ISO/IEC 14543-3-10, EnOcean, describes a wireless protocol for battery-free wireless technology
. The telegram of this radio protocol, Wireless Short PacketProtocol (WSP), is specially optimized for short data packets and lowest energy consumption. It consists of several data fields, the first of which is labeled RORG, which stands for Radio ORG and is used to designate the telegram type. However, there are exceptions for encapsulated subtelegrams, which are not defined in the standard.