by John Sung Kim, founder of Five9
Many have speculated on the future of VoIP. The reality is, there are actually five distinct and separate markets for voice over the net:
- Consumer Free VoIP
- Consumer Home VoIP
- Small Business VoIP
- Large Business VoIP
- Telco VoIP
This month we’ll cover the first category of consumer free. In 2004 I started... 
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