Agoi language

Agoi, Robambami, or Ibami, is an Upper Cross River language spoken in Cross River State of Nigeria.

Phonology

Yul-Ifode lists the following vowel phonemes:

	Front	Near-front	Central	Near-back	Back
Close	i i:				u u:
Close-mid	e e:	ɪ		ʊ	o o:
Mid			ə
Open-mid	ɛ ɛː				ɔ ɔ:
Open	a a:

However, she notes that the use of phonemes /ɪ/ and /ʊ/ is in decline, as they are often in free variation with /i/ and /u/.