Around the world, network operators are retiring their 2G/3G networks to free up frequency spectrum and network resources for their 4G and 5G networks. To make and receive voice calls while roaming in countries where 2G/3G has been switched off, you’ll need to have:
- a VoLTE capable device
- VoLTE enabled in your phone settings and
- Data Roaming turned on.
VoLTE stands for Voice over Long Term Evolution and it allows you to make high-definition (HD) calls over a 4G network. Simply put, when you make a voice call using VoLTE, you connect quicker and enjoy a clearer connection with reduced background noise.
IMPORTANT: By having these settings enabled, you will likely incur daily roaming charges because VoLTE requires data use. If you want to avoid all roaming charges, keep your device in flight mode while you’re away. This means you will not be able to use data, calls or SMS. However, you can use a local WiFi connection while in flight mode to access data and make the most of free WiFi Calling to New Zealand and Australia.
Not all destinations have established their VoLTE networks yet, however these networks are being updated and improved all the time.