Abstract: A method for applying control to a vehicle. The method includes: receiving, by way of a second control unit of a second vehicle to which control is to be applied, a signal encompassing a message encrypted using a valid symmetrical key of a first control unit of a first vehicle; ascertaining, by way of the second control unit, a decryptability of the encrypted message using a valid symmetrical key of the second control unit or a symmetrical reserve key of the second control unit ascertained by way of the second control unit; ecrypting the encrypted message, depending on the ascertained decryptability, by way of the second control unit using the valid symmetrical key of the second control unit or the symmetrical reserve key of the second control unit; and applying control, based on the decrypted message, to the second vehicle to which control is to be applied.

Abstract: A method for authenticating a user terminal as a transmitter of a message transmitted in a wireless communication network having a plurality of spatially distributed user terminals, The message is transmitted from a first user terminal to at least one second and/or one third user terminal with the aid of a wireless communications connection. The message includes useful data, first user-terminal-specific and second user-terminal-specific authentication data. The first user terminal is authenticated as the transmitter of the message based on the first user-terminal-specific authentication data with the aid of the second user terminal, and/or based on the second user-terminal-specific authentication data with the aid of the third user terminal.

Abstract: A method for applying control to a vehicle. The method includes: receiving, by way of a second control unit of a second vehicle to which control is to be applied, a signal encompassing a message encrypted using a valid symmetrical key of a first control unit of a first vehicle; ascertaining, by way of the second control unit, a decryptability of the encrypted message using a valid symmetrical key of the second control unit or a symmetrical reserve key of the second control unit ascertained by way of the second control unit; ecrypting the encrypted message, depending on the ascertained decryptability, by way of the second control unit using the valid symmetrical key of the second control unit or the symmetrical reserve key of the second control unit; and applying control, based on the decrypted message, to the second vehicle to which control is to be applied.

Abstract: A method is provided for transmitting data, particularly having multimedia contents, from a first communications unit to a second communications unit (40; 114) in a telephone communications network, whereby at least one transmission status message assigned to the data is transmitted to the first communications unit. In the event that data cannot be delivered to the second communications unit, an item of information concerning a non-deliverability of the sent data is provided in the transmission status message.

Abstract: A method is provided for transmitting data, particularly having multimedia contents, from a first communications unit to a second communications unit (40; 114) in a telephone communications network, whereby at least one transmission status message assigned to the data is transmitted to the first communications unit. In the event that data cannot be delivered to the second communications unit, an item of information concerning a non-deliverability of the sent data is provided in the transmission status message.

Abstract: A method is provided for transmitting data, particularly having multimedia contents, from a first communications unit to a second communications unit (40; 114) in a telephone communications network, whereby at least one transmission status message assigned to the data is transmitted to the first communications unit. In the event that data cannot be delivered to the second communications unit, an item of information concerning a non-deliverability of the sent data is provided in the transmission status message.

Abstract: A method is provided for mobile transmission of data, especially a method for transmitting multimedia data to a mobile subscriber terminal, wherein the data MM from an MMS application is transmitted to a network unit MMS Proxy/Relay A, the data is re-transmitted to a network unit MMS Proxy/Relay B via a link to a network unit, whereupon it is sent to a recipient, the conversion of the data occurring in a network unit MMS Proxy/Relay between a binary and a textual representation. Elements of data containing an unknown codeword are transmitted in a marked manner in order to provide a method for mobile transmission of multimedia data, a computer program product and a computer program system wherein unknown codes also can be processed without system-related transmission problems, particularly in a forward-compatible manner.

Abstract: A method is provided for transmitting data, particularly having multimedia contents, from a first communications unit to a second communications unit (40; 114) in a telephone communications network, whereby at least one transmission status message assigned to the data is transmitted to the first communications unit. In the event that data cannot be delivered to the second communications unit, an item of information concerning a non-deliverability of the sent data is provided in the transmission status message.

Abstract: The recipient of multimedia messages is informed of the importance of said messages before they are received. The recipient is correspondingly informed of the available message in a data support device. A form of identification concerning the importance of the available message is sent to the recipient with said notification. The recipient can download the multimedia message straight away or later onto the terminal based on the basis of said importance related ID.

Abstract: The invention relates to a method for mobile transmission of data, especially a method for transmitting multimedia data to a mobile subscriber terminal, wherein the multimedia data (MM) from an MMS application is transmitted to a multimedia messaging service (MMS) Proxy/Relay A network unit, said data is re-transmitted to an MMS Proxy/Relay B network unit via a link to a network unit, whereupon it is sent to a receiver, the conversion of said data occurring in an MMS Proxy/Relay network unit between a binary and a textual representation, a computer program product and a communication system. Elements of data containng an unknown code word are transmitted in a marked manner in order to provide a method for mobile transmission of multimedia data, a computer program product and a computer program system wherein unknown codes can also be processed without system-related transmission problems and especially in a forward-compatible manner.

Abstract: A method, a subscriber terminal, a computer program product and a communications system are proposed via which an initially displayed image of data is preset essentially freely for a receiver, and an element is tagged in order to allow this element to be displayed as soon as the data is opened.

Abstract: Given that a sender of a multimedia message is generally unclear about the whereabouts of the message if the message has first been stored in a mailbox for the receiver and the receiver has neither been able to be notified about this message in the mailbox nor has downloaded the message, a connection unit associated with the receiver produces a notification which is then sent to a sender connection unit and on to the sender, and the type of notification required by the sender, or other, can be coded in the header of the send request in which the sender sends the multimedia message, wherein the receiver receives individual feedback about the whereabouts of the multimedia message.