Vocal skills
Good communicators know that what they say is often less important than the way they say it. Use your voice to make an impact by:
adjusting your pitch to suit the conversation
adjusting your volume to ensure clarity, and suit your customer's comfort and hearing needs
speaking in a steady tone of voice to show calm and confidence
slowing the speed of your speech so it is calm and clear
varying the inflection in your voice to suit your message - to show enthusiasm, common sense, interest, and gravity
enunciating your words clearly
varying the quality and intensity of your voice to hold interest
conveying meaning using the sound of your voice to reinforce your messages.