Some carriers may not support this feature.
Enable VoLTE to Enjoy HD Calls
Only dual-SIM phones support both SIM card slots enabling 4G, VoLTE, and VoWiFi.
Open
Settings, and go to Wireless & networks > Mobile network. In the settings section
for SIM 1 or 2 (if supported by your carrier network), you can:
Enable 4G: Turn on Enable 4G. Due to carrier customization, there may not be a 4G switch
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on your phone. This indicates 4G is already enabled and does not need to be turned on
manually.
Enable VoLTE calling: Turn on VoLTE calls.
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Enable Wi-Fi calling: Turn on Wi-Fi calling.
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Use VoWi-Fi for a New Calling Experience
You can use VoWi-Fi to make voice and video calls in any location that has a Wi-Fi network,
even when there is no mobile phone network reception.
This feature must be supported by your carrier. Contact your carrier for more information,
including fees and charges.
Dialing
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