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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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Formulate a Game Plan for Closing the SecOps Gap
sponsored by BMC
WHITE PAPER: Access this report to discover why collaboration between security and operations (SecOps) will drive faster threat response, stronger security, and improved compliance in your organization. Take a closer look at the SecOps gap now, and learn the gravity of IT misalignment.
Posted: 18 Mar 2016 | Published: 18 Mar 2016

BMC

Goodbye Manual Processes, Hello Productivity
sponsored by ServiceNow
WHITE PAPER: Learn how automation is the key to saving time and boosting satisfaction. This eBook, "Accelerate Service Delivery with Automation," will help you reclaim lost productivity. Download now to learn best practices for transforming your ITSM into a modern, reliable experience.
Posted: 01 Aug 2016 | Published: 01 Aug 2016

ServiceNow

How Banks Secure Conversations with their Most Valued Customers
sponsored by NICE Systems, Inc
WHITE PAPER: Voice biometrics technologies are proving to be the ideal candidate for intelligent authentication in the context of client-to-advisor conversations. Discover ways to leverage a person's voice as an accurate identifier without interrupting the natural flow of conversation.
Posted: 23 Aug 2016 | Published: 23 Aug 2016

NICE Systems, Inc

How IP Telephony Systems Enable Businesses to Leverage the Power of UC
sponsored by ShoreTel
WHITE PAPER: Hear the case for a fully converged IP telephony environment that is built to leverage the best features of UC and also have the capacity to incorporate valuable third party add-ons.
Posted: 27 May 2016 | Published: 31 Dec 2013

ShoreTel

How to Bring a Common Language to Your IT Systems
sponsored by BDNA
WHITE PAPER: This white paper provides best practices for managing your IT assets. Learn how normalizing data, enriching data, and categorizing assets can help take the pain out of IT system management.
Posted: 28 Apr 2016 | Published: 28 Apr 2016

BDNA

How to Build Marketplaces that Users Trust
sponsored by Twilio
WHITE PAPER: Unless you're connecting your consumers and products and services seamlessly, any attempt to attract, engage and retain them to transact on your marketplace will likely fail. With examples from Airbnb, Uber and a few others, dig into how you can establish trust with your customers via improving your communication strategies.
Posted: 16 Aug 2016 | Published: 16 Aug 2016

Twilio

How to Deploy Infrastructure as a Service (IaaS) with a Solid Cloud Foundation
sponsored by IBM
WHITE PAPER: In this white paper, learn how to deploy infrastructure as a service (IaaS) by way of integrating cloud with your IT resources and processes.
Posted: 22 Jan 2016 | Published: 31 Dec 2015

IBM

How to Secure Your Ecosystem of Cloud-Based Apps
sponsored by MobileIron
WHITE PAPER: Most large organizations deploy or intend to deploy a broad range of mobile apps to their employees. This white paper reviews one app security model and how it can be leveraged to secure cloud-based productivity suites on mobile devices.
Posted: 05 Aug 2015 | Published: 05 Aug 2015

MobileIron

How to tie learning to business impact
sponsored by ComputerWeekly.com
WHITE PAPER: Many organisations implement “learning engagements,” or training programmes, to increase employee satisfaction, realise better team performance, and improve communication.
Posted: 21 Oct 2011 | Published: 09 Dec 2010

ComputerWeekly.com

Hyperconverged Greater than Other Options? Use Cases and Market Trends
sponsored by Lenovo
WHITE PAPER: Simply put, companies are aggressively looking for less complexity and more agility from their servers, and legacy infrastructure just won't deliver on these demands. Access this paper to discover how to deploy workloads faster than traditional servers with HCI.
Posted: 05 Aug 2016 | Published: 31 Mar 2016

Lenovo

Hyperconverged Infrastructure and the Ideal Data Center
sponsored by Stratoscale
WHITE PAPER: A popular option among enterprises seeking the simplest system, hyperconverged infrastructure systems are readily available. With such a plethora of options, which one's best? Discover desirable outcomes organizations seek to achieve as they adopt hyperconverged infrastructures.
Posted: 14 Jun 2016 | Published: 31 Dec 2015

Stratoscale

Five Best Practices For Unified Communications
sponsored by AT&T Corp
WHITE PAPER: To meet today’s increasing demands, businesses need to communicate and collaborate more efficiently. Communication needs to be timely and effective, reaching people where and when they want to be reached, at the office, at home or on the go.  Read this white paper to learn the five best practices for unified communications.
Posted: 13 Oct 2010 | Published: 13 Oct 2010

AT&T Corp

From Fear to Value: CIO strategies for propelling business through the economic crisis
sponsored by IBM
WHITE PAPER: Your aspiration: As a CIO, drive change, innovation and efficiency to help build a smarter enterprise that will prosper amidst global competition. Your daily challenge: As a CIO, deliver business results faster and better–with less. This whitepaper outlines key strategies for CIOs to drive business results through the economic crisis.
Posted: 18 Jun 2010 | Published: 17 Mar 2009

IBM

Frost & Sullivan – 2013 Global VC Technology Leadership Award
sponsored by Vidyo, Inc.
WHITE PAPER: This Frost & Sullivan research paper details why Vidyo was awarded their Technology Leadership award in the videoconferencing market and how the solution meets today's top VC benchmarks.
Posted: 02 May 2013 | Published: 31 Dec 2012

Vidyo, Inc.

Gaining Cloud Fax Advantages with SAP Systems
sponsored by Esker Inc.
WHITE PAPER: Adoption of cloud services for fax communnication has steadily increased as organizations seek to reduce costs, simplify their IT landscapes and streamline processes. Companies looking to integrate fax with their SAP applications no longer have to choose between efficiency, cost and functionality.
Posted: 21 Dec 2010 | Published: 21 Dec 2010

Esker Inc.

Get Ready for Unified Communications!
sponsored by Arkadin
WHITE PAPER: This informative guide explores a 5 step plan for smooth, effective implementation of your newly acquired unified communications platform.
Posted: 20 May 2014 | Published: 20 May 2014

Arkadin

Getting Mobile Collaboration Right
sponsored by Avaya
WHITE PAPER: This valuable guide offers information and advice to help you prepare and build an intelligent mobile collaboration strategy.
Posted: 19 Jun 2013 | Published: 19 Jun 2013

Avaya

Global Trends Drive Business Strategies
sponsored by Alcatel-Lucent
WHITE PAPER: Today’s business models do not create the commensurate revenue to fund the investment to deliver against growing traffic volumes. This is particularly salient in North America as CSPs provide more services and bandwidth on flat rate ‘all-you-can-eat’ price models. Read this paper to learn so much more.
Posted: 19 Aug 2010 | Published: 16 Aug 2010

Alcatel-Lucent

How Customers Are Cutting Costs and Building Value with Microsoft Virtualization
sponsored by Microsoft
WHITE PAPER: Virtualization provides powerful, tangible ways to streamline many traditionally time-consuming processes and minimize the resources needed to deploy and manage IT resources. This white paper examines how Microsoft® customers are using virtualization technology to simplify their IT infrastructure, IT processes, and save money.
Posted: 19 Mar 2009 | Published: 03 Nov 2008

Microsoft

How to overcome roadblocks to legacy software replacement: a guide for IT leaders
sponsored by MSM Software
WHITE PAPER: This whitepaper gathers together the views of IT leaders from a recent survey of IT leaders and identifies the most typical roadblocks encountered when attempting to modernize legacy systems – as well as how they address those challenges.
Posted: 16 Jun 2014 | Published: 16 Jun 2014

MSM Software

How Unified Communications Pays for Itself
sponsored by ShoreTel - OLD
WHITE PAPER: In this whitepaper, uncover best practice tips for building a comprehensive business case for unified communications (UC), as well as details about the benefits you will reap and alternate approaches to UC implementation you can implement.
Posted: 06 Jun 2012 | Published: 30 Nov 2010

ShoreTel - OLD

HP OpenCall Media Platform: A Cost-effective, Agile IP Media Server
sponsored by Hewlett Packard Enterprise
WHITE PAPER: Mobile communication technologies are evolving quickly and new customer demands arise almost every day. At the same time, the economic downturn has impacted budgets, so that cost efficiency now tops the corporate agenda. Service providers must now must not only test and develop new services to meet customer demand, but do it within tight budgets.
Posted: 16 Sep 2009 | Published: 01 Sep 2009

Hewlett Packard Enterprise

HP white paper: Complete Data Protection for VMware Virtual Environments
sponsored by Hewlett Packard Enterprise
WHITE PAPER: This paper examines the issues of backup and recovery in VMware virtual server environments, and outlines the key features of HP Data Protector.
Posted: 26 Jun 2009 | Published: 01 Nov 2008

Hewlett Packard Enterprise

HP's Universal CMDB: A Balanced Approach to Unifying IT Operations, Service Desks, and Business Objectives
sponsored by Hewlett Packard Enterprise
WHITE PAPER: In this white paper, read about the evolution of Configuration Management Database (CMDB) adoption in the market, CMDB solution integration and the overall architecture requirements for CMDB.
Posted: 24 Aug 2007 | Published: 01 Jan 2007

Hewlett Packard Enterprise

IBM Cognos Lifecycle Manager - Streamline upgrades with automated testing
sponsored by IBM
WHITE PAPER: System upgrades and other IT changes can have a negative impact on business intelligence report content, but testing thousands of reports can be tedious and time-consuming. This resource introduces a utility that relieves the burden by automating the testing process.
Posted: 15 Jan 2014 | Published: 31 Oct 2012

IBM
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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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