This company has stolen over 300 dollars out of my bank account. Warning vonage business systems do not work over comcast phone lines. They do not tell you that. They say it is a 30 day money back garantee but it is not true they make you buy cheap phones bill you in advance. I was not able to make one phone call and they still billed my account for NO SERVICE. THERE TECHNICAL DEPARTMENT ARE IDIOTS They are a rip off I call customer service and they say to bad we aqre charging your card anyway and would not reverse it. DO NOT USE VONAGE BUSINESS SYSTEMS PHONE SYSTEMS THEY WILL CHARGE YOU AND THE PHONES DONT WORK OVER COMCAST. I JUST CALLED CUTOMER SERVICE TO SEE WHY I WAS BILLED FOR A SERVICE I CANCELED AND THEY HUNG UP ON ME. DO NOT USE VONAGE V.O.I.P. it does not work and they continue to bill your account even after you cancel.