I'm seeking a reliable GSM module to work in 24 Hrs. I heard the AI thinkers A6 module is giving more troubles. Is anyone working with A9G module? How is it?
I’ve been using hundreds of SIMCOM 5320 (3G), and 7600 (4G) modules in 24/7 applications for several years.
No problems to report.
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Note that 2G and, especially, 3G networks are being shut down across the world.
So maybe not a great time to be starting a new project with GSM/GPRS ...? 
#2GSunset #GPRSSunset #3GSunset
Where did you hear that? What "troubles"?
Please give a link for context.
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