I am using Cascademic gateway. The Gateway supports Ionos E1-Dual/Quad Band GSM Module from CASCADEMIC Solutions Pvt Ltd. This module supports both 2G(GL-865) and 3G(UL-865) from Telit, and 4G(HL-7692) from Sierra Wireless.
I couldn’t find any difference between Network agnostic mode vs cellular mode. Any pointers appreciated. Tq