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The GSM Modem returned +CMS ERROR: 38 (Network out of order) after the ******* command
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March 14, 2018
11:04 am
Henk Helmantel
Forum Posts: 794
Member Since:
May 28, 2013
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Hello Peter,

This error message comes from the modem, it means that the message could not be sent because there is a problem with the connection of the modem to the mobile network.

The error messages that GSM modems give back do not always reflect the real cause of the problem. This error could also mean that the network has rejected the message for some reason, for instance when there are insufficient SMS credits for your SIM card.

Regards, Henk

March 14, 2018
10:39 am

everytime, after an sms sent, the event log reported

The GSM Modem returned +CMS ERROR: 38 (Network out of order) after the ******* command
reset modem connection
send modem reboot command
and then port ready again for sending sms

since **** may contain actual mobile and content, i have sent an email to you at the same time.

pls advise

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