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T-Carrier Systems

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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  … 
Definition continues below.
T-Carrier Systems White Papers (View All Report Types)
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Bringing Business Communications into the Mobile Future
sponsored by Vodafone/Cisco
WHITE PAPER: Access this white paper to learn how Vodafone solutions can give you a modern communications system that is ready for the future of business.
Posted: 18 Jun 2015 | Published: 26 Dec 2014

Vodafone/Cisco

Building a Business Case for a Semantic Interoperability Platform
sponsored by Compressus
WHITE PAPER: Read this white paper to learn how data sharing through effective interoperability software can bridge multiple IT systems and share information in concise, actionable formats.
Posted: 09 Apr 2015 | Published: 09 Apr 2015

Compressus

Building a Productive Workforce with the Right UCC Solution
sponsored by Hewlett-Packard Limited
WHITE PAPER: This white paper discusses tips for deploying an HP-empowered Lync UCC solution that improves decision making, increases customer satisfaction and drives business results.
Posted: 11 Jun 2015 | Published: 26 Dec 2014

Hewlett-Packard Limited

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

Cloud IT: The Impact of Cloud Supply Chain Platforms on the Role of IT
sponsored by GT Nexus
WHITE PAPER: In this valuable white paper learn more about the impact of cloud supply chain platforms on the role of IT and how you can better prepare your team for the challenges they may face.
Posted: 19 Feb 2015 | Published: 19 Feb 2015

GT Nexus

Configuration, Not Coding: How to Expedite Changes on IT Service Platforms
sponsored by CA Technologies
WHITE PAPER: This white paper explores how 2 large organizations leveraged their service desk platform by using configuration instead of coding to speed deployment and quickly add changes. Read on to see their results and how this software can benefit your IT organization.
Posted: 05 Mar 2013 | Published: 30 Sep 2012

CA Technologies

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

CW+: Quocirca report: Communications technology – be prepared to be flexible
sponsored by ComputerWeekly.com
WHITE PAPER: Communications needs for many organisations are changing rapidly. Internally, there are always new technologies appearing and changes in working styles to deal with but there is now, increasingly, the influence of more social and consumer choices affecting the officially deployed systems.
Posted: 21 Oct 2011 | Published: 12 Aug 2010

ComputerWeekly.com

CW+: Quocirca report: Telecoms re-invention - optimising the online customer experience
sponsored by ComputerWeekly.com
WHITE PAPER: As networks, devices and media converge, telecoms companies have increasingly complex catalogues of products and services on offer to customers who are, in turn, becoming more aware that they can easily switch to other providers.
Posted: 21 Oct 2011 | Published: 24 Aug 2010

ComputerWeekly.com

Decision Guide: Hosted vs. Premises-based Unified Communications Solutions
sponsored by XO Communications
WHITE PAPER: Access this white paper to learn the ins and outs of premises-based UC vs. UC as a service so you can make a decision that is best suited for your business needs.
Posted: 27 Jul 2015 | Published: 27 Jul 2015

XO Communications

Billing System Perspective: Convergence in Telecommunication
sponsored by Comarch Telecommunications
WHITE PAPER: To achieve all modern telecommunication requirements it was necessary to change service delivery architectures as well as billing systems architectures. This paper examines the a billing solution that delivers on all of today's service providers needs.
Posted: 20 Jun 2008 | Published: 01 Jan 2007

Comarch Telecommunications

Boost IT Visibility & Value with Service Catalog
sponsored by ServiceNow
WHITE PAPER: Find out how creating a great service catalog can help prove the value of IT, and why many consider it fundamental.
Posted: 19 May 2014 | Published: 30 Apr 2013

ServiceNow

Broadband Household Segmentation: The Impact on Service Provider Consumer Applications Strategies
sponsored by Alcatel
WHITE PAPER: This paper details a recent survey of North American households currently subscribed to broadband internet access. Read this paper to better understand attitudes and behaviors that will drive the adoption of next-gen broadband applications and serv...
Posted: 16 Oct 2006 | Published: 01 Sep 2006

Alcatel

Business-Model-Driven Data Warehousing: Keeping Data Warehouses Connected to Your Business
sponsored by Kalido
WHITE PAPER: This paper analyzes the issues of conventional data warehouse design process and explains how this practice can be improved using a business-model-driven process in support of effective Business Intelligence.
Posted: 04 Jun 2008 | Published: 01 Jun 2008

Kalido

Buyer's Guide: What Every Business Needs to Know When Selecting a Phone System
sponsored by RingCentral
WHITE PAPER: This step-by-step guide helps you choose the right phone system based on your overall business goals.
Posted: 17 Feb 2014 | Published: 31 Dec 2013

RingCentral

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 Dell, Inc.
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

Dell, Inc.

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.

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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