Wallingford, Ted. creator text Sebastopol, CA O'Reilly Media Inc. c2006 monographic xviii, 306 pages : Illustrations ; Broadband VoIP services -- Desktop telephony -- Skype and skyping -- Asterisk -- Telephony hardware hacks -- Navigate the VoIP network -- Hard-core voice. "Tips & tools for Internet telephony"--Cover. Includes index. Internet telephony Software Hardware Telephone systems Data protection Information technology Internetworking (Telecommunication) TK 5105.8865 WAL 0596101333 (pbk.) 9780596101336 8184040695 http://www.loc.gov/catdir/toc/fy0701/2006299018.html http://www.loc.gov/catdir/enhancements/fy0715/2006299018-d.html http://www.loc.gov/catdir/toc/fy0701/2006299018.html http://www.loc.gov/catdir/enhancements/fy0715/2006299018-d.html