Abstract: The present invention relates to a method for delivering interactive multi-screen service content in a multi-screen service content delivery system as well as a server and user terminal for implementing the method.

Abstract: Methods in OMA SEC_CF for providing security services to traffic over UDP between a client and a server and the relevant entities are provided. A pre-shared key is pre-shared between the client and the server. A pair of IPSec ESP SAs between the client and the server is established without shared key negotiation, wherein traffic data cryptographic algorithms are determined. Traffic data security keys are derived from the pre-shared key via the determined traffic data cryptographic algorithms. Then, data of the traffic can be provided with security services with the traffic data security keys through use of IPSec ESP.

Abstract: The invention provides a method for processing register request, network element, and a communication system.

Abstract: A uniform multi-screen service request command template is defined by using an OMA interactive media document so that a notification of a network device about a multi-screen service and a request command of a user for multi-screen service content are compatible with the OMA standard. With the multi-screen service request command template defined in the OMA interactive media document in the invention, the user can create a request command in the uniform format simply and rapidly to thereby greatly reduce the probability of an input error of the user. Furthermore, it is not necessary to set up a connection in advance, thus greatly shortening a delay and reducing the probability of an error and hence greatly improving a quality of experience of the user.

Abstract: A method and device are provided in the present invention, for providing the exclusive service control right of to the wireless access user. Wherein, the network device provides a plurality of format template information of the user terminals for requesting the service control right, and particularly for requesting the service control right of the video collecting device in wireless video surveillance system. Preferably, the template information is edited with the OMA interactive media file, and the user terminal generates an interactive command according to command format information that is corresponding to the user terminal, and sends to the network device, so as to request for service control right. The network device processes the interactive command received from different user terminals, so as to provide the user terminal with service control right.

Abstract: Methods in OMA SEC_CF for providing security services to traffic over UDP between a client and a server and the relevant entities are provided. A pre-shared key is pre-shared between the client and the server. A pair of IPSec ESP SAs between the client and the server is established without shared key negotiation, wherein traffic data cryptographic algorithms are determined. Traffic data security keys are derived from the pre-shared key via the determined traffic data cryptographic algorithms. Then, data of the traffic can be provided with security services with the traffic data security keys through use of IPSec ESP.

Abstract: The invention provides a method for processing register request, network element, and a communication system.

Abstract: A method for soft switch call control and a soft switch device therefore are provided. The soft switch device acquires an initial address message (IAM) at a calling side, analyzes information of the calling party and the called party based on the acquired initial address message (IAM), and informs the media gateways to create a context and to add TDM semi-permanent physical terminations of time slots corresponding to the calling party and the called party into the context when the calling party and the called party are controlled by the same media gateway. Thus, it can implement a local loop of TDM voice, reduce IP loop of RTP streams and efficiently reduces network resources such as steps for digital signal processing, echo elimination and etc.

Abstract: A method for soft switch call control and a soft switch device therefore are provided. The soft switch device acquires an initial address message (IAM) at a calling side, analyzes information of the calling party and the called party based on the acquired initial address message (IAM), and informs the media gateways to create a context and to add TDM semi-permanent physical terminations of time slots corresponding to the calling party and the called party into the context when the calling party and the called party are controlled by the same media gateway. Thus, it can implement a local loop of TDM voice, reduce IP loop of RTP streams and efficiently reduces network resources such as steps for digital signal processing, echo elimination and etc.