NATO phonetic alphabet by those who exchange voice messages by radio or telephone, regardless of language differences or the quality of the communication channel. The 26 code words in the NATO phonetic alphabet are assigned to the 26 letters of the English alphabet in alphabetical order as follows: , Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, , Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu. Strict adherence to the prescribed spelling words is required in order to avoid the problems of confusion that the spelling alphabet is designed to overcome. As noted in a
International Phonetic Association International Phonetic Association The International Phonetic Association (IPA; French: "", "API") is an organization that promotes the scientific study of phonetics and the various practical applications of that science. The IPA’s major contribution to phonetics is the International Phonetic Alphabet—a notational standard for the phonetic representation of all languages. The acronym IPA is used to refer to both the association and the alphabet. On 30 June 2015, it was incorporated as a British private company limited by guarantee. The IPA also publishes the "Journal of the International Phonetic Association". In addition, it arranges for the quadrennial International Congress of Phonetic