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IK2554 Practical Voice Over IP (Voip): SIP and Related Protocols Fall 2011, Period 1 Lecture Notes of G

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IK2554 Practical Voice Over IP (Voip): SIP and Related Protocols Fall 2011, Period 1 Lecture Notes of G IK2554 Practical Voice Over IP (VoIP): SIP and related protocols Fall 2011, Period 1 Lecture notes of G. Q. Maguire Jr. For use in conjunction with : Henry Sinnreich and Alan B. Johnston, Internet Communications Using SIP: Delivering VoIP and Multimedia KTH Information and Services with Session Initiation Protocol, 2nd Edition, Wiley, Communication Technology August 2006, ISBN: 0-471-77657-2. © 2004-2011 G.Q.Maguire Jr. All rights reserved. No part of this course may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without written permission of the author. Last modified: 2011.07.28:14:20 Maguire Cover.fm Total pages: 1 [email protected] 2011.07.28 Module 1: Introduction........................................................................... 34 Welcome to the course! .......................................................................... 35 Staff Associated with the Course............................................................ 36 Instructor (Kursansvarig) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36 Goals, Scope and Method....................................................................... 37 Goals of the Course - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37 Scope and Method - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37 Learning Outcomes................................................................................. 38 Prerequisites............................................................................................ 40 Contents .................................................................................................. 41 Topics ..................................................................................................... 42 Examination requirements...................................................................... 43 Grades: A..F (ECTS grades)................................................................... 44 Project..................................................................................................... 46 Assignment Registration and Report...................................................... 47 Literature................................................................................................. 49 Observe proper academic ethics and properly cite your sources! .......... 50 Ethics, Rights, and Responsibilities ....................................................... 51 Maguire 2 of 33 [email protected] 2011.08.23 Practical Voice Over IP (VoIP): SIP and related protocols Lecture Plan............................................................................................ 52 Voice over IP (VoIP).............................................................................. 53 Potential Networks ................................................................................. 54 Internetworking....................................................................................... 55 VoIP a major market............................................................................... 56 Cumulative number of Cisco IP phones sold ......................................... 57 Handsets.................................................................................................. 58 VoIP Headsets ........................................................................................ 59 VoIP Chipsets ......................................................................................... 60 Deregulation ⇒ New operators ............................................................ 61 VoIP service providers ........................................................................... 62 Deregulation ⇒ New Suppliers............................................................ 63 Let them fail fast!.................................................................................... 64 Latency ................................................................................................... 65 VoIP Modes of Operation....................................................................... 66 IP based data+voice infrastructure ......................................................... 67 Voice Gateway........................................................................................ 68 Maguire 3 of 33 [email protected] 2011.08.23 Practical Voice Over IP (VoIP): SIP and related protocols Home Telephony Voice Gateway........................................................... 69 Voice over IP (VoIP) Gateways ............................................................. 70 Voice representation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 70 Signaling - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 71 Fax Support - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 71 Management- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 71 Compatibility - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 72 Cisco’s Voice Over IP ............................................................................ 73 Intranet Telephone System ..................................................................... 76 Wireless LANs........................................................................................ 77 Femto cell and UMA .............................................................................. 78 VoIP vs. traditional telephony ................................................................ 79 Economics .............................................................................................. 80 VoIP vs. traditional telephony ................................................................ 81 Patents..................................................................................................... 82 Deregulation ⇒ Trends ........................................................................ 84 Carriers offering VoIP ............................................................................ 85 MCI Connection ..................................................................................... 86 Previously - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 86 After convergence - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 86 Maguire 4 of 33 [email protected] 2011.08.23 Practical Voice Over IP (VoIP): SIP and related protocols Level 3 Communications Inc.................................................................. 87 TeliaSonera Bredbandstelefoni............................................................... 88 Emulating the PSTN............................................................................... 89 Calling and Called Features.................................................................... 91 Beyond the PSTN: Presence & Instant Messaging................................. 92 Presence-Enabled Services ..................................................................... 93 Three major alternatives for VoIP .......................................................... 94 Negatives ................................................................................................ 95 Deregulation ⇒ New Regulations........................................................ 96 Regulations in Sweden ........................................................................... 97 Programmable “phone” .......................................................................... 98 Conferences ............................................................................................ 99 Not with out problems .......................................................................... 100 Seven Myths About Voice over IP[19] ................................................ 101 S adoption curve + shut-down .............................................................. 102 References and Further Reading........................................................... 103 Acknowledgements............................................................................... 109 Maguire 5 of 33 [email protected] 2011.08.23 Practical Voice Over IP (VoIP): SIP and related protocols Module 2: VoIP details......................................................................... 110 Traditional Telecom vs. Datacom......................................................... 111 VoIP details: Protocols and Packets ..................................................... 112 RTP and H.323 for IP Telephony ........................................................ 113 RTP, RTCP, and RTSP......................................................................... 114 Real-Time Delivery .............................................................................
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