Definition of terms used in the present document, can be found in
TS 26.090,
TS 26.091,
TS 26.092,
TS 26.093 and
TS 26.094.
For the purpose of the present document, the following abbreviations apply:
ANSI
American National Standards Institute
ETS
European Telecommunication Standard
GSM
Global System for Mobile communications
I/O
Input/Output
RAM
Random Access Memory
ROM
Read Only Memory