In the former, the voicemail message shall be delivered to callers from within your company i.e. for communication exclusively for office employees. In the second case, the voicemail will be received by people calling from outside the company. Hi. You’ve reached Martha Johnson in Human Resource department. Unfortunately, I cannot attend the call now. You can leave your message after the beep. Hello. You’ve reached Martha Johnson in Human Resource department. You can either record your message after the beep or contact my secretary Henry Smith at extension 5556. I shall get back to you soon.
6. Ooma. Ooma offers you high-quality phone service and voicemail services. You can now make calls, check voicemails, and receive calls when you’re not at home with this app.

But it could indicate to the caller that you’re not all that concerned about being a professional. So just to play it safe, record your voicemail greeting in a place where background noises are inaudible.
Your voicemail message should ideally answer all of the following requirements: Brief -- nothing bores callers as much (or makes them hang up as often) as long voicemail messages Informative -- if it's your professional voicemail, say your name, business, and if necessary, department.