Back up to the Front Page

Glossary

From AAISP Support Site
Jump to: navigation, search

DSL Related

DSL
Digital Subscriber Line
ADSL
Asymmetric 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

BT Fault Terms

See also BT's jargon buster at https://www.openreach.co.uk/orpg/home/products/serviceproducts/orderandfaulttracker/faulthandling/faulttrackerjargonbuster.do

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 an 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 - e.g. 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
FaultReportAdvised C
The result after running a PSTN line test. Usually Y or N, bur C means test Inconclusive/ Not Completed - Fault Report may be raised if CP believes there is a problem on BT network charges may be incurred if the fault is subsequently shown to be off BT network
RWT
Right When Tested
SIN
Supplier Information Note [BT]
SMPF
Shared Metallic Path Facility
SP
Service Provider (e.g. AAISP)
SSFP
Service Specific Front Plate
TPM
Tie Pair Modify - The cable from the MDF (main distribution frame) to the DSLAM port is replaced
TSO
Technology Service and Operations - a department within BT
WLR
Wholesale Line Rental
NTE
Network Termination Equipment
NTE5
Network Termination Equipment, 5th version

BT Fault Locations

See also BT's jargon buster at https://www.openreach.co.uk/orpg/home/products/serviceproducts/orderandfaulttracker/faulthandling/faulttrackerjargonbuster.do

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.

Openreach PSTN Fault Types

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.

BNR
Bell not ringing
BR
Bell ringing continuous
CCS
Call minder problems
CDT
Continuous Dial Tone
CO
Cuts off
DRO
Damage to aerial cables
DRU
Damage outside end user premises
DRW
Damage at the end users site
DRA
Damage Report Apparatus
FNT
Faint Transmission
MOD
No other equipment, retried
NDT
No dial tone
NR
Dial tone no answer
NSY
Noisy
NT
No Tone
NU
Number not Obtainable
OHR
Overhearing
OWT
One Way Transmission
PET
Permanently engaged tone
RTP
Ring Trip
UTR
Unable to trip ringing
WNO
Wrong Numbers Obtained
XL
Crossed lines
ESF
Exchange Service Facility

Services Related

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

Email Related

POP3
Post Office Protocol, Version 3
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

MTU
Maximum Transmission Unit
MRU
Maximum Receive Unit
IP
Internet Protocol
TCP
Transmission Control Protocol
PPP
Point to Point Protocol
LCP
Link Control Protocol
L2TP
Layer 2 Tunneling Protocol

Other

IRC
Internet Relay Chat - an online chat room, AAISP have one, see the contact page. You can talk to staff and customers