TY  - BOOK
AU  - VISWANATHAN T.
TI  - TELECOMMUNICATION SWITCHING SYSTEMS AND NETWORKS
U1  - 621.382 
PY  - 2014///, R.P. 2015
PB  - PHI LEARING PRV.LTD
KW  - ELECTRONICS AND TELECOMMUNICATION
N1  - SE/SI/2096
ER  -