Glossary

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General Terms related to AAISP

DSL Related

ADSL
Asymmetric Digital Subscriber Line
BRAS
Broadband Remote Access Server (Takes PPP from EU and passes it to ISP by L2TP)
CPE
Customer Premise Equipment (router or modem)
DSL
Digital Subscriber Line. E.g. ADSL, FTTC/VDSL, Gfast.
DSLAM
Digital Subscriber Line Access Modulator
DLM
Dynamic Line Management
FTTC
Fibre to the Cabinet. Fibre optic cables to the cabinet, and then copper to the premises.
FTTP
Fibre to the Premises. Broadband running over fibre optic cables. The data is sent through light lasers. No copper pair is required. Fastest speed.
G-Fast
Addition on the cabinet that gives faster speed. Higher frequencies.
L2TP
A standard system called Layer Two Tunnelling Protocol (L2TP) which allows you (using suitable software or equipment) to connect to us via another Internet access service.
LTS
L2TP tunnel switch - the router on the wholesaler's network (eg TalkTalk) that forwards the LT2TP to the ISP. Also see; L2TP on Juniper's website
TAM
Test Access Module
VDSL
Very-high-bit-rate Digital Subscriber Line
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

AI
Action Item
BBCR
BroadBand Customer Reporting (BT)
BBEU
WBC EUA Service ID (Circuit ID)
CA
Customer Apparatus
CDTA
Conscious Decision To Appoint - force booking an Openreach engineer
CP
Communications Provider
CRD
Customer Required by Date
DP
Distribution Point
ELF
Early Life Failure - A fault soon after an install
EU
End User
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
FTR
Fault Threshold Rate - The speed at which the line is considered at fault
KBD
Knowledge Based Diagnostics
KCI
Keep Customer Informed. SMS or Email informing customers of any line discrepancies.
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).
MFL
Main Fault Location
MPF
Metallic Path Facility
NTE
Network Termination Equipment
NTE5
Network Termination Equipment, 5th version
PONR
Point of No 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 - some sort of interference causing problems with a broadband line - tricky to pinpoint, patience needed in diagnosing these faults.
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
WAC
Work Allocation Controls (team)
WLR
Wholesale Line Rental

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

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
ESF
Exchange Service Facility
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


Services Related

BT
British Telecom
BTOR
British Telecom Openreach
BTW
BT Wholesale
CLI
Caller Line Identification (re telephony)
CLI
Command Line Interface
CDR
Call Detail Records - Call logs
CQM
Constant Quality Monitoring - the name given to the monitoring graphs used on the control pages and FireBricks. Customers and staff can view these graphs in near real time and historical graphs. It’s updated every 100 seconds. Sends an LCP echo every second (a bit like a PING).
DNS
Domain Name System/Server. Translates domain name to an IP address to have an internet location.
Domain
Text/written address of an IP address. DNS translates this to an IP address to be understood by a computer.
DS
Delegation signer (The record used to identify the DNSSEC signing key of a delegated zone)
Hostname
Used in association with domain name. E.g. support.aa.net.uk.
IDN
Internationalised Domain Name
IP
Internet Protocol
MSO
Major Service Outage - some sort of fault that will be affecting lots of customers - should be on https://aastatus.net.uk
OR
Openreach
RIPE
The Réseaux IP Européens Network - the organisation in Europe who manage IP addresses
SIM
Subscriber identity module
SIP:Session Initiation Protocol - Sets up a VoIP call.
TTW
TalkTalk Wholesale
VoIP
Voice over Internet Protocol

Email Related

IMAP
Internet Message Access Protocol
POP3
Post Office Protocol, Version 3
SMTP
Simple Mail Transfer Protocol

Other

IRC
Internet Relay Chat - an online chat room, AAISP have one, see the contact page. You can talk to staff and customers
TCH
Telecity Hex - a datacentre in London run by Equinix AKA HEX, LD8, LOH - A&A have racks there
THN
Telehouse North - a datacentre in London - A&A have racks there