TY  - BOOK
AU  - Thermos,Peter
AU  - Takanen,Ari
TI  - Securing VoIP networks: threats, vulnerabilities, and countermeasures 
SN  - 0321437349 (pbk.)
PY  - 2008///
CY  - Upper Saddle River, NJ
PB  - Addison-Wesley
KW  - Internet telephony
KW  - Security measures
N1  - Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/toc/ecip0716/2007017689.html
ER  -