I've been using Vonage for a couple of years now. When I first got it, I would occassionaly have a problem where in the middle of a conversation, the person I was talking to, would suddenly not be able to hear me, even though I could hear them perfectly. I went to my local cable company (Comcast) and changed out my cable modem for the latest model. I haven't had a problem since. The only drawback to having VOIP, is if you have a power outage, your phone goes out with it. This is where it's necessary to have a cell phone. If you have a cell phone, even if the power goes out, you can have all calls automatically rerouted to the cell. All the other features available at no additional charge are also great. In my case, I used to pay at least $100 a month between local and long distance; so it was obvious for me to switch over and pay a flat $30 a month with Vonage. What I'm waiting for though, is for Verizon to lay their fiber optic lines (FIOS) in my neighborhood. Then I'll be able to get phone, internet and TV broadcasting for one low flat rate.