these are the sounds found in most native Kiswahili dialects:
there are also sounds not on the chart

Other sounds:

labio-velar central approximant [w]
aspirated voiceless stops (bilabial, alveolar, and velar)
ejective voiced stops (bilabial, alveolar, and velar)
prenasalized voiced stops (bilabial, alveolar, and velar)
aspirated voiceless postalveolar affricate

in loan words, voiceless and voiced dental affricates occur
in loan words, voiceless and voiced velar fricatives occur

(from: Kaye, Alan S. (Ed.) and Daniels, Peter T. (Tech. Ad.). 1997. Phonologies of Asian and Africa (Including the Caucasus). Volumes I and II. Winona Lake, Indiana: Eisenbrauns.)