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user agent layer (UAL)

The User AgentLayer (UAL) is the application-dependent sublayer of the OSI reference model. It acts as an interface in MHS systems according to X.400 between the user interaction and the Message Transfer Layer (MTL). The International Telecommunication Union (ITU) recommends the Interpersonal Messaging System (IPMS) as the application. An instance of the User Agent Layer (UAL) is the User Agent Entity (UAE).

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Englisch: user agent layer - UAL
Updated at: 22.04.2013
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