Kung language (Cameroon)
Kung is a Grassfields Bantu language of Cameroon.

Consonants 

Tatang enumerates 24 plain consonants, 9 prenasalized consonants, 7 labialized consonants, and 6 palatalized consonants, for a total of 46.

Vowels 
Tatang counts 10 vowel phonemes.

Tones 
In addition, Kung contrasts six tones--three level tones (high, mid, low) and three contour tones (rising, high-mid, and falling). Tatang argues that the contour tones are combinations of register tones.

References

Further reading
 
 
 
 

 

Ring languages
Languages of Cameroon