Backdoor Dialing - Free Calling to Millions of US Phones

michaelrobertson.com — Telephone companies such as Verizon, Sprint, T-Mobile, MetroPCS, and others have quietly been connecting their phone networks up to the Internet. Working with our telecommunication partners, Gizmo5 is launching an experimental service to place calls from the Internet directly to millions of these phones. Jan 23, 2008 View in Crawl 4