TY  - BOOK
AU  - Swale,Richard
AU  - Collins,Daniel
TI  - Carrier grade VoIP
SN  - 9780071827713
AV  - TK5105.8865 .C65 2014
PY  - 2014///
CY  - New York
PB  - Mc-Graw Hill Education
KW  - Internet telephony
KW  - Switching theory
ER  -