Word / Term Definition

“Connection” means the visible or invisible or logical linking of telecommunication network.


“CCTLD” is the Country’s Top Level DNS (i.e. dot bd or .bd for Bangladesh). Asia Pacific Network Information Centre (APNIC) usually offers full software and hardware package for Internet Interconnection Exchanges.

Call Detail Records (CDR)

The detail records generated by all types of switches and HUB in binary or any other form or file that includes all types of records of outgoing or incoming calls or calls in transit with caller and called party number, origin and destination of calls, call duration, calling time, location, etc.


Computer Science & Engineering