CN1551569A - Transmission method of multimedia data over a network - Google Patents
Transmission method of multimedia data over a network Download PDFInfo
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- CN1551569A CN1551569A CNA2004100309524A CN200410030952A CN1551569A CN 1551569 A CN1551569 A CN 1551569A CN A2004100309524 A CNA2004100309524 A CN A2004100309524A CN 200410030952 A CN200410030952 A CN 200410030952A CN 1551569 A CN1551569 A CN 1551569A
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Abstract
Transmission method of multimedia data over a network. A system and method to allow multimedia (voice and video) data communication to pass through enterprise firewalls and proxy, which include network address translator (NAT). The system also includes servers to redirect voice/video data packets to other VoIP standard conforming servers. The redirect server sends command and data either using transmission control protocol (TCP) or user datagram protocol (UDP), depending on the configuration and protocol requirements of each server. This method is compatible with the existing communication standards, such as ITU H.323, session initiation protocol (SIP), media gateway control protocol (MGCP) and media gateway control (MEGACO).
Description
Technical field
The present invention relates to a kind of method of Network Transmission multi-medium data, particularly relate to a kind of transmission method and system, can make speech and video data carry out free communication as enterprise firewall (enterprisefirewall) or acting server (proxy server), and not need private port is reset or opened to existing fire compartment wall or acting server (proxy) by the network filter (network filter) that is applicable to Intranet (Intranets) or the Internet (Internet).
Background technology
(voice/video over Internet Protocol VoIP) is a kind of important use program of the Internet (internet) and Intranet (intranet) to the transmission of Internet protocol voice.Most of main telecom operators have all begun to prepare wide-scale adoption VoIP service.But because VoIP communication is carried out in the Internet and Intranet, if do not open private port, VoIP order and data just can not be passed through network filter, as, fire compartment wall and agency.Computer hacker (hacker) cause the safety of the network of whole use VoIP to be on the hazard and open such private port, because can utilize these inlets in the filter to enter shielded network.Therefore, be necessary to develop the VoIP application program that when carrying out speech and video data communication, does not need to open private port.
This shows that the method for above-mentioned existing Network Transmission multi-medium data obviously still has inconvenience and defective, and demands urgently further being improved in method and use.The problem that exists for the method that solves the Network Transmission multi-medium data, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and generally not having appropriate method to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that the method for above-mentioned existing Network Transmission multi-medium data exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of method of new Network Transmission multi-medium data, can improve the method for general existing Network Transmission multi-medium data, make it have more practicality.Through constantly research, design, and after studying repeatedly and improving, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective of the method existence of existing Network Transmission multi-medium data, and provide a kind of method of new Network Transmission multi-medium data, technical problem to be solved is to make it can carry out the method and system of multi-medium data transmission by Redirect Server, this server is by general network filter such as enterprise firewall, NAT, or agency (proxy) communicates with end points in the network.Application of the present invention does not need to change the setting of network filter.Thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.The method of a kind of Network Transmission multi-medium data that proposes according to the present invention, it is characterized in that it may further comprise the steps: one first end points sends one first order by one first network filter to a Redirect Server by one first Data Transport Protocol, wherein this Redirect Server obtain this first end points information also with this information storage in wherein; This Redirect Server sends this first order and receives first response to ordering from first of this server to a server.This Redirect Server is sent to this first end points with this first response, thereby sets up the transmission of the multi-medium data that passes through this first end points and this first server at this.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The method of aforesaid Network Transmission multi-medium data, wherein said Redirect Server are redirect signal servers.
The method of aforesaid Network Transmission multi-medium data, wherein said Redirect Server are redirected media servers.
The method of aforesaid Network Transmission multi-medium data, wherein said server comprise a signal server.
The method of aforesaid Network Transmission multi-medium data, wherein said signal server are H.323 gatekeepers.
The method of aforesaid Network Transmission multi-medium data, wherein said signal server are a session initiation protocol (SIP) acting servers.
The method of aforesaid Network Transmission multi-medium data, wherein said signal server are Media Gateway Control Protocol call proxy servers.
The method of aforesaid Network Transmission multi-medium data, wherein said signal server are a media gateway controlling (MEGACO) call proxy servers.
The method of aforesaid Network Transmission multi-medium data, wherein said server also further comprise a media server.
The method of aforesaid Network Transmission multi-medium data, wherein said media server are telephony gateways based on software.
The method of aforesaid Network Transmission multi-medium data, wherein said media server is a telephony gateway of deferring to Internet protocol transporting speech/video (VoIP), and wherein this telephony gateway of deferring to VoIP is an equipment that the VoIP signal is changed into the intelligible signal of telephone system.
The method of aforesaid Network Transmission multi-medium data in the communication between wherein said signal server and the media server, is supported a real time transport protocol (RTP).
The method of aforesaid Network Transmission multi-medium data, wherein said first Data Transport Protocol are transmission control protocols (TCP).
The method of aforesaid Network Transmission multi-medium data, wherein said multi-medium data are speech or video data.
The method of aforesaid Network Transmission multi-medium data, wherein said first network filter are enterprise firewalls.
The method of aforesaid Network Transmission multi-medium data, wherein said first network filter are NATs (NAT).
The method of aforesaid Network Transmission multi-medium data, wherein said first network filter are acting servers.
The method of aforesaid Network Transmission multi-medium data, it is characterized in that it may further comprise the steps: one second end points sends one second order by one second network filter to a Redirect Server by one second Data Transport Protocol, wherein this Redirect Server obtain this second end points information also with this information storage in wherein; This Redirect Server sends this second order and receives one to second one second response of ordering from this server to this server.This Redirect Server is sent to this second end points with this second response, thereby sets up the transmission of the multi-medium data that passes through this second end points and this second server at this.
The method of aforesaid Network Transmission multi-medium data, wherein said multi-medium data according to first end points and the second end points canned data at first end points and second end points, Redirect Server, and transmit between the server, and needn't first and second network filters be reconfigured, do not need to open new port for transmission yet.
The method of aforesaid Network Transmission multi-medium data is supported a real time transport protocol (RTP) in the wherein said server.
The method of aforesaid Network Transmission multi-medium data, transmitting multimedia data between wherein said first end points and second end points, this Redirect Server, and this Server Transport agreement is TCP.
The method of aforesaid Network Transmission multi-medium data, transmitting multimedia data between wherein said first end points and second end points, the Redirect Server, and this Server Transport agreement is User Datagram Protoco (UDP) (UDP).
The method of aforesaid Network Transmission multi-medium data, the information of wherein said first end points are the IP address and the port numbers of this first end points.
The method of aforesaid Network Transmission multi-medium data, wherein said IP address are a public ip address or a private IP address.
The method of aforesaid Network Transmission multi-medium data, it may further comprise the steps: one first end points sends an order by a Data Transport Protocol to an inner Redirect Server by one first signal server; This inside Redirect Server transmits this order by one first network filter to one second Redirect Server; This second Redirect Server is sent to a secondary signal server with this order and is used to handle and receive processing command from this secondary signal server; This second Redirect Server by one second network filter with this processing command be sent to one the 3rd and be redirected server; The 3rd be redirected server with this processing command be sent to one the 3rd signal server and send; The 3rd signal server sends to one second end points with this order; This first end points sends to one first media server by a standard multimedia Data Transport Protocol with multi-medium data; This first multimedia server is sent to this first Redirect Server with this multi-medium data; This first Redirect Server is sent to this second Redirect Server by this first network filter with this multi-medium data; This second Redirect Server sends to one second multimedia server with multi-medium data so that handle; The multi-medium data that this second media server will have been handled is back to this second Redirect Server; This second Redirect Server is sent to the 3rd by this first network filter with this multi-medium data of having handled and is redirected server; The 3rd is redirected server is sent to one the 3rd multimedia server with this multi-medium data of having handled; And the 3rd multimedia server this multi-medium data of having handled is sent to this second end points, thereby set up the multi-medium data transmission between this second end points and this server.
The method of aforesaid Network Transmission multi-medium data, wherein said multi-medium data transmits between this first end points and second end points, this Redirect Server and this server according to canned data in this first end points and second end points, and do not need to reconfigure this first network and second network filter, do not need to open private port for transmission yet.
The object of the invention to solve the technical problems also realizes by the following technical solutions.A kind of system that passes through Redirect Server transmitting multimedia data between an end points and webserver that proposes according to the present invention, it is characterized in that this system comprises: one first transmission channel, be used for this end points and send one first order to the reorientation server by one first Data Transport Protocol, wherein the information of this first end points of this Redirect Server also with this information storage in wherein; One second transmission channel is used for this Redirect Server and will orders to the webserver and send and receive one first response from this first order of the webserver; And a multi-medium data transmission channel, set up when this first end points sends this first response at Redirect Server, allow by this first end points and this webserver in this this multi-medium data transmission channel.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver, wherein said Redirect Server be one from the phasing signal server.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver, wherein said Redirect Server is a redirected media server.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver, the wherein said webserver comprises a signal server.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver, wherein said signal server be one H.323 net send gatekeeper, a session initiation protocol (SIP) acting server, Media Gateway Control Protocol call proxy server or colony's gateway control (MEGACO) call proxy server.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver, wherein said server also further comprises a media server.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver, wherein said media server is that a phone based on software closes the hilllock.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver, wherein said media server is one and defers to Internet protocol voice (VoIP) telephony gateway that the wherein said voip phone gateway of deferring to is an equipment that is used for the VoIP signal is translated into an intelligible signal of telephone system.
The aforesaid system that passes through Redirect Server transmitting multimedia data between an end points and webserver supports a real-time transport protocol (rtp) in the communication between wherein said signal server and the media server.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, the present invention proposes a kind of method of Network Transmission multi-medium data, and this method support all has private IP address (private internet protocoladdresses) and/or is positioned at the end points of acting server inside.
The present invention also supports an end points in fire compartment wall inside, and another end points has the situation of a public ip address (public IP address).In addition, the present invention also supports to have the end points of private IP address and has the communications between endpoints of public ip address.End points refers to IP (InternetProtocol) phone or soft phone (softphone).
The present invention support to use transmission control protocol (transmission control protocol, TCP) or User Datagram Protoco (UDP) (user datagram protocol, UDP) end points of transmission command and voice data.
The present invention is supported in multi-medium data-speech and the video communication of carrying out between the end points that uses any existing communication agreement, as (a standard of International Telecommunications Union approval H.323, with reference to ITU-TH.323), session initiation protocol (session initiation protocol, SIP, with reference to IETF RFC2543), MGCP (media gateway control protocol, MGCP, with reference to IETF RFC 2705), and media gateway controlling (media gateway control, MEGACO, with reference to ITU-T H.248).
The present invention supports to use Redirect Server to carry out multi-medium data and Speech Communication by network filter.
Via as can be known above-mentioned, the invention relates to a kind of method of Network Transmission multi-medium data, a kind of permission multimedia (speech and video) data communication is by the system and method for enterprise firewall and acting server (proxy), and it comprises NAT (NAT).This system also comprises the server to the server redirection voice of other VoIP standard conforming.This Redirect Server or use transmission control protocol (TCP), or use User Datagram Protoco (UDP) (UDP) to send order and data, depend on the configuration and the protocol requirement of each server.This method and existing communication standard compatibility, for example ITUH.323, session initiation protocol (SIP), Media Gateway Control Protocol and media gateway controlling MEGACO).
By technique scheme, the method for Network Transmission multi-medium data of the present invention has following advantage at least:
The invention provides a kind of method and system that can carry out multi-medium data transmission by Redirect Server, this server is by general network filter such as enterprise firewall, NAT, or agency (proxy) communicates with end points in the network.Application of the present invention does not need to change the setting of network filter.
In sum, the method of special networks transmitting multimedia data of the present invention, it has above-mentioned many advantages and practical value, and in class methods, do not see have similar design to publish or use and really genus innovation, no matter it is all having bigger improvement on method or on the function, have large improvement technically, and produced handy and practical effect, and the method for more existing Network Transmission multi-medium data has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a novelty, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Concrete grammar of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 uses the redirect signal server to carry out the block diagram of a method of VoIP transfer of data by network filter according to a preferred embodiment of the present invention.
Fig. 2 uses the redirect signal server by fire compartment wall and NAT (network address translator according to a preferred embodiment of the present invention, NAT) carrying out the block diagram of a method of VoIP transfer of data, is the special case of Fig. 1.
Fig. 3 uses the redirect signal server to carry out the block diagram of a method of VoIP transfer of data by fire compartment wall and agency (proxy) according to a preferred embodiment of the present invention, is the special case of Fig. 1.
Fig. 4 uses to be redirected media server carries out a method of VoIP transfer of data by network filter block diagram according to a preferred embodiment of the present invention.
Fig. 5 uses to be redirected media server and to carry out the block diagram of a method of VoIP transfer of data by fire compartment wall and NAT according to a preferred embodiment of the present invention, is the special case of Fig. 4.
Fig. 6 is Redirect Server used according to the invention carries out a method of VoIP transfer of data by network filter a block diagram.
Fig. 7 is RTP (real-time transport protocol, the RTP) printout of the form demonstration that has header extension (header extension) according to of the present invention.
Fig. 8 is the block diagram that carries out order and transfer of data according to a preferred embodiment of the present invention between Redirect Server, signal server and media server.
Fig. 9 uses the Redirect Server that is positioned at the network filter both sides to carry out the block diagram of a method of VoIP transfer of data by network filter according to a preferred embodiment of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of method, method, step, feature and the effect thereof of the Network Transmission multi-medium data that foundation the present invention is proposed, describe in detail as after.
See also Fig. 1 to shown in Figure 9, the method for the Network Transmission multi-medium data of preferred embodiment of the present invention, it mainly may further comprise the steps:
Fig. 1 illustrates according to a preferred embodiment of the present invention, uses the exchange and the response of ordering in the communication of redirect signal server 25 between two end points 30 and 40 of a network.In network, utilize transmission control protocol (TCP) or other standard data transmission protocols to send order to redirect signal server 25 by end points 30 and 40.
When connecting, order is sent to redirect signal server 25 by end points 30 and 40 by end points 30 and 40 corresponding network filters 50 and 60.The relevant information of redirect signal server 25 each end points of storage, for example, the IP address and the port numbers of each end points.Then, redirect signal server 25 utilizes an agreement that order is sent to a signal server 70, and this agreement is that signal server 70 is supported, for example, and UDP.Signal server 70 can be selected from numerous standard server, as gatekeeper (Gatekeeper) H.323 (a kind of standard of International Telecommunications Union's approval with reference to ITU-TH.323, can obtain from the Internet, as network address:
Http:// ww.itu.int), the session initiation protocol acting server (SIP with reference to IETF RFC 2543, can obtain from the Internet, as network address:
Http:// www.ietf.org), the media gateway controlling call proxy server (MEGACO with reference to ITU-TH.248, can obtain from the Internet, as network address:
Http:// www.ietf.org).Then, by signal server 70 with a response return to redirect signal server 25 and subsequently by redirect signal server 25 with this response back to end points 30 and 40.
As an example, see also and shown in Figure 2ly an end points 30 has been described in an enterprise firewall 50, and the situation of end points 40 in a NAT (NAT) 80.Redirect signal server 25 can utilize UDP or TCP, send order as SIP INVITE to session initiation protocol (SIP) acting server that effect is equivalent to signal server 70, as long as media server 20 can directly handle NAT80 and fire compartment wall 50, just need not revise (end points 30 and 40) private IP address and port numbers.This has just reduced the additive decrementation of redirect signal server 25.Media server 20 stores endpoint id, IP address and User Datagram Protoco (UDP) (UDP) port numbers of end points, so that communicate with end points.This can know data are from which end points according to its port numbers that receives the voice packet with regard to making media server 20.That media server 20 can be based on software or follow voip phone gateway (VoIP compliant telephony gateway).Gateway (gateway) is the equipment that is used for the VoIP signal is translated as the intelligible signal of plain old telephone system.
Is example at this with a sip proxy server, and signal server 70 will be ordered, and is sent to SIP media server 20 as SIPINVITE, is used to receive the voice data so that open live transmission protocol port.Signal server 70 and media server 20 communicate by RTP.Media server 20 is sent to redirect signal server 25 with response and public ip address thereof and port numbers, and redirect signal server 25 connects by TCP thereupon this response is back to port 30 and 40.Like this, port has specific remote ip address and port numbers so that transmit multi-medium data to the destination end points.
See also the network filter of the another kind of form of the foregoing description acting server 90 shown in Figure 3.
See also shown in Figure 4ly, end points 30 and 40 carries out network by a Transmission Control Protocol or other Data Transmission Controlling standards with a redirected media server 100 and is connected. End points 30 and 40 is used to send multi-medium data by network filter 50 and 60 to redirected media server 100 from the information of media server 20 (IP address and port numbers).Then, be redirected media server 100 and send data to media server 20 by UDP.The form of port 30 and 40 data that send is identical with IETFRFC 1889 (RTP) recommendation.
The RTP header extension can adopt different-format in use, as the length overall of the parameter type that comprises, parameter bit length, parameter marshalling and RTP expansion.
Fig. 5 is another form embodiment illustrated in fig. 4, adopts NAT 80 to substitute filter 60.
Fig. 6 has shown that with Fig. 8 end points 30 is connected with Redirect Server 110 by TCP with 40.According to the present invention, end points 30 and 40 is to being used for transmitting the same Redirect Server 110 transmission order and the multi-medium datas of ordering and transmitting multi-medium datas to redirected media server 100 to redirect signal server 25 as the aforementioned.When end points 30 and 40 when Redirect Server 110 sends order or multi-medium data, be coupled with a RTP head expansion (RTP header extension), will transmit data markers for ordering or multi-medium data.Data type is order or voice.When Redirect Server 110 receives data, at first find whole packet.110 pairs of data types of Redirect Server detect then.If data type is an order, then these data are sent to signal server 70.If data type is a voice, Redirect Server 110 sends to media server 20 with these data, simultaneously in head memory ports having number.RTP head expansion form in commission is variable, as the length overall of the parameter type that comprises, parameter bit length, parameter marshalling and RTP expansion.
Second method of the present invention is incorporated the function of the redirected media server 100 shown in the redirect signal server 25 shown in Fig. 1-3 and Fig. 4-5 into a single Redirect Server 110.See also shown in Figure 8ly, Redirect Server 110 sends order and sends multi-medium datas to media server 20 to signal server 70.
See also another preferred embodiment of the present invention shown in Figure 9.Between port 30 and 40, and add a signal server 70a and 70b respectively between port 30 and the 40 corresponding network filters 50 and 60, media server 20a and 20b, and an inner Redirect Server 15a and a 15b.Outside the filter 50 and 60, also have another Redirect Server 110 or one as above-mentioned signal to reset combination, be used for two data between nodes transmission of Control Network with server and medium Redirect Server.
In the present embodiment, end points 30 and 40 sends order and multi-medium data by TCP or UDP.The order that originating endpoint sends comprises voice data and identifier public or private IP address, port numbers and destination port.
For the example purpose, are ancestor nodes at this supposition end points 30, and end points 40 is destination nodes.End points 30 sends an order to a signal server 70a, meets SIP, H.323, MGCP or MEGACO standard.This order comprises privately owned or public ip address, the voice port numbers of an end points 30 and the identifier of a destination end points 40.After receiving data, signal server 70a sends an order to media server 20a, and media server 20a is transmitted back to signal server 70a with a response that has self public ip address and port numbers.Signal server 70a is recycled to end points 30 with this information.During data exchanging completed, signal server 70a sends order to media server 20a, to generate a corresponding endpoint M1, is used for communicating by letter with its intended purposes ground end points 40.More than be equally applicable to Fig. 1,2 and 3.
After being connected of end points M1 set up, signal server 70a can send an order to an inner Redirect Server 15a, has the information of end points M1 simultaneously.See also shown in Figure 10ly then, this inside Redirect Server 15a adds stature expansion for this order, and the agreement that allows by TCP or any network filter security protocol, pass through network filter, as filter 50, the order of this modification is sent to an outside Redirect Server 110
Media server 20a receives multi-medium data from end points 30, as speech or video, and these data is delivered to inner Redirect Server 15a.Inner Redirect Server 15a adds the higher authorities' expansion for this multi-medium data, and by the agreement of TCP or the permission of any network filter security protocol, by filter 50 these data is delivered to Redirect Server 110.
Receive after the data from Redirect Server 15a that data type is also detected in the position of Redirect Server 110 specified data bags.If data are orders, Redirect Server 110 is sent to signal server 70 with order.If data are multimedia, speech or video, Redirect Server 110 is sent to media server 20 with data.
After command transfer finished, end points 30 just can exchange to the multimedia of naming a person for a particular job, speech and video data and end points 40 by following: media server 20a, inner Redirect Server 15a, filter 50, Redirect Server 110, media server 20, Redirect Server 110, filter 60, Redirect Server 15b, media server 20b.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (35)
1, a kind of method of Network Transmission multi-medium data is characterized in that it may further comprise the steps:
One first end points sends one first order by one first network filter to a Redirect Server by one first Data Transport Protocol, wherein this Redirect Server obtain this first end points information also with this information storage in wherein;
This Redirect Server sends this first order and receives first response to ordering from first of this server to a server.
This Redirect Server is sent to this first end points with this first response, thereby sets up the transmission of the multi-medium data that passes through this first end points and this first server at this.
2, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said Redirect Server is a redirect signal server.
3, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said Redirect Server is a redirected media server.
4, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said server comprises a signal server.
5, the method for Network Transmission multi-medium data according to claim 4 is characterized in that wherein said signal server is a H.323 gatekeeper.
6, the method for Network Transmission multi-medium data according to claim 4 is characterized in that wherein said signal server is a session initiation protocol (SIP) acting server.
7, the method for Network Transmission multi-medium data according to claim 4 is characterized in that wherein said signal server is a Media Gateway Control Protocol call proxy server.
8, the method for Network Transmission multi-medium data according to claim 4 is characterized in that wherein said signal server is a media gateway controlling (MEGACO) call proxy server.
9, the method for Network Transmission multi-medium data according to claim 4 is characterized in that wherein said server also further comprises a media server.
10, the method for Network Transmission multi-medium data according to claim 9 is characterized in that wherein said media server is a telephony gateway based on software.
11, the method for Network Transmission multi-medium data according to claim 9, it is characterized in that wherein said media server is a telephony gateway of deferring to Internet protocol transporting speech/video (VoIP), wherein this telephony gateway of deferring to VoIP is an equipment that the VoIP signal is changed into the intelligible signal of telephone system.
12, the method for Network Transmission multi-medium data according to claim 9 is characterized in that in the communication between wherein said signal server and the media server, supports a real time transport protocol (RTP).
13, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said first Data Transport Protocol is a transmission control protocol (TCP).
14, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said multi-medium data is speech or video data.
15, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said first network filter is an enterprise firewall.
16, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said first network filter is a NAT (NAT).
17, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said first network filter is an acting server.
18, a kind of application rights requires the method for 1 described Network Transmission multi-medium data, it is characterized in that it may further comprise the steps:
One second end points sends one second order by one second network filter to a Redirect Server by one second Data Transport Protocol, wherein this Redirect Server obtain this second end points information also with this information storage in wherein;
This Redirect Server sends this second order and receives one to second one second response of ordering from this server to this server.
This Redirect Server is sent to this second end points with this second response, thereby sets up the transmission of the multi-medium data that passes through this second end points and this second server at this.
19, the method for Network Transmission multi-medium data according to claim 18, it is characterized in that wherein said multi-medium data according to first end points and the second end points canned data at first end points and second end points, Redirect Server, and transmit between the server, and needn't first and second network filters be reconfigured, do not need to open new port for transmission yet.
20, the method for Network Transmission multi-medium data according to claim 19 is characterized in that supporting in the wherein said server real time transport protocol (RTP).
21, the method for Network Transmission multi-medium data according to claim 19 is characterized in that transmitting multimedia data between wherein said first end points and second end points, the Redirect Server, and this Server Transport agreement is TCP.
22, the method for Network Transmission multi-medium data according to claim 19, it is characterized in that transmitting multimedia data between wherein said first end points and second end points, the Redirect Server, and this Server Transport agreement is User Datagram Protoco (UDP) (UDP).
23, the method for Network Transmission multi-medium data according to claim 1, the information that it is characterized in that wherein said first end points are the IP address and the port numbers of this first end points.
24, the method for Network Transmission multi-medium data according to claim 1 is characterized in that wherein said IP address is a public ip address or a private IP address.
25, a kind of method of Network Transmission multi-medium data is characterized in that it may further comprise the steps:
One first end points sends an order by a Data Transport Protocol to an inner Redirect Server by one first signal server;
This inside Redirect Server transmits this order by one first network filter to one second Redirect Server;
This second Redirect Server is sent to a secondary signal server with this order and is used to handle and receive processing command from this secondary signal server;
This second Redirect Server by one second network filter with this processing command be sent to one the 3rd and be redirected server;
The 3rd be redirected server with this processing command be sent to one the 3rd signal server and send;
The 3rd signal server sends to one second end points with this order;
This first end points sends to one first media server by a standard multimedia Data Transport Protocol with multi-medium data;
This first multimedia server is sent to this first Redirect Server with this multi-medium data;
This first Redirect Server is sent to this second Redirect Server by this first network filter with this multi-medium data;
This second Redirect Server sends to one second multimedia server with multi-medium data so that handle;
The multi-medium data that this second media server will have been handled is back to this second Redirect Server;
This second Redirect Server is sent to the 3rd by this first network filter with this multi-medium data of having handled and is redirected server;
The 3rd is redirected server is sent to one the 3rd multimedia server with this multi-medium data of having handled; And
The 3rd multimedia server is sent to this second end points with this multi-medium data of having handled, thereby sets up the multi-medium data transmission between this second end points and this server.
26, the method for Network Transmission multi-medium data according to claim 18, it is characterized in that wherein said multi-medium data transmits between this first end points and second end points, this Redirect Server and this server according to canned data in this first end points and second end points, and do not need to reconfigure this first network and second network filter, do not need to open private port for transmission yet.
27, a kind of system that passes through Redirect Server transmitting multimedia data between an end points and webserver is characterized in that this system comprises:
One first transmission channel is used for this end points and sends one first order by one first Data Transport Protocol to the reorientation server, wherein the information of this first end points of this Redirect Server also with this information storage in wherein;
One second transmission channel is used for this Redirect Server and will orders to the webserver and send and receive one first response from this first order of the webserver; And
A multi-medium data transmission channel is set up when this first end points sends this first response at Redirect Server, allows by this first end points and this webserver in this this multi-medium data transmission channel.
28, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 27, it is characterized in that wherein said Redirect Server be one from the phasing signal server.
29, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 27 is characterized in that wherein said Redirect Server is a redirected media server.
30, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 27 is characterized in that the wherein said webserver comprises a signal server.
31, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 27, it is characterized in that wherein said signal server be one H.323 net send gatekeeper, a session initiation protocol (SIP) acting server, Media Gateway Control Protocol call proxy server or colony's gateway control (MEGACO) call proxy server.
32, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 30 is characterized in that wherein said server also further comprises a media server.
33, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 32 is characterized in that wherein said media server is that a phone based on software closes the hilllock.
34, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 32, it is characterized in that wherein said media server is one and defers to Internet protocol voice (VoIP) telephony gateway, the wherein said voip phone gateway of deferring to is an equipment that is used for the VoIP signal is translated into an intelligible signal of telephone system.
35, the system that passes through Redirect Server transmitting multimedia data between an end points and webserver according to claim 32 is characterized in that supporting in the communication between wherein said signal server and the media server real-time transport protocol (rtp).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/249,435 | 2003-04-08 | ||
| US10/249,435 US20040158606A1 (en) | 2003-02-10 | 2003-04-08 | Transmission method of multimedia data over a network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1551569A true CN1551569A (en) | 2004-12-01 |
Family
ID=34375059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100309524A Pending CN1551569A (en) | 2003-04-08 | 2004-04-01 | Transmission method of multimedia data over a network |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1551569A (en) |
| TW (1) | TW200425672A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2006125383A1 (en) * | 2005-05-23 | 2006-11-30 | Huawei Technologies Co., Ltd. | A method for traversing the network address conversion/firewall device |
| CN100372331C (en) * | 2005-12-12 | 2008-02-27 | 华为技术有限公司 | Method and system for filtering data |
| WO2008110110A1 (en) * | 2007-03-15 | 2008-09-18 | Huawei Technologies Co., Ltd. | Ip multimedia subsystem service providing method and system |
| CN1863152B (en) * | 2005-09-28 | 2010-05-05 | 华为技术有限公司 | Method for transmitting various messages between internal network users |
| CN1972428B (en) * | 2005-11-24 | 2010-05-26 | 中国电信股份有限公司 | H.323-based video chat system and method |
| CN101217464B (en) * | 2007-12-28 | 2010-09-08 | 北京大学 | UDP data package transmission method |
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| CN103404106A (en) * | 2011-03-04 | 2013-11-20 | 三星Sds株式会社 | SIP message transmission and receiving system and method |
| CN109561058A (en) * | 2017-09-27 | 2019-04-02 | 中兴通讯股份有限公司 | A kind of media server reorientation method, apparatus and system based on udp protocol |
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2004
- 2004-04-01 CN CNA2004100309524A patent/CN1551569A/en active Pending
- 2004-04-07 TW TW93109558A patent/TW200425672A/en unknown
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| CN1812402B (en) * | 2005-01-27 | 2010-11-03 | 联想(北京)有限公司 | Method for realizing H.323 communication data packet through fire wall |
| WO2006125383A1 (en) * | 2005-05-23 | 2006-11-30 | Huawei Technologies Co., Ltd. | A method for traversing the network address conversion/firewall device |
| CN1863152B (en) * | 2005-09-28 | 2010-05-05 | 华为技术有限公司 | Method for transmitting various messages between internal network users |
| CN1972428B (en) * | 2005-11-24 | 2010-05-26 | 中国电信股份有限公司 | H.323-based video chat system and method |
| CN100372331C (en) * | 2005-12-12 | 2008-02-27 | 华为技术有限公司 | Method and system for filtering data |
| WO2008110110A1 (en) * | 2007-03-15 | 2008-09-18 | Huawei Technologies Co., Ltd. | Ip multimedia subsystem service providing method and system |
| CN101267324B (en) * | 2007-03-15 | 2013-01-09 | 华为技术有限公司 | Provision method and system for IP multimedia sub-system service |
| CN101217464B (en) * | 2007-12-28 | 2010-09-08 | 北京大学 | UDP data package transmission method |
| CN101917409A (en) * | 2010-07-23 | 2010-12-15 | 深圳粤和通科技有限公司 | Multimedia stream transmission method and system |
| CN101917409B (en) * | 2010-07-23 | 2013-04-24 | 深圳粤和通科技有限公司 | Multimedia stream transmission method and system |
| WO2011137809A1 (en) * | 2010-11-26 | 2011-11-10 | 华为技术有限公司 | Method, apparatus and system for realizing hypertext transfer protocol redirection in content delivery network |
| CN103404106A (en) * | 2011-03-04 | 2013-11-20 | 三星Sds株式会社 | SIP message transmission and receiving system and method |
| CN103404106B (en) * | 2011-03-04 | 2016-11-09 | 三星Sds株式会社 | Sip message receive-transmit system and method |
| CN109561058A (en) * | 2017-09-27 | 2019-04-02 | 中兴通讯股份有限公司 | A kind of media server reorientation method, apparatus and system based on udp protocol |
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| TW200425672A (en) | 2004-11-16 |
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