TRx Call Recorder Windows CE - Version 4.11 TRx is a phone call recording program for Pocket PCs and Smartphones. This phone recording software allows you to manually or automatically record telephone calls on your portable device.Designed to help you meet legal call recording requirements for business the TRx phone recorder is simple to install and easy to use and you'll be ready to record telephone calls in just minutes.TRx Features~Save recordings as wave or gsm files~Automatic mirror of recordings to an alternative folder for backup~Regulates recording volumes levels automatcially~No extra hardware is needed