@magnatron Thank you for your response!

These commands are exactly what I tested with. But I keep receiving CME Error: 4 at AT-NMGS.
I understand that there needs to be a connection to the Huawei part of the platform. Is this correct?
I found the commands here: https://support.sodaq.com/Shields_and_Bees/NB-IoT%20Shield/passthrough/#t-mobile-coap