BTCL- Bangladesh Telecommunication Company Limited
AT&T- American Telephone And Telegraph Company
FCC- Federal Communication Commission
ESS- Electronic Switching System
ARPA- Advanced Research Project Agency
SPRINT- Southern Pacific Railway International
RFC- Request For Comment Process
RADAR- Radio Detection And Ranging
LAN- Local Area Network
WAN- Wide Area Network
MAN- Metropolitan Area Network
TCP- Transfer Control Protocol
IP- Internet Protocol
ATM- Asynchronous Transfer Mode
BISDN- Brod band Integrated Service Digital Network
ICX- Inter Connection Exchange
IGW- International Gateway
IIG- International Internet Gateway
PSTN- Public Switched Telephone Network
ISL- Sheba Phone Limited
ISP- Internet Service Provider
CDMA- Code Division Multiple Access
DTE- Data Terminal Equipment
DCE- Data Circuit Terminating Equipment
ANSI- American National Standard Institute
CISPR- International Special Committee On Radio Interference