This attack is enabled by VoIP, which is also responsible for callerID spoofing which has led to the tormenting of millions of people daily with phone spam. The

This attack is enabled by VoIP, which is also responsible for callerID spoofing which has led to the tormenting of millions of people daily with phone spam. The gains from VoIP have absolutely not been worth the loss of trust in what was a reliable communication network. I continue to be unimpressed with "deregulation and free markets", in practice it usually means sharks feasting on confused consumers.