Conference interpreting involves orally translating discussions between speakers of different languages, such as at international meetings. Conference interpreters must be fluent in multiple languages, have excellent memory and concentration, be able to understand complex topics quickly, and be comfortable traveling. Judicial interpreting involves translating legal documents and court proceedings. Escort interpreting provides simultaneous translation for small group meetings over extended periods of time, such as business trips. Public sector interpreting, also called community interpreting, translates in social services settings like healthcare, education, and local government. Sign language interpreting orally translates between speakers of sign languages and spoken languages. Medical interpreting specifically facilitates communication between medical professionals and patients who speak different languages.