TY  - GEN
AU  - Kaza, Ramesh
AU  - Asadullah, Salman
TI  - Cisco IP telephony:  Planning, design, implementation, operation, and optimization
SN  - 8129709570
U1  - 621.395 
PY  - 2005///
CY  - New Delhi
PB  - Pearson Education
KW  - Cisco IP telephony
ER  -