TY  - BOOK
AU  - Ahson, Syed A.
AU  - Ilyas, Mohammad   .
TI  - VoIP handbook : applications, technologies, reliability, and security / 
SN  - 9781420070200
U1  - 004.69 004.69
PY  - 2009///
CY  - New York : 
PB  - CRC Press , 
KW  - INTERNET TELEPHONY-HANDBOOKS,MANUALS,ETC
N1  - Includes index
ER  -