Website with Information on Cell Phone Accessibility
Accesswireless.org is a site created by "CTIA-The Wireless Association," an international nonprofit membership organization representing the wireless communication industry.
One of the things they focus on is wireless accessibility for individuals with disabilities. Check out their guides "for consumers with disabilities to search for accessible wireless products and services": http://accesswireless.org/Find/Guides-How-Tos.aspx.
Click this link to visit http://www.Accesswireless.org.
The Assistive Technology Blog