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

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Chapter 4. Cost Analysis

This chapter covers the following topics:

This chapter focuses on the cost structure of deploying the Session Initiation Protocol (SIP) trunks. This is also one of the major criteria to select the SIP trunk service provider. Different service providers offer different cost models. You should consider some common criteria during your cost analysis.

SIP is the protocol for creating, modifying, and terminating sessions (voice, IM, conference call, and so on) with one or more participants. It is widely used as the signaling protocol for Voice over IP (VoIP) calling ...

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