Even in today's fast-paced world, customers don't like being greeted with an automated message. According to the New York Times, callers of a certain age are put off entirely if they are answered by a voicemail instead of a real person.
You select from one of the following sources to specify what callers hear when a greeting is on: Action Description Re-record This Greeting Voicemail plays a greeting that you record. System Greeting Voicemail plays a prerecorded greeting along with your recorded name (for example, "Sorry, is not available"). If you do not have a recorded name, Voicemail uses text-to-speech to read your display name instead. When a greeting is on but not recorded, Voicemail plays a prerecorded system greeting.

A good business voicemail greeting creates a favorable impression on the customer, whether it’s their first or fifteenth time calling your business. What to say in a business voicemail greeting At the very minimum, you want to say the name of the person or department, and company name so the caller knows they have reached the right place .
Recognize Their Need. When someone calls your business, the voicemail should give them a sense of validation. This means that your voicemail should extend gratitude for their interest in your business, or an apology for not being there to answer your call. These two simple courtesies can go a long way in the creation or establishment of client/business trust. Make it Informative for the Caller. Your voicemail must include all the information the customer will need for your particular business. For instance, if you’re a brick and mortar establishment, it’s wise to include your store hours. It’s also a good idea to leave them an alternate way to contact you, especially if it’s after hours. After all, you don’t want to miss just one potential customer. Here are some suggestions for elements to include in your voicemail: Business name Hours (if brick and mortar) Alternate method of contact, such as email Your name