Glossary

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3G Technology Third generation mobile phone technology
4G Technology Fourth generation mobile phone technology

A

Access Charge The charge paid to TOT for an access to TOT’s telecommunications network
ARPU Average revenue per user

B

Bandwidth The width of frequency band
BTO Build-Transfer-Operate

C

CAT CAT Telecom Public Company Limited (formerly the Communication Authority of Thailand)
CAPEX Capital expenditure
CDR Call Detail Record
CDP The Central Depository (Pte) Limited
Concession Agreement Agreement to Operate and Provide Cellular System Radio Telecommunication Service (as amended)

D

DTN, dtac TriNet dtac TriNet Company Limited

E

EDGE Enhanced Data-Rates for GSM Evolution

G

GB Giga byte, a billion of byte, which is a measurement of data volume
GPRS General Packet Radio Service
GSM Global System for Mobile Communications
GHz Giga Hertz, a billion of hertz, which is a measurement of frequency

H

HSPA High Speed Package Access, a 3G technology

I

IMEI International Mobile Equipment Identity
Interconnection Charge (IC) The cost-based charge paid to other operators for connecting into their networks
IMT International Mobile Telecommunications
IVR Interactive Voice Response System

L

LTE Long-Term Evolution, a 4G technology

M

MB Mega Byte, a million of byte, which is a measurement of data volume
MHz Mega Hertz, a million of hertz, which is a measurement of frequency
MMS Multimedia Messaging Service
MNP Mobile Number Portability
MOU Minute of use per user
MVNO Mobile Virtual Network Operator

N

NBTC The National Broadcasting and Telecommunications Commission
Net addition The number of new subscribers acquired less the number of subscriber leaving during the period

P

PCN 1800 Digital GSM wireless telecommunications service under the 1800 MHz frequency band
Penetration Rate The number of SIM cards divided by the number of population

S

SEC Securities and Exchange Commission
SET The Stock Exchange of Thailand
SGX-ST Singapore Exchange Securities Trading Limited
Smartphone Mobile phone offering advanced capabilities, often with PC-like functionality
SMS Short Message Service

T

TOT TOT Public Company Limited (formerly Telephone Organisation of Thailand)
TSD The Thailand Securities Depository Co., Ltd.

U

UCOM United Communication Industry Public Company Limited

V

VAS Value Added Services
VOIP Voice over Internet Protocol

W

WiFi, Wi-Fi Wireless Fidelity, a type of wireless networking protocol