If you've never heard of VoIP, get ready to change the way you think about long-distance phone calls. VoIP, or Voice over Internet Protocol, is a method for taking analog audio signals, like the kind you hear when you talk on the phone, and turning them into digital data that can be transmitted over the Internet.
How is this useful? VoIP can turn a standard Internet connection into a way to place free phone calls. The practical upshot of this is that by using some of the free VoIP software that is available to make Internet phone calls, you are bypassing the phone company (and its charges) entirely.
VoIP is a revolutionary technology that has the potential to completely rework the world's phone systems.
VoIP providers have already been around for a little while and are growing steadily. Above all else, VoIP is basically a clever "reinvention of the wheel." In this article, we'll explore the principles behind VoIP, its applications and the potential of this emerging technology, which will more than likely one day replace the traditional phone system entirely.
Not long ago outsourcing company Invent-Soft has successfully finished to develop VoIP solution for Unitone Communication System. Our programmers adopted and created SIP stack, RTP and SIP proxy.
Invent-Soft offers voice and data communications solutions for customers of all sizes, whether you are a large enterprise, small to medium business, or have residential home-based business needs. Invent-Soft 's diverse product line includes network communications solutions based on Voice over Internet Protocol (VoIP) technology. Scalable deployment and migration opportunities enable our customers to grow and adapt their communications portfolio, as their business needs change. Additionally, Invent-Soft's belief in open, non-proprietary standards, such as Session Initiation Protocol (SIP) and ITU voice standards, and more, helps protect your communications investments as technology changes.
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About The Author

Elena Kostogladova
Marketing Manager
eak@invent-soft.com
Invent-Soft
Offshore Software and Web Development Outsourcing
http://www.invent-soft.com