Glossary: Difference between revisions

Revision as of 13:33, 22 October 2013

DSL: Digital Subscriber Line
ADSL: Asynchronous Digital Subscriber Line
VDSL: Very-high-bit-rate Digital Subscriber Line
FTTC: Fibre to the Cabinet
FTTP: Fibre to the Premises
TAM: Test Access Module
BRAS: Broadband Remote Access Server (Takes PPP from EU and passes it to ISP by L2TP)
CPE: Customer Premise Equipment (router or modem)
DSLAM: Digital Subscriber Line Access Modulator
DLM: Dynamic Line Management
VP: Virtual Path - a link between an Exchange and the BRAS

BBCR: BroadBand Customer Reporting (BT)
BBEU: WBC EUA Service ID (Circuit ID)
CRD: Customer Required by Date
CP: Communications Provider
ELF: Early Life Failure - A fault soon after an install
CDTA: Conscious Decision To Appoint - force booking a Openreach engineer
FTR: Fault Threshold Rate - The speed at which the line is considered at fault
DP: Distribution Point
KBD: Knowledge Based Diagnostics
KCI: Keep Customer Informed
MFL: Main Fault Location
KCI: Keeping Customers Informed (BT term)
EU: End User
CA: Customer Apparatus
MPF: Metallic Path Facility
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)
PONR: Point of Now Return - eg when an engineer is booked and cannot now be cancelled.
PCP: Primary Cross-connect Point
PEW: Planned Engineering Works
POH: Point of Handover
RA: Rate Adaptive
REIN: Repetitive Electrical Impulse Noise
RWT: Right When Tested
SIN: Supplier Information Note [BT]
SMTP: Shared Metallic Path Facility
SP: Service Provider (eg AAISP)
SSFP: Service Specific Front Plate
WLR: Wholesale Line Rental
NTE: Network Termination Equipment
NTE5: Network Termination Equipment, 5th version

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.

Terms used to describe a fault type on a PSTN phone line. When reporting a PSTN fault to Openreach one of these terms is used to describe the fault.

BT: British Telecom
BTOR: British Telecom Openreach
OR: Openreach
BTW: BT Wholesale
TTW: TalkTalk Wholesale
DNS: Domain Name System/Server
VoIP: Voice over Internet Protocol
CDR: Call Detail Records - Call logs
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
SIM: Subscriber identity module
CLI: Caller Line Identification (re telephony)
CLI: Command Line Interface

ALG: Application Layer Gateway - typically software in a router to try to help with VoIP calls, often needing to be disabled

@@ Line 105: / Line 105: @@
 ;IMAP:Internet Message Access Protocol
 ;SMTP:Simple Mail Transfer Protocol
+==VoIP Related==
+;ALG:Application Layer Gateway - typically software in a router to try to help with VoIP calls, often needing to be disabled
 ==Network Related==