Glossary

DSL Related

KBD: Knowledge Based Diagnostics
KCI: Keep Customer Informed
MFL: Main Fault Location
CA: Customer Apparatus
MBORC: Matters Beyond Our Reasonable Control. Used by BT to indicate that they're suspending normal fix guarantees as some external event has made it impossible to achieve them (e.g. a fire, storms, terror attack).
AI: Action Item
WAC: Work Allocation Controls (team)

CA: Fault located at Customer Apparatus
DT: Diagnostic Test required to establish fault
EX: Fault located in Exchange
LN: Fault Located in Local Network
CE: Fault located at Customer Equipment. Provides further breakdown of a CA fault
FU: Fault Located at Frames Unit. Provides further breakdown of an EX fault.

BT: British Telecom
BTOR: British Telecom Openreach
BTW: BT Wholesale
TTW: TalkTalk Wholesale
DNS: Domain Name System/Server
VoIP: Voice over Internet Protocol
SIP:Session Initiation Protocol - Sets up a VoIP call.
DS: Delegation signer (The record used to identify the DNSSEC signing key of a delegated zone)
IDN: Internationalised Domain Name
IP: Internet Protocol
CQM: Constant Quality Monitoring - the name given to the monitoring graphs used on the control pages and FireBricks
RIPE: The Réseaux IP Européens Network - the organisation in Europe who manage IP addresses