If you’re out of the office, a voicemail greeting will essentially act as the first line of communication between you and clients or potential clients. So of course, this could be a great opportunity to add a hint of personality, while of course still remaining as professional as possible. That doesn’t mean you can’t have some fun with it!
Rollover Hunting is a feature that is managed by the Account Manager or Phone Manager. It allows incoming calls to your primary phone line to roll over to the next available line and, if al l lines are busy or not answered, the call can roll over to voicemail. It will hunt through all lines in the group once to find an idle line. You can configure multiple hunt groups and the number of rings before the call is routed to the next li ne. Each hunt group must have a minimum of two lines and a unique primary number. There are three hunt sequence options:

Calls overflow to the voicemail box if they can’t be answered during business hours. This may be during unusually busy periods or if there is no one to take the call.
If you are going to be unavailable for a predetermined time, let people know. Example, if you are on vacation for the next two weeks, inform your callers in your greeting that you will be returning calls on such and such date. This way they expect it to take a couple of weeks before you get back to them instead of stewing over why you haven't returned their call.