@book{8923,
	author = {Bellamy, John,},
	title = {Digital telephony /},
	publisher = {Wiley,},
	year = {c2003.},
	series = {Wiley series in telecommunications and signal processing},
	address = {New York ;},
	edition = {3rd ed.},
	note = {"A Wiley-Interscience publication."}
}