TY  - BOOK
AU  - Ransome,James F
AU  - Rittinghouse,John W
TI  - VoIP security
SN  - 1555583326
U1  - 005.8 22
PY  - 0000///د.ت
CY  - Amsterdam, Boston
PB  - Elsevier
KW  - Internet telephony
KW  - Security measures
N1  - Includes bibliographical references (p. 379-384) and index
UR  - http://www.loc.gov/catdir/enhancements/fy0618/2004059935-t.html
UR  - http://www.loc.gov/catdir/enhancements/fy0618/2004059935-t.html
UR  - http://www.loc.gov/catdir/description/els051/2004059935.html
UR  - http://www.loc.gov/catdir/description/els051/2004059935.html
ER  -