Simply speak into your phone or computer while recording a greeting with your business phone service. If you need to create your own audio file, the voice memo app on your phone should do fine.
Or say that your brand is on a holiday, you can’t miss out on leads because you know their value on your business.

VirtualPBX provides every extension owner in your company with custom routing. If the employee isn’t available, the call will go to the personalized business voicemail account for that employee as a result. In this way, each employee can have a business greeting for callers. Similarly, you can set up voicemail boxes for departments or your company as a whole. Even if the call goes to a phone that already has personal voicemail, we can make sure your business calls only go to your business voicemail system. People that call the employee’s number directly get personal greetings, those that go through VirtualPBX get a business greeting.
As in the situation above, being unable to leave a message can be really frustrating for a Placement Consultant or Hiring Manager who is trying to get in touch with you. You run the risk of not being selected for an opportunity if your consultant/potential employer is unable to leave you a message so ensure you set aside time at least twice a week to clean out your voicemail. You want to be as accessible as possible for potential employers.