Paper Title
Single Channel Telecommunication
Abstract
In today’s fast paced world, though wireless communication is at its peak, wired communication has still not
vanished. This is because of the security, reliability and speed it offers. In the present system of landline telephony, each
phone is individually connected to the telephone exchange and data communication is analog. This paper proposes a bus
network manner of connection of these phones wherein data communication is done digitally instead of traditional analog
communication. This not only reduces the cost of wiring but also the cost of maintenance at telephone exchange where huge
amount of money is spent annually on cooling systems.
Keywords - Digital communication, Telecommunication, Bus network topology, Voice encoder, CMX 638, Microcontroller
Atmega8, Two Wire Interface (TWI)