Patent ID: 8533346
Filing Date: 2013-09-10
Classification: H04L,H04N

Abstract:
1. A Session Initiation Protocol (SIP)-based network video surveillance method, comprising: receiving a request message from a client by a call control server (CCS), the request message comprising an ID of a Premises unit (PU) and a channel ID; forwarding the request message to a central management server (CMS) by the CCS for access authentication; transmitting the request message to the PU by the CCS after the request message passes the access authentication; responding, by the PU, an acknowledgement message containing video codec information to the CMS via the CCS; forwarding the acknowledgement message containing the video codec information and an access path to the client by the CMS; and establishing, by the client, a video stream connection with a network element directed by the access path on the basis of the acknowledge message, wherein, when the access path is directed to the PU via a Video Transfer and Dispatch Unit (VTDU), video stream connections are established between the client and the VTDU and between the VTDU and the PU, respectively; connecting a client-end CMS and a video source-end CMS belonging to different domains via a Service Management Server (SMS); receiving and forwarding, by the SMS, a request message for cross-domain video browse as forwarded by the client-end CMS from the client; and the video source-end CMS interacting with the client-end CMS via the SMS to establish a video stream connection between the client initiating the request for the cross-domain video browse and a network element within the domain to which the video source-end CMS belongs.