4G – Fourth Generation
5G – Fifth Generation
ADSL – Asymmetric Digital Subscriber Line
BPO – Business Process Outsourcing
BSS – Billing Support System
CAPEX – Capital Expenditure
CCC – Colombo City Centre
CDMA – Code Division Multiple Access
CRM – Customer Relationship Management
CSP – Communication Service Provider
DC HSPA+ – Dual-Carrier High Speed Packet Access
DSP – Digital Service Provider
EBITDA – Earnings Before Interest, Taxes, Depreciation and Amortisation
EPF – Employees’ Provident Fund
ERP – Enterprise Resource Planning
ETF – Employees’ Trust Fund
FBB – Fixed Broadband
FTTP – Fibre-To-The-Premises
FTTN – Fibre-To-The-Node
Gbps – Gigabits per second
GRI – Global Reporting Initiative
GTH – Global Telecommunications Holdings
HDTV – High Definition Television
HSPA – High Speed Packet Access
ICT – Information and Communication Technologies
ICTA – Information and Communication Technology Agency
IDD – International Direct Dialling
IMS – IP Multimedia Subsystem
INED – Independent Non-Executive Director
IoE – Internet of Everything
IoT – Internet of Things
IPTV – Internet Protocol Television
ISP – Internet Service Provider
ITU – International Telecommunication Union
KPI – Key Performance Indicator
KPO – Knowledge Process Outsourcing
LED – Light Emitting Diode
LGN – Lanka Government Network
LTE – Long-Term Evolution
MBB – Mobile Broadband
Mbps – Megabits per second
MIMO – Multiple-Input and Multiple Output
MoU – Memorandum of Understanding
MPLS – Multi Protocol Label Switching
MTTR – Mean Time To Resolution
NB-IoT – Narrowband Internet of Things
NBN – National Backbone Network
NED – Non-Executive Director
NFV – Network Functions Virtualisation
NGN – Next Generation Network
OPEX – Operating Expenses
OSS – Operational Support System
OTT – Over The Top
PAT – Profit After Tax
PBT – Profit Before Tax
PEO TV – Personalised Entertainment Option Television
PIOCMA – Pacific and Indian Ocean Cable Maintenance Agreement
PoP – Point of Presence
PSTN – Public Switched Telephone Network
RCS – Rich Communications Suite
SAFA – South Asian Federation of Accountants
SDN – Software-Defined Networking
SEA ME WE – South East Asia – Middle East – West Europe
SEAIOCMA – South East Asia and Indian Ocean Cable Maintenance Agreement
SLBN – Sri Lanka Telecom Broadband Network
SLFRS – Sri Lanka Financial Reporting Standards
SLIM – Sri Lanka Institute of Marketing
SME – Small and Medium Enterprise
SOA – Service Oriented Architecture