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

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

HowStuffWorks Computer gets you explanations, reviews, opinions and prices for the Internet, home networking, hardware, and software.

SevOne is the new leader in Network Performance Management, providing the fastest, most scalable, and comprehensive real-time monitoring, troubleshooting and performance reporting solution.

ManageEngine offers Enterprise IT Network Management, Network Monitoring, Application Performance Management, Server Management Tools, Help Desk Software, Desktop Management, Asset Management System, Configuration Management, Password Management, and...

Specialized in network monitoring and testing scenarios Paessler offers a range of highly efficient tools with a strong focus on usability and performance and with an excellent price-performance ratio. Our Windows based network monitoring software is...

Cisco (NASDAQ: CSCO) is the worldwide leader in networking that transforms how people connect, communicate and collaborate.

VoIP Spear is an online service that monitors your VoIP quality and alerts you when there

WildPackets is the leading provider of network, VoIP, and application performance monitoring, analysis, and troubleshooting solutions.

Real-time, web-based network management software. Download trials & free network monitoring tools to detect, diagnose, resolve network & bandwidth issues with network maps, alerts and dashboards. WMI, SNMP monitoring with NetFlow analysis.

WhatsUp Gold is an award-winning network monitoring software, managing over 100,000 networks worldwide. Download trials & free tools now!

Business VoIP from Vocalocity® is the most reliable no-contract cloud VoIP phone service for small businesses in the U.S. and Canada.