IP Telephony Components and Protocols
IP Telephony solutions are applicable in all environments in which legacy telephony installations can be found, including home users, SOHOs, SMBs, large enterprises, and carriers. Even though the deployment environment and customer requirements for IP Telephony solutions differ, the design approach remains the same. Topology, performance, and budget considerations drive the choices of equipment and protocols following the identification of the stakeholder requirements. The key solution components, although they differ in scalability and capability, share the same characteristics and principles of operation. Viewing voice as an application implies that a viable IP infrastructure must be in place to support ...
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