Meaning of `LAST ACTIVE` on the dashboard?


#1

What is the exact meaning of the LAST ACTIVE timestamp on the dashboard?

Is the the last time the device had power and was in signal range of a compatible cellular network?

Or is it the last time the device successfully sent or received user data?

Is there a way o check if a device is currently powered up and Connected to a cellular network?

Is there an SMS “ping” on the Nova modem where I can send it a specially formatted SMS message that will cause the modem to automatically reply so I know that it currently has cellular connectivity?

Thanks!


#2

It’s the last time the device was connected to the APN. It also updates periodically throughout a session as more data is transferred and when the session ends.

That type of ping isn’t built in but could be made with the SDK. I think some people on the forum have done similar things so maybe someone can post an example here


#3

Oh and to answer your other question, the dashboard will indicate if the device is currently connected (within maybe a minute of connecting) but that’s based on being on the APN and not just the tower


#4

Under what conditions does a modem connect to the APN (or not)?

Does this happen anytime a properly configured modem has power and is in signal range of a compatible network?

Or does it require some handshaking with the device the modem is connected to?

I am specifically using a Nova Global Cellular Modem 3G/2G (U201), but looking to try to generally understand the nomenclature and dependencies in this system.

Thanks!


#5

It needs to be on the APN to send data. Not needed for SMS.
It’s an extra step on top of the tower connection.
(Note that this is different in 4G/Cat-M)

Whenever you send a message or connect to the network with our SDK it’s all taken care of automatically