I try to send a SMS on a private lte network, but when i use the AT+CMGS command to send a SMS.
I’ve got a ERROR 315 = SIM ERROR
AT+CMGS=0123456789 >Hello +CMS ERROR: 315
I use text format SMS (AT+CMGF=1)
The Sim card used was a sysmocom with SMS capability.
I be able to receive SMS
How I could investigate (log, configuration) ?