The initiative is similar to Optus' partnership with Starlink, and would allow customers to send text messages even when they don't have service.
The Telstra-powered telco is the latest MVNO to offer up eSIM.
It successfully completed a phone call powered by LEO satellite connectivity.
If implemented, Vodafone and Optus customers would be able to "roam" on the Telstra network (and vice versa) in the event of a natural disaster-related outage.
Discover how to call India from Australia with telcos like Telstra, Optus, Vodafone, Belong, Dodo and more.
2023 feel like a blur? Here's the breaking stories from across the mobile industry this year including Optus' outage, price hikes and more.
Check out the best international roaming plans for travelling South America from amaysim, felix, Vodafone, Tangerine and more.