Researchers from the University of Michigan Medical School found that audio-only appointments represented almost half of all telehealth visits in a recent study. Chad Ellimoottil, M.D., an assistant professor of urology at the Medical School and telehealth expert, explains that audio-only appointments might be an essential medium for specific patient populations that prefer audio over video or do not have the technological capacity for video calls. However, the future of audio-only telehealth appointments is uncertain, and providers worry about disparities in care.