comprises:
The called party who is in second local area network (LAN) receives by the described calling party that is in first local area network (LAN) and transmits by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
20. method according to claim 19 is characterized in that, described called party resolves described call request according to preset protocol, sends response message and is sent to described called party's corresponding server.
21. the means of communication according to claim 19 is characterized in that, signaling and Media Stream are merged the interconnected agreement that forms at proprietary protocol.
22. method according to claim 19 is characterized in that, also comprises: the registration on described server, specific implementation is:
Send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
23. according to claim 19 or 20 described methods, it is characterized in that, also comprise:
Send to described server and to carry authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
24. a realization is based on the device of the public IP network means of communication, it is characterized in that, comprise: first communication module, be used for: receive by the described calling party that is in first local area network (LAN) and transmit by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
25. device according to claim 24 is characterized in that, also comprises processing module: resolve described call request information according to preset protocol.
26. device according to claim 24 is characterized in that, also comprises second communication module, is used for: send register requirement to the corresponding with service device;
Receive described server and judge whether to carry the feedback information that authentication information sends at described register requirement;
Send the register requirement of carrying authentication information to described server;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
27. device according to claim 24 is characterized in that, also comprises the 3rd communication module, is used for sending to described server carrying authentication information, the register requirement that is used to refresh;
Receive the authentication of the described authentication information of described server by utilizing by the time authentication that the sends notice passed through, and send at the response message of confirming that authentication is passed through.
28. a realization is characterized in that based on the system of the public IP network means of communication described public IP network comprises a plurality of servers, each server is corresponding LAN respectively, and described system comprises:
Described calling terminal is used for:
Call request is sent to the described first local area network (LAN) corresponding server;
Receive this server forwards at described call request and according to preset protocol conversion and resolve, the response message that sends by its corresponding server by the called party who is in second local area network (LAN);
Realization and described called party's communication;
Be in the server of first local area network (LAN) at calling party place, be used for:
Reception is obtained called party address and information from the call request of described calling party; And this call request transmitted according to preset protocol;
Reception is in the response message that the called party of second local area network (LAN) returns by this local area network (LAN) corresponding server, according to the preset protocol conversion with resolve described response message, described response message is back to described calling party;
Be in the server of second local area network (LAN) at called party place, be used for:
According to the call request of preset protocol conversion and parsing, and be sent to described called party;
Described by calling terminal, be used for: receive by the described calling party that is in first local area network (LAN) and transmit by corresponding server, and by described called party's corresponding server according to the preset protocol conversion and the call request of resolving;
Send response message at described call request and be sent to described called party's corresponding server.
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