Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.
Voicemail and voice messages are among the top ways every professional business can use to enhance their customer services. Though this idea may sound strange to many in the internet age, this kind of mail is a proven source of solutions for business communications and customer service.

The thing with voicemail is it can be really handy when it comes to catering to your prospects when you are not available after work hours.
If your auto-attendant starts with the main menu of options, it needs to be clear and have the option to speak with a human-being if the question isn’t answered by the list of options. Try something like this: