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Telecoms Acronyms
Telephone Numbers

Telecoms Acronyms

Admin Call Forward / Admin Call Diversion – calls are forwarded to an alternative telephone number, but the lines are not ceased – Monthly option affects the call divert for one month then stops – Quarterly option is ongoing.
21C
21st Century

3DS
3D Secure Card Payment Processing

ADSL
Asymmetric Digital Subscriber Line (Broadband)

BAU
Business As Usual

BGP
Border Gateway Protocol

BT
BT Wholesale

CCoP
Customer Controlled Profiles

CDD
Committed Delivery Date

CDR
Call Data Record

CLIP
Caller Line Identity Presentation

CLIR
Calling Line Identity Restriction

COLP
Connected Line Identity Presentation

COLR
Connected Line Identity Restriction

CPE
Customer Premises Equipment

CPS
Carrier Pre-Selection

CR
CR Caller Redirect – ceases the line and forwards the call to another telephone number

DIA
Direct Internet Access

DLM
Dynamic Line Management

DN
Dialled Number

DSLAM
Digital Subscriber Line Access Multiplexer

EAD
Ethernet Access Direct

EBC Matrix
Element Based Charging Matrix

ECCs
Excess Construction Charges

EDI
Electronic Data Interchange

EFM
Ethernet First Mile

FTTC
Fibre to the Cabinet

FTTP
Fibre to the Premises

GEA
General Ethernet Access

HA
High Availability

Hybrid
Cloud Hosted Dedicated Telephone System

ICB
Permanent Incoming Barring

IDA
Indirect Access

ISDN
Integrated Services Digital Network

ISDN2

ISDN DASS
Pair of digital lines, for voice or data no longer available – digital lines that can be partitioned by billing number – 1 to 30 lines

ISDN2 Complex
2 or more digital lines for a telephone system, max 4 x ISDN2 giving 8 lines

ISDN30e
Digital lines for a telephone system, 8 to 30 lines

ISE
Internet Script Editor

ISIN
Integrated Services Internet Network

L2TP
Layer 2 Tunnel Protocol

Labels
The destination number for a NTS number

LCR
Low Cost Routing

LLU
Local Loop Unbundling

MIM
Major Incident Management

MOS
Mean Opinion Score for VoIP Telephone Call Testing (1.0-5.0) to indicate VoIP call quality after it is transmitted and compressed using codecs

MOTO
Mail Order Telephone Order

MPLS
Multi Protocol Label Switching

MSANs
Multi-Service Access Nodes

NGN
Next Generation Network

NGS
Next Generation Switch

NIPI
National Internet Protocol Interconnect

NSSP
Non Standard Solution Process

NTE
Network Termination Equipment

NTS
Number Translation Service – the service distribution for all non-geographic numbers i.e. 0800/0845 etc numbers that are not attached to a fixed telephone line

OCP
Originating Communications Provider

P2P
Point to Point

PAYG
Pay as You Go

PBX
Telephone System

POP
Point of Presence

PPPoE
Point to Point Protocol over Ethernet

PSTN
Public Switched Telephone Network

SaaS
Software as a Service

Schedule Target
Used to limit the number of concurrent calls

SIM
Simultaneous

SIP
Session Initiation Protocol

SLA
Service Level Agreement

SMPF
Shared Metallic Path Facility

SNDDI
Single Number Direct Dial Inbound

SoGea
Single Order General Ethernet Access

TCP
Terminating Communications Provider

TDM
Time Division Multiplexing

VDN
Vector Delivery Number

VDSL2
Very High Speed Digital Subscriber Line 2

Vector
PBX IVR routing

VoIP
Voice over Internet Protocol

VPN
Virtual Private Network

VSP
Virtual Storage Platform

WAN
Wide Area Network

WBC
Wholesale Broadband Connect

WLR
Wholesale Line Rental