| 摘要 |
A method and system for providing expanded presence information of publishers to subscribers is provided. The presence system receives expanded presence information from a publisher. A client component of the presence system sends the expanded presence information to a presence server of the presence system. Upon receiving the expanded presence information, the presence server stores the expanded presence information in association with the publisher. When the presence server is to provide the presence information of a publisher to subscribers, the presence server identifies the current presence state of the publisher and retrieves the expanded presence information. The presence server then provides the current presence state and the expanded presence information to the subscribers.
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