Voice over IP :  systems and solutions / 
edited by Richard Swale 
 - London :  Institution of Electrical Engineers,  2001 
 - xviii, 484 p. :  ill. ;  24 cm. 
 - BT exact communications technology series ;  3 .
<br/><br/><label>ISBN: </label>0852960247  RM358.18 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony<br/>TCP/IP (Computer network protocol)