Don Crawley, Author.

I recently spoke with a client who is concerned about how some of his staff members speak to CEOs. He owns an IT consulting firm with a variety of clients and is worried about his consultants' communication skills. His consultants are required to interact with various individuals both on the phone and at client locations. He is concerned that some of the consultants' language choices are inappropriate for dealing with clients, especially when the client in question is a C-level executive.

How to Talk to a CEO; Professional Communication Skills for the Helpdesk