1)   3CX Phone System for Windows Free 5.1
3CX VOIP Phone System FREE edition is a SIP-based IP PBX developed for Windows. Easy to install & configure, it eliminates phone wiring & allows hot desking. Lowers call costs via VOIP providers & eliminates vendor lockin. Download FREE edition!
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 2)   AdminsParadise Voip PBX and FAX 1.0
VoIP Can offer a significant savings for a small, medium or large office. Free enterprise grade VoIP PBX and web based fax solution. Extensive "movie walkthroughs" to step you through the installation and administration of the software.
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