Ahson, Syed  A <br/><br/>
SIP handbook:services,technologies,and security of session initiation protocol 

 - Boca Raton  CRC  2009 
 - xvii,614p. 
<br/><br/>   
<br/><br/><label>ISBN: </label>9781420066036 
<br/><br/><label>Subjects--Index Terms: </label>Computer network protocols  Computer science  Internet telephony  Multimedia Systems