Most people screen their phone calls and often avoid answering unknown numbers. If you’re applying for new positions, you should try to view each unexpected call as an exciting opportunity! In the event that you simply can’t pick up the phone, you’ll want a polished voicemail greeting to let the caller know they’ve reached the right person.
Therefore, as a rule of thumb, it has been advised that business professionals should return calls within 24 hours. If for any reason a prompt callback is not possible, for instance, if it is known that the call may be lengthy and the individual does not have time to talk until another day or so, they should still leave a brief voicemail message to acknowledge receipt of the call and advise when they anticipate being able to have the discussion. Additionally, voicemail messages should be checked at least once a day, if not more.

1.) You are connected to the mailbox of John Doe. Currently Mr. Doe can not be reached. You can call again at a later time or leave a message with your name and phone number that Mr. Doe can call you back as soon as possible.
When you create a professional voicemail greeting, it can be a good idea to think about what your callers might want to know. After doing so, you can make a list of points to cover in your voice message; it might also be a good idea to write out the entire greeting on a piece of paper. The ideal message should be somewhere between 10 and 20 seconds, so you may want to time yourself repeating your message before you record it. After composing your telephone message, it can be a good idea to get a second opinion of this greeting so you can make sure it sounds professional. Writing down a voicemail greeting helps prevent mistakes when recording it.