Archive for May 15th, 2010

Voice over IP

Understanding the Basic Networking Functions, Components, and Signaling Protocols in VoIP Networks Although voice over IP (VoIP) has existed for several years, it has only recently begun to take off as a viable alternative to traditional voice systems and public switched telephone networks (PSTN). Interest in VoIP has grown in part because the technology can help both [...]

28 June 2009 at 16:32 - Comments

Build A One Transistor FM Radio

If the radio is wired correctly, there are three possible things you can hear when you turn it on: 1) a radio station, 2) a rushing noise, 3) a squeal, and 4) nothing. If you got a radio station, you are in good shape. Use another FM radio to see where you are on the [...]

28 June 2009 at 16:29 - Comments