TY  - BOOK
AU  - Collins, Daniel
AU  - Collins, Daniel
TI  - Carrier grade voice over IP
SN  - 9780071231558
AV  - 004.6922 COL 2003 
U1  - 004.6922 COL 2003 
PY  - 2003///
CY  - New York�
PB  - McGraw-Hil
KW  - Computer Engineering
ER  -