You might also consider giving them the option to skip your voicemail message completely by pressing another key (again, check with IT). You also want to make callers aware what you will return their call, instead of telling them that you will try to return their call--and let them know when you are likely to do it, if possible. If necessary, provide additional or emergency information in your voicemail greetings. My dentist, for example, lists his cell phone number for emergencies.
Business Phone Systems often come with feature codes you can dial to complete a task. This includes listening to and managing voicemail.

It’s also imperative for you to relay that message. If a client comes unprepared, you know your time is going to be wasted trying to work around a missing document. To avoid this, make sure your voicemail greeting emphasizes the importance of coming to a meeting prepared with any information that will speed up the process and make your life easier. Highlight some of the most common documents and pieces of information a client will need to bring, so they start off on the right footing.
A professional and personable voicemail greeting is beneficial for several reasons. Read ahead to find out what these are. It’s true that voicemail is often the first Point of Contact (POC) that an existing or potential customer has with your brand or business. Good business rules dictate that you should provide customers with as many authentic and standard POCs as possible.