How to block unwanted phone calls?

How do I block, my friend from contacting my home phone, my mom doesn't know how to do it, and it's getting really annoying, he thinks it's a joke but it's not, and my mom is fing betching at me 24/7 for it, I have no idea how to block that number, it would be a great help if you could tell me how, to do it without buying anything, or costing any money, meaning it be free

Thanks
~Tony~

The best thing to do would be contact a local authority.. and let them know what it going on. Its considered harasment! They can look into it, and talk to your friend that is harassing your family!!

You might also try explaining to your mom that you are going to warn off your 'friend' to quit NOW, or your mom is going to go to the authorities. Then tell your 'friend' that your mom is about to bring in the police if he doesn't stop. Then if 'friend' doesn't stop, your mom MUST bring charges. --- Do NOT do the threat if you or your mom aren't willing to follow through with the consequences. p.s. it sounds like your friend is not being very friend-ly

well I think if you have Qwest, there is a way to block a number from calling you but I dont remember what it is...
sorry but I know there is a way..

*77 to block unknown incoming calls.

*57 to trace and save unwanted incoming calls. Your telephone company then will send report to the police. If this becomes very annoying, I advice you to file a police report asap.

y the hell do you call him a friend if he is doing this is the first place you idiot..