Emergency calls are contacts to be defined which you must save. These are called when you have the eSIM active or are connected to the mobile phone.
I no longer know how the GPS coordinates are transmitted, but it is possible that they are transmitted with a text message.
It works the same as with Samsun mobiles.
To alert a blue light organisation you have to save this as a contact.

Hello Guido5
If the Multi Sim is active in the watch, you can make autonomous calls with the watch - the mobile can be anywhere. The watch, the SIM must of course have a network. By emergency call I mean the connection to a blue light organisation but not to a private contact. As far as I know, coordinates are only sent with a call from an APP (Rega or similar). The blue light organisation will be able to locate you via the mobile network. With a beacon, e.g. Strava, the emergency contact must also have Strava installed as far as I know.