@book{248974,
	author = {Goncalves, Flavio E., and ebrary, Inc.},
	title = {Building telephony systems with OpenSER},
	publisher = {Packt,},
	year = {2008.},
	address = {Birmingham :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10449787}
}