Everyone hates random telemarketing robocalls. Many of these calls originate overseas and are sent by those with no regard for rules designed to avoid such calls, like the Do Not Call Registry. New technologies make it easier and cheaper to blast out these calls and Voice over Internet Protocol (VoIP) services make it easy to disguise the true origin of the calls. Unscrupulous telemarketers can insert a false phone number so that the number that shows up on caller ID looks like a local number, or, worse, the number of an agency like the IRS. This is called spoofing. Spoofing can lead to more than annoyance, it can enable scamming and fraud.