TY  - BOOK
AU  - Johnston Alan B
AU  -  Piscitello David M
TI  - Understanding voice over IP security
T2  - Artech House telecommunication library
SN  - 1596930500 (hbd)
U1  - D65,8(B):71:(894), P6     TD 
PY  - 2006///
CY  - Boston
PB  - Artech House        
KW  -  Internet telephony-Security measures
KW  - Computer Science
N1  - Includes bibliographical references.; Index 253-261p
ER  -