That's not how the Voice Command function works. That and all similar functions are in the firmware, even though some are shown as icons in 'Apps' screen they are not really separate apps that are loaded individually. You should look at the device's 140.bin to check that ASR is enabled in it. Dump region 140 from your 3590 and use Mod_2xxx.exe to check. Read this thread and see the screenshots in initial post there: [Only registered and activated users can see links. ].