There is prepaid phone calling for inmates, though the rules of the incarcerating institutions vary. There are several inmate calling service companies available, though institutions differ on which ones they allow inmates to use.
ICSolutions, Securus Technologies and Pay-Tel are among companies that allow friends and families to set up prepaid calling accounts for inmates. Because each penitentiary or jail is different, the best way to find a prepaid calling service is to search the name of the institution along with the key words, "prepaid inmate calling." Calling service websites also have lists of the institutions with which they work.