sony ericsson k800i

need help plz...there is some one who is buging me all the time on my mob

is there any option in k800i that if this person calls u he gets my mob busy or not reachable....plz i really need help😕

Call your mobile operator and ask them to block that particular number.

Or u can go 2 settings then calls then manage calls and accept calls and make a list 4 those u want 2 contact u