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ALSO CALLED: Digital Signal Level 1, DS0, Digital Signal Level Hierarchy, DS1, Digital Signal Level 4, DS3, DS2, DS4, DS Level Hierarchy, Digital Signal Level 3, Digital Signal Level 2, Digital Signal Level 0
DEFINITION: To see the relationship between T-carrier, E-carrier, and DS0 multiples, see digital signal X. The T-carrier system, introduced by the Bell System in the U.S. in the 1960s, was the first successful system that supported digitized voice transmission. The original transmission rate (1.544 Mbps) in the T1 line is in common use today in Internet service provider (ISP) connections to the Internet. Another  … 
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T-Carrier Systems White Papers (View All Report Types)
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CIO Briefing: What to Know about Creating Connected Workplaces
sponsored by AVI-SPL
WHITE PAPER: AVI-SPL recently partnered with IDG Networks to better understand how CIOs are enabling the transformation to a more connected and collaborative workplace. Access this article that will share survey results and offer insights into what you can expect from your own transformation.
Posted: 19 Jan 2017 | Published: 31 Aug 2016

AVI-SPL

Cisco Collaboration Certifications Overview
sponsored by Global Knowledge
WHITE PAPER: Access this white paper to learn how the Cisco training courses delivered by Global Knowledge are changing to provide hands-on experience with new collaborative capabilities to teach IT professionals everything there is to know about this new approach to communications.
Posted: 07 Jul 2015 | Published: 07 Jul 2015

Global Knowledge

Citrix and Microsoft Skype for Business: Working Together for Optimized Collaboration, Communication and Productivity
sponsored by Citrix
WHITE PAPER: ESG shares the experiences of three Citrix customers using XenApp and XenDesktop to virtualize Skype for Business. Over the last few years, these customers have enjoyed improved collaboration, communication and productivity by deploying Skype for Business as a secure, virtual unified communications tool.
Posted: 19 May 2017 | Published: 28 Feb 2017

Citrix

Cloud Communications in the Modern Workplace
sponsored by Mitel Networks Limited
WHITE PAPER: Many businesses are turning to cloud communications to meet their remote workers communications needs without burdening IT. In this white paper, learn more about cloud communications and the positive impact they can have on employee productivity.
Posted: 07 Apr 2017 | Published: 30 Dec 2016

Mitel Networks Limited

Cloud for Media and Entertainment: Building Business Value
sponsored by IBM
WHITE PAPER: Will cloud drive the value creation media and entertainment companies crave to deliver on connected customers' demands? See how M&E companies assess cloud's impact. Read on to achieve sustainable, flexible growth in your own organization, with a cloud infrastructure designed to accelerate time-to-market.
Posted: 05 Apr 2017 | Published: 31 Dec 2016

IBM

Collaboration in a Cloud-centric World: Choosing a Provider for Your Cloud Environment
sponsored by AVI-SPL
WHITE PAPER: In a time when IT departments are stretched to support audio, video, and web collaboration assets, the cloud has emerged as the smart way to do business. In this Frost & Sullivan report, you'll learn all the ways cloud can benefit your collaboration strategy, and how to choose the right provider for your environment.
Posted: 24 Jan 2017 | Published: 30 Nov 2016

AVI-SPL

Combine the Best of On-premise Virtualization with Public Cloud for High Performing IT
sponsored by IBM
WHITE PAPER: This paper highlights the benefits of implementing a hybrid on premises/public cloud infrastructure model, and outlines expert recommendations for effective deployment. Read on to prevent VM sprawl in your current infrastructure, and prepare to merge with public cloud.
Posted: 20 Apr 2017 | Published: 30 Jun 2016

IBM

Comprehensive TCO Analysis of UCaaS vs. On-Premises UC
sponsored by Windstream Communications
WHITE PAPER: You may think the TCO of on-premises IP PBX is lower than UCaaS – but it's actually more similar than expected. Examine all the factors that can lead to savings with the adoption of UCaaS to gain a deeper understanding of the TCO comparison between a UCaaS solution and customer-owned IP PBX.
Posted: 01 Jun 2017 | Published: 31 May 2016

Windstream Communications

Considering the Docker Data Center
sponsored by Contino
WHITE PAPER: Discover how to activate more efficient use of infrastructure, platform portability, and increased resiliency with the Docker data center container strategy highlighted here. Read on to learn how to use containerization to speed up software deployment, and more.
Posted: 01 Jun 2017 | Published: 01 Jun 2017

Contino

Consolidating Complex Environments with VMware on Cloud
sponsored by IBM
WHITE PAPER: Learn why consolidating legacy infrastructures and existing VMware environments onto this cloud architecture will eliminate compute, network, and storage resource waste. Read on to seamlessly shift your current IT workloads to a more resource and cost efficient software-defined data center.
Posted: 27 Apr 2017 | Published: 31 Dec 2016

IBM

Controlling Software Asset Management in the Mobile Era
sponsored by Snow Software
WHITE PAPER: How can you balance growing user demands and at the same time ensure your company is not exposed to license liability? Discover how creating a software store tightly integrated with effective software management processes can meet these goals.
Posted: 15 Jun 2016 | Published: 15 Jun 2016

Snow Software

Create Your Classroom in the Cloud
sponsored by Zoom Video Communications
WHITE PAPER: Many educational institutions are starting to utilize cloud collaboration tools to empower learning and administration. In this short paper, learn about a cloud collaboration suite over 5,600 schools are using for virtual classrooms, online courses, TA hours and more.
Posted: 31 Mar 2017 | Published: 30 Dec 2016

Zoom Video Communications

Customer Study: vSphere, Infrastructure Virtualization, and the Path to Digital Innovation
sponsored by VMware
WHITE PAPER: Learn to establish a virtual infrastructure which integrates a universal app platform with intelligent operations management to help you achieve your cloud and digital initiatives. From six organizations, you'll discover how to use a virtualization architecture that's as adaptive as your business.
Posted: 09 Jun 2017 | Published: 09 Jun 2017

VMware

CW Buyers Guide: Green IT
sponsored by ComputerWeekly.com
WHITE PAPER: This six-page Buyer’s Guide to Green IT helps CIOs and senior IT professionals to identify the issues around going green and explains the pros and cons of using third-party facilities to run IT services.
Posted: 29 Nov 2012 | Published: 26 Jan 2011

ComputerWeekly.com

CDW Services: Unified Communications
sponsored by CDW Corporation
WHITE PAPER: Read this paper to learn what CDW Corporation has to offer your organization in terms of unified communication solutions.
Posted: 08 Feb 2010 | Published: 22 Jan 2009

CDW Corporation

Cloud rEvolution: A Workbook for Cloud Computing in the Enterprise
sponsored by CSC
WHITE PAPER: This white paper will get you up to speed on all aspects of cloud computing. It will help you examine cloud opportunities, review potential issues, and consider where and how specific information should be processed in your organization. Check out this white paper to learn more.
Posted: 17 Nov 2010 | Published: 17 Nov 2011

CSC

Cloud-Based Services Accelerate Public Sector Adoption of Video Collaboration
sponsored by Polycom, Inc.
WHITE PAPER: The cloud is growing as a choice for government at all levels and globally. Why? Two big reasons: budget cuts and a need to streamline operations to provide more innovative, efficient services to a demanding, increasingly tech-savvy public.
Posted: 06 Sep 2012 | Published: 06 Sep 2012

Polycom, Inc.

Collaboration Is the next Game Changer in Customer Service
sponsored by Cisco
WHITE PAPER: This exclusive paper discusses how collaboration is emerging as the next big game changer for customer service, providing practical examples and key insights into how four companies implemented collaboration technologies and used them to transform their customer service environments.
Posted: 12 Jun 2014 | Published: 12 Jun 2014

Cisco

Communicate, Communicate, Communicate
sponsored by Global Knowledge
WHITE PAPER: This book excerpt examines the importance of communication in an organization and presents practical concepts for leaders to apply easily. Read on now to gain access to a unique set of strategies and initiatives designed to enable leaders to build capacity and confidence in their ability to perform.
Posted: 25 Oct 2013 | Published: 25 Oct 2013

Global Knowledge

Considerations for Building Video Chat and Streaming Applications
sponsored by Oxagile
WHITE PAPER: This whitepaper stacks up against each other the chat solutions and media servers that will set an underlying base for either custom video streaming or video chat products that you might consider building.
Posted: 07 Aug 2013 | Published: 07 Aug 2013

Oxagile

Control IT With Configuration Audit and Control
sponsored by Tripwire, Inc.
WHITE PAPER: Learn how establishing a change policy that enforces all changes are auditable and authorized, and all unauthorized changes are investigated, can enable IT organizations to reach compliance, security, and availability goals
Posted: 01 Mar 2007 | Published: 01 Feb 2007

Tripwire, Inc.

Converged Communications: People and Applications in Synch
sponsored by DellEMC and Intel®
WHITE PAPER: A unified communications platform can provide collaboration tools necessary for a company to gain a competitive edge by increasing employee productivity and improving work flows and processes. Learn about an approach that can help simplify the process of transitioning to a unified communications platform.
Posted: 23 May 2011 | Published: 23 May 2011

DellEMC and Intel®

Cool IT Equipment Efficiently to Lower Energy Use and Cut Costs
sponsored by Upsite Technologies, Inc.
WHITE PAPER: To optimize your data center infrastructure, consider these four practical best practice steps that Upsite's engineers have devised for solving cooling inefficiencies through proper airflow management.
Posted: 14 Oct 2008 | Published: 09 Oct 2008

Upsite Technologies, Inc.

Cost-Benefit Analysis: Comparing Key Players for Structured Analytics
sponsored by IBM
WHITE PAPER: Can your organization implement Hadoop clusters without being crippled by IT costs? This resource considers two major players offering structured analytics. Access now to see each of their cost-benefit results and discover the best choice for your business.
Posted: 26 Oct 2015 | Published: 26 Oct 2015

IBM

Critical Communications for Business Continuity: How to Ensure Employees, Partners & Customers Stay Connected
sponsored by Polycom, Inc.
WHITE PAPER: This paper examines why companies should develop and implement an on-demand conferencing and collaboration plan that supports business continuity for both the enterprise and its customers.
Posted: 18 Oct 2011 | Published: 18 Oct 2011

Polycom, Inc.
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T-CARRIER SYSTEMS DEFINITION (continued): …  level, the T3 line, providing 44.736 Mbps, is also commonly used by Internet service providers. The T-carrier system is entirely digital, using pulse code modulation (PCM) and time-division multiplexing (TDM). The system uses four wires and provides duplex capability (two wires for receiving and two for sending at the same time). The T1 digital stream consists of 24 64-Kbps channels that are multiplexed. (The standardized 64 Kbps channel is based on the bandwidth required for a voice conversation.) The four wires were originally a pair of twisted pair copper wires, but can now also include … 
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