S.A.
I use Vonage for my business phone and haven't had any real issues. The voice quality has been pretty good-rarely I'll have some static. It is quite a bit cheaper than the AT&T charges. You have to have internet service, obviously, so if your internet service is through AT&T, you have to keep that line. But if you have cable internet, that should work. We do keep one landline for our internet, from AT&T. I had a bad experience with another VOIP phone company-SunRocket. They were cheaper than Vonage, but after paying for a year upfront, they went belly-up about 2 months into my year, so I was out of luck. Our homeline is on the company that took over for them- Teleblend, we've had them about a year and that is cheaper ($15/month) than Vonage, but I sure wouldn't pay for a year in advance, just go month to month. Also on Vonage, you can get a cheaper rate if you don't think you'll use over a certain minute limit (I think its 500 minutes per month). Hope this helps.