Battery saving for a system comprising a mobile telephone connected to an accessory device

摘要

The method is used in a system which includes first and second devices(1,2) which are interconnected through a data exchange connection. The connection is established by first and second interfaces(120,13d; 240,25) in the devices(1,2). The method includes putting into wait mode, using the established connection, the interface in one of the devices using the interface in the other device. A physical support(A) is activated via an electrical connection through the connection of one of the first and second interface devices of the other interface.