S6 edge+ "new telephone receiver icon appeared".

[AC Question]

Hello everybody. i have the following problem. from yesterday when I did an update to my phone, has appeared a new icon like a telephone receiver that calls.it is near the signal icon. Does anyone know what does it mean?

Android version 5.1.1.
I can send a print screen with the status.

 

[anon(632115)]

Wifi calling?

 

[dominic12m]

I upload a printscreen with the icon.

Thx

 

[dominic12m]

i put a printscreen.

 

[anon(632115)]

Yes, that is wifi calling.