AT&T now maintains specific bands for internet of things (IoT) devices and other low-power 4G/LTE applications. To this end, the carrier has just validated the new 9205 modem for these kinds of networks and ecosystems. This Qualcomm SoC is designed to be half as big as its predecessor, while using 70% less power and 40% fewer resources.
https://www.notebookcheck.net/AT-T-approves-Qualcomm-s-new-9205-LTE-modem-for-its-IoT-bands.443698.0.html