The beauty of the system is its reliance on the internet, which literally cuts the cord from your old phone operation. Of course, that also gives some managers pause. You may worry about internet outages that would leave you unable to communicate with your customers. With reliable internet service, this problem should rarely occur. Also, messages would be relayed and stored at a message center until power was restored. As a precaution, you could keep one landline in the office for those rare occasions when your internet might go down. However, if your internet system work well for you now, you are a good candidate for a VoIP.