I have had Vonage for about 8 months now, and I have found it is works fine on some days, and no so good on others. If you have a Home Security System, you can forget it. Vonage and any Home Security System are not compatible. I have had the Security Personnel out to my house on several occasions trying to fix the problem, which is, if the alarm goes off, the Security System will not call the Security Company to let them know someone has broken into my house. Also, everytime you call VONAGE Helpdesk, you get someone from Bangledesh, India. I am not prejudice, but I also need to understand more than 50% of the conversation. I am a Network Engineer by trade, and have been for over 10 years, so I do know what I am doing. Anyway, I am getting rid of VONAGE and I have already signed up for Sun Rocket. I have talked to a Friend and fellow Network Engineer, and he has not had a moments problem with the service, his Home Security System, and the best thing of all, the Helpdesk is Local in Winchester, Virginia. I will let you know how it works out.