Support Protocols
Solutions in this chapter:
Introduction
Protocols such as MGCP and SIP, or protocol umbrella groups like H.323, are usually the first things that come to mind when discussing VoIP technology. Although they are all great protocols in their own right, they depend on, and interoperate heavily with, support protocols. Many of the support protocols that are used by VoIP architectures enable services and features required for proper network operation.
This chapter will cover several of the support protocols typically found in VoIP environments and some of the security implications that they bring with them. This chapter is not intended to be an all-inclusive tutorial on these protocols. ...
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