This book is intended to be used as an introductory text for the study of line communication system. In our present age of advanced telecommunication, the terms Switching, Sampling, BPS, Broadband, Modem, Fax, WLL etc. are not foreign words. The present book is written for understanding the concept of computer communication, simplex/duplex communication, detailed knowledge of telephony upto the present age key switching i.e. ISDN. This book can be served as the ...
