00642nam a22002051a 4500 1/17224 001010s1999 enk eng d 1580530230 17744 DLC GR-PeUP 651.7'3 DA Daly, Edward A. Visual telephony / Edward A. Daly, Kathleen J. Hansell Boston : Artech House, 1999 278 p. ; 24 cm. Incudes index Video telephone industry. Hansell, Kathleen J. INST UNIPILB MAIN 20040709 651.7'3 DA 00134449 00134449 LOAN 0 1 /webopac/covers/01/17744_1580530230.jpg