You will want to set up a "Closed Greeting" where the After Greeting Action is "Hang Up" (or transfer back to the Opening Greeting, or whatever you want other than "Take Message"). Also be sure that the user has a Schedule associated with their voicemail account that reflects "Open" and "Closed" times so that the Closed Greeting will take effect.
For politeness, have the user record the Closed Greeting with something like, "You've reached the voicemail box of Chris Doe after hours. Please call back during business hours. Thank you."
Maren
