I had vonage for 2 yrs and it was good. I cancelled because there gettting sued so I thought I'd better get out as I wanted to keep my number that I had... The whole thig is your phone service is only as good as your ISP provider... I had SBC and the sound was good. The only thing I had to do was reboot the phone router once or twice a month... Its also a big savings compare to ma bell.