Hi Greg -
1. Create a schedule that matches your business hours.
2. Create a call handler and set the schedule you just created. Assign the call handler the extension of the phone line being forwarded to voicemail. Record a standard greeting for the call handler, but set the After Greeting action to NOT take a message.
3. Select the CLOSED greeting and record a message. Set the After Greeting action to Take a Message. In the Messages Tab of the Call Handler, designate a recipient for the message. Enable the Closed greeting.
4. Disable the Alternate greeting so it will no longer overide the other two.
Give that a try :-)
Ginger