Opinions expressed by Entrepreneur contributors are their own. Maybe, as vendors claim, VoIP is just another internet application like web browsing or search. But who wants to drag a computer around ...

Understanding the Context

Mark Bruk, a frequent business traveler, always packs a Plantronic headset with an ear bud and microphone so he can plug into any computer and make phone calls on the cheap. Once he finds an Internet ... VoIP network performance testing can mean the difference between a VoIP system working at a high level QoS and a weak system that runs so poorly customers could take their business elsewhere. This ...

Key Insights

Voice over IP (VoIP) security is a challenge for IT staff because IP telephony (IPT) brings with it not only the security problems of data networks but also new threats specific to VoIP. In this ... Voice over Internet protocol and public branch exchange systems -- VoIP and PBX, respectively -- are two ways of achieving the same end goal: to make and receive phone calls. Traditional PBX systems ... A VoIP phone system can save an organization a lot of money, but the up-front costs for new equipment can be prohibitive.

Final Thoughts

Instead, consider used phones from a reputable provider. As I sit at my desk ...