Introduction to VoLTE
VoLTE is short for Voice over LTE, a technology that utilises LTE mobile date network to transmit voice calls. It requires both network and handset support to bring you a faster and clearer call experience. SmarTone Prepaid Card has upgraded you to VoLTE with no charge!
How to activate
If you are using a handset with iOS14/Android 12 or later, VoLTE is already enabled by default, and no action is required.
For other mobile operating systems that support VoLTE, please follow the steps to activate:
iPhone iOS13 or earlier: Go to “Settings” > “Mobile Data” > “Mobile Data Options” > “Voice & Data”, and select “LTE", "Enable VoLTE.”
Android 11 or earlier: Go to “Settings” > “Connections” > “Mobile Networks”, and enable “VoLTE calls.”
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.
FAQ
Why can’t I find the option to enable VoLTE in my phone settings?
If you are using a handset with iOS14/Android 12 or later, VoLTE is already enabled by default, and no action is required.
When using VoLTE voice service locally, is there an extra charge or does it deduct from my local data usage?
There is no additional charge and it won’t deduct from your local data usage.
What are the requirements of using VoLTE Roaming Service?
You have to meet all of the following criteria:
1. Use a VoLTE-compatible handset and software
2. Enable VoLTE function on the handset
3. Enable IDD & Roaming
4. Connect to a VoLTE-supported mobile operator in designated VoLTE-supported destinations
How do I use VoLTE Roaming Service?
Dial + Country/Territory Code Area Code (if applicable) Telephone Number
Note: To make VoLTE roaming calls within destinations / to other destinations, it is necessary to have both IDD & Roaming services enabled.
Can I use VoLTE Roaming Service if I turn off data roaming on my phone?
Yes, simply enable VoLTE in your phone settings
Does VoLTE roaming calls incur charges?
The charges for using VoLTE Roaming Service are the same as standard roaming call charges. VoLTE roaming calls are charged on a per-minute basis, call duration is rounded up to full charge units for computation purposes.
Will using VoLTE Roaming Service deduct my roaming data usage?
