E112 is a location-enhanced version of 112. The telecom operator transmits the location information to the emergency centre. The EU Directive E112 (2003) requires mobile phone networks to provide emergency services with whatever information they have about the location a mobile call was made. This directive is based on the FCC's Enhanced 911 ruling in 2001.
The new eCall project for automated emergency calls from cars is based on E1000.
Read more about this topic: 112 (emergency Telephone Number)