The Status Greeting is a premium feature available to YouMail Business subscribers.
Use them to let your callers who are greeted with "Smart Greeting - Business" hear your current status.
Here are some examples of the Status Greetings:
"Hi John, Mary is currently on vacation until September 19, 2013"
"Hi John, Mary is in a meeting until 3:00 PM"
You can setup your Status Greeting on our web site here
Doesn't Expire: The status greeting will not expire.
Expires On: The selected status greeting expires at the specified date/time. The status greeting returns to default "Not available" when the status greeting expires.