Recently, VoIP (Voice over Internet Protocol) is a great interesting voice communication over the Internet, with high level quality of service (QoS) along with circuit switch and cellular. The objective in this project is to assess to what extend todayâ€™s internet in meeting this expectation via studying VoIP performance and its QoS. However, the methodology in this project is, first the CODECs are selected by some criteria then apply them on SIP server to finally come out with the result from the simulation in order to make comparison and analysis the QoS. This work implements VoIP protocols for two connected user using SIP server with its three CODEC algorithms. After define the main problems in this area set of parameters are taken into account due to their affection to the performance of the voice, such as jitter, packet loss, packet delay and throughput. This project is simulated three existing CODECs (converting the voice from analog to digital and compressing the packets) using the most common CODECs with VoIP, they are G.711, G.723 and G.729. However, the simulation will use NS2 platform with vary values of packet size and number of calls. Finally, the main objective from this project is to obtain a high quality of voice by make a proper decision for choosing the codec voice. As conclusion, G.711 is a preferred technique when the quality is required because of the high throughput from its packets, while G.723 perform well with the high bandwidth means it can handle many user. Finally, G.729 the high level compression is the proper technique for many user and heavy data only when the quality is not taken into account.

Performance analysis of voice codec for VoIP

Air traffic is a branch characterized by speed and safety. Consequently, at present fast and precise information flow is very important from the technological aspect. One of the main and responsible parts of the airport for information transfer between the sectors is the traffic centre which can be also called the heart of the airport. The main motive for the development and modernization of introducing information technology into the traffic centre at the airport is the low level of connections offered by the information applications implemented until now, which often represent the limiting factor in communication. The objective is to develop the management module at all levels which would enable the traffic centre employees and airport users to provide a simpler, timely and more efficient service. The problem is most pronounced at secondary airports where most of the communication is performed by radio-connection and in peak hours when the radio channels become saturated. The solution that will be presented in this paper is related to the wireless network communication which is experiencing expansion and its domination in the future traffic solutions is expected.

/pdf/informatization-of-the-airport-traffic-centre-for-improved-4edy3wwqp7.pdf

Informatization of the airport traffic centre for improved information flow

Systems Engineering and Application Development (SEAD) Practicum provides opportunities for students to engage in proposing, designing, building and testing various projects related to information technology. There are several ongoing projects designed to upgrade, improve or revamp some aspect of the Academic Research Network, generally referred to as ARNe, and services or applications that are a part of its architecture. Regis University is in the process of replacing their current architecture and equipment that forms the core of ARNe in order to facilitate further upgrades and new projects within various aspects of ARNe. This paper examines and proposes a Cisco-based routing solution utilizing Cisco ISR routing platforms for interconnecting the core WAN, providing a high-performance, scalable, and flexible solution for immediate and future needs.

/pdf/a-cisco-based-proposal-for-arne-core-routing-infrastructure-4xxk2yzsjp.pdf

A Cisco-Based Proposal for Arne Core Routing Infrastructure

A Voice over Internet Protocol (VoIP) is a protocol for transporting voice conversations across a data network. It is an emergent trend on Information and Communication Technology (ICT). This paper consist of connectivity, equipment, provider, cost factors, voice quality and phone book are the exploring contrasts among VoIP phone services that assist people to prefer VoIP phone services.

Exploring the Contrasts of VoIP Phone Services

Etelä-Karjalan koulutuskuntayhtymän tietoverkon suorituskyvyn analysointi

Internet Phone Services Simplified gives you the most basic need-to-know information and then teaches you how to get the most out of your VoIP phone services: Understand how broadband VoIP, Internet VoIP, and VoIP Chat services work Learn about and compare different services, their advantages, and their limitations Subscribe to a service, install equipment, and troubleshoot issues that might arise Integrate services into your home, including reusing your existing house telephone wiring and phone handsets Extend VoIP throughout your home by using multiline, extendable cordless phone systems Take advantage of VoIP features, including virtual phone numbers and listening to voicemail using your computer while travelingInternet phone services offer great advantages over existing telephone systems, allowing you to save money and make and receive calls using high-speed and broadband services. To help you take advantage of all that the Internet has to offer, Internet Phone Services Simplified provides you with an illustrated guide to understanding, selecting, and setting up voice over IP (VoIP) phone services.Internet Phone Services Simplified isn't overly technical-you'll get just what you need so that VoIP doesn't seem like a mystery and so that you can make good choices about Internet phone services. Provides a full-color illustrated and simple approach to learning about VoIP Follow step-by-step instructions for selecting and installing VoIP at home Explore new Internet telephony features and servicesi¾ Approved for Technical Accuracy by The Geek SquadThis book is part of the Networking Technology Series from Cisco Press®, the only authorized publisher for Cisco Systems®.

Internet Phone Services Simplified

An illustrated home networking handbook for the everyday userBuilding a network doesn't have to be all work and no play-it can actually be fun! Home Networking Simplified is an illustrated home-networking book for everyone from Grandma Mary to your tech-savvy teenage neighbor.Home Networking Simplified gives you the most basic need-to-know info and then teaches you how to get the most out of your home network: Learn the basics of home networking, from connecting to the Internet to connecting your computers Create a basic home network Grow and update your network with confidence Secure your home network and protect yourself from hackers and viruses Go wireless to put your computers where you want them-not just where cables reach Learn about the latest technologies, emerging trends, and coolest toysWhether you're a newbie, a geek, or someone in-between, Home Networking Simplified helps you harness the power of home networking.Debugged by The Geek SquadThis book is part of the Networking Technology Series from Cisco Press®, the only authorized publisher for Cisco Systems®.

Home Networking Simplified

Cisco Networking Simplified Second Edition Master today's world of Cisco networking with this book's completely updated, fully illustrated visual approach Easy enough for novices, substantive enough for networking professionals Covers the latest networking topics-from network architecture to secure wireless, unified communications to telepresence In Full Color Jim Dohertyi� ·i� Neil Andersoni� ·i� Paul Della Maggiora Now 100 percent updated for the latest technologies, this is today's easiest, most visual guide to Cisco® networking. Even if you've never set up or managed a network, Cisco Networking Simplified, Second Edition, helps you quickly master the concepts you need to understand. Its full-color diagrams and clear explanations give you the big picture: how each important networking technology works, what it can do for you, and how they all fit together. The authors illuminate networking from the smallest LANs to the largest enterprise infrastructures, offering practical introductions to key issues ranging from security to availability, mobility to virtualization. What you always wanted to know about networking but were afraid to ask! How networks and the Internet work How to build coherent, cost-effective network infrastructures How to design networks for maximum reliability and availability What you need to know about data center and application networking How to secure networks against today's threats and attacks How to take advantage of the latest mobility technologies How virtualizing networks can help businesses leverage their network investments even further How to combine messaging, calendaring, telephony, audio, video, and web conferencing into a unified communications architecture This book is part of the Networking Technology Series from Cisco Press®, the only authorized publisher for Cisco®. Category: Cisco Covers: General Networking

/pdf/cisco-networking-simplified-second-edition-1rw3miyhim.pdf

Cisco networking simplified, second edition

Cisco Networking Simplified Second Edition Master todays world of Cisco networking with this books completely updated, fully illustrated visual approach Easy enough for novices, substantive enough for networking professionals Covers the latest networking topicsfrom network architecture to secure wireless, unified communications to telepresence In Full Color Jim Doherty Neil Anderson Paul Della Maggiora Now 100 percent updated for the latest technologies, this is todays easiest, most visual guide to Cisco networking. Even if youve never set up or managed a network, Cisco Networking Simplified, Second Edition, helps you quickly master the concepts you need to understand. Its full-color diagrams and clear explanations give you the big picture: how each important networking technology works, what it can do for you, and how they all fit together. The authors illuminate networking from the smallest LANs to the largest enterprise infrastructures, offering practical introductions to key issues ranging from security to availability, mobility to virtualization. What you always wanted to know about networking but were afraid to ask! How networks and the Internet work How to build coherent, cost-effective network infrastructures How to design networks for maximum reliability and availability What you need to know about data center and application networking How to secure networks against todays threats and attacks How to take advantage of the latest mobility technologies How virtualizing networks can help businesses leverage their network investments even further How to combine messaging, calendaring, telephony, audio, video, and web conferencing into a unified communications architecture This book is part of the Networking Technology Series from Cisco Press, the only authorized publisher for Cisco. Category: Cisco Covers: General Networking

Cisco Networking Simplified (2nd Edition) (Networking Technology)

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Cisco networking simplified, second edition

Cisco Networking Simplified (2nd Edition) (Networking Technology)