Telephony

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Asterisk: The Definitive Guide, 3rd Edition By Leif Madsen, Jim Van Meggelen, Russell Bryant April 2011 Ebook: $43.99 Print & Ebook: $60.49 Print: $54.99	Asterisk Cookbook By Leif Madsen, Russell Bryant March 2011 Ebook: $16.99 Print & Ebook: $32.99 Print: $29.99	Asterisk: The Future of Telephony, 2nd Edition By Jim Van Meggelen, Jared Smith, Leif Madsen August 2007 Ebook: $35.99
Hacking the Cable Modem By Der Engel September 2006 Print: $29.95	VoIP Hacks By Theodore Wallingford December 2005 Ebook: $23.99 Print & Ebook: $32.99 Print: $29.99	Skype Hacks By Andrew Sheppard December 2005 Ebook: $19.99 Print & Ebook: $27.45 Print: $24.95
Talk Is Cheap By James E Gaskin July 2005 Print: $19.95	Switching to VoIP By Theodore Wallingford June 2005 Ebook: $31.99 Print & Ebook: $43.95 Print: $39.95	Practical VoIP Using VOCAL By David Kelly, Cullen Jennings, Luan Dang July 2002 Print: $49.99
T1: A Survival Guide By Matthew Gast August 2001 Print: $39.99

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