Voicemail greetings can include any information you’d wish to convey, such as special sales, bargains, alternate phone numbers to use, or your company’s normal working hours.
When you frequently update your business greeting, there is a chance more people will listen to the message. You can update your voicemail with relevant information about your business as a way to keep your customers well informed.

Make sure to keep your voicemail greeting fresh and new. In fact, updating your voicemail regularly will ensure that people actually listen to your message. Anytime you are on vacation, at a conference or other industry-related event, change your greeting to reflect where you are at.
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.