SMS text missed due 4G modem restarting

Jonas Van der Herten

• 2024年02月08日 09:11

Hi.
I have some EWON Flexys that are sending Alarm texts via SMS. 
So when the 4G modem is restarting for some reason and at the same moment there are alarms to be sent, noting is sent.
Is there a possibility to store the SMS texts when the modem is offline and send them when the modem is online again after the reboot? 
Sometimes an important SMS is missed, and our plants shut themselves off, we need the notification to act, missing the text is a big problem. 
Has somebody a solution for this problem?

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  Hugh Whitefur

  • 2024年02月08日 17:05

  Hi Jonas,

  There is no built in functionality to store SMS to send later, but I'm curious about the modem restarting often enough to cause this problem regularly. Do you happen to have MaxCallDur configured to reset the cellular connection each hour? You can read about how to adjust this in this article: How to change MaxCallDur to prevent hourly disconnects on a cellular Ewon

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