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57 results about "Multimedia telephony" patented technology

The 3GPP/NGN IP Multimedia Subsystem (IMS) multimedia telephony service (MMTel) is a global standard based on the IMS, offering converged, fixed and mobile real-time multimedia communication using the media capabilities such as voice, real-time video, text, file transfer and sharing of pictures, audio and video clips. With MMTel, users have the capability to add and drop media during a session. You can start with chat, add voice (for instance Mobile VoIP), add another caller, add video, share media and transfer files, and drop any of these without losing or having to end the session. MMTel is one of the registered ICSI (IMS Communication Service Identifier) feature tags.

Remote video monitoring system and method based on public switched telephone network-Internet protocol (PSTN-IP) double-network cooperation

The invention relates to a remote video monitoring system and a remote video monitoring method based on public switched telephone network-Internet protocol (PSTN-IP) double-network cooperation. The system comprises a plurality of multimedia telephone terminals and one or more network video camera devices communicating with at least one of the terminals, wherein the terminals are in audio/non-audio communication with one another respectively through the PSTN/IP network; the non-audio communication is triggered by PSTN telephone dialing; telephone numbers are used as positioning identifiers of the terminals; IP addressing among the terminals is finished by using a mapping relation between a telephone number maintained in an IP network server and an IP address, so that the non-audio communication connection based on the IP network is established; and a calling terminal sends a control instruction to the network video camera device connected to a called terminal through the non-audio communication connection and acquires video data acquired by the network camera device. By the system and the method, the requirement of family remote video monitoring can be met better; furthermore, the system and the method have flexibility and security, are convenient to operate and are convenient for realizing server network management.
Owner:陈凯

Peer-to-peer (P2P) stream media broadcast method and system for multimedia telephone

The invention relates to a peer-to-peer (P2P) stream media broadcast method for a multimedia telephone. The method comprises a step of: establishing an application layer multicast tree serving as a main broadcast route from one media source to a plurality of multimedia telephone terminals, wherein the media source is a root node of the multicast tree; partial or all tree nodes of the multicast tree are super tree nodes; the super tree nodes and one or more nodes which are the same as an internal network of the super tree nodes form a partnership; and nodes in the partnership communicate with one another in the partnership by adopting a P2P mode. The terminal which requests service is preferentially added into the partnership of the super tree node which is the same as the internal networkof the terminal or preferentially constructs a new partnership with a tree node which is the same as the internal network of the terminal and serves as the super tree node; and a system based on the method provides a support for implementing the method in software and hardware aspects. By adopting the method or the system, the network routing efficiency can be improved and the pressure on a backbone network can be relieved; and the method is a feasible P2P multimedia broadcast scheme which has high economy and high comprehensive broadcast performance and is easy to popularize and apply.
Owner:陈凯

Time division-synchronous code division multiple access (TD-SCDMA)/ IP double network cooperation multimedia telephone, system and communication method thereof

The invention relates to a Time division-synchronous code division multiple access (TD-SCDMA)/ IP double network cooperation multimedia telephone, a system and a communication method thereof. A TD-SCDMA chipset module is used to perform channel access on a multimedia telephone terminal so that voice accesses to a TD-SCDMA network through a circuit domain channel of the TD-SCDMA chipset module and video or multimedia digit information accesses to an IP network through a packet domain channel of the TD-SCDMA chipset module. A terminal telephone number is taken as positioning identification. Network addressing and exchange of the terminal can be realized through the cooperation of an IP Internet server system so that non audio frequency communication between the terminals based on the IP network can be realized. The voice and the video are synchronously restored after reaching the opposite terminal. In the invention, fusion of the double network communication can be realized. Low latency and high quality of the voice communication can be guaranteed and a large information amount video communication requirement of a high-definition large display screen can be satisfied. And on-demand flexible expansion of the service can be effectively realized.
Owner:陈凯

Communication method based on blockchain and communication system based on blockchain

The invention belongs to the field of a blockchain and specifically relates to a communication method and system based on the blockchain. The method at least comprises the steps that a calling side mobile switching center queries an operator subordination relationship of a number portability user terminal corresponding to a called number, and queries whether the user terminal is a group user or nor/whether the user terminal and the number portability user terminal are located in the same group private network or not, to a business control point node in a preset block chain; a call is triggeredby the mobile switching center to a multimedia telephone service application server corresponding to the called number; a call session control function entity in an IMS (IP Multimedia Subsystem) domain queries a session resource identity of the called number, to a home location register node, through utilization of a call session control function entity node in the preset block chain, and sends acall invite message to the called side call session control function entity and the called side business control point application server; and the called side business control point application server queries a location of the number portability user terminal of a called user. Normal communication of a number portability WVPN (Wireless Virtual Private Network) user can be effectively ensured.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Switching control method for public switched telephone network (PSTN)-Internet protocol (IP) network cooperative communication

The invention relates to a switching control method for public switched telephone network (PSTN)-Internet protocol (IP) network cooperative communication. The method is used for non-audio communication control between PSTN-IP network cooperative multimedia telephone terminals. Communication connection is initiated by PSTN telephone dialing, telephone numbers are taken as positioning identifiers of the multimedia telephone terminals, PSTN circuit auxiliary authentication, dynamic IP addressing and switching are performed by utilizing a server system of an IP network, IP-network-based non-audio communication connection is finally established, and non-audio communication is realized between the multimedia telephone terminals. An IP-network-based non-audio communication connection protocol is taken as a core, and a login / logout control protocol, a charging information acquisition protocol and a security control protocol are also involved. By the method, a complete non-audio communication protocol is provided, the separate transmission of audios and videos is realized by a PSTN circuit switching network and the IP network, and the short delay of audio communication and the high quality of video communication are ensured at the same time.
Owner:陈凯

Advertisement multimedia telephone and application and method for playing advertisement in hotel and other places

The invention discloses an advertising multimedia telephone, which comprises a liquid crystal display wherein at least one region in the liquid crystal display broadcasts the practicable information, and at least one region broadcasts the advertising information, and a manual hand-operated information starting device which can control and examine all practicable information, wherein the region on the display which broadcasts the practicable information displays the practicable information which is demanded by the user and the region in the display which broadcasts the advertising information displays the advertising information when the user starts the device to examine the practicable information. The invention further discloses a process of broadcasting advertisement of the advertising multimedia telephone in places such as restaurants and the like and the application. The advertising multimedia telephone of the invention can provide a large amount of the practicable information, displays the advertising information when the user uses the practicable information which is provided by the invention, is convenient for user to receive the advertisement playing, obtains the satisfactions of operators of public places and customers, expands the coverage of the advertisement at high-grade public places such as hotels, inns and clubs and the like, and promotes the popularization development of the advertising multimedia telephone.
Owner:刘庆光

Method and device for synchronizing supplementary service information of IMS domain and CS domain

The invention discloses a method and device for synchronizing supplementary service information of an IMS domain and a CS domain. The device for synchronizing supplementary service information of the IMS domain and the CS domain comprises a first synchronization module and a second synchronization module, wherein the second synchronization module is used for obtaining the supplementary service information of the CS domain from a home location register of the CS domain and is used for transmitting the supplementary service information of the CS domain to a first synchronization module; the first synchronization module is used for transmitting supplementary service configuration request information to an IMS domain service configuration proxy gateway according to the supplementary service information of the CS domain in order to make the service configuration proxy gateway of the IMS domain configure the supplementary service to a multimedia telephone service network element based on the IMS so as to realize a fact that the supplementary service information is synchronized from the CS domain to the IMS domain. The method and device for synchronizing supplementary service information of the IMS domain and the CS domain have no reconstruction requirements for current network devices, totally accord with network standard flows and only play roles of protocol transition and adaption. The method and device of the invention are easy to realize and low in realization cost.
Owner:CHINA TELECOM CORP LTD
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