Phones are still central to today's businesses. And in this day and age, you're faced with three phone solutions: landlines, cellphones and Voice over Internet Protocol (VoIP). More and more, though, business owners are turning to VoIP solutions to keep pace with new technologies and improved business solutions. But, what is VoIP? How does VoIP work? And why is it a future-proof phone solution? Our free e-Book explores these questions and more!