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Voip Hacks by Theodore Wallingford VoIP Hacks By Theodore Wallingford ............................................... Publisher: O'Reilly Pub Date: December 2005 ISBN: 0-596-10133-3 Pages: 326 Table of Contents | Index 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. VoIP Hacks By Theodore Wallingford ............................................... Publisher: O'Reilly Pub Date: December 2005 ISBN: 0-596-10133-3 Pages: 326 Table of Contents | Index Copyright Credits About the Author Contributors Acknowledgments Preface Why VoIP Hacks? How This Book Is Organized Using Code Examples Chapter 1. Broadband VoIP Services Section 1.1. Hacks 17: Introduction Section 1.2. VoIP-Based Phone Service Providers Hack 1. Get Connected Hack 2. Use Pure VoIP Dialing with Your TSP Hack 3. Wire Your House Phones for VoIP Hack 4. Use a Softphone with a VoIP TSP Hack 5. Prioritize Packets to Improve Quality Hack 6. Got 911? Hack 7. Update Your VoIP ATA Firmware Chapter 2. Desktop Telephony Section 2.1. Hacks 827: Introduction Hack 8. Access Next-Gen Voice Features Hack 9. Track Vonage Account Info on Your Desktop Hack 10. Pick a Desktop VoIP Client Hack 11. Sound Like Darth Vader While You VoIP Hack 12. Grow Your Social Network with Gizmo Hack 13. Record VoIP Calls on Your Windows PC Hack 14. Handle Calls with Windows Software Hack 15. Let Your Mac Answer and Log Your Calls Hack 16. Run Phlink Even When Logged Off Hack 17. Greet Callers Differently Each Day Hack 18. Use Caller IDs in AppleScripts Hack 19. Control iTunes from Phlink Hack 20. VoIP While Fragging Hack 21. Google for Telephony Info Hack 22. Telephonize a Sound File Hack 23. Record an Audio Chat on Your Mac Hack 24. Create Telephony Sounds with SoX Hack 25. Mix the Perfect Announcement Hack 26. Sound Like a Pro Announcer Hack 27. Record a Videoconference Chapter 3. Skype and Skyping Section 3.1. Hacks 2840: Introduction Hack 28. Get Skype and Make Some New Friends Hack 29. Skype Your Outlook Contacts Hack 30. Skype People from the OS X Address Book Hack 31. Enable Site Visitors to Skype You Hack 32. Speak Jyve Hack 33. Teach Your Browser to Speak Jyve Hack 34. Carry Skype in Your Pocket Hack 35. Degunk International SkypeOut Calls Hack 36. From Podcasting to Skypecasting Hack 37. Answer Your Skype Calls, Even When You're Not Around Hack 38. Use Custom Rings and Sounds with Skype Hack 39. Emote by Sight and Sound with Skype Hack 40. Skype with Your Home Phone Chapter 4. Asterisk Section 4.1. Hacks 4158: Introduction Hack 41. Turn Your Linux Box into a PBX Hack 42. Attach a SIP Phone to Asterisk Hack 43. Connect a Phone Line Using an FXO Gateway Hack 44. Connect a Legacy Phone Line Using Zaptel Hack 45. Forward Your Home Calls to Your Cell Phone Hack 46. Selectively Forward Calls Hack 47. Report Telephone Activity with Excel Hack 48. Kindly Introduce Telemarketers to Mr. Privacy Hack 49. Build a Four-Line Phone Server Hack 50. Master Music-on-Hold Hack 51. Record Calls Hack 52. Get Your Daily Weather Forecast from Your Telephone Hack 53. Put a Happy Face on Asterisk Using AMP Hack 54. Run Asterisk Without Root, for Security's Sake Hack 55. Link Two Asterisk Servers with PSTN Hack 56. Link Several PBXs over the Internet Hack 57. Route Calls Using Distinctive Ring Hack 58. Tune Up Your Asterisk Logs Chapter 5. Telephony Hardware Hacks Section 5.1. Hacks 5971: Introduction Hack 59. Record Calls the Old-Fashioned Way Hack 60. Make IP-to-IP Phone Calls with a Grandstream BudgeTone Hack 61. Build a Custom Ringtone for Your Grandstream Phone Hack 62. Tweak Your Sipura ATA Hack 63. Build a Bat Phone Hack 64. Brew Your Own Zaptel Interface Card Hack 65. Build a Speed-Dial Service on Cisco IP Phones Hack 66. Power Cisco Phones with Standard Inline Power Hack 67. Customize Your Cisco IP Phone's Boot Logo Hack 68. Configure Multiple IP Phones at One Time Hack 69. Customize Uniden IP Phones from TFTP Hack 70. Control the Lights Using Your IP Phone Hack 71. Use a Rotary-Dial Phone with VoIP Chapter 6. Navigate the VoIP Network Section 6.1. Hacks 7287: Introduction Hack 72. Monitor VoIP Devices Hack 73. Inspect the SIP Message Structure Hack 74. Audit a Network's QoS Capabilities Hack 75. Graph Latency and Jitter Hack 76. Explore NAT Traversal Hack 77. Shape Network Traffic to Improve Quality of Service Hack 78. Create a Premium Class of Service Hack 79. Build a $100 PSTN Gateway in 10 Minutes or Less Hack 80. Make IP Phone Configuration a Trivial Matter Hack 81. Peek Inside of SIP Packets Hack 82. Dig into SDP Hack 83. Sniff Out Jittery Calls with Ethereal Hack 84. Log VoIP Traffic Hack 85. Secretly Record VoIP Calls Hack 86. Log and Record VoIP Streams Hack 87. Intercept and Record a VoIP Call Chapter 7. Hard-Core Voice Section 7.1. Hacks 88100: Introduction Hack 88. Build a Killer Telephony Server Hack 89. Build an H.323 Gatekeeper Using OpenH323 Hack 90. Turn Your Linux Box into a Fax Machine Hack 91. Build an Inbound Fax-to-Email Gateway Hack 92. Teach Your Asterisk Box to Speak Hack 93. Build a Mac PBX Hack 94. Monitor Asterisk from Your Perl Scripts Hack 95. Build a SoftPBX with No Hard Drive Hack 96. Build a Standalone Voicemail Server in Less Than a Half-Hour Hack 97. Automate Your Voicemail Greeting Hack 98. Connect Asterisk to the Skype Network Hack 99. Forward Your Home Phone Calls to Skype Hack 100. Get Started with sipX Colophon Index Copyright © 2006 O'Reilly Media, Inc. All rights reserved. Printed in the United States of America. Published by O'Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472. O'Reilly books may be purchased for educational, business, or sales promotional use. Online editions are also available for most titles (safari.oreilly.com). For more information, contact our corporate/institutional sales department: (800) 998-9938 or [email protected]. Editor: David Brickner Production Editor: Sanders Kleinfeld Series Editor: Rael Dornfest Cover Designer: Marcia Friedman Executive Editor: Dale Dougherty Interior Designer: David Futato Printing History: December 2005: First Edition. Nutshell Handbook, the Nutshell Handbook logo, and the O'Reilly logo are registered trademarks of O'Reilly Media, Inc. The Hacks series designations, VoIP Hacks, the image of a Morse code tapper, and related trade dress are trademarks of O'Reilly Media, Inc. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and O'Reilly Media, Inc. was aware of a trademark claim, the designations have been printed in caps or initial caps. While every precaution has been taken in the preparation of this book, the publisher and author assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. Small print: The technologies discussed in this publication, the limitations on these technologies that technology and content owners seek to impose, and the laws actually limiting the use of these technologies are constantly changing. Thus, some of the hacks described in this publication may not work, may cause unintended harm to systems on which they are used, or may not be consistent with applicable user agreements. Your use of these hacks is at your own risk, and O'Reilly Media, Inc. disclaims responsibility for any damage or expense resulting from their use. In any event, you should take care that your use of these hacks does not violate any applicable laws, including copyright laws. ISBN: 0-596-10133-3 [M] Credits About the Author Contributors Acknowledgments About the Author Ted Wallingford is a senior network engineer with LCG Technologies Corp. in Elyria, Ohio, and the author of Switching to VoIP (O'Reilly). Ted has led installations of VoIP technology in the construction, manufacturing, and networking industries. A periodic contributor toMacworld magazine and VoIPfan.com, Ted is a strong advocate of open standards and Star Wars movies. He updates the web site http://www.macvoip.com/ at least a couple of times a year.
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