Building Telephony Systems with OpenSER

OpenSER is a flexible, free open-source VoIP server based on the Session Initiation Protocol (SIP), an application-layer control (or signaling) protocol for creating, modifying, and terminating sessions with one or more participants, including internet telephone calls, multimedia distribution, and multimedia conferences.

Engineered to power IP telephony infrastructures up to large scale, OpenSER is written in pure C for Linux/Unix-like systems with architecture-specific optimizations to offer high performance; it is able to handle 4 million users on a single processor server. The server keeps track of users, sets up VoIP sessions, relays instant messages, and creates space for new plug-in applications.

It can be used on systems with limited resources as well as on carrier-grade servers, scaling to up to thousands call setups per second. It is customizable, being able to feature as fast load balancer; SIP server flavors: registrar, location server, proxy server, redirect server; gateway to SMS/XMPP; or advanced VoIP application server.

Publisher: PACKT (April 30, 2008)
Pages: 324
Language: English
ISBN-10: 1847193730
ISBN-13: 978-1847193735
Format: PDF

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Deploying Voice over Wireless LANs

The definitive guide to planning, architecting, deploying, supporting, and creating Voice over Wireless LAN solutions

Recent advances make it possible to deliver high-quality voice and video communications over a wireless LAN (WLAN), replacing costly wired telephone and video surveillance systems and dramatically reducing support costs. However, today’s new voice over WLAN (VoWLAN) technologies require fundamentally different skills and techniques from those used in traditional voice and video systems. Now, there’s a complete guide to every facet of VoWLAN deployment: planning, design, installation, security, maintenance, and troubleshooting.

Publisher: Cisco Press (Mar 14, 2007)
Pages: 264
Language: English
ISBN-10: 1-58705-231-8
ISBN-13: 978-1-58705-231-6
Format: CHM

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AsteriskNOW

AsteriskNOW is an open-source Software Appliance from Digium: a customized Linux distribution, which includes Asterisk (the leading open-source telephony engine and tool kit), the AsteriskGUI, and all the other software needed for an Asterisk telephony system. AsteriskNOW is easy to install. It allows you to deploy Asterisk quickly and easily, and offers flexibility, functionality and features that are available only in expensive proprietary business systems.

Publisher: PACKT (February 29, 2008)
Pages: 204
Language: English
ISBN-10: 1847192882
ISBN-13: 978-1847192882
Format: PDF

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Speech Processing for IP Networks: Media Resource Control Protocol (MRCP)

Media Resource Control Protocol (MRCP) is a new IETF protocol, providing a key enabling technology that eases the integration of speech technologies into network equipment and accelerates their adoption resulting in exciting and compelling interactive services to be delivered over the telephone. MRCP leverages IP telephony and Web technologies such as SIP, HTTP, and XML (Extensible Markup Language) to deliver an open standard, vendor-independent, and versatile interface to speech engines.

Speech Processing for IP Networks brings these technologies together into a single volume, giving the reader a solid technical understanding of the principles of MRCP, how it leverages other protocols and specifications for its operation, and how it is applied in modern IP-based telecommunication networks. Focusing on the MRCPv2 standard developed by the IETF SpeechSC Working Group, this book will also provide an overview of its precursor, MRCPv1.

Publisher: Wiley (April 27, 2007)
Pages: 368
Language: English
ISBN-10: 0470028343
ISBN-13: 978-0470028346
Format: PDF

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Video Conferencing over IP: Configure, Secure, and Troubleshoot

Video Conferencing over IP is the perfect guide to getting up and running with video teleconferencing for small to medium size enterprises. Topic coverage includes how to determine bandwidth needs; configure network routers, gateways, firewalls and switches; and configure, secure and troubleshoot your deployment. Major software solutions from Microsoft, Yahoo, AOL, VidiTel, iVisit, Vibe Phone and Skype are also covered.

Edición: Syngress (2006)
Idioma: Inglés
Formato: PDF

Contenido:

1. Introduction to Video Calls
2. Getting Started
3. Selecting a High-Speed Internet Provider
4. Just Tell Me What I Need
5. Selecting a Computer or Dedicated Videophone Device
6. Free Video Call Software
7. Commercial Video Call Software
8. Other Videoconferencing
9. The Future of Video Calls
10. Appendix A: Firewall Port Information
11. Appendix B: Video Call Software Solutions
12. Appendix C: Software Add-ons for Skype

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Cisco Unity Fundamentals

Cisco Unity Fundamentals provides design and administration goals for migrating from PBX to Cisco IP Telephony, as well as working in a mixed PBX/Cisco IP Telephony environment. You will learn about the transition from the traditional model, with separate architectures for voice-mail and e-mail systems, to supporting unified messaging: e-mail, voice, and fax messages delivered to a single inbox. You will also discover common troubleshooting solutions, such as performance monitoring and the importance of data collection for predicting future system requirements.

Edición: Cisco Press (2004)
Idioma: Inglés
Formato: CHM

Contenido:

1. Cisco Unified Communications System Fundamentals
2. Using Your Cisco Unified Communications System
3. Setting Up Cisco Unified Communications
4. Unified Communications Subscribers
5. Cisco Unified Communications System Customization
6. Cisco Unified Communications System Maintenance
7. Understanding Cisco Unified Communications System Hardware
8. Cisco Unified Communications System Software
9. Cisco Unified Communications Integrations
10. Unified Communications Networking
11. Unified Communications Backup and Utilities

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Building a VoIP Network with Nortel's Multimedia Communication Server 5100

This is the only book you need if you are tasked with designing, installing, configuring, and troubleshooting a converged network built with Nortel’s Multimedia Concentration Server 5100, and Multimedia Communications Portfolio (MCP) products. With this book, you’ll be able to design, build, secure, and maintaining a cutting-edge converged network to satisfy all of your business requirements.

Edición: Syngress (2006)
Idioma: Inglés
Formato: PDF

Contenido:

1. Getting Started with the MCS 5100
2. MCS 5100 Architecture
3. System Management Console
4. Provisioning Client
5. Ad Hoc and Meet Me Conferencing
6. Multimedia PC Client
7. Personal Agent
8. SIP Architecture
9. Appendix A: Regulatory Compliance

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Cisco AVVID and IP Telephony Design & Implementation

Many lessons have already been learned from the rapid adoption of Cisco's AVVID IP Telephony product line. Companies must cost effectively integrate "old world" technologies with the new, engineer packet transport networks for quality of service, simultaneously bolster traditional telephony and IP skills, and continuously exercise proper risk management. The purpose of this book is to help readers overcome the inherent complexities of IP telephony so that its promise can be fully realized.

Edición: Syngress (2001)
Idioma: Inglés
Formato: PDF

Contenido:

1. Old World Technologies
2. New World Technologies
3. AVVID Gateway Selection
4. AVVID Clustering
5. Voice and Video Gatekeeper Design
6. DSPs Explained
7. AVVID Applications
8. Advanced QoS for AVVID Environments
9. AVVID Dial Plans
10. Designing and Implementing Single Site Solutions
11. Designing and Implementing Multisite Solutions
12. Cisco AVVID and IP Telephony Design & Implementation Fast Track

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Voice over IP Fundamentals (2nd Edition)

Voice over IP Fundamentals explains how a basic IP telephony infrastructure is built and works today, major concepts concerning voice and data networking, and transmission of voice over data networks. You’ll learn how voice is signaled through legacy telephone networks, how IP signaling protocols are used to interoperate with current telephony systems, and how to ensure good voice quality using quality of service (QoS).

Edición: Cisco Press (2006)
Idioma: Inglés
Formato: PDF

Contenido:

1. Overview of the PSTN and Comparisons to Voice over IP
2. Enterprise Telephony Today
3. Basic Telephony Signaling
4. Signaling System 7
5. PSTN Services
6. IP Tutorial
7. VoIP: An In-Depth Analysis
8. Quality of Service
9. Billing and Mediation Services
10. Voice Security
11. H.323
12. SIP
13. Gateway Control Protocols
14. PSTN and VoIP Interworking
15. Service Provider VoIP Applications and Services
16. Enterprise Voice over IP Applications and Services

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Configuring Cisco Voice Over IP (2nd Edition)

Arming network administrators with a thorough understanding of Cisco’s current VoIP solutions and the means to put them to work, Configuring Cisco Voice Over IP, Second Edition demonstrates how to configure all of Cisco’s core VoIP products—among them Cisco CallManager software, Cisco 7910 series phones, and server-based IP PBXs. Now updated with coverage of Cisco’s AVVID enterprise solutions, this book continues to supply hands-on guidance on implementing QoS (Quality of Service) features to reduce network latency and jitter. It also provides case studies illustrating real-world VoIP configuration and troubleshooting strategies.

Edición: Syngress (2002)
Idioma: Inglés
Formato: PDF

Contenido:

1. Introduction to Voice Over IP and Business Justifications
2. Traditional Voice Telephony Principles
3. VoIP Signaling and Voice Transport Protocols
4. An Overview of Cisco’s VoIP Components
5. VoIP Configurations
6. Configuring QoS for VoIP
7. Testing and Troubleshooting VoIP
8. Connecting PABXs with VoIP Scenarios
9. Intra- and Interoffice VoIP Scenarios

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IP Telephony Unveiled

IP Telephony Unveiled is written for all those responsible for corporate strategies for revenue generation, cost containment, and customer satisfaction. IP Telephony Unveiled uncovers the value behind this technology, which helps you see past what might appear to be only a new telephone system, to understand the strategic enabler laying dormant in many companies' networks. Through this book, you will understand the real benefits of an IP telephony strategy and get assistance in developing this strategy inside your organization.

Edición: Cisco Press (2004)
Idioma: Inglés
Formato: PDF

Contenido:

1. Haven't We Been Here Before?
2. Wait a Minute? My Phone System Works Just Fine?
3. But What About All of My PBX Features?
4. If This Isn't a PBX, What Is It?
5. Focusing on the Few
6. A Different View of ROI
7. Watch That First Step
8. Looking Ahead

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Practical VoIP Security

This book was written for the thousands of IT professionals—from CIOs to circuit-switched telecom engineers—who are now responsible for deploying and maintaining secure VoIP networks. The book explains the impact on your VoIP network of PSTN, SIP, H.323, firewalls, NAT, encryption, and the regulatory environment. Coverage includes evaluation, design, integration, and management of VoIP networking components, including IP telephones, gateways, gatekeepers, registration servers, media servers, and proxy servers. Throughout the book, the authors rely on their extensive real-world experience to provide readers with practical applications and solutions.

Edición: Syngress (2006)
Idioma: Inglés
Formato: PDF

Contenido:

1. Introduction to VoIP Security
2. Asterisk Configuration and Features
3. The Hardware Infrastructure
4. PSTN Architecture
5. H.323 Architecture
6. SIP Architecture
7. Other VoIP Communication Architectures
8. Support Protocols
9. Threats to VoIP Communications Systems
10. Validate Existing Security Infrastructure
11. Confirm User Identity
12. Active Security Monitoring
13. Logically Segregate Network Traffic
14. IETF Encryption Solutions for VoIP
15. Regulatory Compliance
16. The IP Multimedia Subsystem: True Converged Communications
17. Recommendations

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Asterisk Hacking

Asterisk hacking shows readers about a hacking technique they may not be aware of. It teaches the secrets the bad guys already know about stealing personal information through the most common, seemingly innocuous, highway into computer networks: the phone system.

Edición: Syngress (2007)
Idioma: Inglés
Formato: PDF

Contenido:

1. What Is Asterisk and Why Do You Need It?
2. Setting Up Asterisk
3. Configuring Asterisk
4. Writing Applications with Asterisk
5. Understanding and Taking Advantage of VoIP Protocols
6. Asterisk Hardware Ninjutsu
7. Threats to VoIP Communications Systems

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Developing Cisco IP Phone Services: A Cisco AVVID Solution

Developing Cisco IP Phone Services uses detailed code samples to explain the tools and processes used to develop custom phone services. You'll learn about XML, CallManager, Cisco IP Phones, and the history behind why Cisco chose XML to deploy phone services. You'll find detailed information to help you learn how to build a service, how to build a directory, and how to integrate your service with Cisco CallManager.

Edición: Cisco Press (2002)
Idioma: Inglés
Formato: PDF

Contenido:

1. How This Book Can Help You Achieve Business Goals
2. The Basics
3. Phone Services Primer
4. Using Cisco IP Phone XML Objects and Tags
5. Using HTTP
6. XML Conventions
7. Building a Service
8. Building a Directory
9. Integrating a Service with Cisco IP Phones
10. Techniques for Advanced Services
11. XML Development Tools
12. Cisco CallManager Simulator
13. Appendix 1: Glossary

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Deploying Cisco Voice over IP Solutions

Deploying Cisco Voice over IP Solutions provides networking professionals the knowledge, advice, and insight necessary to design and deploy voice over IP (VoIP) networks that meet customers' needs for scalability, services, and security. Beginning with an introduction to the important preliminary design elements that need to be considered before implementing VoIP, Deploying Cisco Voice over IP Solutions also demonstrates the basic tasks involved in designing an effective service provider-based VoIP network. You'll conclude with design and implementation guidelines for some of the more popular and widely requested VoIP services, such as prepaid services, fax services, and virtual private networks (VPNs).

Edición: Cisco Press (2001)
Idioma: Inglés
Formato: PDF

Contenido:

1. Understanding Traffic Analysis
2. Understanding Echo Analysis
3. Understanding Quality of Service for Voice over IP
4. Understanding Call Admission Control
5. Designing Static Dial Plans for Large VoIP Networks
6. Designing a Long-Distance VoIP Network
7. Managed Multiservice Networks and Packet Voice VPNs
8. Fax Services
9. Unified Messaging
10. Prepaid Services
11. Appendix A: Erlang B Traffic Model
12. Appendix B: Extended Erlang B Traffic Model
13. Appendix C: TCL IVR Scripts

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Voice and Video Conferencing Fundamentals

Voice and Video Conferencing Fundamentals is for every professional involved with audio or video conferencing: network and system administrators, engineers, technology managers, and Cisco solution partners alike. Whether you’re involved with design, development, selection, implementation, management, or support, you’ll find the in-depth knowledge you need to succeed.

Edición: Cisco Press (2007)
Idioma: Inglés
Formato: PDF

Contenido:

1. Overview of Conferencing Services
2. Conferencing System Design and Architecture
3. Fundamentals of Video Compression
4. Media Control and Transport
5. Signaling Protocols: Conferencing Using SIP
6. Signaling Protocols: Conferencing Using H.323
7. Lip Synchronization in Video Conferencing
8. Security Design in Conferencing
9. Appendix A: Video Codec Standards

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