Research Article a Survey of Open Source Products for Building a SIP Communication Platform
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Instant Messaging: Keeping Your Child Safe and Secure
Online Instant Messaging: Keeping Your Child Safe and Secure Presented by: Meredith Stannard, Nauset Regional High School [email protected] Barbara Dominic, Nauset Regional Middle School [email protected] Kathy Schrock, Nauset Public Schools [email protected] Spring 2003 1 Instant messages are lasting ©2001. USA Today. http://www.usatoday.com/tech/news/2001-06-21-teens-im-lasting.htm By Karen Thomas, USA TODAY Breaking up. Making up. Making plans. Asking out. Saying "hey." From the mundane to the emotionally charged, there are no limits to the ways today's kids connect and bond over instant messages (IMs) — those pop-up text windows used for carrying on real-time conversations online. "It's not just empty chatter. They're using (IMs) to have difficult conversations — someone's talking behind your back and you want to confront them," says Amanda Lenhart of the Pew Internet & American Life project. Its survey, out Thursday, finds that nearly three-fourths of online kids ages 12 to 17 rely on IMs to keep in touch with friends. Caroline Barker, 16, is among 35% of teens who use IMs daily; she chats with about 10 close friends and 50 acquaintances in the Bethesda, Md., area. "It's especially good for making plans, or if you're just bored," she says. "It's a given that everybody has it," adds her friend Valerie Hutchins, 15. These Maryland friends IM while doing homework, talking on the phone and watching TV. And they offer insight to the complex social rules that come with a form of communication that still has many adults bewildered. -
Lesson Plans and Resources for There There by Tommy Orange
Lesson Plans and Resources for There There by Tommy Orange Table of Contents 1. Overview and Essential Questions 2. In-Class Introduction 3. Common Core Standards Alignment 4. Reader Response Questions 5. Literary Log Prompts + Worksheets 6. Suggested Analytical Assessments 7. Suggested Creative Assessments 8. Online Resources 9. Print Resources - “How to Talk to Each Other When There’s So Little Common Ground” by Tommy Orange - Book Review from The New York Times - Book Review from Tribes.org - Interview with Tommy Orange from Powell’s Book Blog These resources are all available, both separately and together, at www.freelibrary.org/onebook Please send any comments or feedback about these resources to [email protected]. OVERVIEW AND ESSENTIAL QUESTIONS The materials in this unit plan are meant to be flexible and easy to adapt to your own classroom. Each chapter has discussion questions provided in a later section. Through reading the book and completing any of the suggested activities, students can achieve any number of the following understandings: - A person’s identity does not form automatically – it must be cultivated. - Trauma is intergenerational -- hardship is often passed down through families. - A physical place can both define and destroy an individual. Students should be introduced to the following key questions as they begin reading. They can be discussed both in universal terms and in relation to specific characters in the book: Universal - How has your family cultivated your identity? How have you cultivated it yourself? -
VOIP – Voice Over IP Overview
VOIP – Voice over IP Overview Introduction Voice over IP (VOIP), otherwise known as IP telephony, is the delivery of voice information over Internet Protocol (IP) packet switched networks. This means sending voice information in digital form in discrete packets rather than in the traditional circuit-committed protocols of the public switched telephone network (PSTN). A major advantage of VOIP is that it can avoid the tolls charged by ordinary telephone service by utilising fixed charge IP network services such as broadband. Recent development with SIP (see below) technology and hardware supporting this standard has resulted in the production of a number of commercially marketed SIP handsets, both wired and wireless networks, removing the need for a PC or laptop running a software handset, or “softphone”, to connect to VOIP services. A subscription to a local server from a SIP handset or softphone provides you with all the normal telephony features including voice and fax, as well as text and even video services. SIP (Session initiation protocol) is an Internet standard specified by the Internet Engineering Task Force (IETF) in RFC 2543. SIP is used to initiate, manage, and terminate interactive sessions between one or more users on the Internet. SIP, which borrows heavily from HTTP and the e-mail protocol SMTP, provides scalability, extensibility, flexibility, and capabilities for creation of new services. SIP is increasingly used for Internet telephony signalling, in gateways, PC phones, softswitches, and softphones, but it is not limited to Internet telephony and can be used to initiate and manage any type of session, including video, interactive games, and text chat. -
A Framework for Real-Time Communications
Anton is a leading experts on Real Time Anton Venema Communications solutions, and the 1 Chief Technology Officer visionary lead architect behind IceLink, WebSync and LiveSwitch. iRTC Internet-Based Real Time Communications Introduction What’s the first thought that comes into your mind when you think about real-time communications? Is it a phone call you had a few minutes ago? A text message sent to your mobile? Maybe something more modern, like a tweet or video broadcast? All of these fall under the umbrella of what we like to call Internet-based real time communications, or iRTC for short. Real-time communications have been a part of our lives for a long time. From public telephone networks to radios all the way back to the telegraph, humanity has a history of seeking out new and better ways to use technology to improve communication. In the past decade, technology has arguably advanced more than the past century before it. Smartphones have stormed the market, mobile processors are advancing in line with Moore’s law, LTE rollouts are delivering unprecedented Internet speeds across the world, and WiFi hotspots are becoming ubiquitous. iRTC Includes Many Applications The availability of high-speed Internet services just about everywhere is causing a fundamental shift in the way people want to communicate and consume media. Cable networks are finding it more difficult to distinguish between their Internet and TV services, especially when companies like Netflix and HBO are able to publish their content directly to consumers over the Internet. Even live broadcasts, TV’s last stronghold, are being slowly replaced as platforms like YouTube allow content to be broadcast live to millions of users simultaneously over the Internet. -
Master's Thesis Electronic Gatekeeper Using ETHERNET
University of West Bohemia Faculty of Applied Sciences Department of Computer Science and Engineering Master’s thesis Electronic Gatekeeper using ETHERNET Plzeň 2019 Hamza Elghoul Místo této strany bude zadání práce. Declaration I hereby declare that this master’s thesis is completely my own work and that I used only the cited sources. Plzeň, 2 May 2018 Hamza Elghoul Abstract The aim of this thesis is the analysis and the realization of a budget 2-way communication system using ETHERNET connection, more specific- ally a door intercom station (hereinafter ”Bouncer” or "Gatekeeper"), where it is possible to make voice calls between two CLIENTS, a CALLER and a CALLEE with an acceptable to minimal delay. There are many alternative methods available for implementing such sys- tems, this project will try to compare some of these solutions and choose the most convenient platform according to a number of factors, such as band- width, processing power needed and communication protocols in question. Keywords: VoIP, SIP,SDP, server, client, LAN, ethernet, embedded, audio, raspberry pi Contents Page List of Figures7 1 Preface 10 2 Analysis 11 2.1 Objectives and Requirements................. 11 2.2 Hardware............................ 12 2.2.1 Arduino......................... 12 2.2.2 RaspberryPi 3 Model B................ 13 2.2.3 Banana Pi........................ 14 2.2.4 Orange Pi........................ 15 2.2.5 CubieBoard 2...................... 16 2.2.6 Beagle Bone Black................... 16 2.3 Application........................... 18 2.4 Audio capture and digitalisation................ 19 2.4.1 Signaling Protocols................... 20 2.5 Communication Protocol.................... 23 2.5.1 Session Initiation Protocol............... 23 2.5.2 Real Time Protocol.................. -
Unit 5: Understanding and Resolving Guest Problems
Unit 5: Understanding and Resolving Guest Problems Project Hotel T.E.A.C.H Curriculum Center for Immigrant Education and Training (ACE) LaGuardia Community College Hotel TEACH Lesson Plan Unit 5, Lesson 1 Career Counseling: Listening with Empathy Objectives Sts will learn to resolve problems and listen empathetically for improved customer service. EFF Skill Sets addressed Cooperate with Others: Try to adjust one’s actions to take into the account the needs of others and/or the task to be accomplished. Industry Skill Sets addressed Resolve Guest Problems Exceed Customer Expectations Activity 1: Empathy Skills T introduces another important component of active listening: empathy. T asks the Sts to define “empathy.” As Sts call out answers, T leads responses towards the following definition and writes it on the board. Empathy is the ability to recognize and understand the emotions, beliefs, moods and desires of another person. Empathy is often characterized as the ability to “put oneself into another’s shoes.” T elicits from Sts the reasons why it would be important for hotel workers to have empathy. Some examples might be as follows: 1. Listening empathetically makes people feel as if they are truly being heard and that their needs will be taken care of. 2. Listening with empathy gives guests a positive experience of the hotel and of you as a worker. Guests will always remember the worker who truly listened and cared about their problem, as opposed to the worker who offers a quick solution. 3. When you acknowledge how people are feeling, you reassure them that they are understood. -
Universidad Pol Facultad D Trabajo
UNIVERSIDAD POLITÉCNICA DE MADRID FACULTAD DE INFORMÁTICA TRABAJO FINAL DE CARRERA ESTUDIO DEL PROTOCOLO XMPP DE MESAJERÍA ISTATÁEA, DE SUS ATECEDETES, Y DE SUS APLICACIOES CIVILES Y MILITARES Autor: José Carlos Díaz García Tutor: Rafael Martínez Olalla Madrid, Septiembre de 2008 2 A mis padres, Francisco y Pilar, que me empujaron siempre a terminar esta licenciatura y que tanto me han enseñado sobre la vida A mis abuelos (q.e.p.d.) A mi hijo icolás, que me ha dejado terminar este trabajo a pesar de robarle su tiempo de juego conmigo Y muy en especial, a Susana, mi fiel y leal compañera, y la luz que ilumina mi camino Agradecimientos En primer lugar, me gustaría agradecer a toda mi familia la comprensión y confianza que me han dado, una vez más, para poder concluir definitivamente esta etapa de mi vida. Sin su apoyo, no lo hubiera hecho. En segundo lugar, quiero agradecer a mis amigos Rafa y Carmen, su interés e insistencia para que llegara este momento. Por sus consejos y por su amistad, les debo mi gratitud. Por otra parte, quiero agradecer a mis compañeros asesores militares de Nextel Engineering sus explicaciones y sabios consejos, que sin duda han sido muy oportunos para escribir el capítulo cuarto de este trabajo. Del mismo modo, agradecer a Pepe Hevia, arquitecto de software de Alhambra Eidos, los buenos ratos compartidos alrrededor de nuestros viejos proyectos sobre XMPP y que encendieron prodigiosamente la mecha de este proyecto. A Jaime y a Bernardo, del Ministerio de Defensa, por haberme hecho descubrir las bondades de XMPP. -
Download Windows Live Messenger for Linux Ubuntu
Download windows live messenger for linux ubuntu But installing applications in Ubuntu that were originally made for I found emescene to be the best Msn Messenger for Ubuntu Linux so far. It really gives you the feel as if you are using Windows Live Messenger. Its builds are available for Archlinux, Debian, Ubuntu, Fedora, Mandriva and Windows. At first I found it quite difficult to use Pidgin Internet Messenger on Ubuntu Linux. Even though it allows signing into MSN, Yahoo! Messenger and Google Talk. While finding MSN Messenger for Linux / Ubuntu, I found different emesene is also available and could be downloaded and installed for. At first I found it quite difficult to use Pidgin Internet Messenger on Ubuntu Linux. Even though it allows signing into MSN, Yahoo! Messenger. A simple & beautiful app for Facebook Messenger. OS X, Windows & Linux By downloading Messenger for Desktop, you acknowledge that it is not an. An alternative MSN Messenger chat client for Linux. It allows Linux users to chat with friends who use MSN Messenger in Windows or Mac OS. The strength of. Windows Live Messenger is an instant messenger application that For more information on installing applications, see InstallingSoftware. sudo apt-get install chromium-browser. 2. After the installation is Windows Live Messenger running in LinuxMint / Ubuntu. You can close the. Linux / X LAN Messenger for Debian/Ubuntu LAN Messenger for Fedora/openSUSE Download LAN Messenger for Windows. Windows installer A MSN Messenger / Live Messenger client for Linux, aiming at integration with the KDE desktop Ubuntu: Ubuntu has KMess in its default repositories. -
Wiretapping End-To-End Encrypted Voip Calls Real-World Attacks on ZRTP
Institute of Operating Systems and Computer Networks Wiretapping End-to-End Encrypted VoIP Calls Real-World Attacks on ZRTP Dominik Schürmann, Fabian Kabus, Gregor Hildermeier, Lars Wolf, 2017-07-18 wiretapping difficulty End-to-End Encryption SIP + DTLS-SRTP (SIP + Datagram Transport Layer Security-SRTP) End-to-End Encryption & Authentication SIP + SRTP + ZRTP Introduction Man-in-the-Middle ZRTP Attacks Conclusion End-to-End Security for Voice Calls Institute of Operating Systems and Computer Networks No End-to-End Security PSTN (Public Switched Telephone Network) SIP + (S)RTP (Session Initiation Protocol + Secure Real-Time Transport Protocol) 2017-07-18 Dominik Schürmann Wiretapping End-to-End Encrypted VoIP Calls Page 2 of 13 wiretapping difficulty End-to-End Encryption & Authentication SIP + SRTP + ZRTP Introduction Man-in-the-Middle ZRTP Attacks Conclusion End-to-End Security for Voice Calls Institute of Operating Systems and Computer Networks No End-to-End Security PSTN (Public Switched Telephone Network) SIP + (S)RTP (Session Initiation Protocol + Secure Real-Time Transport Protocol) End-to-End Encryption SIP + DTLS-SRTP (SIP + Datagram Transport Layer Security-SRTP) 2017-07-18 Dominik Schürmann Wiretapping End-to-End Encrypted VoIP Calls Page 2 of 13 wiretapping difficulty Introduction Man-in-the-Middle ZRTP Attacks Conclusion End-to-End Security for Voice Calls Institute of Operating Systems and Computer Networks No End-to-End Security PSTN (Public Switched Telephone Network) SIP + (S)RTP (Session Initiation Protocol + Secure Real-Time -
FOSDEM 2017 Schedule
FOSDEM 2017 - Saturday 2017-02-04 (1/9) Janson K.1.105 (La H.2215 (Ferrer) H.1301 (Cornil) H.1302 (Depage) H.1308 (Rolin) H.1309 (Van Rijn) H.2111 H.2213 H.2214 H.3227 H.3228 Fontaine)… 09:30 Welcome to FOSDEM 2017 09:45 10:00 Kubernetes on the road to GIFEE 10:15 10:30 Welcome to the Legal Python Winding Itself MySQL & Friends Opening Intro to Graph … Around Datacubes Devroom databases Free/open source Portability of containers software and drones Optimizing MySQL across diverse HPC 10:45 without SQL or touching resources with my.cnf Singularity Welcome! 11:00 Software Heritage The Veripeditus AR Let's talk about The State of OpenJDK MSS - Software for The birth of HPC Cuba Game Framework hardware: The POWER Make your Corporate planning research Applying profilers to of open. CLA easy to use, aircraft missions MySQL Using graph databases please! 11:15 in popular open source CMSs 11:30 Jockeying the Jigsaw The power of duck Instrumenting plugins Optimized and Mixed License FOSS typing and linear for Performance reproducible HPC Projects algrebra Schema Software deployment 11:45 Incremental Graph Queries with 12:00 CloudABI LoRaWAN for exploring Open J9 - The Next Free It's time for datetime Reproducible HPC openCypher the Internet of Things Java VM sysbench 1.0: teaching Software Installation on an old dog new tricks Cray Systems with EasyBuild 12:15 Making License 12:30 Compliance Easy: Step Diagnosing Issues in Webpush notifications Putting Your Jobs Under Twitter Streaming by Open Source Step. Java Apps using for Kinto Introducing gh-ost the Microscope using Graph with Gephi Thermostat and OGRT Byteman. -
Integration of Voice Over IP Services Over Ipv6 Networks
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by UCL Discovery Kirstein, P; Lambrinos, L; (2007) Integrating Voice over IP Services in IPv4 and IPv6 Networks. In: Proceedings of the International Multi-Conference on Computing in the Global Information Technology. IEEE ARTICLE Integrating Voice over IP services in IPv4 and IPv6 networks Lambros Lambrinos Dept.of Communication and Internet studies Cyprus University of Technology Limassol 3603, Cyprus [email protected] Peter Kirstein Department of Computer Science University College London (UCL) Gower Street, London, WC1E 6BT, UK [email protected] Abstract The transition from the current IPv4 network addressing model to the next generation IPv6 network addressing model has always been deemed as a lengthy process. As the deployment of IPv6 infrastructures evolves, interaction with the existing IPv4 networks is unavoidable. This interaction may occur at the network level (simple data pass-through) or at the application level (between IPv6 and IPv4 endpoints). In this paper we concentrate on application level interoperability and select an increasingly popular application: Voice Over IP (VoIP). The use of VoIP technologies is becoming more widespread as end-users and network providers recognise the potential benefits that the usage of the application provides. It is important to provide an environment where IPv4 and IPv6 networks and applications / devices can interoperate in the context of VoIP. This environment is based on an architecture that integrates all the components together (whether they support IPv4 or IPv6 or both) thereby providing ubiquitous access to IP telephony services based on the SIP signaling protocol. -
TECH TOOLS for ACTIVISTS Published : 2012-10-04 License : CC-BY T ABLE of CONT ENT S
TECH TOOLS FOR ACTIVISTS Published : 2012-10-04 License : CC-BY T ABLE OF CONT ENT S Tech Tools For Activism 1 An introduction to this booklet 2 2 Securing your email 4 3 Anonymous Blogs and Websites 7 4 Microblogging Beyond Twitter 9 5 Browsing the Internet 11 6 Organising and Networking Online 14 7 Mobile Phone Security and Android Apps 18 8 Publishing and Networking News 21 9 Producing and Publishing Media to the Internet 23 10 Green Computing 25 11 Hiding & Deleting Things on your PC 27 TECH TOOLS FOR ACTIVISM 1. AN INTRODUCTION TO THIS BOOKLET 2. SECURING YOUR EMAIL 3. ANONYMOUS BLOGS AND WEBSITES 4. MICROBLOGGING BEYOND TWITTER 5. BROWSING THE INTERNET 6. ORGANISING AND NETWORKING ONLINE 7. MOBILE PHONE SECURITY AND ANDROID APPS 8. PUBLISHING AND NETWORKING NEWS 9. PRODUCING AND PUBLISHING MEDIA TO THE INTERNET 10. GREEN COMPUTING 11. HIDING & DELETING THINGS ON YOUR PC 1 1. AN INT RODUCT ION T O T HIS BOOKLET T his booklet will help you to: use email securely publish news and upload media anonymously make your web browsing more anonymous and secure use Facebook and Twitter more securely get organised online without relying on corporate social networking sites use encrypted messaging on mobile phones hide stuff on your computer so it can't be found find a more secure and decentralised replacement for Twitter support free software, open licences and decentralised/ federated communication. Why this booklet is important: This booklet provides an introduction to the effective use of technology for activism, with links to step-by-step guides and further information.