From the FCC (3.21.11):
The Federal Communications Commission (FCC) has launched an online national survey (also in Spanish) of individuals with disabilities to determine the most effective and efficient technologies and ways to access emergency services. The survey asks questions to help figure out the best ways for Americans with disabilities to call and get help from 9-1-1 services. Comment deadline is April 24, 2011.
For more information visit https://www.disability.gov/technology/accessible_technology.