This is a test of the Answering Machine Broadcast System. This is only a test. This is not an answering machine–this is a telepathic thought-recording device. After the tone, think about your name, your reason for calling, and a number where I can reach you, and I’ll think about returning your call. We are unable to come to the phone right now.
As a bonus, here is an example of our own holiday voicemail greeting here at OpenPhone:

People may not want to give information about who lives in their home to unknown callers for a variety of reasons. This information may be used by telemarketers who could then ask for you by name when they call again, scammers who might do the same, or people who are not interested in your welfare. Women living alone for instance may use the “we” instead of “I” to suggest more people living in a house, and can even opt for using the machine generated message or computer generated “male voice” instead of their own voice to increase their security at home. For personal security reasons, you might want to avoid indication of children in the home, too, and you certainly shouldn’t mention that you’re on vacation.
These were just some ideas for voicemail greeting. You can definitely include your own creativity to them and make them your personal answering machine greeting. The choices are endless when you start thinking of how to add some oomph to your machine.