TY  - BOOK
AU  - Ahson ,Syed
AU  - Ilyas ,Mohammad
TI  - VoIP Handbook: Applications , Technologies , Reliability , and Security 
SN  - 9781420070200 (hardcover : alk. paper)
AV  - TK5105.8865 .V658 2009
PY  - 2009///
CY  - Boca Raton : 
PB  - CRC Press , 
KW  - Internet telephony
KW  - Handbooks , manuals , etc
N1  - Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/toc/fy0906/2008049366.html
ER  -