Johnston, Alan B. <br/><br/>
SIP :  understanding the Session Initiation Protocol  

 - 3rd ed. 
 - Boston :  Artech House,  2009. 
 - xxix, 395 p. :  ill. ;  24 cm. 
 - Artech House telecommunications library .
<br/><br/><label>ISBN: </label>9781607839958 (broch.) 
<br/><br/><label>LCCN: </label>2010286955 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Redes de computadores - Protocolos<br/>Programação de computador
<br/><br/><label>Dewey Class. No.: </label>004.6