Good day. Thank you for your question.
May I know if you are receiving the reply to other SMS commands such as getinfo/getstatus/getgps? We would like to analyze your situation here. Please reach out to us via VIP Helpdesk or contact your Sales Manager/Distributor. If you don't have any contacts with our Sales Managers, please contact them on our official website https://teltonika-gps.com/
and click on the "Contact Us" button. When you will click, please fill the form and submit it.
Note: as a topic, please choose "Vehicle telematics" or you can send an e-mail with the description of your situation to firstname.lastname@example.org
When contacting us please provide the IMEI, logs, configuration file, International GSM number, and the firmware version. Please follow these recommendations: https://wiki.teltonikagps.com/view/Recommendations_for_filling_a_query_description
Thank you for your understanding.