Professional phone etiquette refers to the specific set of skills required to maintain a phone conversation at work. Everything from active listening, to pronunciation fall under this umbrella term of professional language skills. In fact, it even includes things like being aware of how loud and quickly you speak. Because without facial expressions or body language, everything about your voice matters. Which is part of what makes professional phone conversations so intimidating, even for those who are fluent English speakers. It also contributes to overwhelming ESL employees (who speak English as a Second Language) just by mentioning the phone. This is where corporate language training comes in.