The Federal Communications Commission proposed updates to the E911 rules due to the increase of use of wireless phones to call 911 in an emergency. These proposed changes will help emergency responders better locate wireless callers especially indoors.
The last revision to the E911 rules were in 2010 and accuracy standards that wireless providers needed to meet were based only on the performance of outdoor wireless 911 calls. Many Americans are replacing their landline phones with wireless phones, wireless phones are being used indoors more frequently than previously. Due to this change, 911 callers using mobile phones indoors are more difficult to accurately locate in some indoor environments, like multi-story buildings.