When you have a business that receives clients from all over the Unites States, it is pretty much essential to have an 800 number. However, when you add the cost of this to the cost of a business cell phone and a fax number, it can really add up. That’s why a lot of people are starting to use services like ringcentral that combine all of these in one place. They can also use the service to store their messages, and even have them sent to several e-mail addresses. And there are websites where a person can get ringcentral referral codes which give them a free trial membership.