Nortel the largest manufacturer of conventional business telephone systems, lagged Open Source by 8%, having sold 2.63 million lines," a study by Easter Management of PBX market share concluded in January of this year.

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A hacker broke into a Homeland Security Department telephone system over the weekend and racked up about $12,000 in calls to the Middle East and Asia.

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Want to build a phone company for $100? Give Mark Spencer a ring. In a research park outside the low-key bustle of downtown Huntsville, Ala. Mark Spencer finishes his barbecue and resumes wreaking havoc on the multibillion-dollar phone equipment business.

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A technology website is holding a contest for "VoIP Deployments Gone Bad". The author of this blog post discusses what makes a VoIP deployment go bad and how to avoid the most common problems.

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Comparisons of legacy PBX telephone systems and newer VoIP system digital line needs.

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How T1 lines support both enterprise VoIP systems and data networks vs traditional circuit switched PBX.

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How to incrementally expand network bandwidth as you need it.

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What all those nines really mean in terms of system availability and how you get more of them.

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Want to build a phone company for $100? Give Mark Spencer a ring.

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