The European Telecommunications Standards Institute (ETSI) is a non-profit organization that establishes telecommunications standards for Europe. ETSI guidelines are voluntary and almost always comply with standards produced by international bodies.
ETSI initiatives touch on the following areas: aeronautical radio, API, ATM, electromagnetic compatibility, electronic signature, Generic Addressing and Transport protocol, maritime radio, service provider access, Telecommunications Management Network (TMN), TETRA, VoIP, and xDSL.
ETSI's structure includes a general assembly, a board, a technical organization, and a secretariat. Its technical organization has primary responsibility for devising standards.
ETSI is headquartered in southern France. It currently has 789 members from 52 countries and five continents. Its membership list features some of the biggest names in technology, including IBM Europe, Microsoft Europe, Hewlett-Packard France, Motorola, and Lucent Technologies. Membership is open to any firm with an interest in European telecommunications. Each member pays an annual fee to join ETSI.