A new way to master communication with gsm modem sim box
Contact link: https://lnkd.in/gFP_jSWe
skype: skyline_arise || WA: +8617688733622 || TG: @arisechiu513
GSM modem is a device which you just simple connect to laptop with usb cable and use a sms software to send and receive sms.
It's widely used for sms business like sms business termination, OTP, voice message....
There are 8/16/32/64 ports available and you can control 8/16/32/64 sims at the same time. 2G/4G network is optional.
Contact me to get inquiry!