SRS joins the FP7 FIRE FLEX project through the second open call for extensions and experiments with FLEX-IoT, a project focusing on evolving 3GPP standards for Low Power Wide Area Networking (LPWAN). Since 2008, the FIRE (Future Internet Research and Experimentation) initiative has bridged the gap between visionary research and large-scale experimentation on new networking and service architectures and paradigms. The FLEX (FIRE LTE testbeds for open EXperimentation) project provides an open and operational LTE experimental facility based on a combination of configurable commercial equipment, configurable core network software, open-source components and sophisticated emulation and mobility functionalities. Under the FLEX-IoT project, SRS will integrate their high performance software radio UE (srsUE) as an extension to the FLEX testbed facilities. Furthermore, FLEX-IoT will extend the FLEX testbed facilities to include the emerging NB-IoT features of 3GPP LTE release 13 for LPWAN. FLEX-IoT commences in April 2016 with an overall duration of 12 months.