@book{49999,
	author = {Hanes,  David. and Salgueiro, Gonzalo.},
	title = {Fax, modem, and text for IP telephony /},
	publisher = {Cisco Press,},
	year = {c2008},
	series = {Cisco Press networking technology series.},
	address = {Indianapolis, IN :},
	note = {Includes index},
	url = {http://www.loc.gov/catdir/toc/ecip0818/2008020547.html}
}