Empowering Connectivity for the Future!

📶 Stay Connected Seamlessly with VIVIFI!

As the digital landscape evolves, so does your connectivity. With the imminent shutdown of Singapore 3G networks, it's crucial to ensure your device is prepared for the transition to 4G and 5G technology. 

After 31 July 2024, you will not be able to use a 3G mobile phone with your existing VIVIFI SIM card/e-SIM.  

If you use a 4G non-VoLTE mobile phone, you will not be able to make or receive mobile calls.

VIVIFI is Ready

No need to change SIM Card / e-SIM

Your existing VIVIFI SIM cards / e-SIM are 4G/5G enabled.

4G/LTE Voice call

VoLTE* will be enabled automatically upon 3G shutdown.

*Voice over Long-Term Evolution (VoLTE) offers 4G mobile voice calling via the LTE/4G mobile network

What do you need to do?


Check if your mobile phone is in the recommended mobile phone list. If so, you are good to go. 

Otherwise, please help to work on #2 and #3.

Click here for list of recommended mobile phones


You see a 3G or H+ network bar in the top-right corner of your mobile phone screen all the time

Please get a 4G mobile phone with VoLTE.



Verify that your 4G mobile phone supports VoLTE or 4G Calling. You can find this option in your phone's mobile network settings. It is defaulted to use VoLTE for some newer 4G/5G mobile phones. 

Otherwise, please get a 4G mobile phone with VoLTE.


It is important for VIVIFI to have you connected. 

❌ Potential Issues for 3G-Only Devices or Non-VoLTE Devices 


🚫 Emergency Call Concerns

You may lose the ability to make emergency calls to '999' in critical situations.


🚫 Loss of Voice, SMS, and Data Services

 Without upgrading to a 4G Device with VoLTE device, you risk losing access to essential voice, SMS, and data services.

VIVIFI's Support for Smooth Transition

🔄 Turn ON VoLTE option

By end of July 2024, please switch on VoLTE option on the mobile device.

At VIVIFI, we're dedicated to ensuring your connectivity remains seamless and hassle-free. Have your 4G mobile device ready and embrace the future of communication with confidence.

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