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Voice over IP Security by Patrick Park

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Chapter 1. Working with VoIP

This chapter covers VoIP strengths and vulnerabilities with the following topics:

Voice over Internet Protocol (VoIP) has been prevailing in the telecommunication world since its emergence in the late 90s as a new technology transporting multimedia over the IP network. It is very common today for people to make phone calls with IP phones or client software (for example, Skype, iChat, and Google Talk) on their computer. Many telecommunications companies and other organizations have been moving their telephony infrastructure to their data networks, because it provides a cheaper and clearer alternative to traditional public ...

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