I have some remote 4G Routers on our network over VPNs, these occassionaly drop connectivity. I can send a SMS message to the device to reboot them (message is password reboot). I would like to achieve this using HA and have individual buttons to send the SMS to each device on the dashboard.
Thanks for your replies. I was hoping to use a cloud based sms service. Is this an option? Also if anyone is using this service in such away some example configurations.
I do have some old 2G GSM modems we have recently pulled out from some client upgrade jobs we did for access control systems. These are DB9 serial connections, that might work with a usb to serial converter. Was hoping to not have to provide a SIM card and go cloud service though