CN101237555A - Method, system and device for realizing video telephony - Google Patents

Abstract

The embodiment of the present invention discloses a video phone implementation method, system and device. The video phone implementation method includes the following steps: receiving a video call signal sent by a calling user; establishing a voice call channel and a video call channel; binding the voice call channel and the video call channel; using the bound voice call channel and video call channel to send voice signals and video signals respectively. Through the embodiment of the present invention, the call processing device receives the video call signal sent by the calling user, binds the established voice call channel and video call channel, and transmits the voice signal and video call channel respectively through the bound voice call channel and video call channel. Signal, so that the video call can be made through the ordinary telephone, and the video image is displayed on the video processing device, which reduces the service activation cost and expense for the user to make a video call, and is conducive to the expansion and popularization of the video call service.

Description

Method, system and device for realizing video telephony

technical field

Embodiments of the present invention relate to the technical field of computer communication, and in particular, to a method, system and device for implementing video telephony.

Background technique

Early video telephony was realized through narrowband PSTN (Public Switched Telephone Network, public switched telephone network), and later developed to broadband, because the line bandwidth increased a lot, through broadband ADSL (Asymmetric Digital Subscriber Line, asymmetrical digital subscriber line) It would be much easier to make a video call with a dedicated line, but dedicated video phones are very expensive.

Since broadband users generally have a PC (Personal Computer, personal computer), they can use various communication software to make video calls on the PC. The user only needs to have a matching camera and a headset for talking, and connect the above camera and headset After installing and running special communication software on the computer, you can make a video call. At present, the Internet video chat service is booming. However, there are several problems in carrying out video communication on a PC. First, this solution is not authorized by the telecom operator, as long as it is a special number. Traditional telecom operators cannot control the allocation of the number, so they cannot get the Second, a PC is necessary, and there are a large number of households in China and even the world without PCs, so the application of this solution is limited; third, the use and maintenance of software on the PC is also a big problem, even if there is a PC Not everyone in a mobile phone family can use this type of software to make video calls, which also restricts users from using video calls.

In addition, you can use a mobile phone with a camera to make a video call, but at present only a small number of mobile phones with a camera support a video call, and using this type of mobile phone to conduct a video call requires special communication software to process, so this kind of mobile phone is more expensive than ordinary mobile phones. The price is expensive, and the video takes up a lot of wireless resources, and the operator's charges are very high, and the average user cannot afford the high cost of using this mobile phone to make a video call.

As shown in Figure 1, it is a schematic diagram of a network using a dedicated video phone to make a video call. In this solution, the video phone is connected to the transmission network through a subscriber line, and passes through a call processing system (the call processing system can be PSTN signaling After the processing system, NGN (Next Generation Network, next generation network) softswitch system or IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) process, it reaches another video phone through the transport network. When the user initiates a call, the voice stream Together with the video stream, it passes through the video phone on the user side, and sends the voice stream and video stream to the call processing system through the transmission network for processing. The processed voice stream and video stream then pass through the transmission network and finally reach the called party's video phone. The called party's video phone displays the voice and video images through the microphone and the display respectively, so as to realize the video call between the two sides. The above-mentioned subscriber line can be ASL (Analog Subscriber Line, analog subscriber line), DSL (Digital Subscriber Line, digital subscriber line), ADSL, VDSL (Very High Bit Rate Digital Subscriber Line, high-speed digital subscriber line), Ethernet or optical fiber, etc.

As shown in Figure 2, it is a schematic diagram of a network using a PC to make a video call. This solution utilizes the powerful processing capabilities of the PC, connects an external camera, a headset, and installs a dedicated communication software. The call processing system here is the same as the above-mentioned solution. It is slightly different, not necessarily the proprietary equipment of telecom operators such as PSTN, NGN or IMS, but usually software specially developed by IT (Information Technology, information technology) manufacturers, which is mainly completed by using servers. A method that is used more frequently, and many video chats use this solution.

As shown in Figure 3, it is a network schematic diagram of using a mobile phone with a camera to make a video call. The communication principle of using a mobile phone with a camera to make a video call is basically the same as the previous two solutions, except that the mobile phone and Mobile network, in addition, because GSM (Global System for Mobile Communications, Global System for Mobile Communications) is limited by bandwidth, it generally cannot support video calls. This solution is generally carried out under the 3G (3rd Generation, third-generation mobile communication) network. .

In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: the cost of making a video call with a dedicated video phone is relatively high; It is inconvenient to operate and maintain the communication, and it cannot bring economic benefits to the telecom operators, while making a video call through a mobile phone with a camera takes up a lot of wireless resources, and the cost is very high, and it is not suitable for popularization.

Contents of the invention

Embodiments of the present invention provide a method, system, and device for implementing a video call, which can be used to make a video call through an ordinary phone, so as to reduce the cost of making a video call and popularize video call services.

In order to achieve the above object, an embodiment of the present invention provides a method for implementing a video phone on the one hand, including the following steps: receiving a video call signal sent by a calling user; establishing a voice call channel and a video call channel, and connecting the voice call channel and the video call channel The video call channel is bound; the voice signal and the video signal are sent respectively by using the bound voice call channel and video call channel.

On the other hand, the embodiment of the present invention also provides a system for implementing video telephony, including: a call processing device, a set-top box STB, and an ordinary telephone, and the call processing device is used to receive the video call signal sent by the calling user, and establish A voice call channel and a video call channel, binding the voice call channel and the video call channel, and using the bound voice call channel and video call channel to send voice signals and video signals respectively; the STB , configured to send the video signal to the call processing device; and the ordinary telephone set, configured to send the voice signal to the call processing device.

In yet another aspect, an embodiment of the present invention also provides a call processing device, including: a receiving module, configured to receive a video call signal sent by a calling user; and an establishment module, configured to receive the video call signal at the receiving module Afterwards, establish a voice call channel and a video call channel; a binding module is used to bind the voice call channel and the video call channel established by the establishment module; a sending module is used to use the binding module to bind the The voice call channel and the video call channel transmit voice signals and video signals respectively.

Compared with the prior art, the embodiment of the present invention has the following advantages: the call processing device in the embodiment of the present invention receives the video call signal sent by the calling user, binds the established voice call channel and the video call channel, and utilizes the binding The latter voice call channel and video call channel send voice signals and video signals respectively, so that video calls can be made through ordinary telephones, which reduces the cost of making video calls, is conducive to the popularization of video call services, and makes full use of the advantages of fixed networks. The advantage of bandwidth has brought economic benefits to telecom operators.

Description of drawings

Fig. 1 is a schematic diagram of a network using a dedicated video phone to dial a video call in the prior art;

Fig. 2 is a schematic diagram of a network using a dedicated PC to dial a video call in the prior art;

Fig. 3 is a schematic diagram of a network using a mobile phone with a camera to make a video call in the prior art;

4 is a schematic diagram of a network using an ordinary telephone to make a video call according to an embodiment of the present invention;

FIG. 5 is a flow chart of a method for implementing a video phone according to an embodiment of the present invention;

FIG. 6 is a structural diagram of a system for implementing video telephony in an embodiment of the present invention;

Fig. 7 is a structural diagram of a call processing device according to an embodiment of the present invention.

Detailed ways

An embodiment of the present invention provides a method for implementing a video call. As shown in FIG. 4 , it is a schematic diagram of a network using an ordinary telephone to dial a video call according to an embodiment of the present invention. The call processing device receives the video call signal sent by the calling user, and establishes A voice call channel and a video call channel, and bind the established voice call channel and video call channel, and use the bound voice call channel and video call channel to send voice signals and video signals respectively. Among them, the voice signal is sent to the call processing device through the ordinary telephone, and the video signal is sent to the call processing device through the STB (Set Top Box, set-top box), thereby realizing the video call through the ordinary telephone, reducing the cost of making the video call, and effectively It is conducive to the popularization of video telephony services, fully utilizes the bandwidth advantages of fixed networks, and brings economic benefits to telecom operators.

As shown in Figure 5, it is a flow chart of the implementation method of the video phone in the embodiment of the present invention, which specifically includes the following steps:

Step S501, activating a video phone service. The user goes to the business hall of the telecom operator or activates the video call service through other means (such as opening on the Internet). The operator will include the user's video service data information: phone number, STB ID number, CPE (Customer Premises Equipment, Information such as the ID of the user premises equipment) equipment is entered in the user database. When the operator enters the user's video service data information into the user database, the phone number and the STB ID are associated together, specifically, the phone number and the STB ID can be stored in the same table. Connect the user's ordinary telephone set and the equipment for processing video signals, such as the STB (external camera on the STB), to the CPE (Customer Premises Equipment, customer premise equipment) equipment at the registered user's home, such as a modem or home gateway, etc., Then connect to the broadband network through a subscriber line (such as xDSL, Ethernet or optical fiber) to connect to the call processing device, which can be a softswitch device in NGN (Next Generation Network, next-generation network) or IMS (IPMultimedia Subsystem IP, Multimedia Subsystem) equipment.

Step S502, the calling user initiates a call. If the calling user wants to initiate a video telephone call, then turn on the television set and the STB, aim the camera at himself, and then initiate a video telephone call with an ordinary telephone. Among them, the voice signal follows the usual process of voice calls, and the video signal is collected and processed by the camera, and then processed by the STB, and then the CPE transmits the voice signal and video signal to the broadband network, and the above voice signal and video signal are transmitted through the broadband network. The signal is sent to the call processing device.

Step S503, after receiving the calling user's video call signal, the call processing device first extracts the calling user's phone number and STB ID from the video calling signal, searches for the calling user's video service data information, and according to the video service data information to determine whether the calling user has subscribed to the video phone service. If the calling user has not subscribed to the video telephony service, then execute step S504; if the calling user has subscribed to the video telephony service, then execute step S505.

In step S504, the call processing device processes the call service of the calling user according to the processing flow of ordinary voice calls.

In step S505, the call processing device determines whether the called user has subscribed to the video phone service. After the call processing device receives the video call signal sent by the calling user, it can extract the called user's phone number from the received video call signal, and can find the called user's video service data according to the called user's phone number Information, such as whether the called user has subscribed to the video phone service, the ID number of the called user's STB, etc. According to the video service data information, it can be judged whether the called user has opened the video phone service, if the called user has not opened the video phone service, then perform step S506, if the called user has opened the video phone service, then perform step S507.

In step S506, the call processing device only establishes a voice call channel, and sends the voice signal to the called user.

In step S507, the call processing device performs video call processing. The call processing device establishes two call channels of voice and video between the calling user and the called user, or establishes two virtual call channels of voice and video between the calling user and the called user. The virtual call channel appears as a call channel externally. Since the call processing device only establishes a channel connection, it does not occupy bandwidth resources. After both calling parties agree to make a video call, the call processing device binds the voice call channel and the video call channel, and transmits voice signals and video signals through the bound voice call channel and video call channel respectively. At the same time, the call processing device records relevant information during the call, such as the start time and end time of the call, in the name of the calling user, so that the background accounting system can perform billing processing.

There are several function keys to be defined on the remote controller of the STB, and the embodiment of the present invention defines one of the function keys as a video call key. If the calling user wants to make a video call during the call and see the video image of the called user, just press the video call button on the STB remote control to transmit the video image of the calling user to the called user , the called user also presses the video call button to receive the video image of the calling user.

Among them, voice calls and video calls are billed separately. The talk time of a video call is counted from the time the user presses the video call button. It can be counted according to the user who presses the video call button first, or according to the user who presses the video call button later. The specific implementation method is selected by the operator.

In the embodiment of the present invention, the signals in the bound voice call channel and video call channel may or may not be synchronized, because the process of signal synchronization is relatively complicated and expensive.

Step S508, the user hangs up. After any one of the calling parties hangs up, the voice calling channel between the calling parties is cut off at first, and after cutting off the voice calling channel, the call processing device cuts off the video calling channel between the calling parties, and the call ends.

In the implementation method of the above video telephony, the call processing device receives the video call signal sent by the calling user, establishes a voice call channel and a video call channel, binds the voice call channel and the video call channel, and through the bound voice call channel and video call channel The call channel transmits the voice signal and the video signal separately, thereby realizing the video call through the ordinary telephone, reducing the cost of making the video call, which is conducive to the popularization of the video call service, making full use of the bandwidth advantage of the fixed network, and providing telecom operators with brought economic benefits.

As shown in Figure 6, it is a structural diagram of a system for realizing a video phone according to an embodiment of the present invention, including: a call processing device 61, a set-top box STB62 and an ordinary telephone 63,

The call processing device 61 is configured to receive a video call signal sent by the calling user, establish a voice call channel and a video call channel, bind the voice call channel and the video call channel, and use the bound voice call channel and video call channel The channels send voice signals and video signals respectively;

STB62, configured to send video signals to the call processing device 61;

An ordinary telephone 63, configured to send the voice signal to the call processing device.

Wherein, the implementation system of the above-mentioned video phone further includes a CPE64, which is used to send the voice signal sent by the ordinary telephone 63 and the video signal sent by the STB62 to the broadband network.

In the implementation system of the above-mentioned video phone, the call processing device 61 receives the video call signal sent by the calling user, establishes a voice call channel and a video call channel, binds the voice call channel and the video call channel, and through the bound voice call channel and The video call channel transmits the voice signal and the video signal respectively, thereby realizing the video call through the ordinary telephone set 63, reducing the cost of making a video call, facilitating the popularization of the video call service, making full use of the bandwidth advantage of the fixed network, and providing telecom Operators bring economic benefits.

As shown in FIG. 7, it is a structural diagram of a call processing device according to an embodiment of the present invention, including:

A receiving module 71, configured to receive a video call signal sent by a calling user;

The establishment module 72 is used to establish a voice call channel and a video call channel after the receiving module 71 receives the video call signal;

A binding module 73, configured to bind the voice call channel and the video call channel established by the establishment module 72;

The sending module 74 is configured to use the voice call channel and the video call channel bound by the binding module 73 to respectively send a voice signal and a video signal.

Wherein, the call processing device further includes: a storage module 75, configured to store the user's video service data information, the video service data information includes the telephone number of the ordinary telephone, the ID of the STB and the ID of the CPE.

Wherein, the establishment module 72 includes: a search sub-module 721 , configured to search for the video service data information of the calling user and the called user according to the video call signal received by the receiving module 71 . After the receiving module 71 receives the video call signal sent by the calling user, the search submodule 721 can extract the phone numbers of the calling user and the called user from the received video call signal, according to the phone numbers of the calling user and the called user The video service data information of the calling user and the called user can be searched by the phone number, such as whether the calling user and the called user have subscribed to the video phone service, the ID of the STB of the calling user and the called user, etc.

Judgment sub-module 722, for judging whether the calling user and the called user have opened the video phone service according to the video service information searched by the search sub-module 721;

The channel establishment submodule 723 is used for when both the calling user and the called user have opened the video telephony service, and both the calling user and the called user agree to make a video call, Two call channels of voice and video are established between them, or two virtual call channels of voice and video are established between the calling user and the called user, and the two virtual call channels of voice and video are externally Appears as a call channel.

If any party in the calling user and the called user does not open the video call service, or any party in the calling user and the called user does not agree to make a video call, then the channel establishment submodule 723 only sets up the voice call channel, and the voice call The signal is transmitted to the called user.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is a better implementation Way. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions to make a A computer device (which may be a personal computer, a server, or a network device, etc.) executes the methods described in various embodiments of the present invention.

The above disclosures are only a few specific embodiments of the present invention, however, the present invention is not limited thereto, and any changes conceivable by those skilled in the art shall fall within the protection scope of the present invention.

Claims (11)

1. A method for implementing video telephony, comprising the following steps: Receive the video call signal sent by the calling user; establishing a voice call channel and a video call channel, and binding the voice call channel and the video call channel; Using the bound voice call channel and video call channel to send voice signals and video signals respectively. 2. The method for implementing video telephony according to claim 1, wherein the voice signal is sent to the call processing device through an ordinary telephone, and the video signal is sent to the call processing device through a set-top box STB. 3. The method for realizing video telephony according to claim 1, wherein said binding the voice call channel and the video call channel comprises: binding the voice call channel and the video call channel according to the identifier Certainly. 4. The implementation method of video telephony according to claim 3, characterized in that the identifier includes the telephone number of the ordinary telephone set, the identification ID of the STB and the ID of the customer premises equipment. 5. The method for implementing video telephony according to claim 2, further comprising: The video service data information is stored in the call processing device, and the video service data information includes the telephone number of the ordinary telephone set, the ID of the STB and the ID of the customer premises equipment. 6. The implementation method of video telephony as claimed in claim 1, wherein said establishing a voice call channel and a video call channel comprises: Finding the video service data information of the calling user and the called user according to the received video call signal, and judging whether the calling user and the called user have opened a video phone service according to the video service data information; If both the calling user and the called user have subscribed to the video telephony service, and both the calling user and the called user agree to make a video call, then the calling user and the called user Two call channels of voice and video are established between them, or two virtual call channels of voice and video are established between the calling user and the called user, and the two virtual call channels of voice and video are externally Appears as a call channel. 7. The method for implementing video telephony as claimed in claim 6, further comprising: If either of the calling user and the called user has not subscribed to the video call service, or if either of the calling user and the called user does not agree to make a video call, only the voice call channel is established , and transmit the voice signal to the called user. 8. A system for implementing video telephony, comprising: a call processing device, a set-top box STB and an ordinary telephone, The call processing device is configured to receive a video call signal sent by a calling user, establish a voice call channel and a video call channel, bind the voice call channel and the video call channel, and use the bound The voice call channel and the video call channel send voice signals and video signals respectively; the STB is configured to send the video signal to the call processing device; The ordinary telephone set is configured to send the voice signal to the call processing device. 9. A call processing device, comprising: The receiving module is used to receive the video call signal sent by the calling user; An establishment module, configured to establish a voice call channel and a video call channel after the receiving module receives the video call signal; a binding module, configured to bind the voice call channel and the video call channel established by the establishment module; The sending module is configured to use the voice call channel and the video call channel bound by the binding module to send voice signals and video signals respectively. 10. The call processing device according to claim 9, further comprising: The storage module is used for storing video service data information, and the video service data information includes the telephone number of the ordinary telephone set, the identification ID of the STB and the ID of the customer premises equipment CPE. 11. The call processing device according to claim 9, wherein the establishment module comprises: A search submodule, configured to search for the video service data information of the calling user and the called user according to the video call signal received by the receiving module; A judging submodule, configured to judge whether the calling user and the called user have subscribed to the video phone service according to the video service information searched by the searching submodule; The channel establishment submodule is used for when both the calling user and the called user have opened the video telephony service, and both the calling user and the called user agree to make a video call, Two call channels of voice and video are established between the user and the called user, or two virtual call channels of voice and video are established between the calling user and the called user, and the voice and video The two virtual call appearances appear as one call appearance to the outside world.

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