TY  - BOOK
AU  - Saad Shamim, Noman Mobin & Qazi Abdul Mohaimin
TI  - Implementation of IP PABX
U1  - 621.38212072 SAD 
PY  - 2005///
CY  - Karachi
PB  - UIT
KW  - Telecommunication Engineering
KW  - Bachelor of Engineering (BE)
ER  -