For office or work purposes, formal greetings are appropriate. That doesn’t mean you need to sound tired or boring and speak in a flat voice. Why not try something different and get motivated by the following greetings?
There’s nothing more crucial to your business than the image you create to your customers, community, and your prospects. With a lot of fly by night and home based businesses today, it is more crucial than ever to show your business company in right light and to tell those that make business with you that you’re a trustworthy and credible entity.

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.
iPhone users have another option: You can send a voice message from Apple's Messages by tapping the microphone button inside the text box (this works only when you're messaging other iPhones). By default, these voice messages last for only two minutes before they are deleted, but you can change that. Either tap Keep under any sent voice message or go to Settings > Messages and tap Expire under Audio Messages. You can set the expiration date to Never, but this affects only your record of the conversation, not the recipient's.