What is NG112?
NG112 is a modern architecture on how emergency networks look like in a digital world. Based on IP technology and the Session Initiation Protocol (SIP), it enables routing of emergency calls via IP networks. NG112 is standardized through publicly available ETSI standards TS 103 479 and TS 103 698 and therefore open for integration of various emergency services.
Emergency calls according to NG112 standards not only allow for ordinary communication via audio, but also enable video, text and integration of sensors and IoT devices.
Emergency Service Routing Proxy
ESRP, a functional element which is a SIP proxy server that selects the next hop routing within the ESInet based on location and policy.github.com/kamailio/lost
Emergency Services IP Network
An ESInet is a managed IP network that is used for emergency services communications, and which can be shared by all public safety agencies.
Emergency Call Routing Function
ECRF, a functional element which is a LoST protocol server where location information (either civic address or geo-coordinates) and a Service URN serve as input to a mapping function that returns a URI used to route an emergency call toward the appropriate PSAP for the caller's location.
Policy Routing Function
PRF, a functional component of an Emergency Services Routing Proxy that determines the next hop in the SIP signaling path using a policy.