Cisco.IP.Telephony.Planning.Design.Implementation.Operation.and.Optimization [Electronic resources] نسخه متنی

Chapter 1. Cisco IP Telephony Solution Overview

This chapter provides a high-level overview of legacy networks and the Cisco Architecture for Voice, Video and Integrated Data (AVVID), including its components, underlying protocols, and technologies.

This chapter covers the following topics:

Legacy voice and data networks and next-generation multiservice networks

Signaling and transport protocols that are used to build Cisco IP telephony (IPT) networks

IPT components, applications, and terms used in Cisco IPT solutions

Components, applications, and terms used in Cisco IPT solutions

Cisco IPT deployment architectures and the criteria used to choose the deployment model

How various IPT components and protocols work together, including a look at various call-flow scenarios

The information that is presented in this chapter will help you to understand the operation of legacy voice networks and the evolution of IPT technology. You can use this while doing the planning, design, implementation, operation, and optimization (PDIOO) of Cisco IPT networks.