Tip: If you are a larger business and this is a voicemail that pertains to the general business number, then you want to sound professional and provide as much information as you think is necessary for a potential client. Usually, the company website URL or the company email is a good way to get the customer to contact you through other means.
Some people try to get really fancy with their voice mail greetings and they will put the current date on their message. This requires you to update your voice mail greeting daily. This level of customization is completely unnecessary and often leads to problems when the user forgets to update the actual date itself. However, updating your outgoing voice mail message to reflect a particular season or holiday can be a nice touch as long as you remember to change it accordingly.

The best way to get a call back is to make the prospect feel like it’s all about them. Focus on what they want and how you can provide the solution.
The simple truth is that you need to be more aware of what you’re leaving for other people to hear. Sure, this doesn’t always register as a priority for users, but it’s never too late to reassess your greeting. a. Reading/Speaking in the Imperfect Tone: Tone is absolutely everything. Users don’t want to come off as being too nice, as it sounds insincere, or being too terse, as it can be interpreted as being rude. That being said, striking the right balance is absolutely essential. Your greeting exists as its own entity, and therefore, it should NOT rely on callers’ familiarity with you. Instead, it needs to appeal to the masses. As such, your inflection, i.e. the way you state your name and directions, needs to be both welcoming and firm. b. Injecting Humor & Insincerity: While humor/light heartedness can be welcoming, it can also convey a sense of informality, insincerity, and ultimately unprofessionalism. Why, because you’re not there to lend your humor or to contextualize. Instead, you’re assuming the caller has a working knowledge of your personality to ground the message. Though this might not sound like it’s all that terrible—it can be detrimental. As stated above, one should NEVER rely on a caller’s familiarity with you. Instead, aim to appeal to the masses. Humor is ultimately subjective, meaning not everyone has the same tastes; therefore, someone is bound to be turned off by a quirky or off-color remark. While implementing a light-hearted or even tongue and cheek tone can work, it’s just a really bad idea.