G667:2021 Mobile Originated One Way Emergency Calls

G667:2021 (.pdf, 336 KB)

The Guideline identifies scenarios where mobile devices are used to make an Emergency Call with a SIM intended for one way communications e.g. a data-only SIM for the Internet of Things (IoT).

It specifies what may or may not be possible for a call back by an Emergency Service Organisation (ESO) or a Welfare Check by a Carrier or CSP.