Voip Data
Voip Data
XO Communications | IP, VoIP and Data Service - Mike Rosenbaum, CEO, Catalyst IT Services
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VoIP $84.99 Understand how new network technologies impact VoIP! Voice over Internet Protocol (VoIP) is revolutionizing the way people communicate – both in the corporate world and in personal life. The enormous success of VoIP has led to its adoption in a wide range of networking technologies. Each network technology has its unique features and poses distinct challenges for the performance of VoIP. VoIP: Wireless, P2P and New Enterprise Voice over IP describes the issues arising in the deployment of VoIP in an emerging heterogeneous network environment. Along with a brief overview of the concepts, protocols, algorithms, and equipment involved in realizing VoIP, this book focuses on two areas: quality and performance issues in deploying VoIP over various network settings, and the new mechanisms and protocols in these emerging networks to assist the deployment of VoIP. VoIP: Wireless, P2P and New Enterprise Voice over IP: Discusses the basics of VoIP, VoIP codecs and VoIP Protocols including SIP and H.323. Details new technologies such as P2P technology, VoWiFi, WiMax, and 3G Networks. Explains the QoS issues arising from deploying VoIP using the new technologies. Solves the performance issues that arise when VoIP is deployed over different network technologies. This book is an invaluable resource for professional network engineers, designers, managers, researchers, decision makers and project managers overseeing VoIP implementations.  Market analysts, consultants, and those studying advanced undergraduate and graduate courses on data, voice and multimedia communications will also find this book insightful.  |
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VoIP Hacks $23.99 Voice over Internet Protocol (VoIP) is gaining a lot of attention these days, as more companies and individuals switch from standard telephone service to phone service via the Internet. The reason is simple: A single network to carry voice and data is easier to scale, maintain, and administer. As an added bonus, it's also cheaper, because VoIP is free of the endless government regulations and tariffs imposed upon phone companies. VoIP is simply overflowing with hack potential, and VoIP Hacks is the practical guide from O'Reilly that presents these possibilities to you. It provides dozens of hands-on projects for building a VoIP network, showing you how to tweak and customize a multitude of exciting things to get the job done. Along the way, you'll also learn which standards and practices work best for your particular environment. Among the quick and clever solutions showcased in the book are those for: gauging VoIP readiness on an enterprise network using SIP, H.323, and other signaling specifications providing low-layer security in a VoIP environment employing IP hardphones, analog telephone adapters, and softPBX servers dealing with and avoiding the most common VoIP deployment mistakes In reality, VoIP Hacks contains only a small subset of VoIP knowledge-enough to serve as an introduction to the world of VoIP and teach you how to use it to save money, be more productive, or just impress your friends. If you love to tinker and optimize, this is the one technology, and the one book, you must investigate. |
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Switching to VoIP $31.99 More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP. VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mails to fractions of a penny per use. But the real enterprise turn-on is how VoIP empowers businesses to mold and customize telecom and datacom solutions using a single, cohesive networking platform. These business drivers are so compelling that legacy telephony is going the way of the dinosaur, yielding to Voice over IP as the dominant enterprise communications paradigm. Developed from real-world experience by a senior developer, O'Reilly's Switching to VoIP provides solutions for the most common VoIP migration challenges. So if you're a network professional who is migrating from a traditional telephony system to a modern, feature-rich network, this book is a must-have. You'll discover the strengths and weaknesses of circuit-switched and packet-switched networks, how VoIP systems impact network infrastructure, as well as solutions for common challenges involved with IP voice migrations. Among the challenges discussed and projects presented: building a softPBX configuring IP phones ensuring quality of service scalability standards-compliance topological considerations coordinating a complete system ?switchover? migrating applications like voicemail and directory services retro-interfacing to traditional telephony supporting mobile users security and survivability dealing with the challenges of NAT To help you grasp the core principles at work, Switching to VoIP uses a combination of strategy and hands-on "how-to" that introduce VoIP routers and media gateways, various makes of IP telephone equipment, legacy analog phones, IPTables and Linux firewalls, and the Asterisk open source PBX software by Digium. You'll learn how to build an IP-based or legacy-compatible phone system and voicemail system complete with e-mail integration while becoming familiar with VoIP protocols and devices. Switching to VoIP remains vendor-neutral and advocates standards, not brands. Some of the standards explored include: SIP H.323, SCCP, and IAX Voice codecs 802.3af Type of Service, IP precedence, DiffServ, and RSVP 802.1a/b/g WLAN If VoIP has your attention, like so many others, then Switching to VoIP will help you build your own system, install it, and begin ma |
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How to Cheat at VoIP Security $51.95 The Perfect Reference for the Multitasked SysAdmin This is the perfect guide if VoIP engineering is not your specialty. It is the perfect introduction to VoIP security, covering exploit tools and how they can be used against VoIP (Voice over IP) systems. It gives the basics of attack methodologies used against the SIP and H.323 protocols as well as VoIP network infrastructure. * VoIP Isn't Just Another Data Protocol IP telephony uses the Internet architecture, similar to any other data application. However, from a security administrator's point of view, VoIP is different. Understand why. * What Functionality Is Gained, Degraded, or Enhanced on a VoIP Network? Find out the issues associated with quality of service, emergency 911 service, and the major benefits of VoIP. * The Security Considerations of Voice Messaging Learn about the types of security attacks you need to protect against within your voice messaging system. * Understand the VoIP Communication Architectures Understand what PSTN is and what it does as well as the H.323 protocol specification, and SIP Functions and features. * The Support Protocols of VoIP Environments Learn the services, features, and security implications of DNS, TFTP, HTTP, SNMP, DHCP, RSVP, SDP, and SKINNY. * Securing the Whole VoIP Infrastructure Learn about Denial-of-Service attacks, VoIP service disruption, call hijacking and interception, H.323-specific attacks, and SIP-specific attacks. * Authorized Access Begins with Authentication Learn the methods of verifying both the user identity and the device identity in order to secure a VoIP network. * Understand Skype Security Skype does not log a history like other VoIP solutions; understand the implications of conducting business over a Skype connection. * Get the Basics of a VoIP Security Policy Use a sample VoIP Security Policy to understand the components of a complete policy. *Provides system administrators with hundreds of tips, tricks, and scripts to complete administration tasks more quickly and efficiently *Short on theory, history, and technical data that ultimately is not helpful in performing their jobs *Avoid the time drains associated with securing VoIP |
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Implementing VoIP Course for Win $239.95 Implementing VoIP course validates associate level knowledge and skills required to administer a voice network. Learn to demonstrate the skills required to perform baseline installations, operation and maintenance on Cisco VoIP solutions. Master such technologies as IP PBX, telephony, handset, call control and voicemail solutions. This is a foundation course to understand the design, planning and development of converged voice and data networks that provides theatrical and practical experience. This course is structured for preparation to take and pass the 642 436 CCNA Voice exam. Benefits Understand the differences among the common VoIP protocols Ensure that your voice network is installed correctly and securely Learn the benefits and components of Cisco Unified Communications System View Course Outline |
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Audiocodes Mediant 1000 VoIP Media Gateway Data Networking Device M1K-CH-DG-MX $2943.81 Audiocodes Mediant 1000 VoIP Media Gateway Data Networking Device M1K-CH-DG-MX |
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VoIP Voice and Fax Signal Processing $128.99 A complete and systematic treatment of signal processing for VoIP voice and fax. This book presents a consolidated view and basic approach to signal processing for VoIP voice and fax solutions. It provides readers with complete coverage of the topic, from how things work in voice and fax modules, to signal processing aspects, implementation, and testing. Beginning with an overview of VoIP infrastructure, interfaces, and signals, the book systematically covers::;. Voice compression;. Packet loss concealment techniques;. DTMF detection, generation, and rejection;. Wideband voice modules operation;. VoIP Voice-Network bit rate calculations;. VoIP voice testing;. Fax over IP and modem over IP;. Country deviations of PSTN mapped to VoIP;. VoIP on different processors and architectures;. Generic VAD-CNG for waveform codecs;. Echo cancellation;. Caller ID features in VoIP;. Packetization—RTP, RTCP, and jitter buffer;. Clock sources for VoIP applications;. Fax operation on PSTN, modulations, and fax messages;. Fax over IP payload formats and bit rate calculations;. Voice packets jitter with large data packets;. VoIP voice quality. Over 100 questions and answers on voice and more than seventy questions and answers on fax are provided at the back of the book to reinforce the topics covered throughout the text. Additionally, several clarification, interpretation, and discussion sections are included in selected chapters to aide in readers' comprehension. VoIP Voice and Fax Signal Processing is an indispensable resource for professional electrical engineers, voice and fax solution developers, product and deployment support teams, quality assurance and test engineers, and computer engineers. It also serves as a valuable textbook for graduate-level students in electrical engineering and computer engineering courses. |
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Eclipse 902-299 VoIP Kit $399.99 Complete kit for data, telephone, and voice-over-internet protocol (VoIP) systemsCut and strip 4-pair UTP/STP cable, and flat satin cable using the Universal Stripper and CutterCrimp 4-pin RJ22 handset plugs, 4- and 6-pin RJ11/12 telephone plugs, and 8-pin RJ45 data plugs using the Universal Modular Plug Crimp ToolCrimp waterproof UR, UY, and UG splices using the Compression Splice Crimp ToolTerminate 110 and 66 panels and wall jacks using the Impact Punch Down ToolTap into data and telephone lines for monitoring and testing using the 8-Way Modular Adapter with all patch cables includedTone, trace and test all data, telephone, video, satellite, cable TV, and security cables with the Universal Cable Tester including USB, “F”, RCA, BNC (all adapters included), and modular plug cablesTroubleshoot voice, Ethernet, and DSL systems with the data-safe Butt-in Test SetAccess panels and racks with the Can Wrench and 6-in-1 screwdriverSafely probe and move connections with the Probe PickStore extra connectors and parts with the multi-compartment Component BoxAdd additional tools into the large, pocketed heavy duty tool case. Features: Complete tool kit for data, telephone and voice over internet protocol (VOIP) systems. Cut and strip 4-Pair UTP/STP cable, and Flat Satin Cable using the Universal Stripper and Cutter. Crimp 4-Pin RJ22 Handset plugs, 4- and 6-pin RJ11/12 telephone plugs, and 8-pin RJ45 data plugs using the Universal Modular Plug Crimp Tool. Crimp waterproof UR, UY, and UG Splices using the Compression Splice Crimp Tool. Terminate 110 and 66 Panels and wall jacks using the Impact Punch Down Tool Tap into data and telephone lines for monitoring and testing using the 8-way Modular Adapter with all patch cables included. Tone, trace and test all data, telephone, video, satellite, cable TV, and security cables with the Universal Cable Tester including USB, “F”, RCA, BNC (all adapters included), and Modular Plug cables. Troubleshoot Voice, Ethernet, and DSL systems with the data safe Butt-in Test Set. Access panels and racks with the Can Wrench, and 6-in-1 Screwdriver. Safely probe and move connections with the Probe Pick. Store extra connectors and parts with the multi-compartment Component Box. Add additional tools into the large, pocketed heavy duty tool cas What's in the Box: |
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VoIP Hacks by Wallingford, Theodore Edition , 1 $1.99 Voice over Internet Protocol (VoIP) is gaining a lot of attention these days, as more companies and individuals switch from standard telephone service to phone service via the Internet. The reason is simple: A single network to carry voice and data is easier to scale, maintain, and administer. As an added bonus, it's also cheaper, because VoIP is free of the endless government regulations and tariffs imposed upon phone companies.VoIP is simply overflowing with hack potential, and VoIP Hacks is the practical guide from O'Reilly that presents these possibilities to you. It provides dozens of hands-on projects for building a VoIP network, showing you how to tweak and customize a multitude of exciting things to get the job done. Along the way, you'll also learn which standards and practices work best for your particular environment. Among the quick and clever solutions showcased in the book are those for:gauging VoIP readiness on an enterprise networkusing SIP, H.323, and other signaling specificationsproviding low-layer security in a VoIP environmentemploying IP hardphones, analog telephone adapters, and softPBX serversdealing with and avoiding the most common VoIP deployment mistakesIn reality, VoIP Hacks contains only a small subset of VoIP knowledge-enough to serve as an introduction to the world of VoIP and teach you how to use it to save money, be more productive, or just impress your friends. If you love to tinker and optimize, this is the one technology, and the one book, you must investigate. |
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Adtran NetVanta 6310 VoIP Gateway $1286.99 (1 Total) CompactFlash (CF) Card (2 Total) Expansion Slot 10 Mbps 10 Mbps Ethernet 10/100Base-TX 100 Mbps 100 Mbps Fast Ethernet 1700100G1 2 2 x RJ-45 10/100Base-TX WAN/DMZ 6000 6310 ADTRAN Operating System (AOS) Supports Wireless Access Points (WAPs) SIP Voice Quality Monitoring (VQM) CLI HTTP The NetVanta 6310 VoIP Gateway is designed for use in integrated IP voice and data service offering to small-to medium sized businesses, worldwide. This powerful solution combines the robust routing and voice features of ADTRAN's industry-leading Total Access 900e Series of IP Business Gateways into a modular, multi-function chassis. Adtran G.729a NetVanta NetVanta 6000 NetVanta 6310 VoIP Gateway Twisted Pair 10/100Base-TX VoIP Gateway www.adtran.com |
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Taking Charge of Your VoIP Project, Adobe Reader $43.99 This is the eBook version of the printed book. Strategies and solutions for successful VoIP deployments Justify your network investment The step-by-step approach to VoIP deployment and management enables you to plan early and properly for successful VoIP integration with your existing systems, networks, and applications. The detailed introduction offers a common grounding for members of both the telephony and data networking communities. IT managers and project leaders are armed with details on building a business case for VoIP, including details of return-on-investment (ROI) analysis and justification. A VoIP deployment is presented as a major IT project, enabling you to understand the steps involved and the required resources. The comprehensive look at quality of service and tuning describes when and where to use them in a VoIP deployment. These are often the most complex topics in VoIP; you'll get smart recommendations on which techniques to use in various circumstances. You learn how to plan for VoIP security, including prevention, detection, and reaction. Voice over IP (VoIP) is the telephone system of the future. Problem is, VoIP is not yet widely deployed, so there are few skilled practitioners today. As you make your move to VoIP, how will you know how to make VoIP work and keep it working well? What changes will you need to make without disrupting your business? How can you show your return on this investment? Many books contain technical details about VoIP, but few explain in plain language how to make it run successfully in an enterprise. Taking Charge of Your VoIP Project provides the detailed plans you need to be successful in your organization's deployment of VoIP. Through their years of work in the field, authors John Q. Walker and Jeffrey T. Hicks bring a project-oriented approach to VoIP, with much-needed clarity on getting VoIP to work well. Taking Charge of Your VoIP Project starts with simple concepts, each chapter building on the knowledge from the last. Although not a technical manual, you learn about the standards, such as H.323, G.711, and Real-Time Transport Protocol (RTP), and the implications they have on your VoIP system. Most importantly, you'll gain expert advice and a systematic guide on how to make VoIP work for your organization. This volume is in the Network Business Series offered by Cisco Press. Books in this series provide IT executives, decision makers, and networking professionals with pertinent information on today's most important technologies and business strategies. 158720092903152004 |
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valcom VIP-811 VoIP Gateway $321.99 1 1 Year Limited 1 x RJ-11 FXS 1 x RJ-45 10/100Base-TX 1.26 lb 1.38" Height x 6.13" Width x 5.25" Depth 10 Mbps 10 Mbps Ethernet 10/100Base-TX 100 Mbps 100 Mbps Fast Ethernet 24 V DC Power Adapter DHCP HTTP Telnet IEEE 802.3af Compliance 2 Relays With Form C Contacts The VIP-811 Enhanced Networked Station Port enables 1 telephone to engage in paging and phone to phone communications over an IP-based LAN/WAN. Enhanced Network Station Port Model VIP-811 will provide a single 10/100 Ethernet port, A single FXS station port and 2 form C relay contact outputs. The Enhanced Network Station Port Model VIP-811 will provide all circuitry and software to convert network data to audio output and analog telephone control signals. The Enhanced Network Station Port Model VIP-811 will provide all circuitry and software to convert input audio and analog telephone events to zone page audio and control information suitable for transmission to other Valcom IP Solutions products. The Enhanced Network Station Port Model VIP-811 shall form one part of a serverless Network based communications system. Desktop G.711 Rack-mountable Twisted Pair 10/100Base-TX VIP-811 VIP-811 VoIP Gateway Valcom, Inc VoIP Gateway Wall-mountable valcom www.valcom.com |
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Dialogic DMG2030DTI VoIP Gateway $2236.99 1 1 x RJ-45 10/100Base-TX Network LAN 1 x RJ-45 T1/E1 Network WAN 1.54 Mbps 1.54 Mbps T1 1.68" Height x 19" Width x 14.20" Depth 10 Mbps 10 Mbps Ethernet 10/100Base-TX 100 Mbps 100 Mbps Fast Ethernet 11.10 lb 19" Rack-mountable 2 Year Limited 2.05 Mbps 2.05 Mbps E1 2000 886-427 90 V AC to 264 V AC Power Supply Silence suppression with comfort noise Seamless interoperability with Dialogic Host Media Processing (HMP) Software Dynamic jitter buffer IP Channel Density: 30 TLS for SIP messages SRTP for media stream HTTPS for web interface Web Management SNMP v1 Telnet QoS The Dialogic 2000 Media Gateway Series (DMG2000 Gateway) is a turnkey appliance that seamlessly merges traditional PSTN technology with IP networks. This economical gateway helps consolidate typically separate voice and data networks and provides new and differentiated communications services. Without making radical, disruptive, and expensive upgrades to existing PBX equipment, service providers and enterprises can realize the benefits of a converged voice and data network. DMG2030DTI DMG2030DTI Media Gateway Dialogic Dialogic Corporation G.168 G.711 G.711 u/A G.723.1 G.729ab Rack-mountable RoHS STP 10/100Base-TX T1/E1 VoIP Gateway Yes www.dialogic.com |
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The Voip Handbook $29.65 The Voip Handbook |
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VoIP for Dummies $19.18 VoIP for Dummies |
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Switching to VoIP by Wallingford, Theodore Edition , 1 $1.99 More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP.VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mails to fractions of a penny per use. But the real enterprise turn-on is how VoIP empowersbusinesses to mold and customize telecom and datacom solutions using a single, cohesive networking platform. These business drivers are so compelling that legacy telephony is going the way of the dinosaur, yielding to Voice over IP as the dominant enterprise communications paradigm.Developed from real-world experience by a senior developer, O'Reilly's Switching to VoIP provides solutions for the most common VoIP migration challenges. So if you're a network professional who is migrating from a traditional telephony system to a modern, feature-rich network, this book is a must-have. You'lldiscover the strengths and weaknesses of circuit-switched and packet-switched networks, how VoIP systems impact network infrastructure, as well as solutions for common challenges involved with IP voice migrations. Among the challenges discussed and projects presented:building a softPBXconfiguring IP phonesensuring quality of servicescalabilitystandards-compliancetopological considerationscoordinating a complete system ?switchover?migrating applications like voicemail and directoryservicesretro-interfacing to traditional telephonysupporting mobile userssecurity and survivabilitydealing with the challenges of NATTo help you grasp the core principles at work, Switching to VoIP uses a combination of strategy and hands-on how-to that introduce VoIP routers and media gateways, various makes of IP telephone equipment, legacy analog phones, IPTables and Linux firewalls, and the Asterisk open source PBX software by Digium.You'll learn how to build an IP-based or legacy-compatible phone system and voicemail system complete with e-mail integration while becoming familiar with VoIP protocols and devices. Switching to VoIP remains vendor-neutral and advocates standards, not brands. Some of the standards explored include:SIPH.323, SCCP, and IAXVoice codecs802.3afType of Service, IP precedence, DiffServ, and RSVP802.1a/b/g WLANIf VoIP has your attention, like so many others, then Switching to VoIP will help you build your own system, install it, and begin making calls. It's the only thing left between you and a modern telecom network. |
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Switching to VoIP by Wallingford, Theodore Edition ILL, 0 $21.49 More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP.VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mails to fractions of a penny per use. But the real enterprise turn-on is how VoIP empowersbusinesses to mold and customize telecom and datacom solutions using a single, cohesive networking platform. These business drivers are so compelling that legacy telephony is going the way of the dinosaur, yielding to Voice over IP as the dominant enterprise communications paradigm.Developed from real-world experience by a senior developer, O'Reilly's Switching to VoIP provides solutions for the most common VoIP migration challenges. So if you're a network professional who is migrating from a traditional telephony system to a modern, feature-rich network, this book is a must-have. You'lldiscover the strengths and weaknesses of circuit-switched and packet-switched networks, how VoIP systems impact network infrastructure, as well as solutions for common challenges involved with IP voice migrations. Among the challenges discussed and projects presented:building a softPBXconfiguring IP phonesensuring quality of servicescalabilitystandards-compliancetopological considerationscoordinating a complete system ?switchover?migrating applications like voicemail and directoryservicesretro-interfacing to traditional telephonysupporting mobile userssecurity and survivabilitydealing with the challenges of NATTo help you grasp the core principles at work, Switching to VoIP uses a combination of strategy and hands-on how-to that introduce VoIP routers and media gateways, various makes of IP telephone equipment, legacy analog phones, IPTables and Linux firewalls, and the Asterisk open source PBX software by Digium.You'll learn how to build an IP-based or legacy-compatible phone system and voicemail system complete with e-mail integration while becoming familiar with VoIP protocols and devices. Switching to VoIP remains vendor-neutral and advocates standards, not brands. Some of the standards explored include:SIPH.323, SCCP, and IAXVoice codecs802.3afType of Service, IP precedence, DiffServ, and RSVP802.1a/b/g WLANIf VoIP has your attention, like so many others, then Switching to VoIP will help you build your own system, install it, and begin making calls. It's the only thing left between you and a modern te |
December 10th, 2011 in
Tech2, Technology