TY  - BOOK
AU  - Douskalis,Bill
TI  - IP telephony: the integration of Robust VoIP services 
T2  - Hewlett-Packard professional books
SN  - 8178082853
AV  - TK5105.8865 .D68 2000
U1  - 621.38212 
PY  - 2000///
CY  - New Delhi
PB  - Pearson Education
KW  - Internet telephony
ER  -