Why don't I get calls on my Samsung Galaxy gt-i8620 on the lock screen?

[AC Question]

why do not call on samsung galaxy gt-i8620 on lock screen

this phone in call coming in open lock screen but if you lock screen call is impossible why?

 

[the tall guy]

Re: why do not call on samsung galaxy gt-i8620 on lock screen

Hi, if the screen is locked a call is impossible?? is that the question, sorry I don't understand.