GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile), is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second-generation (2G) digital cellular networks used by mobile phones, first deployed in Finland in July 1992.[2] As of 2014 it has become the default global standard for mobile communications - with over 90 market share, operating in over 219 countries and territories.[3]

Sim300demo\Sim300demo\Debug\lib\lcd\lcd.d
..........\..........\.....\...\...\lcd.o
..........\..........\.....\...\sim300\sim300.d
..........\..........\.....\...\......\sim300.o
..........\..........\.....\...\usart\USART.d
..........\..........\.....\...\.....\USART.o
..........\..........\.....\makedep.mk
..........\..........\.....\Makefile
..........\..........\.....\Sim300demo.d
..........\..........\.....\Sim300demo.eep
..........\..........\.....\Sim300demo.elf
..........\..........\.....\Sim300demo.hex
..........\..........\.....\Sim300demo.lss
..........\..........\.....\Sim300demo.map
..........\..........\.....\Sim300demo.o
..........\..........\lib\lcd\lcd.c
..........\..........\...\...\lcd.h
..........\..........\...\...\myutils.h
..........\..........\...\sim300\sim300.c
..........\..........\...\......\sim300.h
..........\..........\...\usart\USART.c
..........\..........\...\.....\usart.h
..........\..........\Sim300demo.avrgccproj
..........\..........\Sim300demo.c
..........\Sim300demo.avrsln
..........\Sim300demo.avrsuo
..........\..........\Debug\lib\lcd
..........\..........\.....\...\sim300
..........\..........\.....\...\usart
..........\..........\.....\lib
..........\..........\lib\lcd
..........\..........\...\sim300
..........\..........\...\usart
..........\..........\Debug
..........\..........\lib
..........\Sim300demo
Sim300demo

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