Data transmission method and arrangement using method calls

A method of implementing data transmission between at least two apparatuses which comprise means for establishing a connection with a data transmission system, the method comprising:

• implementing at least a part of the connection between at least two different apparatuses by a wireless connection,
• performing at least a part of the communication of the apparatuses by means of method calls, each method call containing a service request,
• performing authentication of the parties during communication to improve safety,
• directing a method call to a service broker of the system,
• sending the method calls from apparatuses using wireless connections to an adapter by the service broker,
• adapting by the adapter the protocol used in the wireless connection to the rest of the network,
• finding a server providing the requested service by the adapter on behalf of the apparatus which sent the method call and which operates in a wireless network,
• directing the service request contained in the method call by the service broker to the provided server,
• sending a reply to the method call by the provided server according to the required service by sending the information required for the service to the service broker,
• sending the information to the sender of the method call by the service broker.