KDDI plans to open a dedicated center for emergency messages sent through au Starlink Direct, with operations expected to begin in late May.
The April 23 announcement describes a service staffed around the clock, every day of the year, to receive SOS texts from people outside terrestrial coverage.
The center will review the information and contact the appropriate emergency authorities. It is a relay for a text-based request, rather than a normal voice call to an emergency number.
Initial application support is planned for au Navi Walk and au Car Navi. KDDI also names additional apps it expects to support later.
That adds a human response process to the satellite connection itself. Sending a message is only part of an SOS service; somebody still needs to receive it and pass usable information to responders.
Our Direct to Cell explainer covers how a compatible phone communicates with the satellites. The announced center addresses what happens after the request reaches the network.
KDDI has also recently introduced satellite roaming in the United States. The Japanese SOS-center announcement shouldn't be read as an extension of every domestic emergency feature to overseas travel.
There are practical details customers will need to check, including their subscription, handset, software, and supported application. The existence of a satellite signal alone doesn't establish that a particular SOS workflow is available.
The planned late-May opening is therefore the next date to watch. This release announces the center and its intended operation; it doesn't say that customers can already use the new service on April 23.