Catalyst Communications Technologies, Inc., a leading provider of Radio Control over IP solutions to the Push-to-Talk (PTT) marketplace, announced a new voice dispatch and interoperability solution for Digital Mobile Radio (DMR) called Propulsion. This graphical tool drives voice dispatch and interoperability between Project 25 (P25) and DMR Land Mobile Radios (LMRs), as well as other disparate PTT devices. The Propulsion console supports radios from multiple vendors including Harris Corporation’s MomentumDMR and P25 product lines; Harris and Catalyst are simultaneously demonstrating the product in their booths at IWCE. A Critical Communications grade solution, Propulsion supports features like Emergency, Unit ID with a centralized alias database, multiple layouts, and SimulSelect, as well as a full complement of accessories such as a PTT footswitch. Catalyst continues to be a force for change in the PTT market with groundbreaking use of modern graphics to instantly communicate the channel, interoperability scenario, individual radio user, and more. Agencies may use generic graphics included with the product or add their own custom logos, emblems and pictures to suit unique needs. System administrators can customize the user interface for each dispatcher and each shift, controlling access to radio channels, telephone lines, and capabilities like patching, while streamlining training with an intuitive presentation.