The overarching aim of this study is to evaluate whether telehealth leads to better mental health outcomes and decreased use of acute and crisis-based mental health care services by randomly assigning 300 people with serious mental illness (SMI) and psychiatric instability receiving services at 1 of 2 community mental health centers (CMHCs), each of which offers integrated behavioral and primary health care, to either Health Home Usual Care alone or telehealth plus Health Home Usual Care for 12 months, with assessments at baseline, 3, 6 and 12 months.