ONLamp: The PBX Is Dead; Long Live VoIP

“The private branch exchange (PBX) has been the reference
standard for business telephone systems for decades, but of late,
its age has been showing. While the computer industry has changed
vastly, telephone systems until relatively recently have changed
only superficially. They are expensive, proprietary, and often so
arcane that only factory-authorized dealers have the remotest clue
how to manage them. This, coupled with the emergence of open source
Voice over IP (VoIP) technology, leaves PBX on the verge of
obsolescence. In this article I’ll look at Asterisk, a Linux-based
open source softswitch, and why it heralds the end of PBX…”

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