i actually use a program for this...its called call-firewall...i posted a thread about it in the software section here on geeks a few months back...do a search for it u should find it on here...that particular version is alittle old its been updated about 3 times since then...but there is a link in the thread for the website and u can download the newest one from there....i use them program and it works well for blocking calls...i only have one number set to blocked sms so im not sure if that works aswell as the call blocker part of the program...but what i can say is i havent gotten anymore text from thae number i have set lol...hope this helps