TY  - BOOK
AU  - Kaza,Ramesh
AU  - Asadullah,Salman
TI  - CISCO IP telephony: planning, design, implementation, operation and optimization 
SN  - 8129709570 :
AV  - TK5105.8865 .K39
PY  - 2005///
CY  - Delhi
PB  - Pearson Educ.
KW  - Internet telephony
ER  -