+1 for Ooma.
I dropped AT&T land line and save $60 per month. Once you buy an Ooma, you only pay the taxes which is about $3.80 a month. I was even able to transport my AT&T number over to Ooma for about $45 bucks. My whole system paid for it self in 4 months. I've had it for over a year and no problems, except when the power went off for 8 hours...thanks So Cal Edison.