How to disable " Quiet Mode"

[Zhyang]

Helloo , can someone help me pls, I was on siege and I wanted to report someone, but somehow I pressed a wrong combination and  in chat
there were  a yellow text : Quiet Mode activated or something 
 
Now I don't know how to disable this and I just see kills no chat
Can someone tell me  how i disable this ? Would be very kind 
 

[Kincore]

Deutsche Tastaur :

Strg + Shift + M  = Chatt aus.
Strg + Shift + U  = Chatt wieder an.

[Zhyang]

thank you