Abstract: A mobile device which is assigned to a person transmits an identification to a central device where localization of the mobile device is initiated. After the mobile device has been located in an area of an access system, the identification is checked for authorization for access via the access system. Access via the access system is either allowed or denied based on the result of the check. Access by an authorized person to secure areas or devices with the aid of a wireless device which is usually carried along—for example a mobile radio terminal or a DECT terminal—thus becomes considerably easier and more convenient.

Abstract: After an emergency call from a communication terminal has been received by an emergency call center, the position of the communication terminal is determined by querying a database. An area around the position of the communication terminal is defined as danger area and other communication terminals located in the danger area are identified. Communication terminals of rescue workers in the danger area who are to be informed are then selected. Finally, emergency information is generated, which can, for example, contain information about escape routes for potentially imperiled persons or access route information for rescue workers. This emergency information is then communicated to each of the selected communication terminals of potentially imperiled persons and/or rescue workers.

Abstract: A method for computer-aided operation of a communication system with a communication network, which has a plurality of network nodes, which are designed to interchange data with a number of terminals in the communication system, and in which the following steps are carried out: the terminals determine a first position variable relating to or at a specific point, with the first position variable comprising a semantic description relating to that specific point; the terminals determine a second position variable relating to or at the specific point with the second position variable comprising physical location information relating to that specific point; the first and the second position variables which have been determined by one of the terminals together represent location information, with the location information being transmitted to a network node in the communication network for further processing.

Abstract: After an emergency call from a communication terminal has been received by an emergency call center, the position of the communication terminal is determined by querying a database. An area around the position of the communication terminal is defined as danger area and other communication terminals located in the danger area are identified. Communication terminals of rescue workers in the danger area who are to be informed are then selected. Finally, emergency information is generated, which can, for example, contain information about escape routes for potentially imperiled persons or access route information for rescue workers. This emergency information is then communicated to each of the selected communication terminals of potentially imperiled persons and/or rescue workers.

Abstract: A method for computer-aided operation of a communication system with a communication network, which has a plurality of network nodes, which are designed to interchange data with a number of terminals in the communication system, and in which the following steps are carried out: the terminals determine a first position variable relating to or at a specific point, with the first position variable comprising a semantic description relating to that specific point; the terminals determine a second position vairable relating to or at the specific point with the second position varialbe comprising physical location information relating to that specific point; the first and the second position variables which have been determined by one of the terminals together represent location information, with the location information being transmitted to a network node in the communication network for further processing.

Abstract: A mobile device which is assigned to a person transmits an identification to a central device where localization of the mobile device is initiated. After the mobile device has been located in an area of an access system, the identification is checked for authorization for access via the access system. Access via the access system is either allowed or denied based on the result of the check. Access by an authorized person to secure areas or devices with the aid of a wireless device which is usually carried along—for example a mobile radio terminal or a DECT terminal—thus becomes considerably easier and more convenient.