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.
You don’t have to spell out every single thing that you think they might want to know. Have some faith that your callers will be able to figure things out on their own. Be natural but informative.

In the Destination field, select IVR Menus, then New IVR. Provide a name for your IVR (eg. "Incoming"), then enable the Allow Extension Dialling option if callers should have the option of directly dialing a staff member's extension number. From the Greeting field, select an existing sound file on the PBX (if applicable), New Sound (Upload) to upload a greeting file from your computer, or New Sound (Record) to record an announcement from an existing extension. As this field specifies the audio file with the options (eg. Press 1 for sales), we do not recommend routing to this IVR without an announcement in place (Announcement: Disabled).
After helping tens of thousands of companies set up voicemail systems, we’ve learned that there is no set of rules defining what makes a great business voicemail, but there are definitely some key points that you should aim to hit. Before you hit the record button for your voicemail message, take some of these tips into account: