@book{52845,
	author = {Martínez Perea, Rogelio},
	title = {Internet multimedia communications using SIP :},
	publisher = {Elsevier/Morgan Kaufmann,},
	year = {c2008},
	series = {The Morgan Kaufmann series in networking},
	address = {Amsterdam ;},
	url = {http://www.loc.gov/catdir/toc/ecip081/2007039431.html}
}