Voip in Mobile Phones
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Internet Telephony Over Wireless Links
Internet Telephony over Wireless Links vorgelegt von Diplom-Ingenieur Christian Hoene von der Fakult¨at IV - Elektrotechnik und Informatik der Technischen Universit¨at Berlin zur Erlangung des akademischen Grades Doktor der Ingenieurwissenschaften – Dr.-Ing. – genehmigte Dissertation Promotionsausschuss: Vorsitzender: Prof. Dr. Heiß Berichter: Prof. Dr.-Ing. Wolisz Berichter: Prof. Dr.-Ing. Steinmetz Berichter: Prof. Dr.-Ing. Sikora Tag der wissenschaftlichen Aussprache: 16. Dezember 2005 Berlin 2006 D83 c 2005-2006 by Christian Hoene Jahnstr. 22 72144 Dußlingen Germany [email protected] As a small child, you never spoke that clearly, no wonder that you want to improve the speech perceptibility. My mother, after hearing my thesis topic. Abstract This thesis presents algorithms to enhance the efficiency of packetized, interactive speech communication over wireless networks. The results achieved are the following: We present an improved approach to assess the quality of voice transmissions in IP-based communication networks. We combined the ITU E-Model, the ITU PESQ algorithm, and various codec and playout schedulers to analyse VoIP traces. Parts of this algorithm have been included in ITU standards. By using this assessment approach we derived design guidelines for application and data-link protocols. Also, we developed a quality model to parametrise adaptive VoIP applications. Later results received a best-paper award. If highly compressed packetized speech is transported over packet networks, losses of in- dividual packets impair the perceptual quality of the received stream differently, depending on the content and context of the lost packets. We introduce the idea of the Importance of Individual Packets, which is defined by the impact of VoIP packet loss on speech quality. -
An Architecture for a Next Generation Voip Transmission Systems
An Architecture for a Next Generation VoIP Transmission Systems Christian Hoene1, Kai Clüver2, Jan Weil2 1Wilhelm-Schickard-Institute, University of Tübingen, Germany 2Fachgebiet Nachrichtenübertragung, Technical University of Berlin, Germany 1.1 Abstract Packetized speech transmission systems implemented with Voice over IP are gaining momentum against the traditional circuit switched systems despite the fact that packet switched VoIP is two to three times less efficient then its circuit switched counter part. At the time same time it is supporting just a rather bad “toll” quality. We believe that it is time to for a new architecture developed from the scratch. An architecture that includes an Internet enabled speech codec and its transport system. This architecture manages the perceptual service quality while using the available transmission resources to its best. The transmission of speech is managed and controlled in respect to its speech quality, month-to-ear delay, bit-rate, frame-rate, and loss robustness. Beside the architecture, we describe the requirements for the Internet speech codec and its transport protocol and present the description of an interface between speech codec and transport protocol. 2 Introduction Internet Telephony is a mature technology that has gained increasing popularity against the traditional PSTN systems. Voice over IP (VoIP) is replacing the PSTN service on broadband access networks such as cable modems and DSL, as it is more cost efficient to use IP broadband access also for Internet telephony. In addition, future wireless broadband access networks such as the 3GPP’s Long Term Evaluation (LTE) radio technology will support telephone services only via VoIP [1]. -
ATA User's Manual
VoIP Analog Telephone Adapter VIP-156 VIP-157 User’s manual 1 Copyright Copyright (C) 2006 PLANET Technology Corp. All rights reserved. The products and programs described in this User’s Manual are licensed products of PLANET Technology, This User’s Manual contains proprietary information protected by copyright, and this User’s Manual and all accompanying hardware, software, and documentation are copyrighted. No part of this User’s Manual may be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form by any means by electronic or mechanical. Including photocopying, recording, or information storage and retrieval systems, for any purpose other than the purchaser's personal use, and without the prior express written permission of PLANET Technology. Disclaimer PLANET Technology does not warrant that the hardware will work properly in all environments and applications, and makes no warranty and representation, either implied or expressed, with respect to the quality, performance, merchantability, or fitness for a particular purpose. PLANET has made every effort to ensure that this User’s Manual is accurate; PLANET disclaims liability for any inaccuracies or omissions that may have occurred. Information in this User’s Manual is subject to change without notice and does not represent a commitment on the part of PLANET. PLANET assumes no responsibility for any inaccuracies that may be contained in this User’s Manual. PLANET makes no commitment to update or keep current the information in this User’s Manual, and reserves the right to make improvements to this User’s Manual and/or to the products described in this User’s Manual, at any time without notice. -
Enterprise Solutions Mary Mcdowell
MaryMary McDowellMcDowell Enterprise Solutions Agenda • Building momentum • The market opportunity • Enterprise Solutions strategy • Nokia for Business • Nokia and Intellisync • Go to market • Measuring success Enterprise Solutions Building Momentum Strengthening Expanding New Products Partner Opportunities Relationships Our Market Space VoiceVoice ApplicationsApplications DataData NetworkingNetworking ApplicationsApplications MobilewareMobileware SecuritySecurity MobileMobile OperatorsOperators EnterpriseEnterprise DataData DevicesDevices Desk DevicesDevices Desk PhonesPhones (PC/PDA)(PC/PDA) Our Market Space VoiceVoice ApplicationsApplications DataData NetworkingNetworking NokiaNokia FocusFocus ApplicationsApplications MobilewareMobileware SecuritySecurity MobileMobile OperatorsOperators EnterpriseEnterprise DataData DevicesDevices Desk DevicesDevices Desk PhonesPhones (PC/PDA)(PC/PDA) Nokia: Trusted Provider of Mobility in the Enterprise 2009 Market 2009 Aspiration #1#1 providerprovider ofof EnterpriseEnterprise corporatecorporate devices:devices: 18.118.1 b€b€ DevicesDevices shareshare consistentconsistent withwith globalglobal NokiaNokia shareshare #1#1 providerprovider ofof MobilewareMobileware 6.86.8 b€b€ mobilewaremobileware #2#2 providerprovider ofof firewallfirewall SecuritySecurity 4.64.6 b€b€ && securitysecurity appliancesappliances CAGR 2005/09 27% * Mobileware= Middleware + Applications Enterprise Solutions Strategy toto anyany corporatecorporate ConnectingConnecting peoplepeople overover anyany networknetwork applicationapplication -
VOICE OVER INTERNET PROTOCOL (Voip)
S. HRG. 108–1027 VOICE OVER INTERNET PROTOCOL (VoIP) HEARING BEFORE THE COMMITTEE ON COMMERCE, SCIENCE, AND TRANSPORTATION UNITED STATES SENATE ONE HUNDRED EIGHTH CONGRESS SECOND SESSION FEBRUARY 24, 2004 Printed for the use of the Committee on Commerce, Science, and Transportation ( U.S. GOVERNMENT PUBLISHING OFFICE 22–462 PDF WASHINGTON : 2016 For sale by the Superintendent of Documents, U.S. Government Publishing Office Internet: bookstore.gpo.gov Phone: toll free (866) 512–1800; DC area (202) 512–1800 Fax: (202) 512–2104 Mail: Stop IDCC, Washington, DC 20402–0001 VerDate Nov 24 2008 14:00 Dec 07, 2016 Jkt 075679 PO 00000 Frm 00001 Fmt 5011 Sfmt 5011 S:\GPO\DOCS\22462.TXT JACKIE SENATE COMMITTEE ON COMMERCE, SCIENCE, AND TRANSPORTATION ONE HUNDRED EIGHTH CONGRESS SECOND SESSION JOHN MCCAIN, Arizona, Chairman TED STEVENS, Alaska ERNEST F. HOLLINGS, South Carolina, CONRAD BURNS, Montana Ranking TRENT LOTT, Mississippi DANIEL K. INOUYE, Hawaii KAY BAILEY HUTCHISON, Texas JOHN D. ROCKEFELLER IV, West Virginia OLYMPIA J. SNOWE, Maine JOHN F. KERRY, Massachusetts SAM BROWNBACK, Kansas JOHN B. BREAUX, Louisiana GORDON H. SMITH, Oregon BYRON L. DORGAN, North Dakota PETER G. FITZGERALD, Illinois RON WYDEN, Oregon JOHN ENSIGN, Nevada BARBARA BOXER, California GEORGE ALLEN, Virginia BILL NELSON, Florida JOHN E. SUNUNU, New Hampshire MARIA CANTWELL, Washington FRANK R. LAUTENBERG, New Jersey JEANNE BUMPUS, Republican Staff Director and General Counsel ROBERT W. CHAMBERLIN, Republican Chief Counsel KEVIN D. KAYES, Democratic Staff Director and Chief Counsel GREGG ELIAS, Democratic General Counsel (II) VerDate Nov 24 2008 14:00 Dec 07, 2016 Jkt 075679 PO 00000 Frm 00002 Fmt 5904 Sfmt 5904 S:\GPO\DOCS\22462.TXT JACKIE C O N T E N T S Page Hearing held on February 24, 2004 ...................................................................... -
Authenticall: Efficient Identity and Content Authentication for Phone
AuthentiCall: Efficient Identity and Content Authentication for Phone Calls Bradley Reaves, North Carolina State University; Logan Blue, Hadi Abdullah, Luis Vargas, Patrick Traynor, and Thomas Shrimpton, University of Florida https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presentation/reaves This paper is included in the Proceedings of the 26th USENIX Security Symposium August 16–18, 2017 • Vancouver, BC, Canada ISBN 978-1-931971-40-9 Open access to the Proceedings of the 26th USENIX Security Symposium is sponsored by USENIX AuthentiCall: Efficient Identity and Content Authentication for Phone Calls Bradley Reaves Logan Blue Hadi Abdullah North Carolina State University University of Florida University of Florida reaves@ufl.edu bluel@ufl.edu hadi10102@ufl.edu Luis Vargas Patrick Traynor Thomas Shrimpton University of Florida University of Florida University of Florida lfvargas14@ufl.edu [email protected]fl.edu [email protected]fl.edu Abstract interact call account owners. Power grid operators who detect phase synchronization problems requiring Phones are used to confirm some of our most sensi- careful remediation speak on the phone with engineers tive transactions. From coordination between energy in adjacent networks. Even the Federal Emergency providers in the power grid to corroboration of high- Management Agency (FEMA) recommends that citizens value transfers with a financial institution, we rely on in disaster areas rely on phones to communicate sensitive telephony to serve as a trustworthy communications identity information (e.g., social security numbers) to path. However, such trust is not well placed given the assist in recovery [29]. In all of these cases, participants widespread understanding of telephony’s inability to depend on telephony networks to help them validate provide end-to-end authentication between callers. -
THE BENEFITS of VOIP for SMALL- to MEDIUM-SIZED BUSINESSES 3 Other Considerations There Are Many Costs to Consider for Expanding
The Benefits of VoIP for Small- to Medium-Sized Businesses How utilizing the latest VoIP technologies can reduce maintenance costs while contributing to improved retention and growth within a business Over the past several years, we have seen the impact of mobile technology in our personal lives and how we shop for products and services. While businesses continue to make improvements to their websites, customer service Gone are the days of management platforms, and accounting and operational depending on a single software, their phone systems are overlooked for operational strand of copper wire efficiencies. This white paper examines why businesses need for your entire business to consider upgrading their communication systems to VoIP, communications. With and how utilizing the latest VoIP technologies can reduce hosted voice your maintenance costs while contributing to improved retention business will never miss and growth within a business. an opportunity or any client communication. Existing Phone Systems Hosted Voice is scalable to your company’s Businesses typically invested in a traditional phone system through the purchase of growing needs, without phone lines from their local telecom representative, and then purchasing a physical phone management system that was mounted in a closet near the company servers. To make downtime or anyone extension changes, a tech from the phone company or an IT network engineer would noticing that changes physically re-route the phone wire from one point on the “punch” board to another. This took have been made. It’s time and scheduling to move the phone and have a person available to perform the action. -
Nokia E61 User Guide
Nokia E61 User Guide 9246608 Issue 2 DECLARATIONNokia OF CONFORMITY We, NOKIA CORPORATION declare under our sole responsibility that the product RM-89 is in conformity with the provisions of the following Council Directive: 1999/5/EC. A copy of the Declaration of Conformity can be found from www.nokia.com/phones/declaration_of_conformity/. Nokia The crossed-out wheeled bin means that within the European Union the product must be taken to separate collection at the product end-of-life. This applies to your device but also to any enhancements marked with this symbol. Do not dispose of these products as unsorted municipal waste. Copyright © 2006 Nokia. All rights reserved. Reproduction, transfer, distribution or storage of part or all of the contents in this document in any form without the prior written permission of Nokia is prohibited. Nokia, Nokia Connecting People, Xpress-on and Pop-Port are trademarks or registered trademarks of Nokia Corporation. Other product and company names mentioned herein may be trademarks or tradenames of their respective owners. Nokia tune is a sound mark of Nokia Corporation. This product includes software licensed from Symbian Software Ltd (c) 1998-2004. Symbian and Symbian OS are trademarks of Symbian Ltd. Includes RSA BSAFE cryptographic or security protocol software from RSA Security. Java and all Java-based marks are trademarks or registered trademarks of Sun Microsystems, Inc. This product is licensed under the MPEG-4 Visual Patent Portfolio License (i) for personal and noncommercial use in connection with information which has been encoded in compliance with the MPEG-4 Visual Standard by a consumer engaged in a personal and noncommercial activity and (ii) for use in connection with MPEG-4 video provided by a licensed video provider. -
LNS Is a Game Changer ������������������������������������������������7
MOBILE : MOBILE MESSAGING EXCHANGE EXTENDING THE REACH OF TWO-WAY TEXT MESSAGING AND VOICE MOBILE : MOBILE MESSAGING EXCHANGE TABLE OF CONTENTS The background . 3 The problem . 3 The options . 4 A smarter, more powerful solution . 5 The opportunity . 6 Why Tata Communications’ mobile LNS is a game changer . 7 Creating a New World of Communication™ through innovation . 7 For more information, visit us at www.tatacommunications.com. © 2015 Tata Communications. All Rights Reserved. TATA COMMUNICATIONS and TATA are trademarks of Tata Sons Limited in certain countries. MOBILE : MOBILE MESSAGING EXCHANGE THE BACKGROUND There are two key conditions necessary for communications networks to function efficiently. First, as many end points as possible should be connected to the network. Second, multiple networks must be able to connect with each other. Global, inter-connected communications networks enable multiple individuals to inter-connect. Generally, their connections can be completed regardless of the originating or terminating network, its geography and the type of handset used at both ends of the link. The arrival of new communications methods enabled by over the top (OTT) service providers challenges this model. These services take a more ‘closed community’ approach that does not pro- vide for connectivity across the broader global communications environment. THE PROBLEM These OTT-enabled services have resulted in communication options that are more fragmented than they were ten years ago – with individuals often communicating within a closed community of similarly connected users. The fact that OTT apps for voice and messaging services are generally free to use is an attractive proposition. However, the service is only free if one user is sending a message or having a voice conversation with another user via the same application. -
PRESS RELEASE Nokia Reports Fourth Quarter 2005 Net Sales Of
PRESS RELEASE 1 (24) January 26, 2006 Nokia reports fourth quarter 2005 net sales of EUR 10.3 billion, EPS of EUR 0.25 Nokia reports 2005 net sales of EUR 34.2 billion, EPS of EUR 0.83 Device market share gains in Q4 and 2005 drive 16% annual sales growth and 20% EPS growth Nokia’s Board of Directors will propose a dividend of EUR 0.37 per share for 2005 (EUR 0.33 per share for 2004) NOKIA Q4 and 2005 EUR million Q4/2005 Q4/2004 Change 2005 2004 Change (*revised) (%) (*revised) (%) Net sales 10 333 9 456 9 34 191 29 371 16 Mobile Phones 6 217 5 871 6 20 811 18 521 12 Multimedia 2 024 1 272 59 5 981 3 676 63 Enterprise Solutions 153 295 -48 861 839 3 Networks 1 951 2 031 -4 6 557 6 431 2 Operating profit 1 368 1 450 -6 4 639 4 326 7 Mobile Phones 1 060 1 107 -4 3 598 3 786 -5 Multimedia 310 168 85 836 175 Enterprise Solutions -136 -44 -258 -210 Networks 268 306 -12 855 884 -3 Common Group Expenses -134 -87 -392 -309 Operating margin (%) 13.2 15.3 13.6 14.7 Mobile Phones (%) 17.1 18.9 17.3 20.4 Multimedia (%) 15.3 13.2 14.0 4.8 Enterprise Solutions (%) -88.9 -14.9 -30.0 -25.0 Networks (%) 13.7 15.1 13.0 13.7 Financial income and expenses 78 116 -33 322 405 -20 Profit before tax and minority interests 1 453 1 556 -7 4 971 4 705 6 Net profit 1 073 1 083 -1 3 616 3 192 13 EPS, EUR Basic 0.25 0.24 4 0.83 0.69 20 Diluted 0.25 0.24 4 0.83 0.69 20 All reported Q4 and 2005 figures can be found in the tables on pages (10-13) and (19-23) SPECIAL ITEMS Fourth quarter 2005 special items - EUR 29 million charge for Enterprise Solutions restructuring -
FCC 11-107.Pdf
Federal Communications Commission FCC 11-107 Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of ) ) Amending the Definition of Interconnected VoIP ) GN Docket No. 11-117 Service in Section 9.3 of the Commission’s Rules ) ) PS Docket No. 07-114 Wireless E911 Location Accuracy Requirements ) ) WC Docket No. 05-196 E911 Requirements for IP-Enabled Service ) Providers ) ) NOTICE OF PROPOSED RULEMAKING, THIRD REPORT AND ORDER, AND SECOND FURTHER NOTICE OF PROPOSED RULEMAKING Adopted: July 12, 2011 Released: July 13, 2011 Comment Date: [60 days after publication in the Federal Register] Reply Comment Date: [90 days after publication in the Federal Register] By the Commission: Chairman Genachowski and Commissioners Copps, McDowell, and Clyburn issuing separate statements. TABLE OF CONTENTS Heading Paragraph # I. INTRODUCTION.................................................................................................................................. 1 II. BACKGROUND.................................................................................................................................... 5 III. THIRD REPORT AND ORDER ......................................................................................................... 13 A. Unitary Location Accuracy Standard............................................................................................. 13 1. Outdoor Location Accuracy Testing ....................................................................................... 24 2. Legal Authority -
IA XIV-2.V20.Indd 46 2/8/07 1:42:24 PM You Can Implement a Hummingbird in a Matter of Hours on the Materials in Order to Design New Applications on Any Wi-Fi Phone
LARS ERIK HOLMQUIST [email protected] E G D Mobile 2.0 E By now no one can have failed to notice the latest There are some interesting parallels between E hype: Web 2.0. Everybody is on Flickr and MySpace, Web 2.0 and Mobile 2.0. Both make use of a wide- H blogging away and running their lives through Google’s spread, standardized platform: In Web 2.0 this is the T map and calendar services. According to Web 2.0 browser; in Mobile 2.0, the mobile phone. Both take stalwart Wikipedia, the term refers to “a supposed advantage of connections between people. In Web 2.0 N second generation of Internet-based services such this means everyone on the Internet. In Mobile 2.0 the O as social-networking sites, wikis, communication value of this connectivity is determined by the mobile tools, and folksonomies that setting, shared locale, shared let people collaborate and share context, shared history, and so information online in previously on. Rather than connecting with unavailable ways.” It also implies anyone on the Net, it can be accessing services through a more useful to find someone unified, distributed interface i. who is in the same place right e., Web browsers. In fact, what now, or who was here two hours the user sees often looks just ago, or who is in a similar place like a stand-alone application, somewhere else in the world. except that it runs in a browser Finally, just as Web 2.0 services window. Figure 1. The Hummingbird was an early are aggregating, connecting, One device that often comes Mobile 2.0 device that had to be constructed massaging, and repurposing with a Web browser is the mobile from scratch.