Bellamy, John.
Digital telephony / John Bellamy. - 2nd ed. - New York : Wiley, c1991. - xix, 572 p. : ill. ; 25 cm. - Wiley series in telecommunications .
Includes bibliographical references and index.
0471620564
90037906
Digital telephone systems.
621.385
Digital telephony / John Bellamy. - 2nd ed. - New York : Wiley, c1991. - xix, 572 p. : ill. ; 25 cm. - Wiley series in telecommunications .
Includes bibliographical references and index.
0471620564
90037906
Digital telephone systems.
621.385