A secretary in a doctor’s office creates a voicemail greeting that says, “If you have a scheduled meeting with us, we could use copies of all your medical documents from last year, so come prepared.” Using the word “could” gives patients the impression that they don’t necessarily “need” last year’s documents. See the difference between “could” and “need”? Your word choice can impact a future meeting significantly. If you want a customer to perform a specific action, you need to pay close attention to how you express your calls-to-action.
With more and more calls going to voice mail, why not present the most professional and polished welcome possible to encourage detailed and informative messages that will improve the efficiency of responses.

A professional voicemail greeting should be no longer than 60 seconds. List the important information we've discussed above, provide alternative methods of communication and close with a thank you.
Set the right tone for the call by introducing your business in a welcoming manner. The message can be played either by itself or as an intro to IVR prompts.