TY  - BOOK
AU  - Bill  Douskalis
TI  - IP telephony : : the integration of Robust VoIP services
SN  - 9788178082851
U1  - 621.386 D749i 
PY  - 2002///
CY  - New Delhi
PB  - Pearson Education
KW  - Voice telephony
KW  - control
KW  - Internet telephony
KW  - Computer networks
ER  -