This document provides guidelines for proper telephone etiquette. It recommends being respectful, considerate, and allowing others time to speak when on a call. When making calls, know the purpose and don't argue with people who answer wrong numbers. When answering calls, try to answer within three rings, use a friendly greeting, ask the caller's name, and use hold buttons appropriately. It also suggests staying calm and diplomatic when handling impatient callers. The dos include responding clearly, addressing callers properly, listening, and verifying messages. The don'ts are eating or drinking on calls, using slang or poor language, using first names with unfamiliar callers, and long holds.