LMR-P25 and LTE Mission Critical Push to Talk Interface Service

In Phase I, Catalyst proved the feasibility of an Interworking solution for LTE Mission Critical Push-to-Talk (MCPTT) and Land Mobile Radio (LMR) systems that meets the requirements of Public Safety as documented in the National Public Safety Telecommunications Council Public Safety LMR Interoperability with LTE Mission Critical Push to Talk report. In Phase II, we will combine innovations created through this study with our field proven interoperability products to deliver a software-based prototype LMR to LTE MCPTT product solution that we will commercialize in Phase III. To support the transition to LTE MCPTT we will offer a scalable architecture that leverages the Radio over IP technology that we have perfected over the last twenty years. Our solution will focus on the Project 25 standard interfaces ISSI, DFSI, and CAI and also support other standards-based and proprietary LMR systems. The Catalyst team brings decades of industry experience delivering interoperability solutions, ensuring the successful completion of this SBIR program for DHS. The result for Public Safety and other critical communicators will be the ability to effectively communicate between MCPTT and LMR devices enabling a smoother transition to LTE at a lower cost. We have identified a multi-million-dollar market for the resulting product that would allow each Public Safety agency to independently route MCPTT voice between its existing LMR system, FirstNetTM, other LTE networks, and other LMR systems.