WIFI CALLING..

[ramdasphotography]

Airtel rolls out wifi calling for their prepaid and postpaid customers..

[iVirus]

Samsung supporting the Wifi calling from many Years.

It was not live by the operator so it was disable.

To enable Wifi calling  you need to insert WIFI calling supported SIM, when you insert the correct sim, wifi calling option will automatically enable.

Happy Calling  :)