Is Wi-Fi calling option free or is charged as for making phone calls?

[tulak]

Hi to all.
Can you please tell me.
Is Wi-Fi calling option free or is charged as for making phone calls?
I have Lumia 521 (sorry I have post there) I can make and receive Wi-Fi calls successfully but I am charged for it.
Do I missing something?
thanks

 

[emagius]

Wi-Fi calling is a T-Mobile feature. It routes calls over WiFi instead of cellular, but you are still charged the same per-minute rates as you normally would be. It's primarily useful if you're in an area with bad cellular coverage but a usable WiFi network.

 

[xandros9]

Nope, its not free.

 

[speedtouch]

Nope, its not free.

Not quite. On pre-paid WiFi Calling does use your minutes. I'm not sure about post-paid.