CN108881149B - Access method and system of video telephone equipment - Google Patents
Access method and system of video telephone equipment Download PDFInfo
- Publication number
- CN108881149B CN108881149B CN201711487205.7A CN201711487205A CN108881149B CN 108881149 B CN108881149 B CN 108881149B CN 201711487205 A CN201711487205 A CN 201711487205A CN 108881149 B CN108881149 B CN 108881149B
- Authority
- CN
- China
- Prior art keywords
- video
- terminal equipment
- transmission channel
- data transmission
- proxy server
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/146—Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention provides an access method and a system of video telephone equipment, wherein the method comprises the following steps: h.323 terminal equipment sends a call request to a proxy server, wherein the call request carries the video networking ID of the video networking terminal equipment; the proxy server sends a video networking protocol call signaling to the video networking terminal equipment according to the video networking ID, receives a returned call response, and sends call response information to the H.323 terminal equipment according to the call response; h.323 terminal equipment establishes a first data transmission channel with a proxy server according to the call response information; the proxy server establishes a second data transmission channel with the video network terminal equipment, receives video telephone data of the video network terminal equipment through the second data transmission channel, and forwards the data to the H.323 terminal equipment through the first data transmission channel, so that the H.323 terminal equipment and the video network terminal equipment based on different protocols can directly carry out video telephone.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to an access method and an access system of video telephone equipment.
Background
The video networking is an important milestone for network development, and is a network system which can realize real-time high-definition video transmission and push a plurality of internet applications to high-definition video and high-definition face-to-face.
Video networking video telephone is one of the main services provided by video networking, and through a V2V protocol (video networking To video networking protocol), transmission of high-fidelity video telephone audio data and high-definition video data can be realized among a plurality of video networking devices.
However, the video networking device is a device operating at a link layer, and data of the device is also transmitted in a network where the device is located by using a two-layer network protocol, while the h.323 video telephone which is common in the market performs data interaction at three layers of the network based on protocols such as TCP/UDP/IP. The above two types of videophones cannot achieve service interworking. For example, a user using a video telephone in the video network cannot directly dial a video telephone to a user using an h.323 video telephone, and a user using an h.323 video telephone cannot directly dial a video telephone to a user using a video telephone in the video network, which seriously affects normal communication between users.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide an access method for a video telephone device and an access system for a video telephone device, which overcome or at least partially solve the above problems.
In order to solve the above problems, an embodiment of the present invention discloses an access method for a videophone device, where the videophone device includes a video network terminal device and an h.323 terminal device, and the video network terminal device and the h.323 terminal device are respectively in communication connection with a proxy server, and the method includes:
h.323 terminal equipment sends a call request to a proxy server, wherein the call request carries the video networking ID of the video networking terminal equipment;
the proxy server sends a video networking protocol call signaling to the video networking terminal equipment according to the video networking ID, and receives a call response returned by the video networking terminal equipment aiming at the call signaling;
the proxy server sends call response information to the H.323 terminal equipment according to the call response;
h.323 terminal equipment establishes a first data transmission channel with a proxy server according to the call response information;
the proxy server establishes a second data transmission channel with the video networking terminal equipment and receives video telephone data sent by the video networking terminal equipment through the second data transmission channel;
and the proxy server forwards the video telephone data to H.323 terminal equipment through the first data transmission channel.
Optionally, after the step of sending the call request to the proxy server by the h.323 terminal device, the method further includes:
and the proxy server creates a session proxy entity according to the call request.
Optionally, the step of sending, by the proxy server, an internet protocol call signaling to the internet of view terminal device according to the internet of view ID includes:
the session proxy entity extracts the video networking ID in the request;
the session agent entity determines a target video network terminal device according to the video network ID;
and the session proxy entity sends video networking protocol call signaling to the target video networking terminal equipment.
Optionally, the step of establishing, by the h.323 terminal device, a first data transmission channel with the proxy server according to the call response information includes:
h.323 terminal equipment confirms the format information of the video telephone data received, and the address information of the video telephone data of transmission of the agent entity of conversation;
h.323 terminal equipment sends own IP address and port information to the session proxy entity so as to establish a first data transmission channel with the session proxy entity.
Optionally, the step of establishing, by the proxy server, a second data transmission channel with the terminal device of the video networking includes:
the session agent entity obtains the address information of the video network terminal equipment for transmitting the video telephone data;
and the session agent entity establishes a second data transmission channel between the session agent entity and the video networking terminal equipment according to the address information of the video networking terminal equipment for transmitting the video telephone data.
Optionally, the videophone data includes audio data and/or video data, and the step of forwarding the videophone data to the h.323 terminal device by the proxy server through the first data transmission channel includes:
and the session proxy entity forwards the audio data and/or the video data to the H.323 terminal equipment through the first data transmission channel.
Optionally, the method further comprises:
h.323 terminal equipment sends the request of ending the present conversation to the conversation agent entity, in order to close the said first data transmission channel;
and the session proxy entity closes the second data transmission channel according to the request so as to end the current session.
In order to solve the above problems, an embodiment of the present invention discloses an access method for a videophone device, where the videophone device includes a video network terminal device and an h.323 terminal device, and the video network terminal device and the h.323 terminal device are respectively in communication connection with a proxy server, and the method includes:
the method comprises the steps that video network terminal equipment sends a call request to a proxy server, wherein the call request carries a video network ID of H.323 terminal equipment;
the proxy server sends an H.323 protocol call signaling to the H.323 terminal equipment according to the video networking ID, and receives a call response returned by the H.323 terminal equipment aiming at the call signaling;
the proxy server sends call response information to the video network terminal equipment according to the call response;
the video network terminal equipment establishes a first data transmission channel with the proxy server according to the call response information;
the proxy server establishes a second data transmission channel with the H.323 terminal equipment, and receives the video telephone data sent by the H.323 terminal equipment through the second data transmission channel;
and the proxy server forwards the video telephone data to video network terminal equipment through the first data transmission channel.
In order to solve the above problems, an embodiment of the present invention discloses an access system for a videophone device, where the system includes a video network terminal device, an h.323 terminal device, and a proxy server, and the video network terminal device and the h.323 terminal device are respectively in communication connection with the proxy server.
The H.323 terminal equipment is used for sending a call request to the proxy server, wherein the call request carries the video networking ID of the video networking terminal equipment;
the proxy server is used for sending a video networking protocol call signaling to the video networking terminal equipment according to the video networking ID and receiving a call response returned by the video networking terminal equipment aiming at the call signaling; sending call response information to H.323 terminal equipment according to the call response;
the H.323 terminal equipment is also used for establishing a first data transmission channel between the terminal equipment and the proxy server according to the call response information;
the proxy server is also used for establishing a second data transmission channel between the proxy server and the video networking terminal equipment and receiving video telephone data sent by the video networking terminal equipment through the second data transmission channel; and forwarding the video telephone data to H.323 terminal equipment through the first data transmission channel.
In order to solve the above problems, an embodiment of the present invention discloses an access system for a videophone device, where the system includes a video network terminal device, an h.323 terminal device, and a proxy server, and the video network terminal device and the h.323 terminal device are respectively in communication connection with the proxy server.
The video network terminal equipment is used for sending a call request to the proxy server, and the call request carries the video network ID of the H.323 terminal equipment;
the proxy service is used for sending an H.323 protocol call signaling to the H.323 terminal equipment according to the video networking ID and receiving a call response returned by the H.323 terminal equipment aiming at the call signaling; sending call response information to the video networking terminal equipment according to the call response;
the video network terminal equipment is also used for establishing a first data transmission channel between the video network terminal equipment and the proxy server according to the call response information;
the proxy server is also used for establishing a second data transmission channel between the proxy server and the H.323 terminal equipment and receiving the video telephone data sent by the H.323 terminal equipment through the second data transmission channel; and forwarding the video telephone data to video network terminal equipment through the first data transmission channel.
Compared with the background art, the embodiment of the invention has the following advantages:
the embodiment of the invention configures a proxy server between the video network terminal equipment and the H.323 terminal equipment to enable the proxy server to become a network node for coupling the video network and the Internet in a physical network, thereby realizing the functions of back-to-back protocol conversion, data stream control forwarding, state maintenance and the like of the H.323 protocol and the video network protocol at the node, and enabling the H.323 terminal equipment and the video network terminal equipment based on different protocols to directly carry out video telephone.
Drawings
Fig. 1 is a flowchart illustrating a first step of an access method of a video telephone apparatus according to a first embodiment of the present invention;
FIG. 2 is a networking schematic of a video network of the present invention;
FIG. 3 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 4 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 5 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
fig. 6 is a signaling flowchart of a first embodiment of an access method of a video telephone apparatus according to the present invention;
fig. 7 is a flowchart illustrating steps of a second embodiment of an access method of a video telephone apparatus according to the present invention;
fig. 8 is a signaling flowchart of a second embodiment of an access method of a video telephone apparatus according to the present invention;
fig. 9 is a block diagram of an access system of a video telephone device according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, a flowchart illustrating a first step of an access method embodiment of a video telephony device according to the present invention is shown, where the video telephony device may include a video networking terminal device and an h.323 terminal device, and the video networking terminal device and the h.323 terminal device may be respectively in communication connection with a proxy server, and the method specifically includes the following steps:
it should be noted that the method can be applied to video networking. The video networking is an important milestone for network development, and is a network system which can realize real-time high-definition video transmission and push a plurality of internet applications to high-definition video and high-definition face-to-face.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
In order to make the embodiments of the present invention better understood by those skilled in the art, a description of the video network is first provided below.
The video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
Fig. 2 is a schematic diagram of a video network according to the present invention. As can be seen from fig. 2, the video network is divided into two parts, an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Fig. 3 is a schematic diagram of a hardware structure of a node server according to the present invention. The node server mainly comprises a network interface module 301, a switching engine module 302, a CPU module 303 and a disk array module 304;
the network interface module 301, the CPU module 303, and the disk array module 304 all enter the switching engine module 302; the switching engine module 302 performs an operation of looking up the address table 305 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of a corresponding packet buffer 306 according to the packet's steering information; if the queue of the packet buffer 306 is nearly full, it is discarded; the switching engine module 302 polls all packet buffer queues and forwards if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 304 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 303 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 305 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring a disk array module 304.
Fig. 4 is a schematic diagram of a hardware structure of an access switch according to the present invention. The access switch mainly comprises a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403 and a CPU module 404;
wherein, the packet (uplink data) coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 403, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 402 enters the switching engine module 403; the data packet coming from the CPU module 404 enters the switching engine module 403; the switching engine module 403 performs an operation of looking up the address table 406 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 403 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 407 in association with the stream-id; if the queue of the packet buffer 407 is nearly full, it is discarded; if the packet entering the switching engine module 403 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 407 according to the packet guiding information; if the queue of the packet buffer 407 is nearly full, it is discarded.
The switching engine module 403 polls all packet buffer queues, which in this embodiment of the invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 408 is configured by the CPU module 404 to generate tokens for packet buffer queues going to the upstream network interface from all downstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 404 is mainly responsible for protocol processing with the node server, configuration of the address table 406, and configuration of the code rate control module 408.
The apparatus of the access network portion further comprises an ethernet protocol gateway. Fig. 5 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention. The ethernet coordination gateway mainly includes a network interface module (a downlink network interface module 501 and an uplink network interface module 502), a switching engine module 503, a CPU module 504, a packet detection module 505, a code rate control module 508, an address table 506, a packet buffer 507, a MAC adding module 509, and a MAC deleting module 510.
Wherein, the data packet coming from the downlink network interface module 501 enters the packet detection module 505; the packet detection module 505 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deleting module 510 subtracts MAC DA, MAC SA, length or frame type (2byte), and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 501 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
The terminal of the access network part mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
In the embodiment of the invention, the video network terminal equipment can be video telephone equipment based on video network, and the H.323 terminal equipment can be H.323 video telephone equipment based on the existing internet.
In order to realize the communication between the video network terminal device and the H.323 terminal device, a proxy server can be provided, and the video network terminal device and the H.323 terminal device are respectively accessed to the proxy server.
In the embodiment of the invention, when the H.323 terminal equipment calls the video network terminal equipment, a call request can be sent to the proxy server, and the call request can carry the video network ID of the video network terminal equipment to be called.
In the embodiment of the invention, after receiving the call request of a certain H.323 terminal device, the proxy server can create a session proxy entity V2V UAS according to the call request, and the V2V UAS realizes services such as protocol conversion between the current H.323 terminal device and the video network terminal device.
Therefore, in a specific implementation, the h.323 terminal device may send a q.931/h.225setup Called party number request to the V2V UAS according to the h.323 protocol, where the value of Called party number is the video network ID of the video network terminal device.
H.323 is a set of standards that provide real-time audio, video, and data communications over packet networks, and is part of the series of h.32x protocols established by ITU-T to provide multimedia communications over various networks.
102, the proxy server sends a video networking protocol call signaling to the video networking terminal equipment according to the video networking ID, and receives a call response returned by the video networking terminal equipment aiming at the call signaling;
in the embodiment of the invention, after receiving the call request of the H.323 terminal equipment, the proxy server can send the call signaling to the video networking terminal equipment according to the video networking ID carried in the call request and the video networking protocol standard, and receive the call response returned by the video networking terminal equipment aiming at the call signaling.
In a specific implementation, the session proxy entity V2V UAS may extract the view network ID in the request, and then determine the target view network terminal device according to the view network ID, so as to send the view network protocol call signaling to the target view network terminal device according to the view network protocol standard.
It should be noted that, when processing the q.931/h.225setup Called party number request signaling sent by the h.323 terminal device, the V2V UAS may also respond to the h.323 terminal device with an o.931/h.225alerting ring response to inform that the Called end of the h.323 terminal device has a Called alert ring when receiving the request signaling.
103, the proxy server sends call response information to the H.323 terminal equipment according to the call response;
in the embodiment of the present invention, after receiving the response of the video networking terminal device to the video networking protocol call signaling, the V2V UAS may consider that the video networking terminal device has picked up the telephone to make a response, so that the V2V UAS may send call response information to the h.323 terminal device.
In a specific implementation, the V2V UAS may complete h.225 negotiation of the h.323 protocol cluster by sending q.931/h.225connect signaling to the h.323 terminal device, thereby sending call answering information.
in the embodiment of the invention, after completing the h.225 negotiation, the h.323 terminal device may determine format information of the received videophone data and address information of the videophone data transmitted by the V2V UAS, and then send its own IP address and port information to the V2V UAS, so as to establish a first data transmission channel with the V2V UAS.
In a specific implementation, the h.323 terminal device may create an h.245 session control negotiation process after completing the h.225 negotiation. In the h.323 videophone call process, the h.245 protocol can be used for device capability exchange, data channel negotiation, data channel control, etc. between two h.323 terminal devices. The two devices use the h.323 protocol to realize the function of the videophone, and the h.245 protocol must be used to negotiate the IP address and port information of the RTP/RTCP channel for transmitting the audio and video data and the audio and video data format that the two devices can receive, and the process of acquiring the above information is called h.245 session control negotiation.
In the embodiment of the invention, after the H.245 session control negotiation is completed, the H.323 terminal equipment can also perform master-slave negotiation and channel negotiation.
Master-slave negotiation may determine the master-slave relationship between the various devices during a session with an end-point device of the video networking. Specifically, when performing h.245 session control negotiation, the capability negotiation signaling may carry a value of the terminal, and the master-slave relationship between two terminal devices may be determined by comparing the magnitude relationship between the received value and the local value. Generally, the end with the larger value is the calling end, and the end with the smaller value is the called end.
According to the master-slave relationship, a channel negotiation can be initiated by a calling end (i.e. one end of the h.323 terminal equipment) to send the IP address and port information of an RTP/RTCP channel for transmitting audio/video data, so as to establish a first data transmission channel between the h.323 terminal equipment and the V2V UAS.
in the embodiment of the invention, the V2V UAS may further establish a second data transmission channel with the terminal device of the video network after establishing the first data transmission channel with the h.323 terminal device. The video network terminal device may send video telephony data, which may include audio data and/or video data, to the V2V UAS via the second data transmission channel.
In the embodiment of the present invention, the V2V UAS may obtain address information of the video network terminal device for transmitting the video telephone data, and establish a second data transmission channel with the video network terminal device according to the address information.
In specific implementation, the V2V UAS may send 8704 signaling to the video networking terminal device, implement negotiation with an audio/video channel between the video networking terminal device, and obtain address information of the video networking terminal device for transmitting the video telephony data.
And 106, the proxy server forwards the video telephone data to the H.323 terminal equipment through the first data transmission channel.
In the embodiment of the invention, through the channel negotiation with the H.323 terminal equipment, the V2V UAS opens the information such as the IP address and the port corresponding to the H.323 protocol cluster on the Internet, and meanwhile, through the negotiation with the video networking terminal equipment, the V2V UAS determines the channel information for audio and video data transmission between the video networking protocol and the video networking terminal equipment. The V2V UAS can receive and transmit RTP/RTCP control information on the Internet, and meanwhile, receives the online state information query of the video network terminal equipment.
Therefore, when a session is carried out, the video network terminal device may transmit audio data and/or video data to the V2V UAS through the second data transmission channel, and then the V2V UAS may forward the audio data and/or video data to the h.323 terminal device through the first data transmission channel, thereby implementing a video telephone service between the h.323 terminal device and the video network terminal device.
In the embodiment of the present invention, the h.323 terminal device may further send a request for ending the current session to the V2V UAS, so as to close the first data transmission channel, and after receiving the request, the V2V UAS may close the second data transmission channel according to the request, so as to end the current session.
In the embodiment of the invention, the H.323 terminal equipment can close the session with the called terminal by sending Q.931/H.2458 requestChannelClose signaling to the V2V UAS. Specifically, the h.323 end device may close the h.323 protocol session with the V2V UAS by sending the above signaling, and then the V2V UAS may send the video networking signaling 8714/8785/8708 to the video networking end device to end the session with the video networking end device over the video networking.
It should be noted that, after ending the current session, the h.323 terminal device may also terminate the h.245 control channel with the V2V UAS by sending endsessionCommand signaling, and close the h.225 protocol control channel in the respective direction.
In the embodiment of the invention, a proxy server is configured between video network terminal equipment and H.323 terminal equipment, so that the proxy server becomes a network node for coupling the video network and the Internet in a physical network, thereby realizing the functions of back-to-back protocol conversion, data stream control forwarding, state maintenance and the like of an H.323 protocol and a video network protocol at the node, and enabling the H.323 terminal equipment and the video network terminal equipment based on different protocols to directly carry out video telephone.
For the convenience of understanding, the access method of the videophone device (h.323 terminal device calling video network terminal device) of the present invention is described below as a complete example.
Fig. 6 is a signaling flowchart of a first embodiment of an access method of a video telephone apparatus according to the present invention. The video telephone equipment comprises H.323 terminal equipment and video network terminal equipment, wherein the H.323 terminal equipment and the video network terminal equipment can be respectively in communication connection with a PROXY server VH PROXY.
1. When the H.323 terminal device calls the video network terminal device, the H.323 terminal device sends a Q.931/H.225setup Called party number request to the Session agent entity V2V UAS in VH PROXY (step (1) of FIG. 6). When each H.323 terminal device is in a video telephone call with the video networking terminal device, the VH PROXY can temporarily create V2V UAS for services such as protocol conversion between the current H.323 terminal device and the video networking terminal device. When the session is over, the V2V UAS is released. The V2V UAS, while processing the q.931/h.225setup Called party number request signaling, may extract the video network ID of the calling video network end device and respond with a q.931/h.225 alerting ringing response (step (2) of fig. 6). Then according to the above-mentioned video network ID, sending video network protocol 8e01(v2v Id) (step (3) of FIG. 6) calling signaling to call the video network terminal equipment on the video network. The video network terminal device may respond to the 8e02V2V signaling after receiving the above-mentioned call signaling and processing it correctly (step (4) of fig. 6). After receiving the result of the video networking call signaling, the V2V UAS sends q.931/h.225connect signaling (step (5) in fig. 6) to the h.323 terminal device, and completes the h.225 negotiation of the h.323 protocol cluster.
2. And the H.323 terminal equipment creates an H.245 session control negotiation process according to the H.225 negotiation result, processes the capability negotiation shown in the step (6) and the step (7) in the figure 6 and acquires the capability of the video network terminal equipment.
3. The H.323 terminal equipment performs the master-slave negotiation in the step (8) and the step (9) in the figure 6, and determines the master-slave relationship of the video network terminal equipment in the session process.
4. According to the master-slave relationship, the calling end (in the conference organization process of this embodiment, the h.323 terminal device) first initiates the channel negotiation, and the channel negotiation process from step (10) to step (15) is performed.
5. And the V2V UAS sends 8704 signaling to negotiate an audio/video channel on the video network between the video network terminal equipment and the V2V UAS according to the channel negotiation result (step (16) -step (17) in the figure 6).
6. The V2V UAS completes the channel negotiation with the H.323 terminal equipment, and opens the information such as IP/port of the corresponding H.323 protocol cluster on the Internet; meanwhile, channel information between the terminal equipment and the video networking equipment under the video networking protocol is negotiated. The V2V UAS can send and receive RTP/RTCP control information over the internet while accepting presence information queries from the view network end devices (step (18) -step (20) in fig. 6).
7. The V2V UAS forwards the audio and video data sent by the video network terminal device received by 2001/2002 protocol to the H.323 terminal device by RTP protocol load (step (21) -step (24) in figure 6).
8. When the current session is ended, the H.323 terminal equipment closes the session with the called terminal by sending Q.931/H.24arequesChannelClose signaling. In fig. 6, the steps (25) - (30) and (33) - (38) are a procedure of terminating the h.323 protocol session between the h.323 terminal device and the V2V UAS (including a recycling procedure of data channel resources such as RTP and RTCP), and the steps (31) - (32) are a procedure of terminating the session between the V2V UAS and the video network terminal device by sending video network 8714/8785/8708 signaling and receiving 8d03 signaling.
9. The h.323 terminal equipment terminates the h.245 control channel with the V2V UAS by sending an endsessionCommand signaling through step (39).
10. The H.323 terminal equipment closes the H.225 protocol control channel in the respective direction through the steps (40) to (41).
Referring to fig. 7, a flowchart illustrating steps of a second embodiment of an access method for a videophone device according to the present invention is shown, where the videophone device may include a video network terminal device and an h.323 terminal device, and the video network terminal device and the h.323 terminal device may be respectively in communication connection with a proxy server, and the method specifically includes the following steps:
in the embodiment of the invention, when the terminal equipment of the video network calls the H.323 terminal equipment, a call request can be sent to the proxy server, and the request can carry the video network ID of the H.323 terminal equipment. The video network ID of the h.323 terminal device may be an ID registered in advance for the terminal device on the video network.
in the embodiment of the present invention, after receiving the call request, the proxy server may extract the internet of view ID of the h.323 terminal device, create a session proxy entity V2V UAS, make a back-to-back h.323 protocol call by the V2V UAS, and receive a call response returned by the h.323 terminal device for the call.
in the embodiment of the invention, after receiving the call response of the H.323 terminal equipment, the proxy server can send the call response information to the video network terminal equipment to know that the video network terminal equipment currently establishes the session connection between the video network terminal equipment and the H.323 terminal equipment.
in the embodiment of the invention, the proxy server can send a request signaling to the video network terminal equipment to request the video network terminal equipment to open a channel for transmitting video telephone data. After receiving the request signaling, the video network terminal device may feed back information of the opened channel to the proxy server.
in the embodiment of the invention, the proxy server can establish the second data transmission channel with the H.323 terminal equipment by carrying out processes such as capability negotiation, master-slave negotiation, channel negotiation and the like.
After the steps, an RTP/RTCP channel between the proxy server and the H.323 terminal equipment is already established, and an audio and video channel between the proxy server and the video network terminal equipment is also already established, so that the forwarding of audio and video data can be realized between the H.323 terminal equipment and the video network terminal equipment in a back-to-back transceiving mode through the proxy server through the two established channels.
For the convenience of understanding, the access method of the videophone device (videonetworking terminal device calls h.323 terminal device) of the present invention is described below as a complete example.
Fig. 8 is a signaling flowchart of a second embodiment of an access method of a video telephone device according to the present invention. The video telephone equipment comprises H.323 terminal equipment and video network terminal equipment, wherein the H.323 terminal equipment and the video network terminal equipment can be respectively in communication connection with a PROXY server VH PROXY.
1. When the terminal device of the video network calls the h.323 terminal device, the terminal device of the video network can signal the video network ID registered on the video network by the called h.323 terminal device through step (1)8e01 in fig. 8.
2. The PROXY VH PROXY may query the registration ID of the h.323 terminal device after receiving the call request of 8e01, and create a session PROXY entity V2V UAS after querying the relevant registration information. The V2V UAS makes H.323 protocol call back to back, and sends Q.931/H225setup signaling in step (2).
3. And (3) the H.323 terminal equipment receives the call request, and sends Q.931/h225 alerting information or/and Q.931/H.225processing signaling in the step (3) to the VH PROXY.
4. After the verification of the H.323 terminal equipment is passed, Q.931/H.225connect signaling in step (4) can be sent to inform that the current H.323 call establishment of VH PROXY is successful.
5. VH PROXY receives h.323 call success signaling and responds to the video network end device calling result through 8e02 (step (5) in fig. 8).
6. VH PROXY requests the calling end video network terminal device to open the audio/video channel through 8704 (step (6) in fig. 8).
7. The video network terminal device feeds back the opened audio/video channel information to the VH PROXY through 8e02 signaling (step (7) in fig. 8).
8. And (3) after the VH PROXY receives the Q.931/H225connect signaling of the H.323 terminal equipment, performing the steps (8) to (17) to perform capability negotiation/master-slave negotiation/channel negotiation with the H.323 terminal equipment, and establishing a data transmission channel between the H.323 terminal equipment and the VH PROXY.
9. After the above steps, the RTP/RTCP channel between the proxy server and the h.323 terminal device is already established, and the audio/video channel between the proxy server and the video network terminal device is also already established, so that the audio/video data can be forwarded between the h.323 terminal device and the video network terminal device through the two established channels in a back-to-back transceiving manner through the proxy server (step (18) -step (24) in fig. 8).
10. The video network terminal equipment ends the session through 8714/8785/8708 signaling, and after the VH PROXY receives the request, the V2V UAS sends 8d03 signaling to end the session with the video network terminal equipment (step (25) -step (26) in fig. 8).
11. VH PROXY closes the session with the h.323 terminal device according to the videophone close flow of the h.323 protocol (step (27) -step (41) in fig. 8).
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 9, which shows a block diagram of an embodiment of an access system of a videophone device according to the present invention, the system 900 may include a video network terminal device 901, an h.323 terminal device 902, and a proxy server 903, where the video network terminal device 901 and the h.323 terminal device 902 may be respectively connected to the proxy server 903 in a communication manner.
In the embodiment of the present invention, the h.323 terminal device 902 is configured to send a call request to the proxy server 903, where the call request may carry a video network ID of the video network terminal device 901;
the proxy server 903 is configured to send an internet protocol call signaling to the internet of view terminal device 901 according to the internet of view ID, and receive a call response returned by the internet of view terminal device 901 for the call signaling; sending call response information to the H.323 terminal equipment 902 according to the call response;
the h.323 terminal equipment 902 is further configured to establish a first data transmission channel with the proxy server 903 according to the call response information;
the proxy server 903 is further configured to establish a second data transmission channel with the video networking terminal device 901, and receive video telephony data sent by the video networking terminal device 901 through the second data transmission channel; and forwarding the video telephone data to the h.323 terminal equipment 902 through the first data transmission channel.
In this embodiment of the present invention, the proxy server 903 is further configured to create a session proxy entity 904 according to the call request.
In this embodiment of the present invention, the session proxy entity 904 is configured to extract the video network ID in the request, determine the target video network terminal device 901 according to the video network ID, and send a video network protocol call signaling to the target video network terminal device 901.
In this embodiment of the present invention, the h.323 terminal equipment 902 is further configured to determine format information of received videophone data, and transmit address information of the videophone data by the session proxy entity 904; the IP address and port information of itself are sent to the session proxy entity 904 to establish a first data transmission channel with the session proxy entity 904.
In this embodiment of the present invention, the session proxy entity 904 is further configured to obtain address information of the video network terminal device 901 for transmitting the video telephone data; and establishing a second data transmission channel with the video network terminal equipment 901 according to the address information of the video network terminal equipment 901 for transmitting the video telephone data.
In this embodiment of the present invention, the session proxy entity 904 is further configured to forward the audio data and/or the video data to the h.323 terminal device 902 through the first data transmission channel.
In this embodiment of the present invention, the h.323 terminal device 902 is further configured to send a request for ending the current session to the session proxy entity 904, so as to close the first data transmission channel;
the session proxy entity 904 is further configured to close the second data transmission channel according to the request, so as to end the current session.
In another embodiment of the present invention, the video network terminal device 901 is configured to send a call request to the proxy server 903, where the call request may carry a video network ID of the h.323 terminal device 902;
the proxy service is used for sending an H.323 protocol call signaling to the H.323 terminal equipment 902 according to the video networking ID and receiving a call response returned by the H.323 terminal equipment 902 aiming at the call signaling; sending call response information to the video network terminal device 901 according to the call response;
the terminal device 901 of the video network is further configured to establish a first data transmission channel with the proxy server 903 according to the call response information;
the proxy server 903 is further configured to establish a second data transmission channel with the h.323 terminal device 902, and receive the videophone data sent by the h.323 terminal device 902 through the second data transmission channel; and forwarding the video telephone data to a video network terminal device 901 through the first data transmission channel.
For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above detailed description is made on the access method of a video telephone device and the access system of a video telephone device provided by the present invention, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (5)
1. An access method of a video telephone device is characterized in that the video telephone device comprises a video network terminal device and an H.323 terminal device, the video network terminal device and the H.323 terminal device are respectively in communication connection with a proxy server, and the method comprises the following steps:
h.323 terminal equipment sends a call request to a proxy server, wherein the call request carries the video networking ID of the video networking terminal equipment;
the proxy server creates a session proxy entity according to the call request;
the proxy server sends a video networking protocol call signaling to the video networking terminal equipment according to the video networking ID, and receives a call response returned by the video networking terminal equipment aiming at the call signaling;
the proxy server sends call response information to the H.323 terminal equipment according to the call response;
h.323 terminal equipment establishes a first data transmission channel with a proxy server according to the call response information; wherein, the first data transmission channel comprises a data transmission channel between the session proxy entity and the H.323 terminal equipment;
the proxy server establishes a second data transmission channel with the video networking terminal equipment and receives video telephone data sent by the video networking terminal equipment through the second data transmission channel; the second data transmission channel comprises a data transmission channel between the session proxy entity and the video network terminal equipment;
the proxy server forwards the video telephone data to H.323 terminal equipment through the first data transmission channel;
wherein, the step that the proxy server sends the video networking protocol call signaling to the video networking terminal equipment according to the video networking ID comprises the following steps:
the session proxy entity extracts the video networking ID in the request;
the session agent entity determines a target video network terminal device according to the video network ID;
the session agent entity sends a video networking protocol call signaling to the target video networking terminal equipment;
the step of establishing a first data transmission channel between the H.323 terminal device and the proxy server according to the call response information comprises the following steps:
h.323 terminal equipment confirms the format information of the video telephone data received, and the address information of the video telephone data of transmission of the agent entity of conversation;
h.323 terminal equipment sends own IP address and port information to the session proxy entity so as to establish a first data transmission channel with the session proxy entity.
2. The method of claim 1, wherein the step of the proxy server establishing a second data transmission channel with the end device of the video network comprises:
the session agent entity obtains the address information of the video network terminal equipment for transmitting the video telephone data;
and the session agent entity establishes a second data transmission channel between the session agent entity and the video networking terminal equipment according to the address information of the video networking terminal equipment for transmitting the video telephone data.
3. The method according to claim 2, wherein said videotelephony data comprises audio data and/or video data, and said step of said proxy server forwarding said videotelephony data to an h.323 terminal device via said first data transmission channel comprises:
and the session proxy entity forwards the audio data and/or the video data to the H.323 terminal equipment through the first data transmission channel.
4. The method of claim 1, further comprising:
h.323 terminal equipment sends the request of ending the present conversation to the conversation agent entity, in order to close the said first data transmission channel;
and the session proxy entity closes the second data transmission channel according to the request so as to end the current session.
5. An access system of a video telephone device is characterized in that the system comprises a video network terminal device, an H.323 terminal device and a proxy server, wherein the video network terminal device and the H.323 terminal device are respectively in communication connection with the proxy server;
the H.323 terminal equipment is used for sending a call request to the proxy server, wherein the call request carries the video networking ID of the video networking terminal equipment;
the proxy server is also used for creating a session proxy entity according to the call request;
the session agent entity is used for extracting the video networking ID in the request, determining target video networking terminal equipment according to the video networking ID, and sending a video networking protocol call signaling to the target video networking terminal equipment;
the proxy server is used for sending a video networking protocol call signaling to the video networking terminal equipment according to the video networking ID and receiving a call response returned by the video networking terminal equipment aiming at the call signaling; sending call response information to H.323 terminal equipment according to the call response;
the H.323 terminal equipment is also used for establishing a first data transmission channel between the terminal equipment and the proxy server according to the call response information; wherein, the first data transmission channel comprises a data transmission channel between the session proxy entity and the H.323 terminal equipment;
the proxy server is also used for establishing a second data transmission channel between the proxy server and the video networking terminal equipment and receiving video telephone data sent by the video networking terminal equipment through the second data transmission channel; the video telephone data is forwarded to H.323 terminal equipment through the first data transmission channel, wherein the second data transmission channel comprises a data transmission channel between the session agent entity and the video network terminal equipment;
when the proxy server is configured to send a video networking protocol call signaling to the video networking terminal device according to the video networking ID, the proxy server is specifically configured to:
the session proxy entity extracts the video networking ID in the request;
the session agent entity determines a target video network terminal device according to the video network ID;
the session agent entity sends a video networking protocol call signaling to the target video networking terminal equipment;
when the h.323 terminal device is configured to establish the first data transmission channel with the proxy server according to the call response information, the h.323 terminal device is specifically configured to:
h.323 terminal equipment confirms the format information of the video telephone data received, and the address information of the video telephone data of transmission of the agent entity of conversation;
h.323 terminal equipment sends own IP address and port information to the session proxy entity so as to establish a first data transmission channel with the session proxy entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487205.7A CN108881149B (en) | 2017-12-29 | 2017-12-29 | Access method and system of video telephone equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487205.7A CN108881149B (en) | 2017-12-29 | 2017-12-29 | Access method and system of video telephone equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108881149A CN108881149A (en) | 2018-11-23 |
| CN108881149B true CN108881149B (en) | 2021-04-23 |
Family
ID=64325844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487205.7A Active CN108881149B (en) | 2017-12-29 | 2017-12-29 | Access method and system of video telephone equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108881149B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889516B (en) * | 2019-02-14 | 2021-10-08 | 视联动力信息技术股份有限公司 | Method and device for establishing session channel |
| CN110572606A (en) * | 2019-08-13 | 2019-12-13 | 视联动力信息技术股份有限公司 | Video telephone calling method and device |
| CN110798450B (en) * | 2019-09-25 | 2022-08-23 | 视联动力信息技术股份有限公司 | Audio and video data processing method and device and storage medium |
| CN111614927A (en) * | 2020-04-09 | 2020-09-01 | 视联动力信息技术股份有限公司 | Video session establishment method, device, electronic equipment and storage medium |
| CN113810476A (en) * | 2021-08-30 | 2021-12-17 | 武汉海昌信息技术有限公司 | Signaling safety transmission method and device for industrial internet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303359A (en) * | 2015-05-14 | 2017-01-04 | 北京视联动力国际信息技术有限公司 | The processing method of a kind of network conversion and equipment |
| CN106331581A (en) * | 2015-07-06 | 2017-01-11 | 北京视联动力国际信息技术有限公司 | Method and device for communication between mobile terminal and video networking terminal |
| CN106341515A (en) * | 2015-07-06 | 2017-01-18 | 北京视联动力国际信息技术有限公司 | Terminal monitoring method and device |
| CN106341588A (en) * | 2015-07-06 | 2017-01-18 | 北京视联动力国际信息技术有限公司 | Electronic focusing method and device of camera |
-
2017
- 2017-12-29 CN CN201711487205.7A patent/CN108881149B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303359A (en) * | 2015-05-14 | 2017-01-04 | 北京视联动力国际信息技术有限公司 | The processing method of a kind of network conversion and equipment |
| CN106331581A (en) * | 2015-07-06 | 2017-01-11 | 北京视联动力国际信息技术有限公司 | Method and device for communication between mobile terminal and video networking terminal |
| CN106341515A (en) * | 2015-07-06 | 2017-01-18 | 北京视联动力国际信息技术有限公司 | Terminal monitoring method and device |
| CN106341588A (en) * | 2015-07-06 | 2017-01-18 | 北京视联动力国际信息技术有限公司 | Electronic focusing method and device of camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108881149A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107968928B (en) | A kind of method and apparatus of terminal communication | |
| CN108881149B (en) | Access method and system of video telephone equipment | |
| CN108574688B (en) | Method and device for displaying participant information | |
| CN108965776B (en) | A kind of communication means and communication system | |
| CN109547417B (en) | Code stream transmission method and device | |
| CN110062191B (en) | Multi-party group meeting method and server based on video network | |
| CN110620896B (en) | Conference establishing method, system and device | |
| CN110087102B (en) | State query method, device and storage medium | |
| CN109379254B (en) | Network connection detection method and system based on video conference | |
| CN110049273B (en) | Video networking-based conference recording method and transfer server | |
| CN110191304B (en) | Data processing method, device and storage medium | |
| CN109743522B (en) | Communication method and device based on video networking | |
| CN107888544B (en) | A kind of method and system depending on establishing communication between networked terminals and communication apparatus | |
| CN111614927A (en) | Video session establishment method, device, electronic equipment and storage medium | |
| CN110149305B (en) | Video network-based multi-party audio and video playing method and transfer server | |
| CN109286775B (en) | Multi-person conference control method and system | |
| CN110121049A (en) | A kind of IMS conference medium method of flow control and device | |
| CN109963108A (en) | A kind of method and apparatus of one-to-many intercommunication | |
| CN111182258B (en) | Data transmission method and device for network conference | |
| CN110049275B (en) | Information processing method and device in video conference and storage medium | |
| CN109889755B (en) | Communication connection method and video networking terminal | |
| CN110430385B (en) | Video conference processing method, device and storage medium | |
| CN110072154B (en) | Video networking-based clustering method and transfer server | |
| CN110198384B (en) | Communication method based on video networking and transfer server | |
| CN110099025B (en) | Call method and device based on video networking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100000 Dongcheng District, Beijing, Qinglong Hutong 1, 1103 house of Ge Hua building. Applicant after: Video Link Power Information Technology Co., Ltd. Address before: 100000 Beijing Dongcheng District Qinglong Hutong 1 Song Hua Building A1103-1113 Applicant before: BEIJING VISIONVERA INTERNATIONAL INFORMATION TECHNOLOGY CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |