Yep. All it is...an upgraded chip that hasn't even been custom designed for srmx...there's WNC from the PR.
FLUFF...and...MANIPULATION
The newest additions to the IoT Accelerator Program are the IMS2 and IMA2 LTE-M modules from leading manufacturer WNC. These LTE-M modules offer multiple deployment options and run over the AT&T LTE-M network; the first AT&T network on a dedicated spectrum that is optimized for IoT. The WNC IMS2 LTE-M module is available now, offering great design flexibility at a price as low as $7.50 each including SIM card. The IMA2 will be available Q1 2018* and will easily integrate into designs that began with the IMS2 module.