Asymmetric Digital Line Subscriber (ADSL) under Exchange Installation Division and .bd domain under Admin & Coordination division of Bangladesh Telecommunication

Abstract

Internet is becoming a very common measure of telecommunication in Bangladesh. The number of internet users is increasing day by day. It is very attractive market for the mobile-telephone connection providers. Internet is the groundbreaking discovery of 20th century. In this epoch of modernization we have observed massive development of the internet as well as the different programs supported by it. To accomplish and to know the networking process in practically we wanted to do intern in an established company like BTCL. From BTCL, we learn the working procedure of asymmetric digital line subscriber (ADSL), the process and working principle of public switched telephone network (PSTN). We learnt about different types of cables and their uses, how AAA server works, procedure of new connection, migration, temporary disconnection, permanent close, billing and shifting. We also learnt the set up of VPN, LAN and register procedure of .bd domain.