Hi there,
I can see that I have misunderstood your question, apologies for that.
Starting from firmware 00.07.14.0, the POST/GET services were completely withdrawn. You can find more details on this change here:
To send SMS via RUT 241 You can utilize the API requests; More information specifically on sending SMS messages can be found here: https://developers.teltonika-networks.com/reference/trb500/7.14.3/v1.6.3/messages#post-messages-actions-send
Regards,
Arturas