Send SMS messages using RUT241 in Node-RED

Networking Solutions
1

I have a RUT241 used as a network router and need to use it to send SMS alarm messages generated in a Node-RED environment. The current firmware on the RUT241 is 7.15. The Teltonika developer site has the following code that must be used.

{ “data”: { “number”: “string”, “message”: “string”, “modem”: “string” } }

I have spoken with tech support and they have informed me that I must use the following command to login to the RUT241 to allow the message to be sent.

https:///api/login -H “Content-Type: application/json” -d “{\“username\”:\“admin\”,\“password\”:\“PASSWORD*\”}”

I have done this in windows command prompt using the curl command and have received a json response with a token and active time in it.

I have not been able to put the items together to a successful message send. Any suggestions, please and thank you.

2

According to the event log on the RUT241, I have successfully sent an SMS message using the API. I have not received the message on my phone. The following is the log entries.

394 2025-10-30 16:09:51 SMS Events Info Sent 1 PDUs to +160000000
393 2025-10-30 16:09:50 Web UI Connections Notice User “admin” successfully authenticated on HTTP from 192.168.251.9 to 192.168.251.1
392 2025-10-30 16:04:52 CONFIG Events Notice User “admin” changed Sms_gateway configuration in “/services/mobile_utilities/sms_gateway/sms_forwarding” page
391 2025-10-30 16:04:18 Web UI Connections Notice User “admin” successfully authenticated on HTTP from 192.168.255.10 to 192.168.251.1
390 2025-10-30 15:58:23 SMS Events Info Sent 1 PDUs to +16000000
389 2025-10-30 15:58:22 Web UI Connections Notice User “admin” successfully authenticated on HTTP from 192.168.251.9 to 192.168.251.1
388 2025-10-30 15:56:40 SMS Events Info Sent 1 PDUs to +160000000

I can send myself a message using the WebUI. Is there another item I am missing?

4

Greetings,

We are currently working on your issue and will get back to you as soon as possible.

Best Regards,
Justinas

5

Greetings,

Could you please check whether sending an SMS message via the API using curl works?

To do this, you’ll need to access the router’s CLI. You can find instructions here:

Once connected, authenticate using the following command:

curl -k -X POST https://192.168.251.1/api/login -H "Content-Type: application/json" -d "{\"username\":\"admin\",\"password\":\"
YOUR_PASSWORD\"}"

After you receive the authentication token from the previous command, use it to send an SMS message with this command:

curl -k -X POST https://192.168.251.1/api/messages/actions/send -H "Content-Type: application/json" -H "Authorization: Bearer AUTH_TOKEN" -d "{\"data\":{\"number\":\"+160000000\",\"message\":\"Test message\",\"modem\":\"1-1\"}}"

If this command succeeds and you receive the SMS, the issue is likely within your Node-RED environment.

Please let me know about the result.

Best Regards,
Justinas

6

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