Presumably, you know how to impress a future employer or client in person — dress for success, armed with your winning smile and handshake; and you know how to show interest using body language and facial cues.

But when you’re on the phone? That’s a totally different game.

Now, most first-round interviews and client meetings are conducted over the phone, and it’s just as important to know how to impress using your voice alone.

This infographic from The Gap Partnership gives a comprehensive rundown of how to land the job or deal over the phone.