Pocketmail.com
It works great. You can buy the unit, made by Sharpe (and someone else, also) for about $119.00. For a fee of $9.95 per month, you can make an unlimited number of calls to an 800 number, thus toll free in the U.S. You hold the unit up to the telephone receiver, push a button, and it sends any emails that you have stored into your unit, and downloads any that have been sent to you. You then can read them, and type any responses. Their internet site is rather clear, and you can also buy the units online there. www.pocketmail.com