Getting Started with Openbts BUILD OPEN SOURCE MOBILE NETWORKS
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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. -
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. -
Modeling the Use of an Airborne Platform for Cellular Communications Following Disruptions
Dissertations and Theses 9-2017 Modeling the Use of an Airborne Platform for Cellular Communications Following Disruptions Stephen John Curran Follow this and additional works at: https://commons.erau.edu/edt Part of the Aviation Commons, and the Communication Commons Scholarly Commons Citation Curran, Stephen John, "Modeling the Use of an Airborne Platform for Cellular Communications Following Disruptions" (2017). Dissertations and Theses. 353. https://commons.erau.edu/edt/353 This Dissertation - Open Access is brought to you for free and open access by Scholarly Commons. It has been accepted for inclusion in Dissertations and Theses by an authorized administrator of Scholarly Commons. For more information, please contact [email protected]. MODELING THE USE OF AN AIRBORNE PLATFORM FOR CELLULAR COMMUNICATIONS FOLLOWING DISRUPTIONS By Stephen John Curran A Dissertation Submitted to the College of Aviation in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Aviation Embry-Riddle Aeronautical University Daytona Beach, Florida September 2017 © 2017 Stephen John Curran All Rights Reserved. ii ABSTRACT Researcher: Stephen John Curran Title: MODELING THE USE OF AN AIRBORNE PLATFORM FOR CELLULAR COMMUNICATIONS FOLLOWING DISRUPTIONS Institution: Embry-Riddle Aeronautical University Degree: Doctor of Philosophy in Aviation Year: 2017 In the wake of a disaster, infrastructure can be severely damaged, hampering telecommunications. An Airborne Communications Network (ACN) allows for rapid and accurate information exchange that is essential for the disaster response period. Access to information for survivors is the start of returning to self-sufficiency, regaining dignity, and maintaining hope. Real-world testing has proven that such a system can be built, leading to possible future expansion of features and functionality of an emergency communications system. -
Webrtc About
WebRTC About WebRTC provides Real-Time Communications directly from better web browsers and devices without requiring plug-ins such as Adobe Flash nor Silverlight. WebRTC always operates in secure mode.FreeSWITCH provides a WebRTC portal to its public conference bridge to demonstrate the possibilities for handling telephony via a web page; join us for our weekly conference calls. The process for configuring FreeSWITCH with WSS certificates is the same whether for use with classic WebRTC or the FreeSWITCH Verto endpoint. Installation The configuration for Secure Web Sockets is slightly different than for TLS over SIP. This guide covers WSS certificate setup. Debian 7 (Wheezy) Install Debian 7 (Wheezy) minimal. Building FreeSWITCH Building apt-get install git build-essential automake autoconf libtool wget python zlib1g-dev libjpeg-dev libncurses5- dev libssl-dev libpcre3-dev libcurl4-openssl-dev libldns-dev libedit-dev libspeexdsp-dev libspeexdsp-dev libsqlite3-dev apache2 cd /usr/src/ git clone https://freeswitch.org/stash/scm/fs/freeswitch.git cd freeswitch ./bootstrap.sh -j ./configure -C make make install cd-sounds-install cd-moh-install mkdir -p /usr/local/freeswitch/certs edit /usr/local/freeswitch/conf/sip_profiles/internal.xml # Set these params and save the file: <param name="tls-cert-dir" value="/usr/local/freeswitch/certs"/> <param name="wss-binding" value=":7443"/> If behind N.A.T. make sure to set the ext-sip-ip and ext-rtp-ip in vars.xml to the public IP address of your FreeSWITCH. If talking to clients both inside and outside the N.A.T. you must set the local-network-acl rfc1918.auto, and prefix the ext-sip-ip and ext-rtp-ip to autonat:X.X. -
A Survey of Open Source Products for Building a SIP Communication Platform
Hindawi Publishing Corporation Advances in Multimedia Volume 2011, Article ID 372591, 21 pages doi:10.1155/2011/372591 Research Article A Survey of Open Source Products for Building a SIP Communication Platform Pavel Segec and Tatiana Kovacikova Department of InfoCom Networks, University of Zilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia Correspondence should be addressed to Tatiana Kovacikova, [email protected] Received 29 July 2011; Revised 31 October 2011; Accepted 15 November 2011 Academic Editor: T. Turletti Copyright © 2011 P. Segec and T. Kovacikova. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Session Initiation Protocol (SIP) is a multimedia signalling protocol that has evolved into a widely adopted communication standard. The integration of SIP into existing IP networks has fostered IP networks becoming a convergence platform for both real- time and non-real-time multimedia communications. This converged platform integrates data, voice, video, presence, messaging, and conference services into a single network that offers new communication experiences for users. The open source community has contributed to SIP adoption through the development of open source software for both SIP clients and servers. In this paper, we provide a survey on open SIP systems that can be built using publically available software. We identify SIP features for service deve- lopment and programming, services and applications of a SIP-converged platform, and the most important technologies support- ing SIP functionalities. We propose an advanced converged IP communication platform that uses SIP for service delivery. -
Freeswitch 1.6 Cookbook
www.itbook.store/books/9781785280917 FreeSWITCH 1.6 Cookbook Over 45 practical recipes to empower you with the latest FreeSWITCH 1.6 features Anthony Minessale II Michael S Collins Giovanni Maruzzelli BIRMINGHAM - MUMBAI www.itbook.store/books/9781785280917 FreeSWITCH 1.6 Cookbook Copyright © 2015 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the authors, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: February 2012 Second Edition: July 2015 Production reference: 1170715 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-78528-091-7 www.packtpub.com www.itbook.store/books/9781785280917 Credits Authors Copy Editors Anthony Minessale II Miss Yesha G Michael S Collins Vikrant -
Openbts Application Suite User Manual
OpenBTS Application Suite Release 4.0 User Manual Revision date: April 15, 2014 Copyright 2011-2014 Range Networks, Inc. This document is distributed and licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. Contents 1 General Information 7 1.1 Scope and Audience.........................................8 1.2 License and Copyright........................................8 1.3 Disclaimers..............................................8 1.4 Source Code Availability....................................... 10 1.5 Abbreviations............................................ 11 1.6 References.............................................. 12 1.7 Contact Information & Support................................... 13 2 Introduction to OpenBTS Application Suite 14 2.1 Key Programs............................................ 15 2.2 Network Organization........................................ 16 3 Getting to Know Your OpenBTS System 19 3.1 Accessing the System........................................ 19 3.2 Starting and Stopping Applications................................. 20 3.3 OpenBTS Command Line Interface (CLI)............................. 20 3.4 Using the OpenRANUI....................................... 24 3.5 Databases.............................................. 25 3.6 Folder Structure........................................... 25 3.7 Logging............................................... 26 4 OpenBTS Data Tables and Structures 27 4.1 Manipulating OpenBTS Databases................................. 27 4.2 The Configuration Table..................................... -
Introducción a Linux Equivalencias Windows En Linux Ivalencias
No has iniciado sesión Discusión Contribuciones Crear una cuenta Acceder Página discusión Leer Editar Ver historial Buscar Introducción a Linux Equivalencias Windows en Linux Portada < Introducción a Linux Categorías de libros Equivalencias Windows en GNU/Linux es una lista de equivalencias, reemplazos y software Cam bios recientes Libro aleatorio análogo a Windows en GNU/Linux y viceversa. Ayuda Contenido [ocultar] Donaciones 1 Algunas diferencias entre los programas para Windows y GNU/Linux Comunidad 2 Redes y Conectividad Café 3 Trabajando con archivos Portal de la comunidad 4 Software de escritorio Subproyectos 5 Multimedia Recetario 5.1 Audio y reproductores de CD Wikichicos 5.2 Gráficos 5.3 Video y otros Imprimir/exportar 6 Ofimática/negocios Crear un libro 7 Juegos Descargar como PDF Versión para im primir 8 Programación y Desarrollo 9 Software para Servidores Herramientas 10 Científicos y Prog s Especiales 11 Otros Cambios relacionados 12 Enlaces externos Subir archivo 12.1 Notas Páginas especiales Enlace permanente Información de la Algunas diferencias entre los programas para Windows y y página Enlace corto GNU/Linux [ editar ] Citar esta página La mayoría de los programas de Windows son hechos con el principio de "Todo en uno" (cada Idiomas desarrollador agrega todo a su producto). De la misma forma, a este principio le llaman el Añadir enlaces "Estilo-Windows". Redes y Conectividad [ editar ] Descripción del programa, Windows GNU/Linux tareas ejecutadas Firefox (Iceweasel) Opera [NL] Internet Explorer Konqueror Netscape / -
LINUX UNTERWEGS Laptop Im Gepäck: Reise Und Arbeit LINUX UNTERWEGS LINUX Als Digitaler Nomade Kombinieren S
Lin-Habu: Professionelle COMMUNITY-EDITIONEskil: Grafisches Diff für S. 54 Buchhaltung im Test S. 64 Dateien und Verzeichnisse Frei kopieren und beliebig weiter verteilen ! 05.2017 05.2017 Routen planen und dokumentieren, Reisedaten auswerten, IT-Tipps für Globetrotter LINUX UNTERWEGS LINUX UNTERWEGS Laptop im Gepäck: Reise und Arbeit LINUX UNTERWEGS LINUX als digitaler Nomade kombinieren S. 16 Routino: Strecken offline planen mit OSM-Daten S. 30 QMapShack: GPS-Tracks komfortabel aufbereiten S. 24 Fahrtenbuch: Grafische Reiseauswertung mit Python S. 34 Drucktexte automatisiert digitalisieren S. 84 Perfektes Duo zur Texterkennung: Tipparbeit sparen mit der freien OCR- Engine Tesseract und dem darauf abgestimmten grafischen Frontend GImageReader Audiodaten editieren S. 58 Winzling KolibriOS S. 72 Bequemer als Audacity, simpler als KWave: Klein, aber oho: Unixoider grafischer Schnell ans Ziel mit dem Soundeditor Eko Desktop mit minimalem Footprint Top-Distris • Eko • Eskil • Kodachi • KolibriOS • Lin-Habu • Pi Zero W • Texterkennung • Unbound • VeraPDF • VeraPDF • Unbound Texterkennung W • • Eko Eskil Kodachi KolibriOS Lin-Habu Pi Zero auf zwei Heft-DVDs ESKIL • KOLIBRIOS • LIN-HABU • PI ZERO W • UNBOUND • VERAPDF • • VERAPDF • UNBOUND • W PI ZERO • LIN-HABU • KOLIBRIOS • ESKIL EUR 8,50 EUR 9,35 sfr 17,00 EUR 10,85 EUR 11,05 EUR 11,05 2 DVD-10 05 www.linux-user.de Deutschland Österreich Schweiz Benelux Spanien Italien 4 196067 008502 05 Editorial Dreckschleudern Sehr geehrte Leserinnen und Leser, zu den Modesünden meiner Jugend ge lich des jeweiligen Sachgebietes“. Ad hörten Cowboystiefel und Bomber blocker dagegen seien schuld am Nieder jacken. Derart ausstaffiert, bewies man gang der Qualitätsmedien, und wer keine in den späten 1970ern Lässigkeit, Ele OnlineWerbung ansehe, der informiere ganz und Männlichkeit – glaubten wir sich dann „durch Blogger ohne journalis damals zumindest. -
Cost Effective Cellular Connectivity in Rural Areas
VillageCell: Cost Effective Cellular Connectivity in Rural Areas Abhinav Anand, Veljko Pejovic, David L. Johnson, Elizabeth M. Belding University of California, Santa Barbara [email protected], {veljko, davidj, ebelding}@cs.ucsb.edu ABSTRACT need for real-time voice communication. In addition, even Mobile telephony brings clear economic and social benefits more than in the developed world, voice communication in to its users. As handsets have become more affordable, own- the developing world is a strong enabler of political free- ership has reached staggering numbers, even in the most re- dom [18], economic growth [3] and efficient health care [24]. mote areas of the world. However, network coverage is often The unique disposition of African villages, characterized lacking in low population densities and low income rural ar- by low population density and low-income communities, along eas of the developing world, where big telecoms often defer with the specific cultural context represented by a mix of from deploying expensive infrastructure. To solve this cov- languages and ethnicities, and the chiefdom-based political erage gap, we propose VillageCell, a low-cost alternative to structure, impact both the need for, and the adoption of high-end cell phone networks. VillageCell relies on software voice communication. To better understand the way ru- defined radios and open-source solutions to provide free local ral Africans indigenize voice communication tools, we con- and cheap long-distance communication for remote regions. ducted a survey of two villages in South Africa and Zambia. Our architecture is simple and easy to deploy, yet robust The specific villages were chosen because they are connected and requires no modification to GSM handsets. -
By CARLTON A. THOMPSON a DISSERTATION
A DESIGN AND PERFORMANCE STUDY OF A DISTRIBUTED IP-BASED TELECOMMUNICATION SYSTEM (D-IPTS) By CARLTON A. THOMPSON A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY UNIVERSITY OF FLORIDA 2016 © 2016 Carlton A. Thompson 2 To my mother Hyacinth Thompson and to the memory of my father Carlton Thompson, for always supporting me during my studies and work. 3 ACKNOWLEDGMENTS The path to PhD has been very challenging and I have achieved a milestone in my career. I learned a lot about the field of IP telecommunications, peformance analysis, and associated qualitative research methods. This dissertation would not have been written without the help of certain individuals. I would like to extend my gratitude towards my advisor Dr. Latchman and co-advisor Dr. McNair. They helped me with the selection of my topic and provided guidance during the writing of my dissertation. Their encouragement and insights have always been inspiring. In addition, none of this could have been possible without my family and loved ones providing their continuous support during my various course studies. Also, I would like to thank my friends and colleagues from the Electrical and Computer Engineering Department at the University of Florida. Finally, I would like to thank Texas Instruments ™ for providing financial support for this work. 4 TABLE OF CONTENTS page ACKNOWLEDGMENTS..................................4 LIST OF TABLES......................................9 LIST OF FIGURES..................................... 10 LIST OF ABBREVIATIONS ................................ 14 ABSTRACT......................................... 17 CHAPTER 1 INTRODUCTION .................................... 19 Motivation........................................ 20 Voice Networks..................................... 21 Traditional Telecommunications Networks.................. -
The Openbts Project
The OpenBTS Project David A. Burgess, Harvind S. Samra Kestrel Signal Processing, Inc. Fairfield, California October 31, 2008 2 Chapter 1 About The Project 1.1 What is the OpenBTS Project? The OpenBTS Project is an effort to construct an open-source Unix application that uses the Universal Software Radio Peripheral (USRP) to present a GSM air interface (“Um”) to standard GSM handset and uses the Asterisk VoIP PBX to connect calls. This is in fact very different from a conventional GSM BTS, which is a dumb device that is managed externally by a basestation controller (BSC) and connects calls in a remote mobile switching center (MSC). Because of this important architectural difference, the end product of this project is better referred to as an access point, even though the project is called “OpenBTS”. 1.2 Why Build an Open Source GSM Stack? The combination of the ubiquitous GSM air interface with VoIP backhaul could form the basis of a new type of cellular network that could be deployed and operated at substantially lower cost than existing technologies. Since these new hybrid networks are not readily compatible with legacy networks, and since radical two-tier pricing would be disruptive for existing carriers, we are not likely to see this kind of innovation from the conventional telecom community. This is the primary motivation for starting this project: a vision of truly universal telephone service. The inspiration for this project came from a simultaneous recognition of these elements from prior experience1 with GSM, software radios, VoIP and sustainable power systems: • The USRP can be readily adapted as a GSM transceiver and the hardware can be reworked to give a carrier-grade radio for use in a software BTS.