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A good free way to achieve this is to use Signal. This project https://github.com/AsamK/signal-cli https://github.com/AsamK/signal-cli enables you to send Signa
by trees101 5y ago
A good free way to achieve this is to use Signal. This project https://github.com/AsamK/signal-cli https://github.com/AsamK/signal-cli enables you to send Signal messages from the command line, including from Raspberry Pis. It obviously needs an internet connection to work, but has the added bonus of being more secure than SMS.
- bee_rider 5y agoNeat tech, but probably not super appropriate for this person's particular application, which involved detecting network outages.
- bigiain 5y agoI'm guessing if that USB Modem can send SMS, it can almost certainly also get a TCP connection. (It is probably easier to find a sensibly priced SIM/plan that lets you sand a handful of SMS messages a year compared to one with a ultra low data usage internet connection though.)