Whether a terrorist attack, fibre cut, security breach, natural disaster or traffic overload, today's networks must be designed to withstand adverse conditions and provide continuous service. This comprehensive, leading-edge book reveals the techniques and strategies to help you keep enterprise data and voice networks in service under critical circumstances. You learn numerous ways to minimize single points of failure through redundancy and backups, and discover how to select the right networking technologies to improve survivability and performance....
A major U.S. regional carrier needs to create a high-speed data network
using its existing voice infrastructure in more than 300 metropolitan and
rural markets. Without this service upgrade, the carrier stands to lose
significant high-value business and residential customers to new
providers of high-speed services in many of its key markets.
Design and deploy a DSLAM solution rapidly and efficiently while
maintaining the highest standards of quality with each deployment.
The BACnet protocol currently uses the connectionless User Datagram Protocol (UDP)
for both Annex H and BACnet/IP communications. However, it is possible that Trans-
mission Control Protocol (TCP) transport will be utilized for some service in the future,
and so threats specific to TCP have been included. Even if TCP/IP is never used as part
of the BACnet protocol, it still can be used to gain access to the building control system
web servers, get access through the corporate firewall, and be used for denial of service
attacks on the external network on which the BCS may depend.
The merging of voice and data on a single network opens powerful new possibilities in communications. Only a fundamental understanding of both technologies will ensure you are equipped to maximise their full potential.
Convergence Technologies for 3G Networks describes the evolution from cellular to a converged network that integrates traditional telecommunications and the technology of the Internet.
James F. Kurose and Keith W. Ross Preface Link to the Addison-Wesley WWW site for this book Link to overheads for this book Online Forum Discussion About This Book - with Voice! 1. Computer Networks and the Internet 1. What is the Internet? 2. What is a Protocol? 3. The Network Edge 4. The Network Core s Interactive Programs for Tracing Routes in the Internet s Java Applet: Message Switching and Packet Switching 5. Access Networks and Physical Media 6. Delay and Loss in Packet-Switched Networks 7. Protocol Layers and Their Service Models 8. Internet Backbones, NAPs and ISPs 9....
This chapter shows you how to configure Voice over IP (VoIP) on the Cisco 3600 series. For a
deion of the commands used to configure Voice over IP, refer to the “Voice-Related
Commands” chapter in the Voice, Video, and Home Applications Command Reference.
VoIP enables a Cisco 3600 series router to carry voice traffic (for example, telephone calls and faxes)
over an IP network.
Nermeen Ismail provided a cover-to-cover review of the book, lending considerable expertise in
video and voice over IP.
Jesse Herrera also provided a full review, verifying all parts of the text in minute detail.
The authors are particularly grateful to Stuart Taylor for providing a number of suggestions and
comments on the introduction and architecture chapters; to Tripti Agarwal for taking time to
review the H.
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....
Trong bài này, chúng tôi sẽ giới thiệu cho các bạn cách cài đặt và thiết lập một chức năng thư tín hợp nhất, cách cấu hình Outlook Voice Access và kiểm tra cấu hình bằng Microsoft Testphone Tool có trong Exchange Server 2007.
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.
This preface describes the purpose, scope, intended audience, and general organization of this Cisco IP
Videoconferencing Solution Reference Network Design Guide. It also provides information on how to
order documentation from Cisco Systems. This document provides guidelines, recommendations, and best practices to help you design an
IP videoconferencing solution for your enterprise using the Cisco Architecture for Voice, Video, and
Integrated Data (AVVID).
This document provides design considerations and guidelines for implementing Cisco IP Telephony
solutions based on the Cisco Architecture for Voice, Video, and Integrated Data (AVVID).
This document is primarily an update of the design guidelines and information presented in the Cisco IP
Telephony Solution Reference Network Design (SRND) for Cisco CallManager releases 3.1 and 3.2,
which is available online at
This document assumes that you are already familiar with the terms and concepts presented in previous
versions of the Cisco IP Telephony SRND.
AVVID (Architecture for Voice, Video, and Integrated Data), the latest development from Cisco Systems is redefining the way businesses communicate. AVVID allows businesses to transmit voice, data, and video over a single integrated architecture, whereas in the past three separate systems were required.
Administering Cisco AVVID Applications is a professional reference detailing the strategies, tactics, and methods for utilizing Cisco software to configure and maintain Cisco networks and hardware infrastructures.
Your organization wants to call from one location to another via your private leased line, which is passing only IP
traffic. Because of this, you decide that a VoIP solution is the best way to do go about providing communication
between the two offices.
As Network Administrator, you note that each site is using a Cisco 2610. You also find that there is room to put an
FXS port on each of them. To make calling easy for the users, create a simple dialing plan. For the phone attached to
Router A, dial 1001, and for the phone attached to Router B, dial 1002....
Voice chat, video chat khi điều khiển máy tính từ xa
Không chỉ cải thiện đáng kể về tốc độ làm việc, phiên bản mới 5.0 Beta của TeamViewer, trình điều khiển máy tính từ xa qua Internet, còn thêm một số tính năng mới đáng giá, nổi bật là voice chat và video chat.
Từ giờ mỗi khi dùng TeamViewer 5.
The demand for higher bandwidth by residential customers has led carriers to one
simple conclusion – optical fiber with its almost limitless bandwidth capability will
be a network necessity. The driver for such high consumer bandwidth usage is the
need for carriers to deliver video, along with voice and data services, to complete
the “triple play” package.
As traditional carriers experience declining revenue from voice services, they must
find ways to increase the revenue from data and video services.