You seem to be aware that Voice Command won't work with your map in UAE [there are no ASR files available for CN MENA afaik], i.e. without the 'map-specific' ASR/SRX corresponding to your detail map, VC cannot work in your 'Locale' and that's the case even if you have a certain language's SRD files loaded. However, maybe if you change the 'Locale' of the unit you can activate the Icon in Apps and get some limited VC functions.