"Can Centrex survive or perhaps even thrive in the era of convergence?" Industry observer Jay Brandstadter thinks it can, but maybe not in the form you've known it: "For those considering IP telephony ...
PBX vs VoIP: How to Compare and Choose a Phone System Your email has been sent At first glance, PBX and VoIP seem like two very different types of phone systems. But modern technology, like IP PBX, ...
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