Why doesn't S voice repeat commands any more?

[AC Question]

S voice doesn't repeat command any more..

Hi, I have galaxy s5 and use earphones a lot. So I use s voice for making calls. Its quite accurate. What boders me is that voice stopped repeating my command. Now when I say command "Call father" it is just calling him, and not repeating the command and if I dont watch on the screen I'm not sure if S voice dialed the right number. A week ago it repeated: "Calling father.Perhaps I switched something.