How to setup 4G Calling?

Modified on Tue, 16 Jun at 10:20 PM
iPhones:
Good news! 4G (VoLTE) Calling is enabled by default on all supported iPhones.
Samsung Galaxy:
1. Open Settings.
2. Tap Connections.
3. Tap Mobile Networks.
4. Toggle 4G Calling (or VoLTE calls) to ON.
Most Androids:
1. Open Settings.
2. Tap Network & internet.
3. Tap Internet (or Mobile Network).
4. Tap the settings icon (cog) next to your Rebel Telecom SIM.
5. Toggle 4G Calling to ON.
Look at the top of your screen while making a call. If the signal icon shows 4G or LTE during the call, you are successfully using 4G Calling.