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ALSO CALLED: Session Initiation Protocol, Session Initiated Protocol
DEFINITION: The Session Initiation Protocol (SIP) is an Internet Engineering Task Force (IETF) standard protocol for initiating an interactive user session that involves multimedia elements such as video, voice, chat, gaming, and virtual reality.Like HTTP or SMTP, SIP works in the Application layer of the Open Systems Interconnection (OSI) communications model. The Application layer is the level responsible  … 
Definition continues below.
SIPReports
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Transforming your voice, video and collaboration infrastructure: The IBM journey toward unified communications
sponsored by IBM
WHITE PAPER: Access this whitepaper to learn more about unified communications in the workplace and how your company can transform your voice, video, and collaboration infrastructure.
Posted: 08 Dec 2011 | Published: 08 Dec 2011

IBM

What is the Value of Unified Communications?
sponsored by Avaya
EGUIDE: The benefits of unified communications are apparent to network managers, but how can you figure out the value it will add to your organization?
Posted: 16 Nov 2011 | Published: 16 Nov 2011

Avaya

SIP Management: Top benefits and potential challenges
sponsored by Metaswitch Networks
EGUIDE: This expert E-Guide discusses the benefits of SIP trunking and highlights best practices to address the potential challenges.
Posted: 27 Sep 2011 | Published: 27 Sep 2011

Metaswitch Networks

Session Border Controllers: Addressing Tomorrow's Requirements
sponsored by Metaswitch Networks
WHITE PAPER: This white paper discusses how IP-based service innovation will impact and shape the future of session border controllers.
Posted: 27 Sep 2011 | Published: 27 Sep 2011

Metaswitch Networks

Transforming your Contact Center…”SIP-ly” Stated
sponsored by AT&T Corp
WHITE PAPER: Many businesses are investigating new ways to transform your voice now and prepare for the future of communications. This means taking a look, at and moving to, an IP-based communications infrastructure.
Posted: 21 Sep 2011 | Published: 21 Sep 2011

AT&T Corp

Story of Voice Transformation
sponsored by AT&T Corp
WHITE PAPER: This white paper discusses how voice capabilities have transformed in the past few years and explores why SIP and unified communications (UC) play such a big role in the way business is conducted today.
Posted: 16 Jun 2011 | Published: 16 Jun 2011

AT&T Corp

Unified Communications Trends and Challenges: How to Stay on Top
sponsored by ScanSource Communications
EGUIDE: This e-guide discusses the top trends affecting the unified communication's (UC) market as well as potential UC and IP telephony challenges. Learn what you can do to tackle these issues and stay ahead of the competition.
Posted: 06 Apr 2011 | Published: 06 Apr 2011

ScanSource Communications

ScanSource Communications: At-a-Glance
sponsored by ScanSource Communications
DATA SHEET: As a sales unit of ScanSource, Inc, ScanSource Communications provides you with the products, services, and support you need to build and grow your business. We are constantly looking for unique ways to help you find success, bringing you tailored solutions customized for your individual opportunity.
Posted: 30 Mar 2011 | Published: 30 Mar 2011

ScanSource Communications

How to Make Magic with VoIP: Weighing the Options
sponsored by Cisco Systems, Inc.
WHITE PAPER: VoIP with UC can transform a business across four dimensions: lower costs, higher productivity, better customer service, and higher revenues. It can make a small business appear big, and help it outperform larger competitors. There are several ways to implement VoIP. Read this paper to determine which way is best for your business.
Posted: 20 Jan 2011 | Published: 20 Jan 2011

Cisco Systems, Inc.

Investing in IP Phones: How to Control Costs, Now and Later
sponsored by Cisco Systems, Inc.
WHITE PAPER: Businesses that use voice over IP (VoIP) service and IP phones gain many advantages. No wonder desktop IP phones are used by more than a third of small and medium-sized businesses surveyed in Europe and North America. Continue reading to learn more and discover how to make the best investment through seven key questions.
Posted: 20 Jan 2011 | Published: 20 Jan 2011

Cisco Systems, Inc.

Finding the Value in Unified Communications—Understanding the Hierarchy of Return
sponsored by Frost & Sullivan
WHITE PAPER: This paper examines the four stages of return companies can see from their UC investments: Lower communications costs are followed by lower operational costs, then better productivity, and finally a true competitive advantage.
Posted: 03 Jan 2011 | Published: 03 Jan 2011


The Proven Financial Benefits of SIP Trunk Consolidation
sponsored by Siemens Enterprise Communications
WHITE PAPER: Siemens Enterprise Communications continues to lead the evolution of real-time unified communications by delivering innovative and customer-centric solutions with measurable financial benefits, and has proven both the technology and the savings for customers.
Posted: 03 Jan 2011 | Published: 03 Jan 2011

Siemens Enterprise Communications

Boosting Contact Center Capabilities with UC and SIP
sponsored by IBM
EBOOK: Unified Communications and the contact center were once perceived as different, but these two business functions and technologies are linked. Today's IT and contact center architects can leverage UC applications capabilities and integrate Session Initiation Protocol (SIP) and SIP trunking to create more proactive and reactive customer service.
Posted: 14 Dec 2010 | Published: 14 Dec 2010

IBM

Whitepaper: Understanding IBM Lotus Sametime and Unified Telephony
sponsored by IBM
WHITE PAPER: This white paper defines the IBM® Unified Communications and Collaboration (IBM UC2™) vision of making it easy for you to find, reach, and collaborate with others through a unified user experience. This strategy is designed to make it easy for you to access and manage telephone communications from inside the Lotus Sametime or Lotus Notes® client.
Posted: 13 Dec 2010 | Published: 13 Dec 2010

IBM

A Holistic View of SIP Trunking Solutions
sponsored by Siemens Enterprise Communications
PRESENTATION TRANSCRIPT: Get a holistic view of the potential costs and savings associated with SIP trunk consolidation.  Uncover actual costs and savings models, a review of key technical considerations, primary design considerations, and a discussion of a holistic architecture that can take you from SIP trunking to UC easily and economically.
Posted: 06 Dec 2010 | Published: 06 Dec 2010

Siemens Enterprise Communications

E911 VoIP Essentials for Enterprise Deployments
sponsored by XO Communications
WHITE PAPER: Deploying VoIP across multiple business locations is a great way to simplify and streamline your distributed network and reduce costs, but how does a business provide E911 effectively across the enterprise and what are the legal requirements?
Posted: 02 Dec 2010 | Published: 02 Dec 2010

XO Communications

The Proven Financial Benefits of SIP Trunk Consolidation
sponsored by Siemens Enterprise Communications
WHITE PAPER: In this paper, we’ll introduce the mechanisms of cost savings with SIP trunk consolidation, using Siemens Enterprise Communications’ OpenScape Exchange overlay solution.
Posted: 22 Sep 2010 | Published: 22 Sep 2010

Siemens Enterprise Communications

SIP: Myth versus reality
sponsored by Orange Business Services
WHITE PAPER: Modern packet-based communications are sweeping away traditional telephony standards and changing the way businesses stay connected. SIP, the latest IP enabler to hit the market, is often portrayed as the key to implementing more sophisticated, flexible voice and unified communications. But is that a fact, or merely well-publicized fiction?
Posted: 21 Jul 2009 | Published: 21 Jul 2009

Orange Business Services

Siemens Mobile UC - Where UC Meets Enterprise Mobility
sponsored by Siemens Enterprise Communications
WHITE PAPER: In response to increased employee mobility, companies are developing Unified Communications (UC) strategies and implementing UC solutions to enable a global work focus and ease employee communications problems.
Posted: 14 Oct 2008 | Published: 14 Oct 2008

Siemens Enterprise Communications

Taking a SIP: What Executives Should Know about IP Transformation in the Contact Center
sponsored by Genesys
WHITE PAPER: This white paper is intended for executives who are seeking to understand why SIP (Session Initiation Protocol) is a must-have technology for the contact center today, and how SIP-enabled IP solutions can help align you with your goals.
Posted: 04 Sep 2008 | Published: 04 Sep 2008

Genesys

The SIP High Availability and Reliability Paradigm
sponsored by F5 Networks
WHITE PAPER: Since its inception, Session Initiation Protocol has revolutionized the way people communicate using converged services. SIP provides the framework for delivering voice, video, data, and wireless services seamlessly.
Posted: 28 Apr 2008 | Published: 01 Aug 2007

F5 Networks

Session Initiated Protocol (SIP): A Five-Function Control Protocol
sponsored by F5 Networks
WHITE PAPER: The intent of this paper is to offer the reader a basic understanding of the Session Initiated Protocol. SIP is the conduit that will bring together the enterprise and telecommunications to provide IP-based communications.
Posted: 28 Apr 2008 | Published: 01 Aug 2007

F5 Networks

Tuning Applications for IP
sponsored by AT&T Corp
WHITE PAPER: A move to IP delivers the most value when a majority of applications and facilities are migrated to the converged network.
Posted: 30 Jan 2008 | Published: 01 Jan 2008

TOPICS:  IP | SIP | Web Services
AT&T Corp

Integration Challenges in Triple-Play Service Delivery
sponsored by IONA Technologies
WHITE PAPER: This Yankee Group report discusses IMS architecture as well as current trends in web services and service-oriented architecture (SOA).
Posted: 03 Oct 2007 | Published: 01 Feb 2006

IONA Technologies

Robust Infrastructure for SOA: A Technical Introduction to WebSphere Application Server V6.1
sponsored by IBM Software Group
WHITE PAPER: IBM WebSphere Application Server, Version 6.1 is the foundation of the IBM WebSphere software platform and is the key building block for a Service Oriented Architecture (SOA).
Posted: 16 Nov 2006 | Published: 01 Nov 2006

IBM Software Group
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SIP DEFINITION (continued): …  for ensuring that communication is possible. SIP can establish multimedia sessions or Internet telephony calls, and modify, or terminate them. The protocol can also invite participants to unicast or multicast sessions that do not necessarily involve the initiator. Because the SIP supports name mapping and redirection services, it makes it possible for users to initiate and receive communications and services from any location, and for networks to identify the users whereever they are.SIP is a request-response protocol, dealing with requests from clients and responses from servers. Participants … 
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