Staci,
You need to go get the Mr.Number app for your cell phone. Then when any number comes in to your cell phone, if it is from any jerk that you don't want to hear from for ANY reason (ex-boy/girl friends, ex-spouses, telemarketing SCUM), all you need to do is open Mr.Number, find the number in the list of the most recent calls you received, mark it as blocked, and you are DONE!!!!!!!!!!