Check Book Prices Using Your Cell With Ringfo
Ringfo is a service that you can call to look-up an ISBN using the keypad of your phone. The service gives you customer ratings, list price, Amazon price, best used price, and sales rank.
I did some testing and have a few tips:
Just enter the ISBN and wait, no “end key” needed
Use the 617 number (the toll free did not work for me)
Remember our tool to look up on the web using mobile devices (free):
http://www.wholesaleremainders.com/isbn.php
