Technology is so advance that you can block your phone number on not only your home phone, but your cell phone as well. What you are basically doing is blocking your phone number from showing up on the receiving ends Caller ID. You have a choice of permanently blocking your number from showing on someone's Caller ID or you can block your phone number on a temporary basis. Which ever you choose is
. up to you and is based on why the number has to be blocked. People block their numbers for many reasons. If you want to block your number on a temporary basis basically all that you are required to do is dial star sixty seven on your phone and then dial the phone number that you are calling. If you want to permanently have your number block you will need to contact the customer service of your telephone service provider. They will imitate the block from their office and there is nothing that you will have to do on your end. The choice of blocking your number is all up to you.