The script distinguished the four vowels of Akkadian and 15 consonants, /p/, /b/, /k/, /g/, /t/, /d/, /š/, /s/, /z/, /y/, /l/, /m/, /n/, /r/, and /h/. The Akkadian voiced pairs /p, b/, /k, g/, and /t, d/ may not have been distinct in Elamite. The series transcribed "z" may have been an affricate such as /č/ or /c/ (ts). /hV/ was not always distinguished from simple vowels, suggesting that /h/ may have been dropping out of the language. The VC glyphs are often used for a syllable coda without any regard to the value of V, suggesting that they were in fact alphabetic C signs.