Auditory hallucinations are common in multiple personalities. Since these hallucinations often emanate from alternate persons they -- like the voices in schizophrenia -- may be seen as expressions of unconscious intentional dynamisms that insist on autonomy.
Hallucinations of multiple personalities are experienced, however, as "inner voices." They are not taken as real. Since the I-dynamism reigning at any time in a multiple personality is whole and closed (not broken as in schizophrenia -- cf. Fig.4. Hallucinations) the distinction between Self and World and the critical attitude are preserved. Therefore the person can tell that the voices are of the mind and not of the world.