TY  - GEN
AU  - Ali, NC Syed Faisal (TCC-7)
AU  - Supervised by Lecturer Asadullah Khan
TI  - Design of a PC based PABX with voice mail
U1  - 621.382,ALI 
PY  - 1999///
CY  - Rawalpindi
PB  - MCS (NUST)
KW  - UG Projects
KW  - TCC-7
N1  - Introduction  (Page-1), Basic Implementation of the circuit  (Page-2), Voice mail (Page-3), Introduction to interface circuit (Page- ),  DTMF receiver (Page-6), Analog switch array (Page-7), Working of an exchange (Page-8)
ER  -