Yes. A coworker once told me I talk too fast on the phone. After getting angry for a moment that someone would think they can tell me how to speak, I realized they were right and that other people were having trouble hearing me and following what I was saying. I worked on it, and now people compliment me on my phone skills. For the past 5 years I've worked from home and am on hours of calls a day. Immense benefit, and I will always be grateful they said something.