TW200425672A - Transmission method of multimedia data over a network - Google Patents

Abstract

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

200425672 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a method for transmitting multimedia data over a network, and in particular, to a method and system for transmitting voice and video data through an internal network (Intranets) or Internet network filter (Internet filter) such as enterprise firewall (enterprise firewall) or proxy server (proxy server) to communicate freely without the need for existing firewalls or proxy The server (proxy) resets or opens the dedicated port. [Previous technology] Voice / video over Internet Protocol (VoIP) is a type of Internet and intranet. Important applications. Most major telecommunications operators have already begun preparations for large-scale adoption of V 0 IP services. However, because V ο IP communication is carried out in the Internet and Intranet, if the dedicated port is not opened, V ο IP commands and data cannot pass through network screening programs, such as firewalls and proxies. The opening of such a dedicated port causes the security of the entire network using V 〇 IP to be threatened, because a hacker (ha c k e r) can use these entrances in the screening program to enter the protected network. Therefore, it is necessary to develop a V 0 I p application that does not need to be opened for the voice and video data communication. It can be seen from the above that the existing method for transmitting multimedia data over the network still has inconveniences and defects in methods and use, and further improvements are urgently needed. In order to solve the problem of the method of transmitting multimedia data over the Internet, the relevant manufacturers have tried their best to find a solution, but for a long time

10499twf.ptd Page 6 200425672 V. Description of the Invention (2) No applicable design has been developed, and generally there is no suitable method to solve the above problems. This is obviously a problem that relevant industry operators are anxious to solve. In view of the shortcomings of the existing methods for transmitting multimedia data over the Internet, the inventor is actively researching and innovating based on years of rich practical experience and expertise in designing and manufacturing such products, and in conjunction with the application of science, in order to create a new The method for transmitting multimedia data on the Internet can improve the existing methods for transmitting multimedia data on the network to make it more practical. After continuous research, design, and trial and error, the invention was finally created. [Summary of the Invention] The purpose of the present invention is to overcome the shortcomings of the existing method for transmitting multimedia data over a network, and to provide a new method for transmitting multimedia data over a network. The technical problem to be solved is to enable it to redirect the servo A method and system for multimedia data transmission by a server. The server communicates with endpoints in the network through a common network screening program such as a corporate firewall, a network address translator, or a proxy. The application of the present invention does not require changing the settings of the network screening program. Thus more suitable; ^ practical. The object of the present invention and its technical problems are solved by using the following technical solutions. A method for transmitting multimedia data over a network according to the present invention is characterized in that it includes the following steps: a first endpoint passes a first data transmission protocol to a redirection server through a first network screening program; Send a first command, wherein the redirection server obtains the information of the first endpoint and stores the information therein; the redirection server

10499twf.ptd Page 7 200425672 V. Description of the invention (3) The server sends the first command to a server and receives a first response to the first command from the server. The redirection server sends the first response to the first endpoint, thereby establishing transmission of multimedia data through the first endpoint and the first server. The object of the present invention and its technical problems can be further achieved by adopting the following technical measures. The foregoing method for transmitting multimedia data over a network, wherein the redirection server is a redirection signal server. The foregoing method for transmitting multimedia data over a network, wherein the redirecting server is a redirecting media server. In the foregoing method for transmitting multimedia data over a network, the server includes a signal server. The foregoing method for transmitting multimedia data over a network, wherein the signal server is a Η. 3 2 3 gatekeeper. The foregoing method for transmitting multimedia data over a network, wherein the signal server is a Session Initiation Protocol (SIP) proxy server. In the foregoing method for transmitting multimedia data over a network, the signal server is a Media Gateway Control Protocol (MGCP) calling and calling proxy server. The foregoing method for transmitting multimedia data over a network, wherein the signal server is a media gateway control (M E G A C0) call proxy server. In the foregoing method for transmitting multimedia data over a network, the server further includes a media server. The foregoing method for transmitting multimedia data over a network, wherein the media server is a software-based telephone gateway.

10499twf.ptd Page 8 200425672 V. Description of the invention (4) The aforementioned method for transmitting multimedia data over a network, wherein the media server is a telephone gate that transmits voice / video (V ο IP) in accordance with the Internet protocol The VoIP-compliant telephone gateway is a device that converts VoIP signals into signals that are understood by the telephone system. In the foregoing method for transmitting multimedia data over a network, the real-time transmission protocol (RTP) is supported in the communication between the signal server and the media server. The aforementioned method for transmitting multimedia data over a network, wherein the first data transmission protocol is a Transmission Control Protocol (TCP). The foregoing method for transmitting multimedia data over a network, wherein the multimedia data is voice or video data. In the foregoing method for transmitting multimedia data over a network, the first network screening program is an enterprise firewall. In the foregoing method for transmitting multimedia data over a network, the first network screening program is a network address translator (NAT). In the foregoing method for transmitting multimedia data over a network, the first network screening program is a proxy server. The foregoing method for transmitting multimedia data over a network is characterized in that it includes the following steps: A second endpoint sends a first request to a redirection server through a second network screening program through a second data transmission protocol. Two commands, wherein the redirection server obtains the information of the second endpoint and stores the information therein; the redirection server sends the second command to the server and receives a second command from the server A second response to the command. The redirection server sends the second response to the second endpoint,

10499twf.ptd Page 9 200425672 V. Description of the invention (5) Thus, the transmission of multimedia data through the second endpoint and the second server is established here. The foregoing method for transmitting multimedia data over a network, wherein the multimedia data is between the first endpoint and the second endpoint, the redirection server, and the server according to the information stored by the first endpoint and the second endpoint. Transmission without having to reconfigure the first and second network filters or open new ports for transmission. The foregoing method for transmitting multimedia data over a network, wherein the server supports a real-time transfer protocol (RTP). The aforementioned method for transmitting multimedia data over a network, wherein the first endpoint and the second endpoint transmit multimedia data between the redirection server, and the server transmission protocol is TCP. The aforementioned method for transmitting multimedia data over a network, wherein the first endpoint and the second endpoint transmit multimedia data between a redirection server, and the server transmission protocol is User Datagram Protocol (UDP). The foregoing method for transmitting multimedia data over a network, wherein the information of the first endpoint is an IP address and a port number of the first endpoint. In the foregoing method for transmitting multimedia data over a network, the IP address is a public IP address or a private IP address. The foregoing method for transmitting multimedia data over the network includes the following steps: a first endpoint sends a command to an internal redirection server through a data transmission protocol through a first signal server; the internal redirection server The command is sent to a second redirect server by a first web screening program; the second redirect server sends the command

10499twf.ptd Page 10 200425672 V. Description of the invention (6) to _ A second signal server is used to process and receive processed commands from the second signal server; the second redirection server borrows _ A second network screening program sends the processed command to a second redirect server. The second redirect server sends the processed command to a second signal server. The third signal server sends the processed command. The server sends the command to a second endpoint; the first endpoint sends multimedia data to a first media server J through a standard multimedia data transmission protocol; the first multimedia server sends the multimedia data To the first redirection server J, the second redirection server sends the multimedia data to the first redirection server through the first network screening program. Redirection server The second redirection server sends multimedia data to a second multimedia server for processing; the second media server returns the processed multimedia data to the second redirection server 'The second redirection server sends the processed multimedia data to the first redirection server through the first network screening program, and the third redirection server sends the processed multimedia data Sending to a third multimedia server; and the third multimedia server sending the processed multimedia data to the second endpoint to establish multimedia data between the second endpoint and the server Transmission. The foregoing method for transmitting multimedia data over a network, wherein the multimedia data is stored according to the first endpoint and the second endpoint. Information is transmitted between the first endpoint and the second endpoint between the redirection server and the server without the need to reconfigure the first network and the second network screener to be turned on for transmission Dedicated port 0 The present invention and its technical problems are solved by the following technical methods

10499twf.ptd Page 11 200425672 V. Description of Invention (7). A system for transmitting multimedia data between an endpoint and a web server through a redirect server according to the present invention is characterized in that the system includes a first transmission channel for the endpoint to borrow A first data transmission protocol sends a first command to the relocation server, wherein the redirection server stores the information of the first endpoint and stores the information therein; a second transmission channel is used for the redirection The server sends the command to the web server and receives a first response to the first command from the web server; and a multimedia data transmission channel, the redirect server sends the first command to the first endpoint Established upon response, where the multimedia data transmission channel is allowed to pass through the first endpoint and the web server. The object of the present invention and its technical problems can be further achieved by adopting the following technical measures. The foregoing system for transmitting multimedia data between an endpoint and a web server through a redirect server, wherein the redirect server is a redirect signal server. The aforementioned system for transmitting multimedia data between an endpoint and a web server through a redirect server, wherein the redirect server described above is a redirect media server. ’The aforementioned system for transmitting multimedia data between an endpoint and a web server via a redirect server, wherein said web server includes a signal server. The aforementioned system for transmitting multimedia data between an endpoint and a web server through a redirect server, wherein said signal servo

10499twf.ptd Page 12 200425672 V. Description of the invention (8) The device is a 送 · 3 2 3 network delivery gatekeeper, a session initiation protocol (s IP) proxy server, a media gateway control protocol (MGC P) call The proxy server, or a mass gateway control (M EGAC 0) calls the proxy server. The foregoing system for transmitting multimedia data between an endpoint and a web server via a redirect server, wherein the server further includes a media server. The aforementioned system for transmitting multimedia data between an endpoint and a web server via a redirect server, wherein said media server is a software-based telephone gateway. The foregoing system for transmitting multimedia data between an endpoint and a web server through a redirect server, wherein the media server is an Internet Protocol-compliant voice / video (V 0 丨 ρ) telephone Gateway, where the compliant VoIP telephone gateway is a device for translating a V0IP signal into a signal understandable by a telephone system. The aforementioned system for transmitting multimedia data between an endpoint and a web server through a redirect server, wherein the communication between the signal server and the media server supports a real-time transfer protocol (RTP) 〇 Compared with the prior art, the present invention has obvious advantages and beneficial effects. It can be known from the above technical solutions that, in order to achieve the foregoing object of the present invention, the present invention proposes a method for transmitting multimedia data over a network. The method supports all having private IP protocol addresses and / or endpoints located inside the proxy server. . The invention also supports that one endpoint is inside the firewall and the other endpoint

10499twf.ptd Page 13

200425672 V. Description of the invention (9) Case of having a public IP address. In addition, the present invention supports communication between an endpoint having a private IP address and an endpoint having a public IP address. Endpoints refer to IP (Internet Protocol) phones or softphones. The present invention supports endpoints that use transmission control protocol (TCP) or user datagram protocol (UDP) to transmit commands and voice / video data. The present invention supports multimedia data-voice and video communication between endpoints using any existing communication protocol, such as Η · 3 2 3 (a standard approved by the International Telecommunication Union, see ITU-T Η. 3 2 3), Session initiation protocol (SIP, refer to IETF RFC 2543), media gate way control protocol (MGCP, refer to I ETF RFC 2 705), and media gateway control (media gateway control, MEGACO, refer to ITU-T H. 248). The present invention supports multimedia data and voice communication through a network screening program using a redirection server. It can be known from the above that the present invention relates to a method for transmitting multimedia data over a network, a system and method for allowing multimedia (voice and video) data communication to pass through an enterprise firewall and a proxy server (P r 0x y), including a network Address translator (NAT). The system also includes a server that redirects voice / video to other VoIP-compliant servers. The redirect server uses either Transmission Control Protocol (TCP) or User Datagram Protocol (UDP)

Page 14 200425672 V. Description of invention (ίο) Sending commands and information depends on the configuration and agreement requirements of each server. This method is compatible with existing communication standards, such as I TU 3 3. 3 3. Dialog Initiation Protocol (SI P), Media Gateway Control Protocol (MGCP), and Media Gateway Control (MEGAC0) 〇With the above technical solution, The method for transmitting multimedia data on the network of the present invention has at least the following advantages: The present invention provides a method and system capable of transmitting multimedia data by using a redirection server that passes a common network screening program such as a corporate firewall, a network An address translator, or proxy, communicates with endpoints in the network. The application of the present invention does not require changing the settings of the network screening program. To sum up, the special method for transmitting multimedia data on the network of the present invention has many of the above advantages and practical values, and it is indeed an innovation without similar publication or use of similar designs in similar methods. The method or function has been greatly improved, the technology has been greatly improved, and it has produced easy-to-use and practical effects. It has improved functions over the existing methods of transmitting multimedia data on the network, and thus more Suitable for practical use, and has extensive industrial use value, sincerely new, progressive, practical new design. '' The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, and can be implemented in accordance with the content of the description, the following describes in detail the preferred embodiments of the present invention in conjunction with the drawings as follows . [Embodiment]

10499twf.ptd Page 15 200425672 V. Description of the invention (11) ----------- · Zhan ~ further describes the present invention to achieve the purpose of the invention and its effect, the following combination of drawings and preferred embodiments The specific implementations, methods, steps, features and functions of the method for transmitting multimedia data over the network according to the present invention are described in detail below. Referring to FIG. 1 to FIG. 9, a method for transmitting multimedia feeds over a network according to a preferred embodiment of the present invention mainly includes the following steps: FIG. 1 _ 疋 illustrates the use of redirection according to a preferred embodiment of the invention The signal feeder 25 communicates and responds to commands in communication between two 30 and 40 on a network. Using the Transmission Control Protocol (TCp) or other standards in the network > The material transmission protocol sends commands from the endpoints 30 and 40 to the redirection signal server 25. When the connection is made, the command is sent from the endpoints 30 and 40 to the redirection signal server 25 through the corresponding network screening programs 50 and 60 of the endpoints 30 and 40. Redirection signal server 25 stores information about each endpoint, such as the IP address and port number of each endpoint. Then, the redirect signal server 25 sends a command to a signal server 70 using a protocol which is supported by the signal server 70 ', for example, u D P. The signal server 70 can be selected from a number of standard servers, such as H · 32 3 gatekeeper (a standard approved by the GatekeepepC International Telecommunication Union, refer to ITU-TH · 32 3, which can be obtained from the Internet, such as URL: h 11 p: // ww · itu. Int), the session initiation protocol proxy server (SIP, refer to IETF RFC 2 543, available from the Internet, such as the URL: h 11 p: // www www ietf · 〇rg) The media gateway control beer is called the agent temple server (MEGACO, refer to ΙΤϋ—TΗ · 248, which can be obtained from the Internet, such as the website address: h 11 p: / / www · ietf · 〇rg). Then, with the signal word server

10499twf.ptd Page 16 200425672 V. Description of the invention (12) 70 sends a response back to the redirection signal server 25 and then sends the response back to the endpoints 3 and 4 through the redirection signal server 2 5 0. As an example, please refer to FIG. 2 to illustrate the situation where an endpoint 30 is within a corporate firewall 50 and an endpoint 40 is within a network address translator (NAT) 80. The redirection signal server 25 can use UDP or TCP. For example, SIP INVITE sends commands to a Session Initiation Protocol (SIP) proxy server that functions as the signal server 70, as long as the media server 2 can directly handle NAT 80 and the firewall 50, there is no need to modify the private IP address and port number (for endpoints 30 and 40). This reduces the extra consumption of the redirect signal server 25. The media server 20 stores the endpoint ID, IP address and User Datagram Protocol (U D P) port number of the endpoint to facilitate communication with the endpoint. This allows the media server 20 to know which endpoint the data is coming from based on the port on which it receives voice / video packets. The media server 20 can be software-based or a Vo IP compliant telephony gateway. A gateway is a device used to translate a v0IP signal into a signal that can be understood by a normal telephone system. Here, an SIP proxy server is taken as an example. The signal server 70 sends commands such as SIP INVITE to the SIP media server 20, so as to open the instant transmission protocol port for receiving voice / video data. The taxi number server 70 and the media server 20 communicate with each other through R T P. The media server 2 〇 sends the response with its public IP address and Tan number to the redirection signal server 2 5, and the redirection signal server 25 then sends the response back to the ports 30 and 40 via the TCP connection. . In this way, the port has a specific remote IP address and port number to facilitate the transfer of multimedia data to the destination endpoint.

10499twf.ptd Page 17 200425672 V. Description of the invention (13) Please refer to FIG. 3 for another form of network screening program of the proxy server 9 in the embodiment of the upper escape. ^ Please refer to FIG. 4 ′ The endpoints 30 and 40 are connected to a redirected media server via a TCP protocol or other data transmission control standard. Endpoints 30 and 40 use the information from the media server 2o (p address and 璋) to send multimedia data to the redirected media server 1o through the network screening programs 5o and 6o. Then, the redirected media server sends data to the media feeder 20 through the UDp. The format of the data sent by ports 3 and 4 is the same as recommended by IETF RFC 1 889 (RTP).

Endpoints 30 and ⑼ will be shown as the one shown in the figure. "A special profile extension (RTP profile-specific extensi) is added to the RTp header. The redirected media server 100 is extended via RTp (RTp e X tensi ο η) will know how to send data to the media server 2. The RTP header extension can be used in different formats, such as the parameter type 'parameter bit length, parameter ordering, and total length of the RTp extension. Figure 5 It is another form of the embodiment not shown in FIG. 4, and N τ 8 8 is used instead of the screening program 60.

Figures 6 and 8 show that endpoints 30 and 40 are connected to the redirection server 110 via TCp. According to the present invention, the endpoints 30 and 40 send the same redirection server as described above for transmitting the command to the reset server 25 and the redirecting server 100 to the redirecting media server 100. Send commands and multimedia materials. When the endpoints 30 and 40 send a command or multimedia data to the redirection server 10, an RTP header extension is added to mark the transmission data as command or multimedia data. data

200425672 V. Description of the invention (14) The type of plough is command or voice / video. When the redirect server receives data, it first finds the entire packet. Then redirect the server to check the data type. If the data type is a command, the data is sent to the signal server 70. If the data type is voice / video, the redirection feeder 1 1 0 sends the data to the media server 2 0, and has a port number in the head memory. The format of the RTP header extension in the execution is variable, such as the type of parameters included, parameter bit length, parameter ordering, and total length of the RTP extension. The second method of the present invention incorporates the functions of the redirection signal server 25 shown in FIG. 3 and the redirected media server shown in FIGS. 4 to 5 into a previous redirection server. 110. Please refer to FIG. 8, the redirection server 110 sends a command to the signal server 70 and sends the multimedia data to the media server 20. Please refer to FIG. 9 for another preferred embodiment of the present invention. Between ports 30 and 40, and the corresponding network screening programs 50 and 60 between ports 30 and 40 ', a signal server 70a and 70b and a media server 2 respectively are added. a and 2 0b, and an internal redirection server 15a and 15b. In addition to the screening programs 50 and 60, there is another redirection server 1 1 10 or a combination of the signal resetting described above with the server and the media redirection server for controlling the network two Data transmission between nodes. 'In this embodiment' endpoints 30 and 40 send commands and multimedia data via TCP or UDP. The commands sent by the original endpoint include voice / video data and public or private IP addresses, serial numbers, and identification numbers of destination ports. For illustration purposes, it is assumed here that endpoint 30 is an original node and endpoint 40 is a destination node. Endpoint 30 sends to a signal server 70a

200425672 V. Description of the invention (15) A command conforming to SIP, Η · 32 3, MGCP, or MEGAC0 standards. The command includes a private or public IP address, a voice / video port number for endpoint 30, and an identification number for destination endpoint 40. After receiving the data, the signal server 7 0 a sends a command to the media server 2 0 a 'Media server 2 0 a returns a response with its own public IP address and port number to the signal server 7 0 a. The signal server 70a sends this information back to the endpoint 30. At the end of the data exchange, the signal server 70a sends a command to the media server 20a to generate a corresponding endpoint M1 for communication with the intended destination endpoint 40. The same applies to Figures 1, 2 and 3. After the connection to the endpoint M 1 is established, the signal server 70 a will send a command to an internal redirection server 15 a with the information of the endpoint M 1. Then refer to FIG. 10, the internal redirection server 15a adds a header extension to the command, and passes the protocol allowed by Transmission Control Protocol (TCP) or any network screening program security protocol through the network. The road screening program, such as the teacher inspection program 5 0 ', sends the modified command to an external redirection server 1 1 0, and the media server 2 a receives multimedia data, such as voice or video, from the endpoint 30. And send this data to the internal redirect server 5a. The internal redirection server 15a adds header extensions to the multimedia data and allows the "protocol" to allow the data to be sent to the redirection server 1 1 by the TCP or any network screening program security protocol. After receiving the data from the redirect server 1 5 a, the redirect server 1 10 determines the location of the packet and detects the type of the data. If the data is a command, the redirect server 1 1 〇 sends the command to the signal Server 7 〇. If the data is multimedia, voice or video, redirect the server 丨 丨 〇

10499twf.ptd Page 20 200425672 6 lx / 1 \ It states that the sending of the five devices 17 and the month will serve to receive the return order. Attach ο ο 2 7 to Qi Liangliang ’s media letter to the 03M section of the endpoint and attach the information to b, pass 15 to 11 彡, and remove the U to serve its MF. Dream The expansion server adds the b head to the reparser and adds it to the resolving server to send the order to the order, and the life extension 9 I believe the expansion. Γ 化 头 b 会 b pair ο 7 格格 会 器 ^ b Serve in May to the ancestral temple to set the service number ο Shi Yikou heavy CO service 4. To the β > Yun ding i ★ heavy | sieve 卩 life ^ V network combiner 4 o'clock end to send information to the body to send video transmission and order the ritual determinant vlnul β ρ memory 1 body f knife Another ο to the medium fixer with multiple servings, the server to serve 60 points, the direction of the weight to the server to check the weight of the medium, sieve compliance: ο, i 5 interchangeable type 10 to check if feasible, then enter the screen ο ο, 3 4 occupies the 3 L0 end, and completes the finisher with the materials ο Genyue b Serving ο 2 i directional device a 15 servo server heavy servo, body servo 20 medium directional device, server ib Change the example and change. For non-professional use, it is necessary to use the same content and practice special spears, etc., the simple model that can be done is more familiar with the case, and the practice of the case is what is inside or outside. The actual execution of the technique, Fan Gengming's case of the best case of the Mingming case is more obvious than the issuing side of Xu Benshi. Although this technique is far from the actual situation, the fixed technique is not in the hair limit. This limitation is based on the fact that all the qualities in the book are only applied to non-surgery but practical, and the technique is not technical, and the technique is not as good as the law. Fang Shiming turned into a master's effect, such as showing people's instructions, etc.

10499twf.ptd

Page 21 200425672 Brief description of the diagram Figure 1 is a block diagram of a preferred server using a network screening program to perform VIP in accordance with the present invention. Figure 2 of a method for transmission of r-beam. Figure 2 is a preferred method according to the present invention. The server translates P through a firewall and a network address. Using a redirect signal translator, NAT, 隹 —v τη-”w (network address

The translator N A T) enters M0 diagram of one party, Bing into V 0 1 P data transmission, which is a special case of Fig. 1. Block diagram of a method Figure 3 is a block diagram of a method according to a preferred implementation of the present invention for a server to enter m = 22 = through a firewall and a proxy, which is a special case of Figure 丨. Figure 4 of the Behr transmission is based on a preferred embodiment of the present invention, which uses a resetter to perform vOIp data transmission through a network screening program. Figure 5 of the media method is a preferred embodiment of the present invention. The embodiment uses a redirection server to transmit data through a firewall and NAT, and a block diagram is a special case of FIG. 4. Figure H of the method Ip root ΛΛ invented a block diagram of a method that uses a redirection server to check the process of network video transmission through IP screening. FIG. 7 is a print output display of a real-time transponder protocol (RTP) format with a header extension according to the present invention. „FIG. 8 is a command and data transmission between a redirection server and a media server according to a preferred embodiment of the present invention.

10499twf.ptd Page 22 200425672

FIG. 9 is a block diagram of a method for transmitting, filtering, and filtering through a network screening program using redirection servers located on both sides of the testing program according to a preferred embodiment of the present invention. Order G I p FIG. 10 shows a print output of a transport control protocol (TCP) format with a header extension according to the present invention. [Illustration of diagrammatic symbols] 15a, 15b: internal redirection server 2 0, 2 0 a, 2 0 b: media server 2 5: redirection signal server 30, 40: endpoint 5 0, 6 0: network Road screening program 7 0, 7 0 a, 7 0 b: Signal server 8 0 · Internet address translator 9 0: Proxy server 1 0 0: Redirection media server 1 1 0: Redirection server Device

10499twf.ptd Page 23

Claims (1)

200425672 VI. Scope of patent application 1. A method for transmitting multimedia data over a network, comprising: a first endpoint sending a first to a redirection server through a first network screening program through a first data transmission protocol; Command, wherein the redirection server obtains information of the first endpoint and stores the information therein; the redirection server sends the first command to a server and receives the first command from the server A first response to the command; and the redirection server sends the first response to the first endpoint, thereby establishing a multimedia data transmission through the first endpoint and the first server. 2. The method for transmitting multimedia data over a network as described in item 1 of the scope of the patent application, wherein the redirection server is a redirection signal server. 3. The method for transmitting multimedia data over a network as described in item 1 of the scope of the patent application, wherein the redirection server is a redirected media server. 4. The method for transmitting multimedia data over a network as described in item 1 of the scope of the patent application, wherein the server includes a signal server. 5. The method for transmitting multimedia data over a network as described in item 4 of the scope of patent application, wherein the signal server is a. 3 2 3 network, (Gatekeeper) ° 6. As described in item 4 of the scope of patent application A method for transmitting multimedia data over a network, wherein the signal server is a Session Initiation Protocol (SIP) proxy server. 7. The method for transmitting multimedia data over a network as described in item 4 of the scope of the patent application, wherein the signal server is a Media Gateway Control Protocol (MGCP) 10499twf.ptd Page 24 200425672 6. Scope of patent application Call agent server. 8. The method for transmitting multimedia data over a network as described in item 4 of the scope of the patent application, wherein the signal server is a media gateway control (MEGAC0) call agent serving a good month. 9. The method for transmitting multimedia data over a network as described in item 4 of the scope of patent application, wherein the server further includes a media server. 10. The method for transmitting multimedia data over a network as described in item 9 of the scope of the patent application, wherein the media server is a software-based telephone gateway. 1 1 · The method for transmitting multimedia data over the network as described in item 9 of the scope of the patent application, wherein the media server is a telephone gateway for transmitting voice / video (Vo IP) in accordance with the Internet Protocol, and the VoIP The phone gateway is a device that converts VoIP signals into signals that the phone system can understand. 1 2. The method for transmitting multimedia data over a network as described in item 9 of the scope of the patent application, wherein a communication between the signal server and the media server supports a real-time transmission protocol (RTP). 1 3. The method for transmitting multimedia data over a network as described in item 1 of the scope of the patent application, wherein the first data transmission protocol is a Transmission Control Protocol (TCP). 14. The method as described in item 1 of the scope of patent application] ^ The method for transmitting multimedia data, wherein the multimedia data is voice or video data. 1 5. The method for transmitting multimedia data over a network as described in item 1 of the scope of patent application, wherein the first network screening program is an enterprise firewall. 16. The method for transmitting multimedia data on a network according to claim 1, wherein the first network screening program is a network address translator (NAT). 10499twf.ptd Page 25 200425672 6. Scope of patent application 1 7. The method for transmitting multimedia data over the network as described in item 1 of the scope of patent application, wherein the first network screening program is a proxy server. 1 8. The method for transmitting multimedia data over a network as described in item 1 of the scope of patent application, further comprising: a second endpoint redirecting to the redirection through a second network screening program through a second data transmission protocol The server sends a second command, wherein the redirection server obtains an information of the second endpoint and stores the information therein; the redirection server sends the second command to the server and receives the second command from the server. A second response to the second command from the server; and the redirection server sends the second response to the second endpoint, thereby establishing the second endpoint and the second server through the second response. Transmission of multimedia data. 19. The method for transmitting multimedia data over a network according to item 18 of the scope of patent application, wherein the multimedia data is stored at the first endpoint and the second endpoint according to the information stored by the first endpoint and the second endpoint. Transmission between the second endpoint, the redirection server, and the server does not require reconfiguration of the first and the second network filters, nor does it need to open > a new port for transmission. 20. The method for transmitting multimedia data over the Internet as described in item 19 of the scope of the patent application, wherein the server supports an instant transmission protocol (RTP). 21. The method for transmitting multimedia data over a network as described in item 19 of the scope of patent application, wherein the multimedia data is transmitted between the first endpoint and the second endpoint, the redirection server, and the server The transmission protocol is TCP. 2 2. Network transmission of multimedia information as described in item 19 of the scope of patent application 10499twf.ptd Page 26 200425672 6. Method of applying for patent coverage, wherein the first endpoint and the second endpoint, the redirection server transmits multimedia data, and the server transmission protocol is the user data protocol ( UDP). 2 3. The method for transmitting multimedia data over a network as described in item 1 of the scope of patent application, wherein the information of the first endpoint is the IP address and Tan number of the first endpoint. 2 4. The method for transmitting multimedia data over a network as described in item 1 of the scope of patent application, wherein the IP address is a public IP address or a private IP address. 2 5. A method for transmitting multimedia data over a network, comprising: a first endpoint sending a command to an internal redirection server through a data transmission protocol through a first signal server; the internal redirection server Sending the command to a second redirect server through a first network screening program; the second redirect server sends the command to a second signal server for processing and receiving from the second A processed command of the signal server; the second redirect server sends the processed command to a third redirect server through a second network screening program; the third redirect server The processed command is sent to a third signal server; the third signal server sends the command to a second endpoint; the first endpoint sends a multimedia data to a standard multimedia transmission protocol A first media server; the first multimedia server sends the multimedia data to the first media server; 10499twf.ptd Page 27 200425672 VI. Patent application orientation server; the first redirect server sends the multimedia data to the second redirect server through the first network screening program; the second The redirection server sends the multimedia data to a second multimedia server for processing; the second media server returns a processed multimedia data to the second redirection server; the second redirection server Sending the processed multimedia data to the third redirection server through the first network screening program; the third redirection server sending the processed multimedia data to a third multimedia server; And the third multimedia server sends the processed multimedia data to the second endpoint, thereby establishing a multimedia data transmission between the second endpoint and the server. 2 6. The method for transmitting multimedia data over a network according to item 18 of the scope of patent application, wherein the multimedia data is transmitted between the first endpoint and the second endpoint according to the information stored in the first endpoint and the second endpoint. The endpoint, the redirect server, and the server do not need to reconfigure the first network and the second network filter, nor need to open a dedicated port for the transmission. 2 7. —A system for transmitting multimedia data between an endpoint and a web server through a redirect server, including: a first transmission channel for an endpoint to a relocation server through a first data transmission protocol The server sends a command, wherein the redirection server obtains information of the first endpoint and stores the information therein; 10499twf.ptd Page 28 200425672 VI. Patent application scope A second transmission channel for the redirect server to send the command to a web server and receive a first of the command from the web server A response; and a multimedia data transmission channel established when the redirection server sends the first response to the first endpoint, where the multimedia data transmission channel is allowed to pass through the first endpoint and the network server. 2 8. The system for transmitting multimedia data between an endpoint and a web server through a redirect server as described in item 27 of the scope of patent application, wherein the redirect server is a redirect signal server. 2 9. The system for transmitting multimedia data between an endpoint and a web server through a redirect server as described in item 27 of the scope of patent application, wherein the redirect server is a redirect media server. 30. The system for transmitting multimedia data between an endpoint and a web server through a redirection server as described in item 27 of the scope of patent application, wherein the web server includes a signal server. 31. The system for transmitting multimedia data between an endpoint and a web server through a redirection server as described in item 30 of the scope of patent application, wherein the signal server is a network. 3 2 3 Shou, a Dialogue Protocol (SIP) proxy server, a Media Gateway Control Protocol (MGCP) call proxy server, or a Mass Gateway Control (MEGAC0) call proxy server. 3 2. The system for transmitting multimedia data between an endpoint and a web server via a redirect server as described in item 30 of the scope of patent application, wherein the server further includes a media server. 3 3. Pass the redirect server as described in item 32 of the scope of patent application 10499twf.ptd Page 29 200425672 6. Scope of Patent Application System for transmitting multimedia data between endpoint and web server, where the media server is a software-based telephone gateway. 3 4. The system for transmitting multimedia data between an endpoint and a web server through a redirection server as described in item 32 of the scope of patent application, wherein the media server is an Internet protocol-compliant voice / video (V ο IP) telephone gateway, wherein the compliant VoIP telephone gateway is a device for translating VoIP signals into signals understandable by a telephone system. 3 5. The system for transmitting multimedia data between an endpoint and a web server through a redirect server as described in item 32 of the scope of patent application, wherein the communication between the signal server and the media server is in progress. Supports a real-time transfer protocol (RTP). 10499twf.ptd Page 30