An approach to providing medical care by telephone is described and its content and quality assessed by means of an outcome study. Pediatric health assistants have been trained to evaluate, triage and offer home management advice in lieu of an office visit for medical problems presented by parents via telephone. During a four-week study period, data were collected on all calls (N = 2520) using a telephone encounter form. Fifty-nine per cent of all calls involved requests for care of illness, 30 per cent of which were independently handled by the health assistant. Quality of care was evaluated for those cases who received advice in home management by means of a seven day follow-up interview with parents (N = 247). Access, parent satisfaction, residual symptoms, and the need for further care were ascertained. Greater than 90 per cent of parents expressed satisfaction and 92 per cent of problems had resolved. Results indicate that this telephone care system can effectively sort out and advise parents in home management for the many minor problems which occur in a pediatric practice, thereby increasing time for direct contact with patients.