Text-to-911 is a technology that enables emergency call takers to receive text messages.[1] Its use is encouraged for people with hearing impairment or who have trouble speaking; it can also be used for situations when it is too dangerous to call.[2] Text-to-911 has been supported by the four major cellular providers in the United States since 2014,[3] but as of October 2018[update] it is only supported by approximately 1,600 of more than 6,000 emergency call centers.[4]
The FCC maintains a registry of areas supporting text-to-911. All carriers are required to send bounce-back messages to inform the sender that the message could not be received if text-to-911 is not supported by the local call center.[5]
The National Association of the Deaf provides a map of states providing text-to-911.[16]
Call centers are usually funded by both state and federal funding.[4] Limited funding and outdated technology have slowed the adoption of text-to-911.[4] Voice-based calls are still preferred and considered the more efficient form of communication.[1] Many cities are concerned about overuse of texting, which may slow response times.[2] Texts to 911 are not prioritized so they may be slow to be delivered.[5]
In August 2009, Waterloo, Iowa, was the first county to begin receiving texts to 911.[17]