Hello!, Some time ago I developed an application to send SMS with TRB255, connected via RS232, using AT commands. I send the SMS in the pdu format, so initialize the modem with the command AT+CMGF=0, then send the commands
AT+CMGS=[length of the pdu]
[pdu]\x1A\r\n
Everything worked fine up to firmware release TRB2_R_00.07.04.1_WEBUI, with the modem answering OK, but starting from firmware release TRB2_R_00.07.04.2_WEBUI, the modem sends the SMS properly, but does not answer and enter in an invalid(?) state, with the three leds 2G, NB, M1 blinking together.
Can anybody provide help? Thank you
Hello,
Could you try stopping the mobifd and gsmd services and checking is you can send the commands then?
The commands are:
service gsmd stop
service mobifd stop
Please keep in mind, that gsmctl utility will not work. You will need to connect directly to the modem using microcom.
Best regards,
Hello,
thank you for your answer.
Please can you provide some details on how to give this commands? Somewhere in the web interface? Or ssh connection?
Sorry, I was used to interact with modems via serial port and AT commands.
Hello,
This can be done either via SSH, or via the CLI built into the WebUI. More information can be found here: Command Line Interfaces RutOS - Teltonika Networks Wiki
Make sure to use root username, and the same password as the WebUI.
Stopping those services, things get even worse: the three leds 2G-NB-M1 blink together and the modem does not send neither the first SMS
Hello,
Apologies for a late response.
Just to clarify, did you use the microcom utility to send the SMS? Does the internal modem respond with OK?
Are you sure that the modem is configured in full control mode in Services → Serial Utilities → Modem Control?
Best regards,
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