Daly, Edward A. <br/><br/>
Visual telephony / 
Edward A. Daly, Kathleen J. Hansell. 
 - Boston :  Artech House,  c1999. 
 - xvii, 278 p. :  ill. ;  23 cm. 
 - Artech House telecommunications library. .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>1580530230 (cased) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Video telephone industry.