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SIP Trunking by ATM Zakaria Swapan, Darryl Sladden, Christina Hattingh

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Chapter 2. Trends in IP Telephony

This chapter covers the following topics:

Internet Protocol (IP) telephony has become a widespread and standard means of communication. Prior to 2000, IP telephony was the choice of only a select few. Now, in 2010, more and more people and businesses are adopting ...

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