TY  - BOOK
AU  - Collins,Daniel
TI  - Carrier grade voice over IP
T2  - McGraw-Hill networking professional
SN  - 0071231552
AV  - TK5105.8865 C644C 2003
PY  - 2003///
CY  - Boston, Mass.
PB  - McGraw-Hill
KW  - INTERNET TELEPHONY
N1  - Includes bibliographical references and index
ER  -