Converting into eSIM from physical SIM card has lot of advantages, mainly increased security of your smartphone, and easy portability of another network incase if you frequently travel abroad
• Connect to Wi-Fi and open the My Telstra app on your device.
• Go to Services → Select your service → Set up or manage eSIM to transfer or restore.
• Go to Settings → Mobile → Select your service.
• Tap Convert to eSIM and follow the prompts.
• Turn on your new device.
• Download the My Telstra app and sign in with your Telstra ID.
• Go to Services → Select your service number → Follow the prompts to activate your eSIM.
• Keep both devices nearby.
• On the new device, go to Settings → Mobile → Add eSIM.
• Select Transfer from Nearby iPhone/iPad and follow the prompts.
• Open the My Telstra app to manually activate your eSIM.