The bottom line is that a business’s situation is likely to change often and rapidly, each of which need a unique and applicable voicemail greeting to cover the circumstances and timeline. For example, callers shouldn’t reach a business-as-usual voicemail, and therefore expect a return call within the business day, if the subject they’re calling is out on vacation for two weeks. Such a lack of communication is a recipe to lose that caller’s trust and tarnish the brand’s reputation.
Reliability -- Will your phones work all the time, wherever you are? Will they work as well in your office as they will a thousand miles away?

These people have invaluable insights into what's actually needed versus what's simply cool and new. Remember, a VoIP system is much more than just a new set of phones; these platforms have very long feature lists, but many of those features can change your overall price so you need to know what you need and what you don't. For business-level users, figuring all that out starts with understanding what VoIP really is.
When you have new voicemail, the Phone tab in the Skype for Business main window displays the number of your messages. See Contact Card opens the caller's contact card, which lists their phone number, email address, office location, and so on. Open Item in Outlook provides more information about the call.