presentity

presentity: noun

a) An entity (usually a human) which provides presence information (who may be available and willing to communicate through communication services). For example, users of an instant messaging service (such as ICQ or MSN Messenger) are considered presentities. Presentities can have a status of being present, online, available, offline, or away.

b) A group of humans, for example a collection of customer service agents in a call center that may be present. This presentity may be considered available if there is at least one agent ready to accept a call.

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Presentity — is an entity described by presence information. The word is a combination of words presence and entity and was first introduced in RFC 2778. Originally it was defined as entity which provides presence information.Presentity usually refers to a… … Wikipedia
Presence information — In computer and telecommunications networks, presence information is a status indicator that conveys ability and willingness of a potential communication partner for example a user to communicate. A user s client provides presence information… … Wikipedia
Presence service — is a network service which accepts, stores and distributes presence information. Presence service may be implemented as a single server or have an internal structure involving multiple servers and proxies. There may be complex patterns of… … Wikipedia
Watcher (presence) — Presence information watcher is an entity that requests presence information about a presentity from a presence service. Usually in order to get presence information a watcher have to subscribe for it to a presence server. When subscribed, the… … Wikipedia

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