| 摘要 |
An object of the invention is a method for logging out a user of an application-layer service, the service being implemented with the aid of a user's wireless terminal, the terminal implementing a protocol stack comprising an application layer, and which application layer comprises a set of service applications for implementing application-layer services, and an application-layer control and signalling protocol, such as SIP (Session Initiation Protocol), for logging the user on application-layer services in a network and for logging the user out of application-layer services. According to the method, when switching off the wireless terminal, the user is logged using the application-layer control and signalling protocol out of at least one application-layer service of which the user has not logged out, or a conditional request for logging out the user is sent to the network.
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