MOTOROLA MT 777 PROGRAMING SOFTWARE HOW TO Calcolo Tabelle Millesimali Software Free. When it asks for a serial number enter pxdz008 When you run that software it shows a box asking you to 'select product',for my PX-777 I usually use 'PX777/328 Ch128 +2tone' I'm guessing that 2tone means DTMF. MOTOROLA MT 777 PROGRAMING SOFTWARE SOFTWARE DOWNLOAD.MOTOROLA MT 777 PROGRAMING SOFTWARE SERIAL NUMBER.MOTOROLA MT 777 PROGRAMING SOFTWARE DOWNLOAD FOR WINDOWS.MOTOROLA MT 777 PROGRAMING SOFTWARE HOW TO.