Elastix Unified Communications Server Cookbook

Elastix Unified Communications Server Cookbook PDF Author: Gerardo Barajas Puente
Publisher: Packt Publishing Ltd
ISBN: 1849519358
Category : Computers
Languages : en
Pages : 348

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Book Description
This book is aimed at those who want to learn how to set up an Elastix Unified Communications Server without losing ground on Unified Communications and Voice over IP.

Elastix Unified Communications Server Cookbook

Elastix Unified Communications Server Cookbook PDF Author: Gerardo Barajas Puente
Publisher: Packt Publishing Ltd
ISBN: 1849519358
Category : Computers
Languages : en
Pages : 348

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Book Description
This book is aimed at those who want to learn how to set up an Elastix Unified Communications Server without losing ground on Unified Communications and Voice over IP.

Asterisk Cookbook

Asterisk Cookbook PDF Author: Leif Madsen
Publisher: "O'Reilly Media, Inc."
ISBN: 9781449307202
Category : Computers
Languages : en
Pages : 66

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Book Description
Asterisk has a wealth of features to help you customize your PBX to fill very specific business needs. This short cookbook offers recipes for tackling dialplan fundamentals, making and controlling calls, and monitoring channels in your PBX environment. Each recipe includes a simple code solution you can put to work immediately, along with a detailed discussion that offers insight into why and how the recipe works. This book focuses on Asterisk 1.8, although many of the conventions and information presented are version-agnostic. These recipes include solutions to help you: Authenticate callers before moving on in your dialplan Redirect calls received by your auto-attendant Create an automatic call-back service Initiate hot-desking to login to and accept calls at any office device Monitor and interrupt live calls to train new employees at a call center Record calls from your Asterisk dialplan

Asterisk: The Definitive Guide

Asterisk: The Definitive Guide PDF Author: Russell Bryant
Publisher: "O'Reilly Media, Inc."
ISBN: 1449332455
Category : Computers
Languages : en
Pages : 1200

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Book Description
Design a complete Voice over IP (VoIP) or traditional PBX system with Asterisk, even if you have only basic telecommunications knowledge. This bestselling guide makes it easy, with a detailed roadmap that shows you how to install and configure this open source software, whether you’re upgrading your existing phone system or starting from scratch. Ideal for Linux administrators, developers, and power users, this updated edition shows you how to write a basic dialplan step-by-step, and brings you up to speed on the features in Asterisk 11, the latest long-term support release from Digium. You’ll quickly gain working knowledge to build a simple yet inclusive system. Integrate Asterisk with analog, VoIP, and digital telephony systems Build an interactive dialplan, using best practices for more advanced features Delve into voicemail options, such as storing messages in a database Connect to external services including Google Talk, XMPP, and calendars Incorporate Asterisk features and functions into a relational database to facilitate information sharing Learn how to use Asterisk’s security, call routing, and faxing features Monitor and control your system with the Asterisk Manager Interface (AMI) Plan for expansion by learning tools for building distributed systems

The Official (ISC)2 Guide to the CISSP CBK Reference

The Official (ISC)2 Guide to the CISSP CBK Reference PDF Author: John Warsinske
Publisher: John Wiley & Sons
ISBN: 1119423317
Category : Computers
Languages : en
Pages : 1030

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Book Description
The only official, comprehensive reference guide to the CISSP All new for 2019 and beyond, this is the authoritative common body of knowledge (CBK) from (ISC)2 for information security professionals charged with designing, engineering, implementing, and managing the overall information security program to protect organizations from increasingly sophisticated attacks. Vendor neutral and backed by (ISC)2, the CISSP credential meets the stringent requirements of ISO/IEC Standard 17024. This CBK covers the new eight domains of CISSP with the necessary depth to apply them to the daily practice of information security. Written by a team of subject matter experts, this comprehensive reference covers all of the more than 300 CISSP objectives and sub-objectives in a structured format with: Common and good practices for each objective Common vocabulary and definitions References to widely accepted computing standards Highlights of successful approaches through case studies Whether you've earned your CISSP credential or are looking for a valuable resource to help advance your security career, this comprehensive guide offers everything you need to apply the knowledge of the most recognized body of influence in information security.

Modulation and Coding Techniques in Wireless Communications

Modulation and Coding Techniques in Wireless Communications PDF Author: Evgenii Krouk
Publisher: John Wiley & Sons
ISBN: 0470745053
Category : Technology & Engineering
Languages : en
Pages : 691

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Book Description
The high level of technical detail included in standards specifications can make it difficult to find the correlation between the standard specifications and the theoretical results. This book aims to cover both of these elements to give accessible information and support to readers. It explains the current and future trends on communication theory and shows how these developments are implemented in contemporary wireless communication standards. Examining modulation, coding and multiple access techniques, the book is divided into two major sections to cover these functions. The two-stage approach first treats the basics of modulation and coding theory before highlighting how these concepts are defined and implemented in modern wireless communication systems. Part 1 is devoted to the presentation of main L1 procedures and methods including modulation, coding, channel equalization and multiple access techniques. In Part 2, the uses of these procedures and methods in the wide range of wireless communication standards including WLAN, WiMax, WCDMA, HSPA, LTE and cdma2000 are considered. An essential study of the implementation of modulation and coding techniques in modern standards of wireless communication Bridges the gap between the modulation coding theory and the wireless communications standards material Divided into two parts to systematically tackle the topic - the first part develops techniques which are then applied and tailored to real world systems in the second part Covers special aspects of coding theory and how these can be effectively applied to improve the performance of wireless communications systems

Open Source Unified Communication Server - Elastix

Open Source Unified Communication Server - Elastix PDF Author: Arshdeep Singh Veer
Publisher: SoftCover
ISBN: 8195107907
Category : Computers
Languages : en
Pages : 1

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Book Description
Open Source Unified Communication Server - Elastix

Asterisk

Asterisk PDF Author: Jim Van Meggelen
Publisher: "O'Reilly Media, Inc."
ISBN: 0596510489
Category : Computers
Languages : en
Pages : 602

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Book Description
Provides information on Asterisk, an open source telephony application.

Excel 2007 VBA Programming For Dummies

Excel 2007 VBA Programming For Dummies PDF Author: John Walkenbach
Publisher: John Wiley & Sons
ISBN: 1118050800
Category : Computers
Languages : en
Pages : 404

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Book Description
Step-by-step instructions for creating VBA macros Harness the power of VBA and create custom Excel applications Make Excel 2007 work for you! This clear, nonintimidating guide shows you how to use VBA to create Excel apps that look and work the way you want. Packed with plenty of sample programs, it explains how to work with range objects, control program flow, develop custom dialog boxes, create custom toolbars and menus, and much more. Discover how to Grasp essential programming concepts Use the Visual Basic Editor Navigate the new Excel user interface Communicate with your users Deal with errors and bugs

Asterisk: The Definitive Guide

Asterisk: The Definitive Guide PDF Author: Jim Van Meggelen
Publisher: O'Reilly Media
ISBN: 1492031577
Category : Technology & Engineering
Languages : en
Pages : 415

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Book Description
Design a complete Voice over IP (VoIP) or traditional PBX system with Asterisk, even if you have only basic telecommunications knowledge. This bestselling guide makes it easy with a detailed roadmap that shows you how to install and configure this open source software, whether you’re upgrading your existing phone system or starting from scratch. Ideal for Linux administrators, developers, and power users, this updated fifth edition shows you how to write a basic dialplan step-by-step and brings you up to speed on the features in Asterisk 16, the latest long-term support release from Digium. You’ll quickly gain working knowledge to build a simple yet inclusive system. Integrate Asterisk with analog, VoIP, and digital telephony systems Build an interactive dialplan using best practices for more advanced features Delve into voicemail options such as storing messages in a database Connect to external services including Google Hangouts, XMPP, and calendars Incorporate Asterisk features and functions into a relational database to facilitate information sharing Learn how to use Asterisk’s security, call routing, and faxing features Monitor and control your system with the Asterisk Manager Interface (AMI)

Hacking Exposed Wireless

Hacking Exposed Wireless PDF Author: Johnny Cache
Publisher: McGraw Hill Professional
ISBN: 0071509690
Category : Computers
Languages : en
Pages : 418

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Book Description
Secure Your Wireless Networks the Hacking Exposed Way Defend against the latest pervasive and devastating wireless attacks using the tactical security information contained in this comprehensive volume. Hacking Exposed Wireless reveals how hackers zero in on susceptible networks and peripherals, gain access, and execute debilitating attacks. Find out how to plug security holes in Wi-Fi/802.11 and Bluetooth systems and devices. You'll also learn how to launch wireless exploits from Metasploit, employ bulletproof authentication and encryption, and sidestep insecure wireless hotspots. The book includes vital details on new, previously unpublished attacks alongside real-world countermeasures. Understand the concepts behind RF electronics, Wi-Fi/802.11, and Bluetooth Find out how hackers use NetStumbler, WiSPY, Kismet, KisMAC, and AiroPeek to target vulnerable wireless networks Defend against WEP key brute-force, aircrack, and traffic injection hacks Crack WEP at new speeds using Field Programmable Gate Arrays or your spare PS3 CPU cycles Prevent rogue AP and certificate authentication attacks Perform packet injection from Linux Launch DoS attacks using device driver-independent tools Exploit wireless device drivers using the Metasploit 3.0 Framework Identify and avoid malicious hotspots Deploy WPA/802.11i authentication and encryption using PEAP, FreeRADIUS, and WPA pre-shared keys