Photocopy <br/><br/>
Topic digital telephony 

 - Islamabad  Riphah International University  2001 
 - 59 p.  : ill.  30 cm. 
<br/><br/><label>ISBN: </label>(pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical engineering<br/>Telephony digital--analog digital conversion--Digital transmission--Digital switching--Control memory--Digital network--FEAS
<br/><br/><label>Dewey Class. No.: </label>621.385  / TOP