Talley, David <br/><br/>
Basic telephone switching systems/ 
David Talley 
 - Bombay:  D.B. Taraporevala,  c1980 
 - 166 p.:  ill.;  21 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone switching systems, electronic<br/>Telephone systems<br/>Telephone--Signalling<br/>Telephone, Dial
<br/><br/><label>Dewey Class. No.: </label>621.3877