you can do it via SMS, however, it will take too much time for you, and the SMS will be a bit long,
from SMS, here is the Parameter list ID for the TAT140: TAT140 Parameter list - Teltonika Telematics Wiki
as per your requirement, you need to enable the I AM Alive feature only “setparam 242:1”
and for the configuration on one ping per day, I suggest you go with the schedule,
“setparam 184:2;2600:1;2601:1;2602:1;2603:1;2604:1;2605:1;2606:6”
Thanks for your help! Unfortunatley when trying to activate “I am Alive” - “setparam 242:1” I get the response “Not support Param ID or Value not detected.”
So I am assuming the unit is on older firmware - I presume I can’t update the firmware without connecting it to a Windows Laptop?
I’ll have a think if I can do something similar to what I want with setting the parameters - unless you can think of something.