VoLTE Roaming Service - How to activate - SmarTone
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VoLTE Roaming Service

How to enable VoLTE Roaming Service

VoLTE is enabled by default on iPhone IOS14, Samsung Android 12 or later versions, no further action is required.
Following is a demonstration of the setup on Sony Xperia 1 V (Android 13). Settings may vary for different smartphone brands / models. For enquiries, please refer to the user manual of your smartphone model.