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Welcome to voip.about.com, your guide site to everything Voice Over IP, also called VoIP, IP Telephony or Internet Telephony. Learn how to make free or cheap local and international calls using your PC or phone. Stay updated on VoIP hows and whats, V...

View a Live Call Monitoring System Demo! Complimentary Call Monitoring System Resource Guides from VPI. Get Free Call Monitoring System White Papers. Read Proven Call Monitoring System Best Practices. Receive an Quote for an Affordable Call Monitorin...

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Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

SIP Tester, free download. SIP Tester 3.1: SIP tester is a free VoIP load testing tool to check SIP hardware or software.

VoIPmonitor is open source live network packet sniffer voip monitoring tool and call recorder which analyzes SIP and RTP protocol and predicts call quality

3CX VOIP PBX - provides an easy to use, plug and play SIP - IP PABX for Windows. With a software based IP PBX you will save on PBX maintenance and halve your phone bill. Download the FREE edition today and break free from your proprietary phone syste...