Whether you’re out for the day or are off for the week, the first rule of an out of office voicemail greeting is: let callers know when you’ll be back! You’ll save them the frustration of continuing to call and yourself the hassle of listening to redundant voicemails. It’s also a good idea to set the expectation of whether you are answering messages while you’re away, and who they can reach for assistance in your absence.
With the Holiday season right around the corner, your office’s voicemail greeting should quickly inform callers of any potential changes in hours, days or availability. Oh, and what better way to spread holiday wishes than with a personalized, updated greeting – of course, while at the same time, keeping your clients and prospects in the loop of where you’ll be and when.

Note: To enable visual voicemail, ask your admin to make sure you are enabled for Exchange Unified Messaging, following instructions in the Configure Skype for Business Cloud Connector Edition guide. Missed call and message notifications
Going away for vacation or leaving the office unattended shouldn't stress you out. That's why OnSIP designed voicemail greeting setup to take only a handful of steps.