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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.3
23, 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.
Table of Contents
Credits Preface Chapter 1. Broadband VoIP Services 1. Get Connected 2. Use Pure VoIP Dialing with Your TSP 3. Wire Your House Phones for VoIP 4. Use a Softphone with a VoIP TSP 5. Prioritize Packets to Improve Quality 6. Got 911? 7. Update Your VoIP ATA Firmware Chapter 2. Desktop Telephony 8. Access Next-Gen Voice Features 9. Track Vonage Account Info on Your Desktop 10. Pick a Desktop VoIP Client 11. Sound Like Darth Vader While You VoIP 12. Grow Your Social Network with Gizmo 13. Record VoIP Calls on Your Windows PC 14. Handle Calls with Windows Software 15. Let Your Mac Answer and Log Your Calls 16. Run Phlink Even When Logged Off 17. Greet Callers Differently Each Day 18. Use Caller IDs in AppleScripts 19. Control iTunes from Phlink 20. VoIP While Fragging 21. Google for Telephony Info 22. Telephonize a Sound File 23. Record an Audio Chat on Your Mac 24. Create Telephony Sounds with SoX 25. Mix the Perfect Announcement 26. Sound Like a Pro Announcer 27. Record a Videoconference Chapter 3. Skype and Skyping 28. Get Skype and Make Some New Friends 29. Skype Your Outlook Contacts 30. Skype People from the OS X Address Book 31. Enable Site Visitors to Skype You 32. Speak Jyve 33. Teach Your Browser to Speak Jyve 34. Carry Skype in Your Pocket 35. Degunk International SkypeOut Calls 36. From Podcasting to Skypecasting 37. Answer Your Skype Calls, Even When You're Not Around 38. Use Custom Rings and Sounds with Skype 39. Emote by Sight and Sound with Skype 40. Skype with Your Home Phone Chapter 4. Asterisk 41. Turn Your Linux Box into a PBX 42. Attach a SIP Phone to Asterisk 43. Connect a Phone Line Using an FXO Gateway 44. Connect a Legacy Phone Line Using Zaptel 45. Forward Your Home Calls to Your Cell Phone 46. Selectively Forward Calls 47. Report Telephone Activity with Excel 48. Kindly Introduce Telemarketers to Mr. Privacy 49. Build a Four-Line Phone Server 50. Master Music-on-Hold 51. Record Calls 52. Get Your Daily Weather Forecast from Your Telephone 53. Put a Happy Face on Asterisk Using AMP 54. Run Asterisk Without Root, for Security's Sake 55. Link Two Asterisk Servers with PSTN 56. Link Several PBXs over the Internet 57. Route Calls Using Distinctive Ring 58. Tune Up Your Asterisk Logs Chapter 5. Telephony Hardware Hacks 59. Record Calls the Old-Fashioned Way 60. Make IP-to-IP Phone Calls with a Grandstream BudgeTone 61. Build a Custom Ringtone for Your Grandstream Phone 62. Tweak Your Sipura ATA 63. Build a Bat Phone 64. Brew Your Own Zaptel Interface Card 65. Build a Speed-Dial Service on Cisco IP Phones 66. Power Cisco Phones with Standard Inline Power 67. Customize Your Cisco IP Phone's Boot Logo 68. Configure Multiple IP Phones at One Time 69. Customize Uniden IP Phones from TFTP 70. Control the Lights Using Your IP Phone 71. Use a Rotary-Dial Phone with VoIP Chapter 6. Navigate the VoIP Network 72. Monitor VoIP Devices 73. Inspect the SIP Message Structure 74. Audit a Network's QoS Capabilities 75. Graph Latency and Jitter 76. Explore NAT Traversal 77. Shape Network Traffic to Improve Quality of Service 78. Create a Premium Class of Service 79. Build a $100 PSTN Gateway in 10 Minutes or Less 80. Make IP Phone Configuration a Trivial Matter 81. Peek Inside of SIP Packets 82. Dig into SDP 83. Sniff Out Jittery Calls with Ethereal 84. Log VoIP Traffic 85. Secretly Record VoIP Calls 86. Log and Record VoIP Streams 87. Intercept and Record a VoIP Call Chapter 7. Hard-Core Voice 88. Build a Killer Telephony Server 89. Build an H.323 Gatekeeper Using OpenH323 90. Turn Your Linux Box into a Fax Machine 91. Build an Inbound Fax-to-Email Gateway 92. Teach Your Asterisk Box to Speak 93. Build a Mac PBX 94. Monitor Asterisk from Your Perl Scripts 95. Build a SoftPBX with No Hard Drive 96. Build a Standalone Voicemail Server in Less Than a Half-Hour 97. Automate Your Voicemail Greeting 98. Connect Asterisk to the Skype Network 99. Forward Your Home Phone Calls to Skype 100. Get Started with sipX Index
Born and raised in Detroit, MI, Ted Wallingford began working with information systems at the age of 7, when his father brought home a used Timex Sinclair 1000 computer and a notepad of hand-written BASIC programs from a garage sale. This little machine was the start of an eclectic career in the business of bits and bytes. While working in the data center at ad agency J. Walter Thompson, Ted began to write articles for computer magazines. This led him into writing marketing materials for Gateway Computer and the former Amiga Inc., where he was also webmaster in 1999. As I.T. Director for a large, private construction firm, Ted transformed a single-operator midrange computer room into a mission-critical 24x7 data center hosting services for lines of business across the country. Ted has designed and implemented Voice over IP on networks large and small. He offers network design for VoIP systems and product management assistance for up'n'coming VoIP carriers through his macVoIP.com consulting practice. Ted believes that VoIP and the Internet are today?s revolution in distance communication. Aside from technology and writing, Ted has served as a member of the board of trustees for an international adoption agency in suburban Cleveland, where he lives with his wife and two children.