Before you record a professional voicemail greeting, you may want to consider the type of people who might call your home or business. That way, you can think about the information these callers might need before you compose your greeting. Most callers are familiar with how to leave a voice message, so try to avoid giving them instructions. Some things you may want to include in your greeting might be your full name, title, name of your company, and an alternate method of reaching you. If you plan to be unavailable for some time, it can be a good idea to tell your callers when you will return and give them the name and phone number of another individual to call in the event they need immediate assistance. A private voicemail box enables a person to receive telephone messages when the phone cannot be answered.
Here are a few sample voice mail greetings to get you started: Standard Voice Mail Greetings. Normal Greeting (Without pager notification) "This is (name) of (company). I'm currently unable to take your call. Please leave your name, phone number, and a brief message, and I will contact you as soon as possible. Thanks."

Top 13 Professional Voicemail Greetings – Examples, Scripts, Samples, Audio Recordings
Combine with a Business Intro Message to provide menu options and assist in telephone navigation. As opposed to the passive nature of Messages On Hold, voice prompts are interactive. They are designed to bring out a physical reaction from the caller, a call to action. And because voice prompts are directive, it’s important they’re concise, well written, and recorded by a professional voice artist.