The first International Radiotelegraph Convention (French: Convention Radiotélégraphique Internationale) was held in Berlin, Germany, in 1906. It reviewed radio communication (then known as "wireless telegraphy") issues, and was the first major convention to set international standards for ship-to-shore communication. One notable provision was the adoption of Germany's "SOS" distress signal as an international standard.[1]
The resulting agreements were signed on November 3, 1906, and became effective on July 1, 1908. These standards remained in effect until they were updated at the second International Radiotelegraph Convention, held in London in 1912.