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Glossary of Telecom and IT terms Used:

ACD Automatic Call Distribution
ADSL Asymmetric Digital Subscriber Line
BRA Basic Rate Access
CCU Central Control Unit
CLI Calling Line Identity
CPS Carrier Pre Selection
CTI Computer Telephony Intergration
DASS Digital Access Signalling System
DDI Direct Dial Inwards
DPNSS Digital Private Network Signalling System
DTMF Dual Tone Multi Frequency
FPS Fax Preference Service
ISDN

Intergrated Services Digital Network

ISP Internet Service Provider
ICSTIS Independent Committee for the Supervision of Telephone Information Services
LLU Local Loop Unbundling
NGN Non Geographic Numbers
OCB Outgoing Calls Barred
PSTN Public Switched Telephone Network
PABX Private Automatic Branch Exchange
PMBX Private Manual Branch Exchange
SDSL Synchronous Digital Subscriber Line
SIP Session Initiation Protocol
UPS Uninterrupted Power Supply
VDSL Very high bandwidth DSL
VOIP Voice Over Internet Protocol
WAN Wide Area Network

 


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