→ B, C → D, E → H, I→ M, N → P, Q → Z

QoS
Quality of Service

QT
Qualifying Transaction

R and D
Research and Development

RANF
Revised Agreement for Access Network Facilities

ROI
Return On Investment

RPR
Resilient Packet Rings (specified in IEEE 802.17)

RSU
Rack Space Unit – basically a 19” equipment rack for mounting DSLAMs or other network equipment

RTO
Reverse Take-Over

SD
Standard Definition

SDTV
Standard Definition TeleVision

SFBB
Super Fast BroadBand

SLA
Service Level Agreement

SLCP
Sub Loop Connection Point – usually the PCP

SLG
Service Level Guarantee

SMPF
Shared Metallic Path Facility – Broadband & Voice services supplied by different CPs (e.g.: Voice by BT PSTN, Broadband by Virgin)

SNMP
Simple Network Management Protocol

SONET
Synchronous Optical Network

SRM
Sales Relationship Manager

SSFP
Service Specific Face/Front Plate – goes on the front of the NTE5

STS-1
Synchronous Transport System level 1

T2R
Trouble to Repair – measurement of time from the detection of trouble until it is repaired

TAM
Test Access Matrix

TRC
Time Related Charging – hourly labour charges

TSX
Toronto Stock Exchange

TSX-V
TSX Venture Exchange

UBASE
Universal Base – a flexible product in terms of rack space & power. Options include: HDF, AC or DC power

UPS
Uninterruptable Power Supply

UTP
Unshielded Twisted Pair

VDSL
Very high speed Digital Subscriber Line (specified in ITU G.993.1)

VDSL2
Very high speed Digital Subscriber Line version 2 (specified in ITU G.993.2)

VLAN
Virtual Local Area Network

VoIP
Voice over Internet Protocol

WAN
Wide Area Network

WiFi
Wireless Fidelity (specified by IEEE 802.11a/b/g/n)

WLR
Wholesale Line Rental

→ B, C → D, E → H, I→ M, N → P, Q → Z