WiFi Calling is really easy to use with no apps to download, or packs to buy - you just use your phone as you normally do.
Once WiFi Calling is enabled on your phone, you can talk anywhere there is WiFi - even if mobile coverage is unavailable. Your phone will automatically select WiFi Calling when suitable WiFi is available.
WiFi Calling works and is charged "like you are in New Zealand", no matter where you are in the world. If you are roaming, then calls will be charged as if you make that call from NZ*.
So, when you are roaming;
If for any reason WiFi Calling isn't doing what you expect you can simply go back to your phone settings and turn it off.
If you are using a Roaming Pack for calls and texts, then WiFi Calling will use that Pack as if you were using mobile coverage. The only exception is the Islands Pack (Fiji, Samoa, Tonga, Vanuatu, PNG). With the Islands Pack, if you use WiFi Calling to make local calls you will be charged as if it's an international call from NZ. You will however, be able to receive calls using WiFi Calling with no roaming charges*. So in short, to get the best bang for your buck with the Islands Pack we recommend leaving WiFi Calling on most of the time, and then switch over to the mobile network before you make a local call. When you're done - you can switch WiFi Calling back on.
*Broadband charges may apply if you're not using 2degrees broadband. NZ international call rates apply, including all calls made from overseas to destinations other than NZ & Aussie, including calls made within the destination you are visiting.