CompTIA Convergence+ Certification Study Guide (Certification Study Guides) Review

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(More customer reviews)Since I passed the certification maybe I should give it 5 *'s. But I was concerned when 3 out 21 of the questions on the sample test from CompTIA wasn't covered hardly at all. 1.Nothing about the pinouts of the POE 802.3af specification. 2.Didn't cover 802.3ab specification on cat5 cable. 3. Didn't cover technologies to address NAT issues with voice ie.: Session Border Controller, Universal Plug and Play, and Simple Traversal of UDP through NAT (STUN). Seems as though there was a question on STUN on the test.
There was way too much material on wireless, I guess this is Tom's strong suit. Although I liked the security sections, I don't recall too many questions on security on the test. Unfortunately there are no other books on the market to compare this to, so I am giving it 4 *'s.

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The Best Fully Integrated Study System Available for Exam CT0-101

With hundreds of practice questions and hands-on exercises, CompTIA Convergence+ Certification Study Guide covers what you need to know--and shows you how to prepare--for this challenging exam.

100% complete coverage of all official objectives for the CompTIA Convergence+ exam
Exam Readiness Checklist at the front of the book--you're ready for the exam when all objectives on the list are checked off
Two-Minute Drills for quick review at the end of every chapter
Simulated exam questions match the format, tone, topics, and difficulty of the real exam

Covers all the exam topics, including: Networking Infrastructure and Design; Network Protocols; Infrastructure Hardware; Client Devices; Telephony Fundamentals; Telephony Hardware; Multimedia and Video; Quality of Service; Converged Network Management; Troubleshooting Converged Networks; Security Vulnerabilities and Solutions

CD-ROM includes:

Complete MasterExam practice testing engine, featuring: One full practice exam; Detailed answers with explanations; Score Report performance assessment tool
Electronic book for studying on the go
Bonus downloadable MasterExam practice test (with free online registration)

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Voice over IP Security Review

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(More customer reviews)I have been carrying this book around with me for a couple weeks now and had a couple long plane flights as well. This is a difficult book to review. The author clearly knows his stuff and the threat treatment is great. However, the material is all over the map. The subtitle talks about good security practices and the book is short on that to be candid. Bottom line, if you are considering a VoIP deployment or wondering how secure/robust your existing deployment is, this is a must read.
My favorite "I never thought of that" scenario in the book was a simple power outage. What if you have twenty thousand IP phones and the power drops . . . then when it is restored all 20k phones start banging the server causing an outage.

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Voice over IP SecuritySecurity best practices derived from deep analysis of the latest VoIP network threatsPatrick ParkVoIP security issues are becoming increasingly serious because voice networks and services cannot be protected from recent intelligent attacks and fraud by traditional systems such as firewalls and NAT alone. After analyzing threats and recent patterns of attacks and fraud, consideration needs to be given to the redesign of secure VoIP architectures with advanced protocols and intelligent products, such as Session Border Controller (SBC). Another type of security issue is how to implement lawful interception within complicated service architectures according to government requirements.Voice over IP Security focuses on the analysis of current and future threats, the evaluation of security products, the methodologies of protection, and best practices for architecture design and service deployment. This book not only covers technology concepts and issues, but also provides detailed design solutions featuring current products and protocols so that you can deploy a secure VoIP service in the real world with confidence.Voice over IP Security gives you everything you need to understand the latest security threats and design solutions to protect your VoIP network from fraud and security incidents.Patrick Park has been working on product design, network architecture design, testing, and consulting for more than 10 years. Currently Patrick works for Cisco® as a VoIP test engineer focusing on security and interoperability testing of rich media collaboration gateways. Before Patrick joined Cisco, he worked for Covad Communications as a VoIP security engineer focusing on the design and deployment of secure network architectures and lawful interception (CALEA). Patrick graduated from the Pusan National University in South Korea, where he majored in computer engineering.Understand the current and emerging threats to VoIP networksLearn about the security profiles of VoIP protocols, including SIP, H.323, and MGCPEvaluate well-known cryptographic algorithms such as DES, 3DES, AES, RAS, digital signature (DSA), and hash function (MD5, SHA, HMAC)Analyze and simulate threats with negative testing toolsSecure VoIP services with SIP and other supplementary protocolsEliminate security issues on the VoIP network border by deploying an SBCConfigure enterprise devices, including firewalls, Cisco Unified Communications Manager, Cisco Unified Communications Manager Express, IP phones, and multilayer switches to secure VoIP network trafficImplement lawful interception into VoIP service environmentsThis IP communications book is part of the Cisco Press® Networking Technology Series. IP communications titles from Cisco Press help networking professionals understand voice and IP telephony technologies, plan and design converged networks, and implement network solutions for increased productivity.Category: Networking—IP CommunicationCovers: VoIP Security

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Internet Multimedia Communications Using SIP: A Modern Approach Including Java® Practice (The Morgan Kaufmann Series in Networking) Review

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(More customer reviews)FYI
This book helped me passed my Convergence+ and Security+ exam.
On with the quick review:
This is a must-have book for network engineers dedicated to improving their craft in IP Multimedia Communication, specifically working on SIP-based Softphones. This book has taught a non-programmer like me to deconstruct and analyze the internals of a Softphone, i.e the most famous Counterpath X-Ten Lite Softphone. Being a security guy, the chapter for Securing Multimedia Communications is an excellent introduction as well on how to implement SIP-VoIP Security starting from the network layer, the transport layer all the way to the application layer.
Obviously Rogelio's experience in the field is as wide as you can imagine which he was able to effectively discuss and present in this book in my humble opinion.
Note:
I am still using this book as reference on my desk when I deal with customers who would liked to integrate their sofphones or CRM with our proprietary predictive dialer.
Thanks Rogelio!
Ron
[...]

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Session Initiation Protocol (SIP) was conceived in 1996 as a signaling protocol for inviting users to multimedia conferences. With this development, the next big Internet revolution silently started. That was the revolution which would end up converting the Internet into a total communication system which would allow people to talk to each other, see each other, work collaboratively or send messages in real time. Internet telephony and, in general, Internet multimedia, is the new revolution today and SIP is the key protocol which allows this revolution to grow.The book explains, in tutorial fashion, the underlying technologies that enable real-time IP multimedia communication services in the Internet (voice, video, presence, instant messaging, online picture sharing, white-boarding, etc). Focus is on session initiation protocol (SIP) but also covers session description protocol (SDP), Real-time transport protocol (RTP), and message session relay protocol (MSRP).In addition, it will also touch on other application-related protocols and refer to the latest research work in IETF and 3GPP about these topics. (3GPP stands for "third-generation partnership project" which is a collaboration agreement between ETSI (Europe), ARIB/TTC (Japan), CCSA (China), ATIS (North America) and TTA (South Korea).) The book includes discussion of leading edge theory (which is key to really understanding the technology) accompanied by Java examples that illustrate the theoretical concepts. Throughout the book, in addition to the code snippets, the reader is guided to build a simple but functional IP soft-phone therefore demonstrating the theory with practical examples.This book covers IP multimedia from both a theoretical and practical point of view focusing on letting the reader understand the concepts and put them into practice using Java. It includes lots of drawings, protocol diagrams, UML sequence diagrams and code snippets that allow the reader to rapidly understand the concepts. KEY FEATURES* Focus on HOW multimedia communications over the Internet works to allow readers to really understand and implement the technology * Explains how SIP works, including many programming examples so the reader can understand abstract concepts like SIP dialogs, SIP transactions, etc. * It is not focused on just VoIP. It looks At a wide array of enhanced communication services related to SIP enabling the reader put this technology into practice.* Includes nearly 100 references to the latest standards and working group activities in the IETF, bringing the reader completely up to date. * Provides a step-by-step tutorial on how to build a basic, though functional, IP soft-phone allowing the reader to put concepts into practice. * For advanced readers, the book also explains how to build a SIP proxy and a SIP registrar to enhance one's expertise and marketability in this fast moving area.

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