Session Initiation Protocol (Sip) Multicast Management Method
AssigneeNortel Networks Limited
InventorsSheng Sun, Bing Wen, Eric Wu
Life of this patent
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Abstract
Described are a method and system for obtaining real-time media content over an Internet Protocol network. A proxy server receives a message from a client device requesting that communications be established with a media server for obtaining a stream of media content. The proxy server sends the client device a redirection message in reply to the client device if the requested media content is available from a local replication point. The redirection message instructs the client device to communicate with the local replication point to obtain the stream of media content.
Claims20
A method of obtaining real-time media content over an Internet Protocol network, the method comprising:
- receiving at a proxy server a message from a client device, the message requesting that communications be established with a media server for obtaining a stream of media content;
- and
- sending from the proxy server to the client device a redirection message in reply to the message from the client device if the requested media content is available from a local replication point, the redirection message instructing the client device to communicate with the local replication point to obtain the stream of media content.
A network for distributing real-time media content, comprising:
- a media server;
- a local replication point in communication with the media server;
- a proxy server in communication with a client device, the proxy server receiving a message from the client device requesting that communications be established with the media server for obtaining a particular stream of media content, the proxy server sending to the client device a redirection message in reply to the message from the client device if the requested media content is available at the local replication point, the redirection message instructing the client device to establish communications with the local replication point to obtain the particular stream of media content.
A network device comprising a proxy agent in communication with a client device over an access network, the proxy agent receiving a message from the client device requesting that communications be established with a media server for obtaining a stream of media content, the proxy agent sending to the client device a redirection message in reply to the message from the client device if the media content is available from a cache server, the redirection message instructing the client device to communicate with the cache server to obtain the requested stream of media content.
Dependencies are inferred from the claim text.