Grasshopper was essentially designed for small offices who want to present a more professionally packaged telecommunications front. Ultimately, though, it's the U.S.-based Grasshopper's simplicity that makes it the winner.
All VoIP providers offer virtual phone numbers. Any phone number that is not provided by a traditional phone service provider is a virtual phone number. That's because virtual phone numbers aren't tied to a physical location like the phone numbers you receive from a traditional phone company.

Voicemail Office has enabled our non-profit organization to run smoothly and efficiently while giving it the professional image of a large, multi-department office. I love the ability to easily transfer calls between extensions, even when one of us is away from our desk! Voicemail Office has also helped to consolidate our messages by allowing us to receive and store voicemail and faxes in one place. I highly recommend their services!
A voicemail greeting is a simple message that plays before callers leave a message. It may play either when you don’t answer or if your phone is off. A professional greeting may encourage people to leave messages, which in turn makes it easier for you to get back in touch. Keeping that communication open and efficient may lead to better business relationships. It also helps you put forth a professional image for your business.