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
Uralic Phonetic Alphabet and back illabial vowels are still transcribed with the addition of diacritics, as and . The following table describes the consonants of the UPA. Note that the UPA does not distinguish voiced fricatives from approximants, and does not contain many characters of the IPA such as . When there are two or more consonants in a column, the rightmost one is voiced; when there are three, the centre one is partially devoiced. ˀ denotes a voiced velar spirant. ᴤ denotes a voiced laryngeal spirant. For diphthongs, triphthongs and prosody, the Uralic Phonetic Alphabet uses several forms of the tie or