A guide to VoIP, the technology that lets you make voice calls over the internet

VoIP (Voice over Internet Protocol) is a system for transmitting voice calls over the internet, rather than a phone line.
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USDA rolls out voice-over-IP radio

The Agriculture Department is rolling out a digital radio system that will connect 225 Washington, D.C.-area agency employees. The digital version replaces a standard two-way radio system. The ...