Once you set up Wi-Fi Calling, you will have to follow the same process as traditional voice calls.
Your phone will automatically toggle between Wi-Fi and cellular network to provide you a seamless call with the best experience.
For seamless performance it is recommended you should keep both VoLTE and Wi-Fi Calling switched on.
Also, you can make wifi calling while roaming anywhere in India.
COST TO MAKE WIFI CALLING:
This feature is available at no additional charge and is included as part of your existing voice plan.
WIFI calls to international numbers are billed as international calls(also known as ISD calls).
WiFi calling is not free as you may mistake it to be. It is underlined that ‘A Wi-Fi call will be treated exactly the same as a regular call.’ So, calls and texts will reflect in your Airtel/Jio master balance.
WiFi Calling doesn’t support international calls or roaming calls from a foreign country to India. However, the operators are not at fault here as this is mandated by Law Enforcement Agencies.
Calls made using either Jio/Airtel’s WiFi Calling Services to any other network or number not having Wi-Fi Calling Services would be possible and will be charged for at the existing prices/ plans as applicable to other networks for the duration of the call.
It doesn’t work if the Airplane mode is turned on
Also, right now there is no facility to record wifi calling(Samsung specific point)