Speakerphone icon always on - Samsung S6. How can I turn it off?

[AC Question]

Speakerphone icon always on - Samsung S6

After a visit to the service involving a battery replacement and software rewrite my Samsung S6 is now always showing a Speakerphone icon at the top notification bar. When I answer phone calls the speaker is off but no matter what I try it is still shown. S-voice auto start speakerphone is off.

What could trigger this icon ?

 

[AlphaTango414]

Re: Speakerphone icon always on - Samsung S6

It's not a speaker phone icon. It's got to do with VoLTE.

 

[lucianus_luciferus]

Re: Speakerphone icon always on - Samsung S6

its probably like wifi calling