Voice over Internet Protocol: The Revolution in America's Telecommunications Infrastructure

摘要

Imagine a world in which, during a phone call with your mother, she instantly messages you her meatloaf recipe, which appears on your computer screen while the phone call takes place through your computer system. Alternatively, while at a party, you settle an argument about an all-time baseball record by calling a friend and having him download all the relevant statistics to everyone's cell phone containing a PDA, with the cellular phone call being transmitted via Internet. Imagine that with a single click you could clean the spam from your voicemail system, your text messenger pager, and your email inbox because they are all operated from the same user interface, namely, Voice over Internet Protocol (VoIP).