UEIR

UEIR (Universal E911 to Internet Registration) refers to the Short Message Service (SMS) based solution for Enhanced 911 (E911) location of cell phone when a 911 call is made in the USA.

E911 requires cell towers to provide location data of cell phones of subscribers who call 911. The Federal Communications Commission (FCC) mandates compliance since 1996. The UEIR solution uses a different method to deliver a cell phone's location to the 911 operator, one that offloads the locationing data from the network to the text message service.

UEIR SMS works by sending a short message to a designated GSM Service Center, which then calculates a cell phone's location. SMS is then used to send the cell phone's coordinates to the appropriate 911 establishment. In this method, SMS handling does not depend on any particular manufacturer or network OEM.

The term UEIR comes from E-DORs and 911Cell (E911 and cellular); a few other countries have implemented cellular E911 protocols (although the specifics can vary). This remote registration method is deployed in countries previously foreign.