Supported devices Tipro BeFree 10 Tipro Speakerbox Imtradex PTT13-USB PTX-QD Holmco D9 Plantronics C310-M/C320-M Imtradex TM-2 Peitel PS12 Aurelis USB Note: These devices were tested for compatibility with the last SmartPTT version. Tests with other devices are in process.Tests by request are available, please contact your regional manager.