Download Optimizing Converged Cisco Networks. Student Guide PDF

As converged networks and mobility are used an increasing number of in day-by-day company, those applied sciences must be optimized to aid enterprise requirements.You will leam concerning the new Cisco clever info community (IIN) version and the Cisco Service-Oriented community structure (SONA) as architectural frameworks for converged networks.You will assessment VoIP community necessities and concentrate on the VoIP-related demanding situations in such networks. to make sure caliber in a converged community, you are going to care for ideas and implementation tools for caliber of carrier (QoS). eventually, you are going to leam concerning the evolution of instant protection criteria and the weather of the Cisco instant LAN (WLAN) community. you are going to paintings on case stories and a number of other lab actions according to Cisco built-in prone Routers (ISRs) and the converged community subject matters.

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Optimizing Converged Cisco Networks. Student Guide

As converged networks and mobility are used a growing number of in day-by-day enterprise, those applied sciences have to be optimized to help company specifications. you'll leam in regards to the new Cisco clever details community (IIN) version and the Cisco Service-Oriented community structure (SONA) as architectural frameworks for converged networks.

VoIP Service Quality: Measuring and Evaluating Packet-Switched Voice

Regardless of the good points that make Voice over IP so appealing from the point of view of expense and adaptability of phone providers, companies will basically undertake it as soon as they have decided no matter if, and below what situations, the standard of VoIP can be passable to clients. In those pages you will find every thing you want to understand to reply to these questions, either now and sooner or later as different packet-switched voice prone emerge.

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Depending on the interface type (T1 or E1) and the signaling method (CAS versus CCS), a maximum of 23, 24, or 30 voice channels will be available on these trunks. The PSTN and the PBX also serve ISDN phones through BRI connections. The table shows the number of voice channels, the signaling bandwidth, and the total bandwidth, considering the framing overhead, for all available interface and signaling options. 0 © 2006 Cisco Systems, Inc. , for the sole use by Cisco employees for personal study.

All rights reserved. 0—2-12 Quantization involves dividing the range of amplitude values that are present in an analog signal sample into a set of 256 discrete steps. The PAM values are rounded up or down to the step that is closest to the original analog signal. The difference between the original analog signal and the quantization level assigned is called quantization error or quantization noise, which is the source of distortion in digital transmission systems. The figure depicts quantization.

Centralized call control allows an external device (call agent) to handle signaling and call processing, leaving the gateway to translate audio signals into voice packets after call setup. After the call is set up, the voice path runs directly between the two gateways and does not involve the call agent. The difference between distributed and centralized call control applies only to signaling, never to the media exchange, which always goes on directly between the two gateways. © 2006 Cisco Systems, Inc.

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