For many small businesses, the announcement will send the caller straight to a voicemail box. But larger organizations may decide to direct callers to a phone menu or forward the call to an external destination, depending on the situation. These options can include: Listing individual voicemail boxes for different departments or employees. Forwarding calls to a professional answering service. Giving callers an option to connect to an after hours or emergency support line. Directing calls to a personal cell phone. Presenting menu options for additional recordings about office locations, ongoing promotions, and other information.
Internal Voicemail Greeting Examples: This is used to greet people who call you from within your company (i.e. from another extension). External Voicemail Greeting Examples: This greeting will be played for people who call from outside your company. Your telephone system's automated attendant may play a general company greeting that all

If your business is closing on one of its normal operating days for a holiday, or is dealing with an emergency or unforseen situation, you should update your after hours announcement to avoid confusion.
If you have a main business phone number that’s shared with the customers or publicly listed, you’ll want to make sure it has a professional voicemail message to greet callers. Here are sample greetings you can use to help you craft your own.