Wi-Fi Calling is a service for smartphones which, just as it sounds, allows you to call over a Wi-Fi network. Wi-Fi calling relies on a technology called SIP/IMS that tunnels your call through the internet, instead of a cell tower. Consequently, you’re not using the cell tower to place the call, which means that you don’t need a cellular service. When placing a WiFi call it’s just like placing a regular call, without logging in or using an app. Your carrier and phone will determine if you can call through WiFi or not.
Enable Iphone WiFi Calling
- Go to Settings – Phone – WiFi Calling
- Switch the Wi-Fi Calling on This iPhone slider to On.
- Choose “Enable” to turn on Wi-Fi Calling. You can ignore the warning about what data your carrier collects.
Activate Android WiFi Calling
- Open Settings – More – More Settings (under wireless and network).
- Choose “Wi-Fi Calling” and activate it to enable the feature.
- In case you can’t find this option, search for it since it might be located somewhere else in the interface.
Benefits of Calling through WiFi
So why should you be inclined to call through the Internet instead of placing a regular cellular call?
- It’s free (except for data usage) which means that you can use it abroad and avoid paying extra for international calls.
- It could be used where cellular reception is spotty our straight out bad.
- You can make and get calls with WiFi using your phone number.
- You can make video calls without an LTE connection.
Will I use data when calling via WiFi?
Yes, you will use your regular data plan to make calls. Some carriers also charge an access fee.
How much data does a Wi-Fi call use?
It varies but you can assume about 1 MB of data per minute for a call, and 6-8 MB of data for a video call.
Are all phone able to support WiFi calling?
No. You need to have a phone that’s HD Voice-enabled and have the HD Voice feature activated. If you don’t know if your phone is HD Voice-enabled, check this list.
How do I enable HD Voice?
Most phones are by default set to “Data Only”. In order to get voice and data to be sent over the 4G LTE network, you need to manually enable VoLTE. To do so on an iPhone, go to Settings – Cellular – Enable LTE and select Voice and Data.
What if my phone doesn’t support it?
If your phone, or carrier, doesn’t support it you can always call and text from WiFi via an app. The most common ones are Skype, Google Hangout, Whats App, Facebook Messanger and Viber.
Finally, with US Mobile you get unlimited global WiFi for just $10/month. Check it out!