I dont know about current boards but would warn you to be very careful with cheap boards from china. A few years ago I bought a couple arduino compatible gsm b

I dont know about current boards but would warn you to be very careful with cheap boards from china. A few years ago I bought a couple arduino compatible gsm boards and although they worked well and enabled me to to send data logs from remote devices via sms, after I finished using them, I was deluged with spam sms messages! Im assuming that while the boards were sending me messages they must have also sent my receiving number to another place where my number was sold to spammers.