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Free Software Magazine: Asterisk--The Software Phone Company

Sep 04, 2006, 20:00 (1 Talkback[s])
(Other stories by John Goerzen)

"Asterisk is a phone system in software. It can replace large and expensive business phone systems, powering thousands of extensions, or it can help home users save money on long distance. Because it's implemented in software, it is extremely versatile, easy to customize, and easy to extend.

"You're probably familiar with the concept of a Private Branch Exchange (PBX) already, though you might not know it. Almost every medium or large business has one. A PBX is, basically, a simplified version of a telephone company's exchange. Most PBXs provide features such as direct touch-tone dialing of extensions, routing of calls onto the public telephone network, and voice mail services. If you're accustomed to dialing 9 to place an outside call, or dialing a simple 3- or 4-digit number to reach another extension, you're using a PBX..."

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