Ooma (free phone calls for life) for $160

(update: price raised to $230)

Ooma is a magical box.  It gives you free phone calls to anywhere in the U.S. for life.  It also gives you free voicemail, caller ID, and call waiting.  It can even turn lead to gold.

Ooma is an Internet telephony system, which uses your Internet connection to route phone calls.  Unlike Skype, you can use your regular phone instead of your computer and you can keep your old phone number.  And unlike Vonage, you don't pay a monthly fee.  Ooma's international rates are competitive.

For a limited time, Amazon is offering $30 in credit back to your credit card, so you pay just $160 for the Ooma, compared to $230 plus tax at Costco.