This preface describes the purpose, intended audience, organization, and conventions
for the Cisco IP Telephony Network Design Guide. This document serves as an implementation guide for Cisco AVVID (Architecture
for Voice, Video and Integrated Data) networks based on Cisco CallManager
Release 3.0(5). With such a high level of industry interest regarding IP telephony,
customers are aggressively pursuing Cisco solutions for both large and small
networks. Solutions based on Cisco CallManager Release 3.0(5) allow Cisco to
deliver large-scale IP telephony systems with many capabilities....
A comprehensive introduction to the most popular class of neural network, the multilayer perceptron, showing how it can be used for system identification and control. The book provides readers with a sufficient theoretical background to understand the characteristics of different methods, and to be aware of the pit-falls so as to make the correct decisions in all situations. This is a very application-oriented text that gives detailed and pragmatic recommendations to guide users through the plethora of methods suggested in the literature.
Wi-Fi can further enhance your organization's productivity and savings by increasing portability and eliminating charges for PBX maintenance and for wire-line and cellular phone service. However, concerns about the QoS of Wi-Fi and VoIP prevent many organizations from realizing the full savings and productivity improvements that Wi-Fi can deliver. This guide to deploying Wi-Fi telephony helps you overcome these concerns by showing in detail how to engineer each component of Wi-Fi for reliable, high- quality voice transmission.
This course provides students with the information and skills needed to create a
Microsoft® Windows® 2000 networking services infrastructure design that
supports the required network applications. Each module provides a solution
based on the needs of an organization. Some Windows 2000 network solutions
require a single technology, such as DHCP, to provide Internet Protocol (IP)
address configuration support.
When the concept of a network without wires was first suggested more than two
decades ago, it sparked the imagination of scientists, product vendors, and users
around the globe eager for the convenience and flexibility of a free roaming connection.
Unfortunately, as the variety of wireless solutions began to emerge, anticipation
turned to disappointment.The first wave of solutions proved inadequate
for the networking, portability, and security needs of a changing IT environment.
Orion Network Performance Monitor (Orion NPM) delivers comprehensive fault and network performance management that scales with rapid network growth and expands with your network monitoring needs, allowing you to collect and view availability and realtime and historical statistics directly from your web browser. While monitoring, collecting, and analyzing data from routers, switches, firewalls, servers, and any other SNMP-enabled devices, Orion NPM successfully offers you a simple-to-use, scalable network monitoring solution for IT professionals juggling any size network....
• • What is an In-Building Solution & Why is it required ? It is a process, where in we radiate adequate Mobile signals of one particular Network operator in that entire building. In places like basement floors, higher floors of some high rise Buildings, Airports, Corporate offices, Hotels & Shopping malls we tend to get signals from different cell sites around the building, so subscriber mobile ping-pong from one cell site to another resulting in high CALL-DROPS & High BER ( Rx Quality ) ...
"Network and system security" provides focused coverage of network and system security technologies. It explores practical solutions to a wide range of network and systems security issues. Chapters are authored by leading experts in the field and address the immediate and long-term challenges in the authors’ respective areas of expertise. Coverage includes building a secure organization, cryptography, system intrusion, UNIX and Linux security, Internet security, intranet security, LAN security; wireless network security, cellular network security, RFID security, and more.
OpenVPN is a powerful, open source SSL VPN application. It can secure site-to-site connections, WiFi and enterprise-scale remote connections. While being a full-featured VPN solution, OpenVPN is easy to use and does not suffer from the complexity that characterizes other IPSec VPN implementations. It uses the secure and stable TLS/SSL mechanisms for authentication and encryption. This book is an easy introduction to this popular VPN application.
This Solution Reference Network Design (SRND) provides a description of the design issues related to
optimizing server and application environments. Server farms are built to provide a highly available,
scalable infrastructure that on which applications ru . As enterprises grow, so do their application needs
which implies that more and more expenditures are allotted for additional application-specific softwar
and server requirements. This increase in bottom line expenses heightens the sensitivity to overall retur
This document provides design considerations and guidelines for implementing Cisco Quality of Service
within an enterprise environment.
This document is the second major update to the design guidelines and information presented in the
Cisco AVVID Network Infrastructure Enterprise Quality of Service Design Solutions Reference Network
Design (August, 2002).
This document assumes that you are already familiar with Quality of Service terms and concepts. If you
want to review any of those terms and concepts, refer to Cisco Quality of Service documentation at:...
Establishing a network performance baseline requires collecting key performance data from the ports and devices that are essential to network operation.1 Gather symptoms - Troubleshooting begins with the process of gathering and documenting symptoms from the network, end systems, and users.
Stage 2 Isolate the problem - The problem is not truly isolated until a single problem, or a set of related problems, is identified.
Home computers that are connected to the Internet are
under attack and need to be secured. That process is
relatively well understood, even though we do not have
perfect solutions today and probably never will.
Meanwhile, however, the home computing environment
is evolving into a home network of multiple devices,
which will also need to be secured. We have little
experience with these new home networks and much
research needs to be done in this area. This paper gives
a view of the requirements and some of the techniques
available for securing home networks....
This document provides system-level best practices and design guidance for the Cisco Unified Contact
Center Express (Unified CCX), Release 6.0. With proper planning, design, and implementation, Unified
CCX provides a reliable and flexible voice processing and contact center solution for the enterprise. This design guide is intended for the system architects, designers, engineers, and Cisco channel partners who want to apply best design practices for Unified CCX.
This Solution Reference Network Design (SRND) publication is intended to provide a set of guidelines
for designing, implementing, and deploying Voice and Video Enabled IPSec VPN (V3
This SRND defines the comprehensive functional components required to build a Site-to-Site Enterprise
Virtual Private Network (VPN) solution that can transport IP telephony and video.
With over 1,500,000 copies of our MCSE, MCSD, CompTIA, and Cisco
study guides in print, we have come to know many of you personally. By
listening, we've learned what you like and dislike about typical computer
books. The most requested item has been for a web-based service that
keeps you current on the topic of the book and related technologies. In
response, we have created firstname.lastname@example.org, a service that
includes the following features:
What is telecommunications?
This word is derived from the Greek word, "tele", which means, "far off"; and the Latin word, "communicate", which means, "to share". Hence Telecommunication is distance communication.
The true nature of telecommunications is the passing of information to one or more others in any form that may be used.